2020 i3 Y Axis Cable Chain and Anchors V2

by mel0n, published

2020 i3 Y Axis Cable Chain and Anchors V2 by mel0n Jul 11, 2015


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Cable chain for 2020 Aluminum variants of the Prusa i3. I made this for my Folger Tech 2020 Prusa i3. I used ABS because the aluminum bed gets pretty hot during long ABS prints. If you only use PLA or no Heated bed, PLA is probably fine.

See instructions for printing frame mount.

I have revised the design a couple of times and finally have it in what I believe is the best configuration. Obviously printing a new belt mount for the Y axis belt would be best, but I didnt feel like completely taking apart my Y axis again.

The chain was confined to too small of an area and would occasionally snag on the bearing holders on the right side. So I made an offset mount , as well as the same offset + 6mm more.

The +6mm offset link goes under the bed, and the other offset goes on the frame mount. I alsmo moved my frame mount outside of the Y rods. So with the added offset the chain now clears the bearings completely and there is no more snagging and breaking links. Enjoy!


To print the frame mount, rotate it so that the clips for the chain are facing straight up. So the edge of the part touching the bed forms an L. I also printed it with a brim in ABS.

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This looks great, and I would love to use it on my custom build. Any way you could help me incorporate the belt holder into this Y belt holder?

Thanks! :)

i3 Non-Adjustable Y Holder for GT2 & T2.5

The offset +6mm file is missing! Am I understanding correctly that this design needs both the original and the +6mm offsets in order to clear? How many chain links did you need?

To cool on my pursa I3 Dual extuder my Y axis chain is vertical on the rear left so it extends a little past the back. I like your design much better since everything is contain below the the bed and inside the frame. I will redesign my cable chain ends to account for your design. Thank's

Robert KB3LNN