I've always been interested in multi-axis printing but there is like no software support. Their approach to slicing is super interesting and makes a ton of sense!
I want to know more about the potential strength increases. This could be really big. I also want to see what happens when you try to build more complex parts.
As you said, mind blowing. I mostly use my printfarm to print nosecones for the model rocket kits I sell. Due to the method of layer adheasion they have a weakness for dropping hard surfaces. This method could change the way the layers form this making them stronger without needing more infill or walls.
Anything that helps in reducing the mechanical anisotropy of printed parts is welcome, that actually interests me more than the overhangs not needing supports because for that we have many solutions (good profile and printer tuning for easily removable supports, dissoluble supports) whereas we don't have a lot of ways to drastically increase inter-layer adhesion. Having used a Blackbelt printer in the past, just having a different strength distribution was already quite interesting, this new concept must be even more exciting ! What about doing some mechanical tests on these conical printing samples :D Also, kinda cool to see some open source 3D printing from my own country :p
i´m a machinist programming 9 axis mill turn on a daily basis and i can´t wait for 3d printing getting rotational axis, there is so much potential in 5 axis 3d printing. No supports, parts with reinforcing layers that are going three dimensionally over the part, that help distributing forces, reinforcing the weakspots and eliminating layeradheasion as a limiting factor etc. ...
my thought was similiar "if we add another axis to be able to rotate the nozzle, we could smoothly switch between different print methods" but the approaches all have the same issue we need a slicer code able to execute it i think the mechanical challenge will always be the smallest part it will always be about the code that causes the slow development
I am no engineer, but I'm worried more axis might be a little two much stress and complication for the filament that we use today. And what if the new printers need different material and non of the producers catch up. Burring new printers from the beginning? Like others said we are still on the dawn of additive manufacturing. Nothing is set. I just don't trust the big industries. I will put my trust in us, the creators because this is really exciting
@@mad-0614 I can see this being a problem with some materials, with abs I don’t think that it would be much of an issue but I have had pla‘s that we’re pretty brittle wich definitely could be a problem
Actually, the hardware was never the bottleneck, as a cnc post processor programmer, we know as a matter of fact that you can add more axes on the go but trajectory calculations for that axis is a much harder task. And it gets harder as we add non linear axes. But hopefully more developer's will join on the train.
Seeing techniques like this shows that we're still at the dawn of FDM printing, and I'm certain that we're going to see great advances in coming years to improve speed, quality, and function!
To me, it's like we're just getting into the Model T era of printing. We're going to places that we only dreamed of even a few years ago at this price point.
@@BigBlack81 It's like looking back at CD-R's when the first drives were hundreds of dollars, and wrote to $50 blanks at 150kb/s. Now we stuff GBs worth of data to SSDs in mere moments, and it costs next to nothing to do so!
We are not at the dawn of FDM. We are simply at the point where 2.5D printing is finally getting the 3 and up axis it should have had a decade ago! LinuxCNC is open source and has had multi-axis capabilities for well over a decade(EMC was from the 90's). Why has it taken this long for additive technology to catch up? Clearly it is all about managing angles with flow, that is rather simple volumetric math. You remember that robotic FDM (6 axis + rotating table!) FDM That was YEARS ago. Where is it now? It made non-planar prints with ease. Money. That is what the real hold-up is. People want to earn a living. I don't blame them, giving thousands of lines of code away to everyone for little to no return is not very appealing in these days. Not to mention all the complaints and bug reports ;-) Multi-axis printing has been around but has only slowly been trickled to the printing world we all reside in. Maybe it also has something to do with patents.
@@leofortey7561 yes it is all old 80s tech. people forget it was patents that kept it from being widely available, not tech. just wait for more newer patents to shut this down too...
The idea of pre-distorting the object before slicing it and then un-distorting the code afterwards to get the desired results from an existing slicer without writing a whole new slicer to do the task is genius. I did think that the extra axis would be to control head tilting, that way it can still behave like a regular FDM 3D printer, but the tilt ability would then allow the printer to do overhangs etc. without support.
This is what one of the rocket manufacturer does with its 3d welding machine to print the whole tank. Its slices and adds some pre-deformed calculations and so when it prints it is now a proper print. This is done because welding deforms the metal so without this technique it would be a very distorted tube.
An IDEX printer which combines both technologies would be absolutely killer. One printhead could completely cover the weaknesses of the other, and it still eliminates significant waste because IDEX doesnt need a large purge tower.
