Any upload like this one that can make me laugh in the face of adversity gets a thumbs up 👍🏻 Please keep your videos coming. 3d printers are great, but 5 axis CNC machines and injection moulding kicks-arse!!! 👌😂🤓
Oh gosh, I always have a dozen projects in various completion states at any given moment in time. Nice work! I'm a nurse now but was at an engineering school research unit for many years. Vitamin D3 and Vitamin C for healing the bone and tissue trauma recovery.
I’m surprised nobody has yet mentioned “I put a handle on it so I can take it to parties and stuff.” You are incredibly quotable, and it adds a nice touch to your very informative videos. Subscribed and waiting in anticipation...
Alright thank you the dog seems good after the accident, thank you for the share, remembering our first trip to have made our injection molded case for our piezo buzzer detection unit many years ago now. You get that arm better, never broke anything but hear it hurts. Lance & Patrick.
Thanks guys! My arm is better now. They took the cast off after 1 week because apparently that makes it heal faster It really did, but everything hurt like hell for awhile so it slowed me down!
I worked on an injection molding machine and the plastic was melted over 4 different elements and in a longer nozzle and screw and all the elements were independently temperature controlled. It was hydraulically controlled and the molds went up and down with no guide bars in the way of operating it. On that machine was no need for a hopper but there was a motor to suck up the plastic from the bag it came in. The molds had an option for cooling going through them "just a garden hose" and you needed to use both hands to start it for safety. And the plastic was preheated in the nozzle before melting.
Hmm very interesting. I'm going to refine the design with a longer screw I think. Sadly I think I'm stuck with electric actuation and a hopper though. I wonder if I could implement cooling...
It seems that this project is almost dead after so long. The first thing you need to consider is that the entire process is a heat pump. Heat in equals heat out. Once the barrel heaters have melted the material, the dynamic action of the screw converts the mechanical energy into thermal energy. It appears that your home made screw has no compression zone at the tip. At that point, if you have insulation, the barrel heaters should by running a duty cycle around 30% with the machine cycling. You need a mould temperature controller, firstly to bring the mould up to the correct operating temperature, then to remove the process heat which will allow the moulded part to reach its safe demoulding temperature. The injection unit needs lots of power, your small parts should be filling in less than a second. Then you need to switch your filling unit to a packing phase, which will maintain a constant pressure while the moulding cools, contracts, and shrinks. I recommend the Arburg reference book as a primer, I have used that over the years teaching the subject. good luck
Good luck with your upcoming surgery. I've had keratoconus for going on 40 years. Not any of my business, but I was advised that laser surgery wasn't recommended since it thins out the cornea. Btw, I wear Scleral Lenses, they really have helped my keratoconus.
Thanks for the heads up. The surgery is a new one I guess, they said it previously couldn't be treated with lasers. Nice to know about scleral lenses, I may still have to get those
Looks like a awesome design. I got the controller figured out... 3D printer setup Marlin and RAMPS board... with the LCD controller like 40 bucks total. I use Gcode to program it. Still unfinished as have issues with molds, and ejection pins. Also the compression molder and hydraulic log splitter injection molder have taken up time
One thing you may want to do is make the mold holding plates similar to a fixture plate for a cnc mill one example sauders machine works fixture plates and use clamps similar to a cnc mill at my work we have injection molding machines with this kind of setup for holding the two half of the mold so all you do is lineup the injection port and clamp it down
to ptoduce a tapered thread on a manual lathe you use the taper attachment with the screw cutting gearbox to make your auger cut a tapered thread and machine off the od to a cylinder.
I was going to say - I'd have no problem making this on a manual lathe. The coding might be difficult, so I second Elanman on having one of the machinists cut this on a manual lathe ^^
I do agree the easiest way is to get someone else to do it on a manual lathe but I meant to say that it is possible to define a tapered threading opperation on your machining centre I think it is G76 with parameter i to define the taper. then reduce the OD to a cylinder.
Plot twist: I don't have a taper attachment, though the winning plan so far is to use the threading gearbox and just "wing" the taper. I think it will be okay with the right grind
Looks like a proper build. I know the feeling with projects. I have two right now that are at 90% but just can't seem to make it across the finish line.
