@dc42 I vote get rid of them. Would much rather have more modern features on my production printers than a shorter path to an odd kinematic play toy printer.

https://www.printables.com/model/565908-screw-extruder

I put my old screw extruder design I had been working on a few years ago and an updated design made for a stepper motor that Ive been working on lately. Im gonna start working on it again, let me know what you guys think. def not as light weight as the VDE100, but was orginally intended to go on a smart effector on my Anycubic Predators. Also at one time I considered remote direct drive as the screw extruder is low torque high rpm and the zesty nimble and such were en vogue at the time.

Been playing around this week in cad. 8mm roller would have to be made on a lathe. 683 bearings. Would make a 2mm lead 2 start thread on the filament. https://www.printables.com/model/573540-extruder-8mm-quick-release

@tylersuard closed loop steppers. The newer ones from mks work great. Everyone will tell you here to fix the printing problem first, which is fine on a 20 hour print. I print 100+ hours quite often on big machines, fixing the printing problem only goes so far. Id much rather have a completed print with a small blemish, that is still usable.

@itslikeboo I love this project. Hope to do something similar on one of my anycubic predators except with two smart effectors. Keep up the good work.

@tkln nonlinear printing?

@cncmodeller most resin printers are the same. Almost all use chitu brand controls. Def get a mono screen or one of the newer dlp printers, mono prints much much faster. Suggest getting two tanks for which ever wash station you decide. Dirty tank and a cleanish tank. Remember once the ipa gets cloudy you can pour it into a glass jar and set it out in the sun. The resin will coagulate and can be filtered out through a coffee filter to be reused. I usually add some fresh in also. Cheers.

@tkln very interesting. Think this could be the future if they ever get a good slicer.

@zruncho would love to see the printer and what belt routings you went with.

@dad003 200c on petg? That's pretty low. I usually print around 230 on a bed slinger and 245-250 on a delta.

@jay_s_uk That's what I was thinking too. Regular duet tool board is prob the same.

I was wondering about putting a few of these in a heated chamber. Any info on maximum chamber temp before it starts having issues? i dont see any max temp specs on github or on aliexpress page. Im wanting to run between 80C-100C.

updated on printables

@o_lampe I didn't consider the filament path being a spot where it might flex, that's a good point. The non canted bearings in the door, I considered trying to find a way of adding a 20 degree angle, but then I got to thinking that would decrease the length that the filament is backed and pushed firmly into the groved roller. That length is already limited by the angle of the grooved roller. The shaft for the roller I was intending to be 3mm carbon rod. The bolt and spring for the door is offset because the outer frame is actually 2 pieces so the roller assembly can be inserted. I have a couple different designs I'm playing with in cad and have ordered some sls parts to mess with. Waiting currently on shoulder bolts from China, apparently the boat must be stuck in a canal somewhere. As far as balancing I could prob get it close by calculating up the individual pieces with their specifical gravity and get close. I don't know if I'll try and make this, I might, just figured I'd throw it out for people to think about.

Been playing around this week in cad. 8mm roller would have to be made on a lathe. 683 bearings. Would make a 2mm lead 2 start thread on the filament. https://www.printables.com/model/573540-extruder-8mm-quick-release

@oliof yep that could be. Didn't think of that.

@mrehorstdmd That's interesting. I wonder where the 1.75mm came from? I'm assuming 3mm was plastic welding wire originally.

@o_lampe That little nema8 is neat. What's that weigh?

@tombrazier that 1.55 mm of lead is interesting. Should be more like 1.91mm. I wonder why? Are you finding that your thread pitch on the filament is staying consistent with varied speeds and loads?

Does anyone still print with 3mm filament? Why? Why not? Seems to me like the VDE100 would be a little easier to make if the parts were a little bigger. It would potentially take longer to melt I guess but it seems as if hotend tech has outstripped extruder and cooling techniques at this point.