Pre deforming the part and then running it through a regular slicer is freaking brilliant. I can't believe I never thought of that. There is so much you could do with that. Heck screw cones, use a parametric curve. No more shear planes that way...
Wow, this looks huge! Simple, yet effective. Making it open source will make it possible for many people to try out this new technique and improve the design further. Maybe a design with an additional axis to tilt the printhead between -45 and 45 degrees could take care of the inwards facing overhangs.
If you can get the RotBot team to print you some testing dog bones and some test hooks I'd love to see a strength comparison of this conical slicing compared to planar slicing!
I would reall love to see this 6-axis printer, with tilting base. This should make printing overhangs with no support even better, but of course it is more complex and costly, so this modified prusa with tilted nozzle is an interesting cost-effective option.
@@greatestevar Given that WE would not be programming it, your claim applies to the select few who will do so, the rest of use would just be users of the software….but even then, not so much as 6 Axis machines have been around for awhile. So it’s not like the human race hasn’t had any experience with it. Also, there was one int he video. So it has already been done.
I’m glad you finally got to go and see this. I was hoping you would since the it first hit the 3D printing news sites. Very interesting indeed. The conical slicing is a clever trick. With some effort, I could see it being somewhat more generalized with a tool that segments a more complex part in to blocks each having their own pre-warp and post slicing de-warp.
I think it is "next evolution of 3D printing", as this will help speed up CAD/CAM effort, material waste, more automation. Yes, will be slow and hard at first but it is an investment in the right place. I have been trying to do the same and seeing this is very encouraging , thank you for awesome content!
I’d almost be impressed if I didnt just see a 5 axis machine on a Prusa i3 earlier today. ERRF attendees talked about you a lot today Stefan! Hope we can see you at a future ERRF!
Wow that spinning head made my head spin, had to watch this twice & finally understood the basics about conical slicing, thanks for explaining that Stephen.
This is essential for FDM to move forward. We have stalled on 2D printing + Z (a more accurate description) and weak layer adhesion. Would be interesting to see strength differences and see if we can get true anisotropy. The next step would be a rotating nozzle from 45-90 degrees.
I've been looking forward to non-planar layer deposition for a long time, but mainly to improve top layer surface quality. Extending it through the part looks likely to significantly improve part strength due to the effect you mention.
There is an chinese approach which does the following: 1. Define the object in a voxel grid. (Small box of size dxdxd, where d is the diameter of the nozzle) 2. Calculate the reverse print aka how a CNC machine would destroy our object in layers, one voxel at most per layer. 3. Calculate the moving convex hull of our object, while simulating the print. 4. Calculate reachability of voxels, while simulating the print. 5. Use 2/3/4 to define an order of voxels to print, while printing on existing voxels. 6. When done, combine the voxels of step 5 to groups of voxels. 7. Calculate the actual geometric layers, from step 6. => The result are 3D complex layers that can only be printed on a 4+ Axis system.
This is a fantastic idea and what would make it even more versatile is to have a head that can tip to any angle instead of just a predefined 45 degree angle. I could see taking a dual filament machine, setting up one head on the 45 and the other on the standard and then creating the code so that the best head is used for each independent layer.
There is a 5-axis version of this somewhere around (I think even Rene Mueller built one) but this introduces even more complexity into slicing and flexibility into the tool head.
I want this on my printer yesterday. I hope Prusa3D is taking a good look at this and trying to implement it, because I would buy that printer instantly. I do mostly mechanical parts and not having to worry about overhang limitations is an absolute gamechanger.
An approach to fixing the inward overhang would be morphing the stl non uniformly, basically instead of a 45° cone, you could make it so that along the y axis you are at 45° inward, and along the x 45° outward, making a saddle shape or even slicing inwards to 1 inch off of the center, and then outward, it's fairly free, you're already converting cartesian to polar and then scaling up or down, so you just have to apply a curve that takes into account the position along the polar coordinates and applies a pair of curves instead of a set angle from just the distance. Automatic overhang detection exists, so mapping overhang position vs the angle and distance should be doable, and automatic curves may be created.
You're exactly right. Came to the same conclusion as I watched. Some of the edge cases could be trickier to fix - detecting and modifying travel moves that would otherwise result in a crash, for example - but not impossible I'm sure.
@@bobthecannibal1 Good point. Sounds like an interesting problem though. No need to complete one "layer" before starting the next, necessarily, so perhaps there's an ordering problem buried in here.
