Hello, I am a Polyjet technician. I've been following your project with interest for a few videos. In the Polyjet machines, the ink is not circulated but held in the head by a vacuum. Do you heat your print head? The viscosity of the material can be better controlled with heating.
Back in 2015 I was workin for a big oil company running a Fortus 900, which afforded me a tour of the local Stratasys cave. They has a ObJet running multi-materials with flexible, magnetic, conductive, transparent, and dissolvable like you'd run CMYK on your desktop inkjet. Alas, it was Stratasys so few developers wanted to develop the tech into affordable or more useful formats. It's good to see someone reprap-ing one up. Just, be careful with "PolyJet", I think Stratasys still owns the name. Can't wait to see how far you can develop this one! Your prints are lookin great!
Before posting this video, I was also thinking about the name. Should I use the name of the inkjet 3D printer or polyjet? Finally, I decided to use polyjet to borrow its influence to get more views.🤣
@@weirdtechresearch No worries 😄 most people understand how much it helps the creator, besides, they can always skip it if they want to! I’d ignore anyone who complains about it. All the best!
@@weirdtechresearch How are the droplets created? Does the printhead evaporate ink or create them electrostatically somehow? I'm also interested in buying your kit. I would need to undestand better what it can and cannot print, though.
Basically, I have simplified the operation of the printhead into 3 klipper gcode commands, load config, load print data, jet, through these 3 gcodes, you can control the printhead
Your name made me curious, so I clicked in to take a look. Sure enough, you also make videos😂. Your method of making movable toys with plastic ties is very interesting.
@@weirdtechresearch Thank you for checking out my channel. So now you have an idea how important your work is to the stuff that I do. I have always wanted to have an Objet/ Polyjet 3D printer. Your innovation gives me hope! maybe the next innovation is to add a CMYK CISS tank, for a multi-colored polyjet system. And an extra tank for a water/ soluble resin for support material.
Yeah... Actually, I started this project just to print colored figures. It seems like you are very good at designing action figures. Maybe we can work together later.
@@weirdtechresearch Maybe a simple candle wax could work, or microcrystalline wax. Doesn’t need to be light curable as long as the photopolymer for the object printing doesn’t melt it. Then it can be melted later in hot water to release the part. Needs a separate print head for the wax, of course. Thanks for your effort, man, really good stuff!
@@weirdtechresearch The Stratasys Polyjet machines print a small grid sctructure with model material into their support material, to improve structural integrity
@@simontillson482 Yeah, separate print head with wax would be great. As support doesn't need much of precision - its print head could have big diameter nozzles to don't get clogged by wax. In more complicated setup, gelatine can be used with some kind of freezing plate (support print head heated to keep gelatine liquid and peltier modules under bed to cool down and harden it fast enough). Alternatively, the printer could have just idex setup with additional ordinary 3d printer hotend to print support with a soluble plastic (PVA, HIPS) though it will increase printing time quite a much if there is a lot of support.
It's extremely unlikely that your logic analyzer is showing the actual signals and not the digital interpretation of those signals. What I'm saying here is that your zero values on those lines could easily be ghosting up to just shy of logic level one and you would never know it looking at the logic analyzer. Better method would be to use a known transitioning signal to trigger your DSO which you would put on the non transitioning adjacent trace and set it to show some amount of "pre-trigger" signal.
You are right. It is not a rigorous approach to use a logic analyzer to detect crosstalk. It is just that the crosstalk of my previous board was serious enough to be detected by a logic analyzer😅. You seem to be a professional electronic designer. Thank you for pointing out my mistake.
You are right. It is not a rigorous approach to use a logic analyzer to detect crosstalk. It is just that the crosstalk of my previous board was serious enough to be detected by a logic analyzer. You seem to be a professional electronic designer. Thank you for pointing out my mistake.
@@weirdtechresearch i figured it was doing the trick for your needs. Not an electronics designer, failure analysis, so I'm really good at knowing when equipment is lying to me. Very cool printer though!