Curious that we share the same interests and now he have the same job. Single drive extruders can have a tendency to just spin the mixture and not extrude anything. However, they are commonly used. I imagine surface finish be key. You may need to have the screw PTFE (or something that can handle the heat better) coated so that the mix doesn’t stick to it. Also there are only four screws holding in that extruder. Either a piece of arm bone broke off and made it to your brain, or you’ve slowly come to terms with your fastener addiction... P.S finish the mini lathe or I’ll leave comments with empty threats.
You actually want the mixture to stick to the screw! It's the barrel wall that you want it to slip at. This is why you typically have to cool the screw if you're running The heaters for a long time.
Empty threats? You wouldn't dare! I'm going to try to polish everything up nicely so things don't stick too much -- hopefully that's enough. Coating is a bit outside my budget :P. My fastener addiction is only going to get worse. The Haas can rigid tap haha. Thanks for commenting!
I started building a machine like this after watching all the microplast videos. I gave up after testing my auger with a hand drill and watching the plastic just spin in circles. It didn’t really inject and certainly not with any pressure to fill a mold. I’m really curious to see if you can get plastic to squirt out the nozzle. All the rest can be figured out
Dont give up. Go to robotdigg.com and get a real plastic screw and barrel. High tolerance screw/ barrel fit. Plastic screw will make all of the difference in your success
It's just the screw - it's not backdriveable, so it will at least stay nominally closed, but we'll have to see how it performs. A separate lock is a good idea.
@@TabletopMachineShop A toggle lock mechanism will increase your clamping force A LOT. While at the same time keep the travel speed up in the rest of the travel for opening the mold big enough. And you can still use the screw to drive the toggle lock mechanism. It is a simple but still very capable solution.
Starting projects is definitely the easiest part... now where did I leave off on those other 50 projects 🤔 Congrats on the new position, and good to hear you are on the mend after that fall.
@@TabletopMachineShop I blame analysis paralysis. I run out of time/stuff to finish in a day then get caught up in analyzing what to do next or how to do it. That or something else takes priority and the project gets put on hold until it becomes important enough to complete. The excitement of starting a new project is probably more powerful than the sense of accomplishment from completing a project.
Yeah I did that for 4th axis on a mill, but the lathe has no C axis, so it really needs a Z-X series of commands which I couldn't figure out. Maybe it's a hand coding job.
these IM machines can be a simple or as complex/fancy as you wanna make it.. Have you considered using a nozzle valve like the APSX guys? and... I don't think your baby will have too much injection pressure if it's screw-based purely...?
What about Phenolic/bakelite for the heat break gasket area? It's used for that purpose on intake manifolds in performance automotive applications to limit heat soak.
Can you use the same motor for the extruder and the mold? ie both Nema 34 or Nema 23. Why did you use different motor? Because the design influence you took both are using same motor if I'm correct?
Yeah someone else suggested that. I'll look into it. I've heard of them, hopefully they make really small ones. A band heater would take up a lot less space.
Can you get enough injection pressure using only the rotation of the screw? I think most machines use the screw for melting the plastic evenly and then the injection pressure is created by pushing the screw into the barrel.
That's the couple-hundred-dollar question right now. I've seen some micro machines use just the screw, so I'm banking on it being okay for low pressure molds. I'm also working on a plunger-style design just in case.
I also have a problem finishing projects. A bit of ADD for both of us perhaps? So many ideas, and so little time to develop them. Not enough machinery to built them with. Sigh! So design the machinery and build them first. I get to the point that most of my time is spent designing and building machinery to build machinery... that’s in between doing it for others. I thought retirement meant I could take it easier. Never promise people who ask you to do something that; “When I’m retired...”
I have also had my eye on Andrey Korotkov's machines for a diy build. It appears to inject only with the back pressure that would be produced with the screw and not have any kind of ram or ball screw for the shot. Any idea if this is the case or what would be the pitfalls of such a system?