Hi Stefan this is amazing and I'll have a look for details for sure, I'm thinking to update my diy Prusa based 3d printer, as soon I have a time I'll start to implement it, thanks for sharing!!! Greetings from Cham/ BY
@@CNCKitchen You where. I was making fun of the fact that I am still so uneducated in many things. Watching your channel teaches me many things. So thank you for your hard work. Baie dankie, ek sien uit na die volgende video.
would be intresting to try it on printer with kinematic beds, who would be able to mitigrate the digging of the nozzle into the already printed lines a bit
I'm really excited for mainstream non-planar printing and slicing. I hate wasting material because I just never throw the stuff away. And from an engineering standpoint being able to compensate for the (material) non-linearity of 2.5D printing with non-planar printing is a huge improvement.
Conical slicing as described is still using only a fraction of the abilities of this printer! The printer has 4 degrees of freedom but the slicer can use only 3. Smarter slicing will be able to use all 4 DOF.
I could be wrong, but I'm pretty sure the "sample overhanging part" shown at 6:28 is the z-axis bearing holder from a Hypercube Evolution. Kinda cool to see a part I've printed for one of the first printers I ever made on a big channel like this.
As someone who managed applications for a 5 axis 3d printer building company, this is huge! We've mostly used a modified version of Mastercam, which doesn't really make itself available for makers, let alone the custom plug in.
Stephan never ceases to amaze with his ideas to cover the unique and fringe applications of 3D printing and the excellent quality of his videos, congratulations and thanks. This technique would be perfect on my TronXY X5SA-400 or ANY large format printer were you can imaging printing a section of a car bumper skin that no mater how you angle it in slicer still has considerable overhangs, print time, and waste plastic, With this printing technique, there would be essentially no supports (or very minimal) and print time would be dramatically reduced, and waste almost eliminated.
This seems really similar to your non-planar 3d printing video you made a little while ago! It's cool that so many tricks can be pulled off by modifying what the "plane" is in planar slicing, and it feels like we're just scratching the surface of what's possible.
one thing touched on in the video I think is going to make a huge difference on current gen-fdm printers is a more complex slicing that can intelligently section off geometry that can be printed either in a specific order, or with a different slicing technique to improve performance and speed. It seems that the state of the art is a naive, uniform approach, but it can be significantly better. And an entirely new piece of hardware wouldn't even be necessary.
The thing with development of slicing software for those machines is that you need to somehow bring together people with the necessary Backgrounds, that are willing to pour a ton of time into this project. I mean, you'd need people, who know exactly what this printer can do and how it does it mechanically, as well as people, who know how to write a slicing algorithm and someone, who knows the math to pull it all together. I'm really glad they open sourced their concept, so that everyone interested can put their ideas in it. I think this is the beginning of something awesome
Amazing! is it possible that printed parts with this method are stronger? because of the way the lines are printed. You could make a test comparing regular 3d prints vs non planar, I am curious specially if the layer bonding problem can be solved at least for some geometries
Sounds like the industry is going forward. Might be great as a separate tool head in the Prusa XL. There is also the the opportunity to and an additional axis for all angles for the extruders.
It still needs supports in some cases like bridge like things. Solution is both rotating table and hotend together to get rid of supports at all. I'm sure that kind of machines exist in 3D printing world but it should be far expensive than the ones we have in our homes..
This looks so cool! Of course when I see an extra stepper on the hotend, *my* first thought is “ooh! Move the second stepper to the other end of the X axis! CoreXθ!”
Good afternoon all, This is a phenomenal breakthrough, I have been looking in to all the files including the script files in Python, excellent work, nevertheless one thing is missing is all that, the marlin configuration and modification files, also how and where connect the Z-Rotation motor to, it would be nice to have some complete concise Opensource compilation of all this so that amateurs like me can make one and be part of the testing bodies. Thanks guys
Can you get some test pieces to run through your test apparatus? To see if the conical shape layers are better or worse than standard layers. It seams it may have a slight impact as the shear forces would no lender be parallel to layers..
Wonder if its possible to put the head on an iris or some mechanism and print with 2,3,4...8 etc heads at the same time since it's sliced into a circle. You'd have to expand the heads radius as an axis and move the bed XY much less.
I guess the ideal point to apply the T^{-1} transformation might be at the printing stage since if you have mesh levelling corrections they will probably not work with the inverse transformation already applied, right?
