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CubeX Duo Conversion - Will it Work?
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- เผยแพร่เมื่อ 19 ต.ค. 2020
- Does anyone remember the CubeX Duo 3D Printer? I decided to take the printer, strip it down, and use updated components. Will it work?
#cubex #3dprinting
I'm working on BFB 3DTouch conversion, I don't know about CubeX, but in 3DTouch the frame is attached to the outer case made from thick acrylic, and this is really necessary to make it stable. When I started to do test prints I had similar issues to yours because I had removed the outer case, and this reduces diagonal rigidity too much. Your idea with the struts is in the right direction, but maybe it's not enough due to how they work in your case. I have attached two L-shape aluminium profiles diagonally to the frame corners (using the case mounting points) and now I can get decent quality prints with consistent layer thickness and minimal ghosting.
Vibrations are not too big of a deal if the whole structure is vibrating without deforming.
I have not documented my build yet, I'm using a E3D V6 clone too, had so get a new extruder (Orbital v2) because the original on 3DTouch is an awful design.
it also doesn't help that it looks like someone did their own engineering on your bed levelers. OEM (on mine) has a nut that locks the bed height in place. Yours looks like it has springs. Here's a test - print a calibration cube at the back edgeof the bed, then print another at the front edge. If the front one is worse it's either the springs on the bed leveler or acceleration settings - maybe both.
Corner to opposite corner braces, made from steel, mounted from the outside of the printer. Start with left and right side. If that helps, great. I would also do the rear as well. Some drilling and threading will be needed on the printer to mount the braces.
I haven't made any modifications in quite some time, but I am considering adding braces, similar to what you are suggesting. Almost an exoskeleton around the printer. One of these days...
I got one too recently. I noticed the vibrations to. I can move the bed by twisting the frame with little force. I think it needs good diagonal support. Maybe the case would give that diagonal support?
it really needs the acrylic shell (or a surrogate) to stiffen the chassis properly. Linear Motion and Chassis really should not be the same material, but they were a fairly solid machine (mostly due to the ridiculously chonky linear rods and steel unions. Other than the acrylic lead screw attachment point on the bed carriage they are still a very solid base to frankenstein from. I have one I'm in the process of rebuilding into an enclosed/heated dedicated ABS/ASA machine with. Multiple Dragon Nozzles for Standard and High flow of the same filament. High layer density infill experiments hopefully soon to follow
I am working on the same conversion and I noticed the build plate would shake if the Z-axis moves up/down too fast. There is no way to know how much it was set in the CubeX firmware, but I have it set 5 mm/s in Marlin, and it did help a lot.
Thanks for the tip. I'll try it...
Can you make a thingiverse and upload the STL files of the modifications that you made to the printer ? I have a CubeX too and i don't know much of 3D modeling to make the pieces myself.
Any updates on this retromod?
Sorry Rob, I haven't had the time to spend on it lately. I have been working on a CNC conversion on a mill. I will post an update soon (hopefully).
I've been working on converting a duo for the last month or so. Most of the vibration can be dampened with acceleration settings in Marlin. I don't have mine dialed in yet, otherwise I'd share settings. As for the rigidity of the frame, removing the case will be your downfall. A friend helped me set up a jig to measure how much the frame twists. No case, 20lb force on top front right corner, almost 4mm deflection. Put the case back on less than 0.5mm deflection.
interesting...I haven't worked on it for a long time. I have been working on a CNC mill conversion. I do plan on trying different structural members to reduce the vibration. Let me know what settings you use to reduce the vibration.