Hi, I see you have some 3D models of your machine. this is exactly the sort of machine we want to build and was interested in your results, Is your machine working well have you possibly had a production run on your machine and would you be willing to share your models with us? very impressed with your work. Thanks Jeremy (South Africa)
Hi, you are doing a great job man, great channel you have, very informative. actually i am a student and my project is fabrication of table top injection molding machine. Can you please tell me what kind of stepper motors (model number) did you use in this project and also any recommendation of cheaper stepper motor models that can be used for clamping and extrusion. it would be a great help
Have you thought of using air-crete to machine your hot parts from? Looking into the thermal resistance and ease of machinability very cheap to make too.
I've been dreaming of making one of these machines for ages, my big bottleneck is finding the right screw for the task... will you make those available when finished? or maybe you have any advice on finding them for that size? all I've ever found is for bigger machines and hate the idea of using a drill bit for that ...(auger) thanks for the nice project, I'll eagerly follow it and buy the plans if ever available!
Thanks! I'm a bit worried about the screw as well, but hopefully I can figure something out in the short term for the follow up video. One thing I'm considering is getting it 3D printed in metal and then just polishing it up, in which case I could definitely make the files available.
You who may. It is possible that you manufacture one or more machines that I am watching the video of, just tell me where I can contact you so that you can send us a quote for them. Thank you. Gustav.
I am have the same problem, maybe I should start a business specialized in storing projects called "start and store". Btw, great work. To save on border taxes, brokar fees, duties, etc, use the country post services, like USPS, from the US, china post from ....
Are you sure your injection screw is long enough? It's pretty short and the heating element is awfully close to the hopper entry point. I'm afraid you are going to be having heat creep into the hopper connection and melt occuring there. In which case you'd have a clogging problem.
Are you callin' my injection screw short? I'm planning on connecting the hopper with some kind of heat insulating or actively cooled widget to prevent that. You're right though, the heat will spread quickly and the plastic doesn't have much time to melt. A longer screw is under consideration :P
hello! excellent work! can you help us to make one like it only l need the dimension of parts for this machine?, can you tell us how much it cost you to make it?... can you make a DIY? thanks for your answer! greetings from egypt
@Tabletop Machine Shop, Are there plans available for this machine? I run a makerspace for afterschool kids and this is something they would LOVE to make and assemble!
The only time I had a major design revision was when I tried to make a rubegoldberg with an archamedies screw. F@(k that. Now making that type of thing is on the excuse to buy a cnc list.
olá , sou brasileiro ...e tenho uma variedade de peças que queria fazer em uma maquina como esta... como faço pra adquirir uma dessa.....está disponivel para vendar?
Each brand of lathe has it's own way of syncing spindle rotation with live tools. Forget about threading operations to program that, it will never work. It can be programmed as a milled feature on the lathe or on a mill with a 4th axis rotary indexer. If your guys are new at programming live tooling on the lathe the may have an easier time programming it on a mill.
Yes, on a mill with rotary axis it is really easy to program in G-Code. For the tapered part it is like "G1 X-100 Z-5 A-3600" (move to X=-100mm Z=-5mm, rotate A 3600°)
I have a question I want to model on of these for fun, going into mechanical Engineering, and I'm wondering what flange bearing that us you're using for the screw. It looks custom but I wanted to ask if it was pre-made. I like the idea and design on would be interesting.
"I've got problems to finish old projects."
I can feel your pain bro. 👌
really nice channel, got a new subscriber.
Any upload like this one that can make me laugh in the face of adversity gets a thumbs up 👍🏻
Please keep your videos coming.
3d printers are great, but 5 axis CNC machines and injection moulding kicks-arse!!! 👌😂🤓
5:40 Nice reference to Titan.
Good to see you making nice things still!
BOOM! Thanks Pieter!
I like this project. Finish it as it would be super useful for the open source community
Holy crap you have all the skills. So impressive, just outstanding work.
Thanks Aaron!
Oh gosh, I always have a dozen projects in various completion states at any given moment in time. Nice work! I'm a nurse now but was at an engineering school research unit for many years. Vitamin D3 and Vitamin C for healing the bone and tissue trauma recovery.
Thanks! Another likeminded individual!
I’m surprised nobody has yet mentioned “I put a handle on it so I can take it to parties and stuff.” You are incredibly quotable, and it adds a nice touch to your very informative videos. Subscribed and waiting in anticipation...
Thanks!
Wow youtube is hiding You very well... just found this channel and I can't believe You have only 17k subscribers. Man You deserve a looot more.