Or have the hotend only tilt to different angles and have a build plate that rotates. Then you could use a bigger stepper to accelerate the build plate rotationally more quickly, not have a cantilevered hotend, and less mass on the hotend as well. Maybe even a simple hotend swap with a hotend at a predefined 45 degree for simplicity/ weight reduction
Das Beste an der Metote zu drucken ist, das man keine Stützstruktur mehr benötigt! Deswegen fände ich es cool wenn diese Technik bald für Privatanwender verfügbar wäre! Zum Beispiel wäre es doch schön, einen Prusa Mk4 mit der 4 Achsentechnik kaufen zu können! Dieses Thema finde ich sehr interessant und werde es weiter verfolgen! :)
Don't know if it has been mentioned, there is also an older attempt for nonlinear slicing called Curvislicer which builds on an older Slic3r version , and open source is awesome, printing with a robot arm was shown off at Formnext 2018 but proprietary of course
This looks very promising, though I do have to wonder, if the only advantage of the rotating hotend assembly is that the nozzle wouldn't impact the extruded material, would it not make more sense to only make a custom rotating nozzle with a 45 degree cut on the bottom surface still facing down like in a conventional printer?
Agree, over hangs is a big limitation and conical printing while adds a layer of complexity is an ingenious step forward. Super interesting and curious to see where this is going to go.
Oh damn, I was imagining a system to no longer need supports!!! I thought of a 45° swivel head, but in my idea, the plate should also tilt. I see we're never the only ones thinking the same thing..
![Blox Fruits Dragon Rework Update [Full Stream]](http://i.ytimg.com/vi/EqDAp8udhm0/mqdefault.jpg)
What do you think about the RotBot and Conical Slicing? Niche application or the next evolution of 3D printing!
wow
I've always been interested in multi-axis printing but there is like no software support. Their approach to slicing is super interesting and makes a ton of sense!
I want to know more about the potential strength increases. This could be really big. I also want to see what happens when you try to build more complex parts.
As you said, mind blowing. I mostly use my printfarm to print nosecones for the model rocket kits I sell. Due to the method of layer adheasion they have a weakness for dropping hard surfaces. This method could change the way the layers form this making them stronger without needing more infill or walls.
Anything that helps in reducing the mechanical anisotropy of printed parts is welcome, that actually interests me more than the overhangs not needing supports because for that we have many solutions (good profile and printer tuning for easily removable supports, dissoluble supports) whereas we don't have a lot of ways to drastically increase inter-layer adhesion.
Having used a Blackbelt printer in the past, just having a different strength distribution was already quite interesting, this new concept must be even more exciting !
What about doing some mechanical tests on these conical printing samples :D
Also, kinda cool to see some open source 3D printing from my own country :p
i´m a machinist programming 9 axis mill turn on a daily basis and i can´t wait for 3d printing getting rotational axis, there is so much potential in 5 axis 3d printing. No supports, parts with reinforcing layers that are going three dimensionally over the part, that help distributing forces, reinforcing the weakspots and eliminating layeradheasion as a limiting factor etc. ...
my thought was similiar
"if we add another axis to be able to rotate the nozzle, we could smoothly switch between different print methods"
but the approaches all have the same issue
we need a slicer code able to execute it
i think the mechanical challenge will always be the smallest part
it will always be about the code that causes the slow development
Like 3d plywood
@@firebladeentertainment5739 agreed.
I am no engineer, but I'm worried more axis might be a little two much stress and complication for the filament that we use today. And what if the new printers need different material and non of the producers catch up. Burring new printers from the beginning? Like others said we are still on the dawn of additive manufacturing. Nothing is set. I just don't trust the big industries. I will put my trust in us, the creators because this is really exciting
@@mad-0614 I can see this being a problem with some materials, with abs I don’t think that it would be much of an issue but I have had pla‘s that we’re pretty brittle wich definitely could be a problem
We are getting there folks. Our hardware has been capable of multi axis for a while. This is huge
Well hardware is basically just steppers. Slicing algorithms are everything
Now we only need to get software developers on board!
Actually, the hardware was never the bottleneck, as a cnc post processor programmer, we know as a matter of fact that you can add more axes on the go but trajectory calculations for that axis is a much harder task. And it gets harder as we add non linear axes. But hopefully more developer's will join on the train.
And Im still forgetting to level the bed, in not a long time I will be able to forget to level the bed non planarly
I would love to code for this project if possible, i am a CAD DEVELOPER , not sure if that can help.
Seeing techniques like this shows that we're still at the dawn of FDM printing, and I'm certain that we're going to see great advances in coming years to improve speed, quality, and function!
To me, it's like we're just getting into the Model T era of printing. We're going to places that we only dreamed of even a few years ago at this price point.
