Robo3d Z-Carriage Drag Chain adaptor

thingiverse

If you're like me, you probably installed the drag chain in one continuous loop from the print head down to the chassis. However, this approach inherently causes the drag chain to interfere with itself at certain positions and occasionally even hit the x-carriage limit switch. After installing the wiring through that chain and carefully tucking the extruder wires, who wants to go back and undo everything just to remove a couple of links or install some other drag chain adapter that forces you to run the wiring through it again? Facepalm. I present to you a simple way to change the direction on the drag chain by simply undoing the link at the desired location, stretching it a tiny bit, then reattaching the links to their respective receivers. You won't have to remove the wires from the chain at all! The design allows for infinite adjustment until you get the desired lengths correct. Please note that this part was designed with proper clearance for the Z-carriage protrusion in mind, so it will not friction fit. It was specifically designed to use 3M VHB tape, which provides the necessary flexibility and ensures that it won't pop off on its own. You can purchase 3M VHB tape from Amazon at https://www.amazon.com/3M-Scotch-4910-VHB-Tape/dp/B00I4E4NE8/ref=sr_1_2?ie=UTF8&qid=1486316887&sr=8-2-spons&keywords=3m+vhb&psc=1. As a reminder, this part is designed to work with the popular Uxcell 10x15mm drag chain, which you can purchase from Amazon at https://www.amazon.com/dp/B0087ZSS0O/ref=sr_ph_1?ie=UTF8&qid=1486316961&sr=sr-1&keywords=uxcell+chain. Printer Settings: Brand: Robo 3D Printer Model: R1 ABS + PLA Model Rafts: No Supports: Yes Resolution: 0.25mm Infill: 20% Notes: On Cura, I used the following settings for supports: - Support Type: Everywhere - Structure Type: Lines - Overhang Angle: 45 degrees - Fill Amount: 15% - Distance X/Y: 1.2 - Distance Z: 0.25 I printed this part with PETG and do not recommend using PLA. Post-Printing: Remove supports, file down the part, and if desired, flame polish it with a lighter to achieve a smooth finish. How I Designed This: I used Solidworks 2017 to design this part.