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Ender 3 cable chains

by Vijit Mar 14, 2019
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Can I use the stock screw on the x-axis extruder to mount the cable chain? or do I need a longer screw to hold the printed piece down?

If you have an M3x12mm screw, it works perfectly on my Ender 3 Pro. I also wasn't to use my stock extruder screw for the mount.

I used the stock screw.

I can't manage to fit it through; the screw can't reach down into the hole, should I print at a reduced or increased size?

I don't remember how exactly I fixed this part (if I ever faced to it), sorry. But I'm pretty sure, I would use a knife, drill and other handy tools instead of printing the part in scale. Just as suggestion. Or just take a longer bolt.

I just reviewed my printed mount, I see there some scratches, so I definitely used the knife.

Hey Vijit, any chance you could share the source files for cableChain_link_v3.stl? Would like to try remixing :)

Well, it is not a completely my model. I only change it a little in Tinkercad. Here is my source. I'm not sure that would be useful.

Thank you for this. Printing everything up right now. I noticed you have some material between the compensators and the bed -- is this for protection from the heat? Do you find that printing them in PLA is ok?

This green material is a rubber - silicone cooking mate. I added it for protection of the heat threads themselves. Just in case, because my version has metal nuts inside the plastic. They can scratch the surface and make threads short circuit.

All gray parts printed in ABS. It can hold 110C of the table heating without gasket.

I think PLA can also be used. But when (if) you make a thermal box for the printer, maybe PLA will start melting in it. Only in theory, I didn't check. :) That's why I using ABS for all printer details.

Are you adding a compensator on all three other adjusters? Thanks!

I'm not, because I have a handle on the table front. But if you haven't, then obviously you need three compensators.

Thanks, I'm putting a handle up front as well. Appreciate the feedback, I'll post some pics once I have this installed.

With the hotend mount pushed to right, do your chains make contact with the right chassis when the hotend is all the way to right edge?

Only asking because my first design was on the right side and I had complaints about the chains making contact when printing on the right side of the printing during larger prints so I moved it into the middle as a compromise.

If moving hotend against the stop - yes, it bends the chain a little. But at that position the nozzle out of table. If set hotend at the edge the table - there enough space between the chain and the frame.

Nice. Well done! Good call on the compensator for the springs as well. ;)