@@BigBlack81 It's like looking back at CD-R's when the first drives were hundreds of dollars, and wrote to $50 blanks at 150kb/s. Now we stuff GBs worth of data to SSDs in mere moments, and it costs next to nothing to do so!
We are not at the dawn of FDM. We are simply at the point where 2.5D printing is finally getting the 3 and up axis it should have had a decade ago! LinuxCNC is open source and has had multi-axis capabilities for well over a decade(EMC was from the 90's). Why has it taken this long for additive technology to catch up? Clearly it is all about managing angles with flow, that is rather simple volumetric math. You remember that robotic FDM (6 axis + rotating table!) FDM That was YEARS ago. Where is it now? It made non-planar prints with ease. Money. That is what the real hold-up is. People want to earn a living. I don't blame them, giving thousands of lines of code away to everyone for little to no return is not very appealing in these days. Not to mention all the complaints and bug reports ;-)
Multi-axis printing has been around but has only slowly been trickled to the printing world we all reside in. Maybe it also has something to do with patents.
@@leofortey7561 yes it is all old 80s tech. people forget it was patents that kept it from being widely available, not tech. just wait for more newer patents to shut this down too...
Have you seen the upside down 3D printers ? these are so cool and solve many of the problems of traditional printers !
impressive project! 👏
Thank you! Cheers!
@@CNCKitchen were you involved? I thought this is a ZHAW project
Yooooo
This is one of those "why didn't I think of that" ideas. So elegant - I'm hoping it catches on.
The idea of pre-distorting the object before slicing it and then un-distorting the code afterwards to get the desired results from an existing slicer without writing a whole new slicer to do the task is genius.
I did think that the extra axis would be to control head tilting, that way it can still behave like a regular FDM 3D printer, but the tilt ability would then allow the printer to do overhangs etc. without support.
This is what one of the rocket manufacturer does with its 3d welding machine to print the whole tank. Its slices and adds some pre-deformed calculations and so when it prints it is now a proper print. This is done because welding deforms the metal so without this technique it would be a very distorted tube.
An IDEX printer which combines both technologies would be absolutely killer. One printhead could completely cover the weaknesses of the other, and it still eliminates significant waste because IDEX doesnt need a large purge tower.
Pre deforming the part and then running it through a regular slicer is freaking brilliant.
I can't believe I never thought of that. There is so much you could do with that. Heck screw cones, use a parametric curve. No more shear planes that way...
Awesome video!! I'm tempted to give it a go!! Thanks for sharing!
Appreciate the SuperThanks! Definitely take a closer look at it and if it's just the "Variable Angle" Version for regular printers.
Wow, this looks huge! Simple, yet effective. Making it open source will make it possible for many people to try out this new technique and improve the design further. Maybe a design with an additional axis to tilt the printhead between -45 and 45 degrees could take care of the inwards facing overhangs.
If you can get the RotBot team to print you some testing dog bones and some test hooks I'd love to see a strength comparison of this conical slicing compared to planar slicing!
Absolutely! For a vertical dog bone, there's quite a bit more inter-layer surface area for bonding.
Working on it!
I would reall love to see this 6-axis printer, with tilting base. This should make printing overhangs with no support even better, but of course it is more complex and costly, so this modified prusa with tilted nozzle is an interesting cost-effective option.
my employer makes 5-Axis CNC machines which have FDM functionality as well.
@@CypherAod And what slicer do you use with it?
@@greatestevar Given that WE would not be programming it, your claim applies to the select few who will do so, the rest of use would just be users of the software….but even then, not so much as 6 Axis machines have been around for awhile. So it’s not like the human race hasn’t had any experience with it. Also, there was one int he video. So it has already been done.
There was one in the video….
I’m glad you finally got to go and see this. I was hoping you would since the it first hit the 3D printing news sites. Very interesting indeed. The conical slicing is a clever trick. With some effort, I could see it being somewhat more generalized with a tool that segments a more complex part in to blocks each having their own pre-warp and post slicing de-warp.
Thats tottaly amazing!! Hope to see that in a future very close. Thanks for sharing this video man
VZbot might need a Hevort bed; this would work great then…
I think it is "next evolution of 3D printing", as this will help speed up CAD/CAM effort, material waste, more automation. Yes, will be slow and hard at first but it is an investment in the right place. I have been trying to do the same and seeing this is very encouraging , thank you for awesome content!
I’d almost be impressed if I didnt just see a 5 axis machine on a Prusa i3 earlier today.