Hello sir, I was wondering you would be willing to discuss some things in private. I am an engineering student that might have some resources that could interest you for further development.
Hello, I am a Polyjet technician.
I've been following your project with interest for a few videos.
In the Polyjet machines, the ink is not circulated but held in the head by a vacuum.
Do you heat your print head? The viscosity of the material can be better controlled with heating.
I use a ptc to heat the ink cartridge above. The xaar printhead doesn't seem to be able to be heated directly, so I did this.
@@weirdtechresearch If you circulate the heated resin, this may also work. The original print heads are equipped with heating elements.
Are you also a polyjet developer?
Back in 2015 I was workin for a big oil company running a Fortus 900, which afforded me a tour of the local Stratasys cave. They has a ObJet running multi-materials with flexible, magnetic, conductive, transparent, and dissolvable like you'd run CMYK on your desktop inkjet. Alas, it was Stratasys so few developers wanted to develop the tech into affordable or more useful formats. It's good to see someone reprap-ing one up. Just, be careful with "PolyJet", I think Stratasys still owns the name.
Can't wait to see how far you can develop this one! Your prints are lookin great!
Before posting this video, I was also thinking about the name. Should I use the name of the inkjet 3D printer or polyjet? Finally, I decided to use polyjet to borrow its influence to get more views.🤣
@@weirdtechresearch True. Ppl know what it is so it's more descriptive than "Multi Material Jet Depositing"
Wow, great improvment! I've been following you for a few months, i'm happy that someone created a opensourceish polyjet printer!
This looks a lot nicer than your first attempts! Looking forward to seeing what you can come up with next.
Great update! Congrats on the partnership too! I'm quite excited to see the future progress :D Cheers!
Thank you! This is my first time adding an ad, and I was a little worried that the audience would be disgusted. You are such a nice person.,😂
@@weirdtechresearch No worries 😄 most people understand how much it helps the creator, besides, they can always skip it if they want to! I’d ignore anyone who complains about it. All the best!
You worked it in well and didn’t make it really long.
@ 4:37 I haven't seen Lena in a long time! I can't believe after decades, we still use this as a base. :) But gotta get that hue color just right.
It's really interesting that a model would become so famous in the field of computer science
Great results. I'm happy for you.❤
I'm glad you're enjoying it! 😁
Its been in my idea for almost 3 years but I've always hesitated to begin. Good job
I use PrusaSlicer for my DIY mSLA printer. Will move to Kirimoto eventually.
It's very cool, you're great. Now I wonder if this printer will be able to print something more complex
Polyjet is a very high res process. Nice.
IF YOU CREATED A PLUG AND PLAY KIT I WOULD BUY IT.
I will try😘
@@weirdtechresearch what are the requirements for ink formulations? Do they only have to be photo-polymerizable, or is there something else?
I think the most important thing is the viscosity of the material, followed by shrinkage and curing speed.
@@weirdtechresearch How are the droplets created? Does the printhead evaporate ink or create them electrostatically somehow?
I'm also interested in buying your kit. I would need to undestand better what it can and cannot print, though.
Basically, I have simplified the operation of the printhead into 3 klipper gcode commands, load config, load print data, jet, through these 3 gcodes, you can control the printhead
So impressive. Beautiful results.
This the type of tech I have been wanting! thank you for doing this.
Your name made me curious, so I clicked in to take a look. Sure enough, you also make videos😂. Your method of making movable toys with plastic ties is very interesting.
@@weirdtechresearch Thank you for checking out my channel. So now you have an idea how important your work is to the stuff that I do. I have always wanted to have an Objet/ Polyjet 3D printer. Your innovation gives me hope! maybe the next innovation is to add a CMYK CISS tank, for a multi-colored polyjet system. And an extra tank for a water/ soluble resin for support material.
Yeah... Actually, I started this project just to print colored figures. It seems like you are very good at designing action figures. Maybe we can work together later.
@@weirdtechresearch That sounds good! I am always open to collaborate. :)
Great project! Will it be open source?