Thanks! I guess I'll have to appear in a bikini in more thumbnails haha
Alright thank you the dog seems good after the accident, thank you for the share, remembering our first trip to have made our injection molded case for our piezo buzzer detection unit many years ago now.
You get that arm better, never broke anything but hear it hurts.
Lance & Patrick.
Thanks guys! My arm is better now. They took the cast off after 1 week because apparently that makes it heal faster It really did, but everything hurt like hell for awhile so it slowed me down!
please confirm Price
Man! Your projekts are AWESOME, I think you deserve more prominence.
Thanks!
A ROCK SLICER !!
THERES A CRAZY NEW/OLD IDEA.
50,000 AMATEUR JEWELLERS WOULD APPROVE !!
I have way too many projects to finish before I start any new ones :P
I worked on an injection molding machine and the plastic was melted over 4 different elements and in a longer nozzle and screw and all the elements were independently temperature controlled. It was hydraulically controlled and the molds went up and down with no guide bars in the way of operating it. On that machine was no need for a hopper but there was a motor to suck up the plastic from the bag it came in. The molds had an option for cooling going through them "just a garden hose" and you needed to use both hands to start it for safety. And the plastic was preheated in the nozzle before melting.
Hmm very interesting. I'm going to refine the design with a longer screw I think. Sadly I think I'm stuck with electric actuation and a hopper though. I wonder if I could implement cooling...
It seems that this project is almost dead after so long. The first thing you need to consider is that the entire process is a heat pump. Heat in equals heat out. Once the barrel heaters have melted the material, the dynamic action of the screw converts the mechanical energy into thermal energy. It appears that your home made screw has no compression zone at the tip. At that point, if you have insulation, the barrel heaters should by running a duty cycle around 30% with the machine cycling. You need a mould temperature controller, firstly to bring the mould up to the correct operating temperature, then to remove the process heat which will allow the moulded part to reach its safe demoulding temperature. The injection unit needs lots of power, your small parts should be filling in less than a second. Then you need to switch your filling unit to a packing phase, which will maintain a constant pressure while the moulding cools, contracts, and shrinks. I recommend the Arburg reference book as a primer, I have used that over the years teaching the subject. good luck
I'm glad I found this video and that I can support awesome ideas like this. Keep up the great work. Look forward to more videos on this.
Thanks a lot Ryan!
Rock crusher 2.0 with all the new things you've learned, yes please!
Add it to the list!
Just binge watched all your videos fabulous stuff. Dont stop.
Good luck with your upcoming surgery. I've had keratoconus for going on 40 years. Not any of my business, but I was advised that laser surgery wasn't recommended since it thins out the cornea. Btw, I wear Scleral Lenses, they really have helped my keratoconus.
Thanks for the heads up. The surgery is a new one I guess, they said it previously couldn't be treated with lasers. Nice to know about scleral lenses, I may still have to get those
Cool! I saw the same bench top injection molder video you saw. Was mesmerizing.
Whenever I trip and start a new project, they most definitely do not turn out as good as yours! Cheers!
"Turn out" kind of implies they get finished :P. Ah well, this one will! Thanks for watching!
Looks like a awesome design. I got the controller figured out... 3D printer setup Marlin and RAMPS board... with the LCD controller like 40 bucks total. I use Gcode to program it. Still unfinished as have issues with molds, and ejection pins. Also the compression molder and hydraulic log splitter injection molder have taken up time
I like the HAAS "Boom" tribute to Titan Of CNC ;)
Great project, I saw the same video for desktop injection moulding inpsired me for same idea as I have projects in mind
A captive linear stepper motor, well done :-)
One thing you may want to do is make the mold holding plates similar to a fixture plate for a cnc mill one example sauders machine works fixture plates and use clamps similar to a cnc mill at my work we have injection molding machines with this kind of setup for holding the two half of the mold so all you do is lineup the injection port and clamp it down
Sounds about like me lol. "I tripped fell and started a new project"
Hey, This is a very cool project. Waiting for the next part :-)
to ptoduce a tapered thread on a manual lathe you use the taper attachment with the screw cutting gearbox to make your auger cut a tapered thread and machine off the od to a cylinder.