ERRF attendees talked about you a lot today Stefan! Hope we can see you at a future ERRF!
Thanks! I'm a bit heartbroken to not be at ERRF this year but it was just too much traveling for me this month. I'll hopefully be there next year.
Wow that spinning head made my head spin, had to watch this twice & finally understood the basics about conical slicing, thanks for explaining that Stephen.
This is essential for FDM to move forward. We have stalled on 2D printing + Z (a more accurate description) and weak layer adhesion. Would be interesting to see strength differences and see if we can get true anisotropy. The next step would be a rotating nozzle from 45-90 degrees.
I've been looking forward to non-planar layer deposition for a long time, but mainly to improve top layer surface quality. Extending it through the part looks likely to significantly improve part strength due to the effect you mention.
Respect to whoever programs the slicer for these things . I can't imagine how you do that
There is an chinese approach which does the following:
1. Define the object in a voxel grid. (Small box of size dxdxd, where d is the diameter of the nozzle)
2. Calculate the reverse print aka how a CNC machine would destroy our object in layers, one voxel at most per layer.
3. Calculate the moving convex hull of our object, while simulating the print.
4. Calculate reachability of voxels, while simulating the print.
5. Use 2/3/4 to define an order of voxels to print, while printing on existing voxels.
6. When done, combine the voxels of step 5 to groups of voxels.
7. Calculate the actual geometric layers, from step 6.
=> The result are 3D complex layers that can only be printed on a 4+ Axis system.
Thank you for bringing this to our attention! Fantastic!!!
I think I might try to implement 5-axis in my next printer build to future proof it. (Adding rotation and adjustable angle.)
I wonder if those really pointy nozzles that use the airbrush tips would be useful?
I think this the the best and decievingly the simplest approach to the non-planar slicing thought process.
1:45 i love how they're using high voltage insulators and cables as supports (or looks) that's cool :D
Another great video, the cutting edge of 3D printing is not exposed enough, great job for showing this. More content like this wouls be welcome.
Thanks! Appreciate this!
I'm always amazed by the insightful videos you create, they are very interesting. Great work.
Thank you very much!
Alleine die Bewegung des Druckkopfes ist schon einfach nur satisfying 😀
Ich hab' minutenlang einfach nur den Druck angeschaut. Wirklich toll!
This is a fantastic idea and what would make it even more versatile is to have a head that can tip to any angle instead of just a predefined 45 degree angle. I could see taking a dual filament machine, setting up one head on the 45 and the other on the standard and then creating the code so that the best head is used for each independent layer.
There is a 5-axis version of this somewhere around (I think even Rene Mueller built one) but this introduces even more complexity into slicing and flexibility into the tool head.
This is the coolest thing i've seen in this week. Danke Stefan
I want this on my printer yesterday. I hope Prusa3D is taking a good look at this and trying to implement it, because I would buy that printer instantly. I do mostly mechanical parts and not having to worry about overhang limitations is an absolute gamechanger.
Finally, 3D Printing is moving beyond 2D. Kudos to the team. Now we need Slicers to catch up with hardware.
I studied there 4years ago mechanical engineering with focus in 3D printing. Nice to see it on youtube
I really enjoyed visiting the ZHAW!
I like these non planar printing discussions. And adding more axis it’s always good too
An approach to fixing the inward overhang would be morphing the stl non uniformly, basically instead of a 45° cone, you could make it so that along the y axis you are at 45° inward, and along the x 45° outward, making a saddle shape or even slicing inwards to 1 inch off of the center, and then outward, it's fairly free, you're already converting cartesian to polar and then scaling up or down, so you just have to apply a curve that takes into account the position along the polar coordinates and applies a pair of curves instead of a set angle from just the distance.
Automatic overhang detection exists, so mapping overhang position vs the angle and distance should be doable, and automatic curves may be created.
You're exactly right. Came to the same conclusion as I watched. Some of the edge cases could be trickier to fix - detecting and modifying travel moves that would otherwise result in a crash, for example - but not impossible I'm sure.
The big concern with that is collisions. There are cases where you can't get a tool (nozzle) in the space available with any arbitrary transformation.
@@bobthecannibal1 Good point. Sounds like an interesting problem though. No need to complete one "layer" before starting the next, necessarily, so perhaps there's an ordering problem buried in here.
When companies perfect this, just like CNC's, it's going to be EPIC.
Hi Stefan this is amazing and I'll have a look for details for sure, I'm thinking to update my diy Prusa based 3d printer, as soon I have a time I'll start to implement it, thanks for sharing!!!