I haven't decided yet, because I developed it based on klipper, so this code is open source
So awesome! Time for multi-material or multi-color?
Maybe lidar would help to regulate flow or make additional passes? Or even some laser + camera on some angle
😀It sounds complicated
Amazing work!! I wish there was a system for the much cheaper XP600 than the xaar printhead.
Love your project!
@4:07 Sooo .. we can't eat these?
;)
very cool
should try a lense next
You need a support material too. The polyjets used some kind of photopolymer wax
Yes, support material is also a challenge for me, I haven't solved this problem yet, maybe I can try using wax
@@weirdtechresearch Maybe a simple candle wax could work, or microcrystalline wax. Doesn’t need to be light curable as long as the photopolymer for the object printing doesn’t melt it. Then it can be melted later in hot water to release the part. Needs a separate print head for the wax, of course. Thanks for your effort, man, really good stuff!
@@weirdtechresearch The Stratasys Polyjet machines print a small grid sctructure with model material into their support material, to improve structural integrity
@@simontillson482 Yeah, separate print head with wax would be great. As support doesn't need much of precision - its print head could have big diameter nozzles to don't get clogged by wax. In more complicated setup, gelatine can be used with some kind of freezing plate (support print head heated to keep gelatine liquid and peltier modules under bed to cool down and harden it fast enough). Alternatively, the printer could have just idex setup with additional ordinary 3d printer hotend to print support with a soluble plastic (PVA, HIPS) though it will increase printing time quite a much if there is a lot of support.
That is a useful information!
What model is the printhead? How can you communicate with it?
I use the xaar 1002 print head, and convert the serial port signal into the nozzle drive signal through the circuit board mentioned in the video
Excellent work!
Very cool progress! Can you tell what kind of mixture the photoresin is? Is it by any chance TPGDA based?
It was indeed based on tpgda at the beginning, but later some changes were made for viscosity and shrinkage. Are you engaged in material development?
@weirdtechresearch I'm currently working on my master thesis about inkjet printing, I am also using a tpgda based material
Super interesting
Very impressive !
Amazing work❤❤❤❤❤
OK... that is pretty sick
Why?
@@weirdtechresearch”sick” means “awesome” in this context 😊
@@weirdtechresearch it's a compliment
@jasongooden917 I see, not a native English speaker😅
Awesome!
incredible!!!!
It's extremely unlikely that your logic analyzer is showing the actual signals and not the digital interpretation of those signals. What I'm saying here is that your zero values on those lines could easily be ghosting up to just shy of logic level one and you would never know it looking at the logic analyzer. Better method would be to use a known transitioning signal to trigger your DSO which you would put on the non transitioning adjacent trace and set it to show some amount of "pre-trigger" signal.
You are right. It is not a rigorous approach to use a logic analyzer to detect crosstalk. It is just that the crosstalk of my previous board was serious enough to be detected by a logic analyzer😅. You seem to be a professional electronic designer. Thank you for pointing out my mistake.
You are right. It is not a rigorous approach to use a logic analyzer to detect crosstalk. It is just that the crosstalk of my previous board was serious enough to be detected by a logic analyzer. You seem to be a professional electronic designer. Thank you for pointing out my mistake.
@@weirdtechresearch i figured it was doing the trick for your needs. Not an electronics designer, failure analysis, so I'm really good at knowing when equipment is lying to me. Very cool printer though!
The PCB is provided by...
Wait wait! which PCB?
You are getting close to a bioprinter
Do you mean RNA synthesis?
@@weirdtechresearch kinda like a printer that prints organs like kidneys. I can see 3d printed organs in the future
This guy insane
Mmm forbidden gummy
me: yummy...
4:03 - NO!
okay then.....
Epic!
Neat.
nice work looks like food lol
But taste bad,😂
Hello sir, I was wondering you would be willing to discuss some things in private. I am an engineering student that might have some resources that could interest you for further development.
How about discord? Here my channel: discord.gg/JNeNpPSq