I was going to say - I'd have no problem making this on a manual lathe. The coding might be difficult, so I second Elanman on having one of the machinists cut this on a manual lathe ^^
I do agree the easiest way is to get someone else to do it on a manual lathe but I meant to say that it is possible to define a tapered threading opperation on your machining centre I think it is G76 with parameter i to define the taper. then reduce the OD to a cylinder.
Plot twist: I don't have a taper attachment, though the winning plan so far is to use the threading gearbox and just "wing" the taper. I think it will be okay with the right grind
Looks like a proper build. I know the feeling with projects. I have two right now that are at 90% but just can't seem to make it across the finish line.
Damn that elusive finish line... I don't cross it much either haha
I thought I am the only one with this problem
Curious that we share the same interests and now he have the same job.
Single drive extruders can have a tendency to just spin the mixture and not extrude anything. However, they are commonly used. I imagine surface finish be key. You may need to have the screw PTFE (or something that can handle the heat better) coated so that the mix doesn’t stick to it.
Also there are only four screws holding in that extruder. Either a piece of arm bone broke off and made it to your brain, or you’ve slowly come to terms with your fastener addiction...
P.S finish the mini lathe or I’ll leave comments with empty threats.
You actually want the mixture to stick to the screw! It's the barrel wall that you want it to slip at. This is why you typically have to cool the screw if you're running The heaters for a long time.
Eaton Asher Really? That’s so counter intuitive..!
Empty threats? You wouldn't dare! I'm going to try to polish everything up nicely so things don't stick too much -- hopefully that's enough. Coating is a bit outside my budget :P. My fastener addiction is only going to get worse. The Haas can rigid tap haha. Thanks for commenting!
About 95% of my projects are abandoned at about 90% completion lol.
Looks good, I keep checking back for the update video
Thanks so much
Ха ха ха , я думал что только я начинаю проэкты и не заканчиваю их ))).
I started building a machine like this after watching all the microplast videos. I gave up after testing my auger with a hand drill and watching the plastic just spin in circles. It didn’t really inject and certainly not with any pressure to fill a mold. I’m really curious to see if you can get plastic to squirt out the nozzle. All the rest can be figured out
Dont give up. Go to robotdigg.com and get a real plastic screw and barrel. High tolerance screw/ barrel fit. Plastic screw will make all of the difference in your success
You could make a melamine gasket, it’s a very bad heat conductor and rather durable :) awesome video!
Is the clamping mechanism just a screw? Or are you adding some sort of toggle lock mechanism?
It's just the screw - it's not backdriveable, so it will at least stay nominally closed, but we'll have to see how it performs. A separate lock is a good idea.
@@TabletopMachineShop A toggle lock mechanism will increase your clamping force A LOT. While at the same time keep the travel speed up in the rest of the travel for opening the mold big enough. And you can still use the screw to drive the toggle lock mechanism.
It is a simple but still very capable solution.
Wankel Motor can you elaborate on this idea?
Looking forward to seeing old projects finished.
Thanks for sharing this one, very cool!
Starting projects is definitely the easiest part... now where did I leave off on those other 50 projects 🤔
Congrats on the new position, and good to hear you are on the mend after that fall.
Hey thanks! I wonder why that is.... The excitement of starting before reality sets in I guess haha
@@TabletopMachineShop I blame analysis paralysis. I run out of time/stuff to finish in a day then get caught up in analyzing what to do next or how to do it. That or something else takes priority and the project gets put on hold until it becomes important enough to complete.
The excitement of starting a new project is probably more powerful than the sense of accomplishment from completing a project.
“New subscriber”😂 solely because you designed a Cast-cooler!! 😂😂😂🤓🤜🏼🤛🏼🍀🇦🇺
I'm not sure if it works for lathes too but you can "Rotary Wrap Toolpath"
Yeah I did that for 4th axis on a mill, but the lathe has no C axis, so it really needs a Z-X series of commands which I couldn't figure out. Maybe it's a hand coding job.
@@TabletopMachineShop are you wanting to make a variable pitch screw? Or just a single pitch, flat-tapered-flat screw?
The second one!