Greetings from Cham/ BY
Amazing, and about 50% over my head. the rest makes me happy to follow your channel.
I hope I was at least a bit able to explain the principle in an easy to follow way.
@@CNCKitchen You where. I was making fun of the fact that I am still so uneducated in many things. Watching your channel teaches me many things. So thank you for your hard work.
Baie dankie, ek sien uit na die volgende video.
This was a truly great video, you made the complex Sclicing understandable for the masses.
would be intresting to try it on printer with kinematic beds, who would be able to mitigrate the digging of the nozzle into the already printed lines a bit
I love this video and would love to see more of this kind of videos on new developments in the field
Michael is my Professor at the ZHAW!!
I really enjoy his lectures.
I'm really excited for mainstream non-planar printing and slicing. I hate wasting material because I just never throw the stuff away. And from an engineering standpoint being able to compensate for the (material) non-linearity of 2.5D printing with non-planar printing is a huge improvement.
Conical slicing as described is still using only a fraction of the abilities of this printer!
The printer has 4 degrees of freedom but the slicer can use only 3.
Smarter slicing will be able to use all 4 DOF.
I've never seen anything like this. this is the future of 3D printing
I could be wrong, but I'm pretty sure the "sample overhanging part" shown at 6:28 is the z-axis bearing holder from a Hypercube Evolution. Kinda cool to see a part I've printed for one of the first printers I ever made on a big channel like this.
This is amazing!! Fantastic work! The maths behind the scripts must be quite hefty.
It's honestly really simple.
4D printing is going to be big! My biggest problem with small parts is the supports! i’ll be busy researching this!! 🎉
As someone who managed applications for a 5 axis 3d printer building company, this is huge! We've mostly used a modified version of Mastercam, which doesn't really make itself available for makers, let alone the custom plug in.
Ok the "pre deformation" step is absolutely wild! _that_ is fricken cool
Why does the whole heater block need to be tilted instead of just the aperture at the end of the nozzle?
One reason is, that you need clearance and it may not be very easy to produce. But just give it a try...
@@michaelwuthrich72 I see what you mean, but there might be a compromise there, as the 45deg heater block has its own clearance issues.
Stephan never ceases to amaze with his ideas to cover the unique and fringe applications of 3D printing and the excellent quality of his videos, congratulations and thanks. This technique would be perfect on my TronXY X5SA-400 or ANY large format printer were you can imaging printing a section of a car bumper skin that no mater how you angle it in slicer still has considerable overhangs, print time, and waste plastic, With this printing technique, there would be essentially no supports (or very minimal) and print time would be dramatically reduced, and waste almost eliminated.
Finally i hope quality manufacturers will put more Research and development into this
Brilliant! I think there really is something here.
watching the RotBot print is so mesmerising!
This is amazing. I'm looking forward to seeing your tests on the strength of parts made using this method.
I've always thought about doing this with a delta and varying the arms to tilt the head. Don't know enough how to make that happen.
This is insane!! 👏👏 It's like an anet A8 printer with a 6 axis robot arm! This one little mashine that thinks it can brings all my hope up for mankind
This is the next step for mainstream 3D printers. What a great time to be alive!
mixing the spider bit with the idea you created a robo cat that knocks everything over it think Black Kitto would be a cool and funny name
Strengthening of prints beyond the standard print axis - totally fresh. :)
This seems really similar to your non-planar 3d printing video you made a little while ago! It's cool that so many tricks can be pulled off by modifying what the "plane" is in planar slicing, and it feels like we're just scratching the surface of what's possible.
This feels like the beginning of something really important
This is incredible!! Just the cost this cuts in filament is outstanding
Impressive find
Great video as always 😀
Thanks for sharing your expirence with all of us 😃
Cooling is probably better with that rotating fan as well, the cooling would be multi axis and cool the part evenly from all sides
I would love to see them print some of your test parts so we could see how much of a strength improvement it might make.
one thing touched on in the video I think is going to make a huge difference on current gen-fdm printers is a more complex slicing that can intelligently section off geometry that can be printed either in a specific order, or with a different slicing technique to improve performance and speed. It seems that the state of the art is a naive, uniform approach, but it can be significantly better. And an entirely new piece of hardware wouldn't even be necessary.
The thing with development of slicing software for those machines is that you need to somehow bring together people with the necessary Backgrounds, that are willing to pour a ton of time into this project. I mean, you'd need people, who know exactly what this printer can do and how it does it mechanically, as well as people, who know how to write a slicing algorithm and someone, who knows the math to pull it all together.
