brock Y-Axis Cable Chains for 30x40 CNC Laser Engraver

brock Y-Axis Cable Chains for 30x40 CNC Laser Engraver

thingiverse

This is a DIY laser CNC/engraver sold out of China as the "30x40 CNC Laser Engraver." It's an excellent hobby tool for the price, but it needs a lot of upgrades. A cable chain system prevents the y-axis wires from creeping into the work area while the CNC is running. Without some system to hold those wires, you run a risk of burning through them. This is less important than the x-axis cable management, in my opinion. I have a solution for that posted as well at https://www.thingiverse.com/thing:4010022. The two sides of the assembly (left and right) for each of the two y-axis motors are identical mirror images. The front end of the left and right side cable chains attaches with a slide-on frame over the stepper motors, retaining the frame without needing screws or hardware modifications to the machine. Two screws are needed on each frame to attach the first links; I used M4*8 but a 6-32 would probably work fine as well. The back end attaches with a replacement to the back corner legs. Simply remove the existing back corner legs and attach the back end mounts using the same screws. On my 30cm by 40cm assembly, I needed 16 links on each side. I find the overhang of the thin walls of the links difficult to print reliably, so I've added small support pads in those locations that need to be snipped off with your side cutters once printed. If you want a set of these parts without the support pads, let me know and I'll post them or send them to you. The system works well and seems to solve the problem of wire management. I've also designed and implemented several other enhancements. The system works well and seems to solve the problem of wire management. I've also designed and implemented cable chains for the y-axis motors. Link below. This is part of a series of upgrades and enhancements to the 2020-based 30x40 CNC Laser Engraver. I'm posting them all now, and will add links to them shortly. X-axis & laser cable chains - https://www.thingiverse.com/thing:4010022 Y-axis cable chains - https://www.thingiverse.com/thing:4010156 Tool holder - https://www.thingiverse.com/thing:4009971 Wire holder - https://www.thingiverse.com/thing:4010210 Mid posts - TBD Clamping strain relief Leg posts and clamping pad - https://www.thingiverse.com/thing:4009990

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