5:38 Had me dying! Someone watches "Titans of cnc" :)
This is awesome! I wanted to make something like this :) Or I should say I will make something like this, just need more tools
Thanks! More tools is always good :P
these IM machines can be a simple or as complex/fancy as you wanna make it.. Have you considered using a nozzle valve like the APSX guys? and... I don't think your baby will have too much injection pressure if it's screw-based purely...?
What about Phenolic/bakelite for the heat break gasket area? It's used for that purpose on intake manifolds in performance automotive applications to limit heat soak.
That's a good idea! I was thinking about even using a dense wood, but phenolic would probably be better
Can you use the same motor for the extruder and the mold? ie both Nema 34 or Nema 23. Why did you use different motor? Because the design influence you took both are using same motor if I'm correct?
I want one! Great work.
Thanks!
Thanks so much brother..
No problem!
Good Stuff
i like this machine
You can buy heater designed for injection molding. Search "Steel Heating Element Band Heater " on ebay.
Yeah someone else suggested that. I'll look into it. I've heard of them, hopefully they make really small ones. A band heater would take up a lot less space.
I'm dying for the tool tool!
Can you get enough injection pressure using only the rotation of the screw? I think most machines use the screw for melting the plastic evenly and then the injection pressure is created by pushing the screw into the barrel.
That's the couple-hundred-dollar question right now. I've seen some micro machines use just the screw, so I'm banking on it being okay for low pressure molds. I'm also working on a plunger-style design just in case.
3:45 most guys are *also* extractable from the rear. Nice little machine
Thanks!
I also have a problem finishing projects. A bit of ADD for both of us perhaps?
So many ideas, and so little time to develop them. Not enough machinery to built them with. Sigh! So design the machinery and build them first. I get to the point that most of my time is spent designing and building machinery to build machinery... that’s in between doing it for others. I thought retirement meant I could take it easier.
Never promise people who ask you to do something that; “When I’m retired...”
Woah woah woah.... so you mean I won't even finish projects in retirement? That's when I was putting most of them off to!
Hello Friend! Good work, really want to collect the same! There is Part 2, etc. or am I missing something)?
Amazing little project and very well designed too. Question, the braided cable hovering dangerously close to the SSR is insulated isn't it?
Impressive sir
Thanks!
I have also had my eye on Andrey Korotkov's machines for a diy build. It appears to inject only with the back pressure that would be produced with the screw and not have any kind of ram or ball screw for the shot. Any idea if this is the case or what would be the pitfalls of such a system?
Hi, I see you have some 3D models of your machine. this is exactly the sort of machine we want to build and was interested in your results, Is your machine working well have you possibly had a production run on your machine and would you be willing to share your models with us? very impressed with your work.
Thanks
Jeremy (South Africa)
Hi, you are doing a great job man, great channel you have, very informative. actually i am a student and my project is fabrication of table top injection molding machine. Can you please tell me what kind of stepper motors (model number) did you use in this project and also any recommendation of cheaper stepper motor models that can be used for clamping and extrusion. it would be a great help
Have you thought of using air-crete to machine your hot parts from? Looking into the thermal resistance and ease of machinability very cheap to make too.
No I havent, I'll investigate!
Is this project still going for part 3? Looking forward for this!!!
Still going! I hit a hiccup but I'm past it now!
awesome project
Thanks Tommy!
I’d be keen to see how Resin 3d prints with engineering grade resins designed for injection moulding fair with this setup. 🤜🏼🤛🏼😎🍀🍀🍀
I've been dreaming of making one of these machines for ages, my big bottleneck is finding the right screw for the task... will you make those available when finished? or maybe you have any advice on finding them for that size? all I've ever found is for bigger machines and hate the idea of using a drill bit for that ...(auger) thanks for the nice project, I'll eagerly follow it and buy the plans if ever available!
Thanks! I'm a bit worried about the screw as well, but hopefully I can figure something out in the short term for the follow up video. One thing I'm considering is getting it 3D printed in metal and then just polishing it up, in which case I could definitely make the files available.
@@TabletopMachineShop that would be absolutelly wonderfull! A kit sounds good too ;O)
Looks like a great design. Great work. I would like to know where you got the extruder from please? Is it an FDM type extruder? Thanks.
You who may.
It is possible that you manufacture one or more machines that I am watching the video of, just tell me where I can contact you so that you can send us a quote for them.