I'm really glad they open sourced their concept, so that everyone interested can put their ideas in it. I think this is the beginning of something awesome
Thank you for the great video Stefan. Very well explained (I could not do it better... ;-)).
Thanks for the opportunity to visit you!
Looks very impressive!
Amazing! is it possible that printed parts with this method are stronger? because of the way the lines are printed. You could make a test comparing regular 3d prints vs non planar, I am curious specially if the layer bonding problem can be solved at least for some geometries
Sounds like the industry is going forward. Might be great as a separate tool head in the Prusa XL. There is also the the opportunity to and an additional axis for all angles for the extruders.
It still needs supports in some cases like bridge like things. Solution is both rotating table and hotend together to get rid of supports at all. I'm sure that kind of machines exist in 3D printing world but it should be far expensive than the ones we have in our homes..
I'm hoping that Prusa is internally testing this out. I'd totally buy one of these.
would be interesting to see you do the test on your rapido with the Rene Jurack Airbrush nozzle
Oh, I have one right here! Great idea!
Wonderful, removing support structures is huge save both in time and material. Huge step into advance 3D-printing
The hobby needs new ideas like this to keep the fire going
Belt driven Z axis instead of the traditional screw, wouldn't that increase the speed?
This looks so cool! Of course when I see an extra stepper on the hotend, *my* first thought is “ooh! Move the second stepper to the other end of the X axis! CoreXθ!”
How do you make the first level with a 45 degree print head? it just seems like the first layer adhesion would be unreliable since its at an angle
How does the increased weight of the new head affect the speed, printing, ?
Good afternoon all,
This is a phenomenal breakthrough, I have been looking in to all the files including the script files in Python, excellent work, nevertheless one thing is missing is all that, the marlin configuration and modification files, also how and where connect the Z-Rotation motor to, it would be nice to have some complete concise Opensource compilation of all this so that amateurs like me can make one and be part of the testing bodies. Thanks guys
Danke für das Klasse Video hoffe sowas wird weiter entwickelt. 💪💪💪💪
Really interested in a parts strength testing episode on this! Very cool tech.
Can you get some test pieces to run through your test apparatus? To see if the conical shape layers are better or worse than standard layers. It seams it may have a slight impact as the shear forces would no lender be parallel to layers..
Definitely the future of 3D printing imo
Wonder if its possible to put the head on an iris or some mechanism and print with 2,3,4...8 etc heads at the same time since it's sliced into a circle. You'd have to expand the heads radius as an axis and move the bed XY much less.
This is the peak of 3d printing
Exciting!
It has been amazing watching an entirely new manufacturing discipline take form.
I guess the ideal point to apply the T^{-1} transformation might be at the printing stage since if you have mesh levelling corrections they will probably not work with the inverse transformation already applied, right?
Works like this always make my heart jump
Or have the hotend only tilt to different angles and have a build plate that rotates. Then you could use a bigger stepper to accelerate the build plate rotationally more quickly, not have a cantilevered hotend, and less mass on the hotend as well.
Maybe even a simple hotend swap with a hotend at a predefined 45 degree for simplicity/ weight reduction
I was wanting to get a 4th printer and didn't have a idea what I wanted...I think this is a great project to build...
Das Beste an der Metote zu drucken ist, das man keine Stützstruktur mehr benötigt! Deswegen fände ich es cool wenn diese Technik bald für Privatanwender verfügbar wäre! Zum Beispiel wäre es doch schön, einen Prusa Mk4 mit der 4 Achsentechnik kaufen zu können!
Dieses Thema finde ich sehr interessant und werde es weiter verfolgen! :)
Don't know if it has been mentioned, there is also an older attempt for nonlinear slicing called Curvislicer which builds on an older Slic3r version , and open source is awesome, printing with a robot arm was shown off at Formnext 2018 but proprietary of course
This looks very promising, though I do have to wonder, if the only advantage of the rotating hotend assembly is that the nozzle wouldn't impact the extruded material, would it not make more sense to only make a custom rotating nozzle with a 45 degree cut on the bottom surface still facing down like in a conventional printer?
Agree, over hangs is a big limitation and conical printing while adds a layer of complexity is an ingenious step forward. Super interesting and curious to see where this is going to go.
Oh damn, I was imagining a system to no longer need supports!!! I thought of a 45° swivel head, but in my idea, the plate should also tilt. I see we're never the only ones thinking the same thing..