Cable Chain and Mounts for K40 Laser

by DAcreates, published

Cable Chain and Mounts for K40 Laser by DAcreates Jan 17, 2016
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All the parts needed to create a cable change for the K40 Laser. Print 1 of everything and then as many cable chain links as you need for you chain.

This is remixed to improve the strength of the mount at the end of the Y carriage and to include all the parts as individual files.

I've included photos so you can see how to assemble it.

I printed PLA 3 shells and 30% in fill for the chain and 50% for the mounts.

Print Settings

Printer Brand:



Fisher XT








30 to 50%


I printed PLA 3 shells and 30% in fill for the chain and 50% for the mounts.

How I Designed This

Split the files using Simplify 3d and then used Tinkercad to add the extra wall supports I wanted.

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I bought a chain off of ebay and it was made by LO but I need the mounting hardware brackets screws well maybe I can source the screws where I am but will you print sell the mounting brackets?

Great design, I have already printed it.
I noticed that the part connecting to the L bracket is flipped (even in your images) to not move/flex.
Is this intentional? I was planning to change that piece in openscad, but just wanted to check with you first.

That was deliberate to give more support. It may not be needed. Please post remake if you redesign and it works.

Enlarged Cable Chain Laser End elongated and rotated

made this and its great except the additional weight s pulls down the right hand side of the laser carriage so it hits the right frame rather than just clearing.
did you have this problem , I have always thought the right side just floating was strange

I didn't have that problem. Can you post a photo?

What type of air tube do you find works best for the air assist hose?

I'm using some clear hose that came from a car parts place and it used for the windscreen wash. You can see it poking out of the chain in this thing - http://www.thingiverse.com/thing:2025176

K40 Laser Mesh Bed Mount

Ok, thank you.

Hi your chain is fine and works great. You have promised to send me 2 replacement chain links. Is this going to happen anytime soon?

Hi. I think you may have posted this in the wrong place. If you used a 3D printing service you should try and contact them directly.

Two of your STLs are identically named and leads to one of them being missing when you download the whole package.

Thanks - I have corrected the file name.

Hello! Can you insert blower air tube inside the chain? It is not jamming?

Yes I have my blower hose in the chain. I just added a close up photo showing my setup. So far its been fine. The air makes a big difference to the quality of cuts.

Ok. Thank you for photo and info. I will try after I fix my 3d printer. Best Regards!