Thank you.
Gustav.
Great video! What size shot will it be capable of when completed?
I'm actually not sure :P
Good for you for the promotion,
Thanks!
I know a guy that worked Cincinnati millicron
Building injection beer ball and bottle machines
"I have problems finishing old projects", I'm a life time expert at not finishing old projects, feel free to ask my advise.
The biggest problem is where to store stuff :P
I am have the same problem, maybe I should start a business specialized in storing projects called "start and store". Btw, great work. To save on border taxes, brokar fees, duties, etc, use the country post services, like USPS, from the US, china post from ....
Are you sure your injection screw is long enough? It's pretty short and the heating element is awfully close to the hopper entry point. I'm afraid you are going to be having heat creep into the hopper connection and melt occuring there. In which case you'd have a clogging problem.
Are you callin' my injection screw short? I'm planning on connecting the hopper with some kind of heat insulating or actively cooled widget to prevent that. You're right though, the heat will spread quickly and the plastic doesn't have much time to melt. A longer screw is under consideration :P
hello! excellent work! can you help us to make one like it only l need the dimension of parts for this machine?, can you tell us how much it cost you to make it?... can you make a DIY? thanks for your answer! greetings from egypt
All moulding machines have the injection on the right and the clamping on the right.
@Tabletop Machine Shop, Are there plans available for this machine? I run a makerspace for afterschool kids and this is something they would LOVE to make and assemble!
Thats cute i run 500 ton van dorns at work
good
The only time I had a major design revision was when I tried to make a rubegoldberg with an archamedies screw. F@(k that. Now making that type of thing is on the excuse to buy a cnc list.
Is this machine working. Can you please share any working video
For the threading with live tool, try writing the code manually. It's not that much code.
hi was just wondering what step motors are you after using there
LOOOVE THIS!
Thanks!
Hi, or any of these parts and more specifically plastic feed screw is available for purchase online ?
super votre videos instructive bravo
Merci!
how much will it cost you to finish the machine. hope you have done it.
Look forward to it being done. Will you be selling these I would need something like this.
Maybe some day :P
olá , sou brasileiro ...e tenho uma variedade de peças que queria fazer em uma maquina como esta... como faço pra adquirir uma dessa.....está disponivel para vendar?
hello sir can we use steel barrel and screw
AvE just did a cool video on a gopro spinny lens for filming under coolant.
Ya I saw that... It's certainly something I'm going to think about doing, perhaps an electric version
All in all it is a very cool project. However a long way from a finished product.
Very true. I have no plans to sell this machine, if I did I'd have a lot of work to do... Probs an entire new iteration
Each brand of lathe has it's own way of syncing spindle rotation with live tools. Forget about threading operations to program that, it will never work. It can be programmed as a milled feature on the lathe or on a mill with a 4th axis rotary indexer. If your guys are new at programming live tooling on the lathe the may have an easier time programming it on a mill.
Yes, on a mill with rotary axis it is really easy to program in G-Code.
For the tapered part it is like "G1 X-100 Z-5 A-3600" (move to X=-100mm Z=-5mm, rotate A 3600°)
Is there a reason that you chose a heater cartridge instead of a band heater?
I just had cartridge heaters already. I might use band heaters for the barrel eventually
I have a question I want to model on of these for fun, going into mechanical Engineering, and I'm wondering what flange bearing that us you're using for the screw. It looks custom but I wanted to ask if it was pre-made. I like the idea and design on would be interesting.
Hi Samuel, It's two standard tapered roller bearings inside of a custom flanged mount
@@TabletopMachineShop
Ah, pressed fitted. Thanks for the info on that.
Hello, I'm with a mini injection project, but I do not have much experience. Could you help me? I'm from Brazil. How can we get in touch?
Hi Nicolas,
I replied to you on Patreon!
Excelente,meus parabéns
Hi. Good Machine . I want to do it too. Can you help me about the control unit?
What engine do you use? I'm working on this device
Nice setup! Check out mica band heaters.
Thanks, will do!
Or if you have a drawings? What is the cost of them?
Consider a stripper plate vs. Ejection pins !!
I shall investigate!
Depends on the part.
Clamping on the left