MPCNC Cable Chain Snap Fit Supports for Aluminum "L" angle bar (U.S. version) by 3dEz

Last crawled date: 3 years ago

This set allows installation of an "L" Aluminum Angle Bar for the X and Y Axis cable chain.
I have made it snap-fit on the U.S. EMT tube (US Version), but I recommend wrapping with one zip tie after you position everything.
I was able to route the wires through the cable chain with connectors installed by wrapping the bundles with PFTE tape (plumbing teflon tape) and pulling them gently with a tweezer when there was a bit of snag.
Parts you will need:
1) Cable chain, such as this one: ($6 each)http://www.amazon.com/gp/product/B00880AVL2?psc=1&redirect=true&ref_=oh_aui_search_detailpage
2) Aluminum angle bar such as this one:http://www.homedepot.com/p/Everbilt-1-in-x-96-in-Aluminum-Angle-Bar-with-1-20-in-Thick-802587/204273981?MERCH=REC-_-PIPHorizontal1_rr-_-204273951-_-204273981-_-N
3) 2 X 5/16", 3" long screws for each axis, total of 4 screws if you are doing for X and Y. These will replace the 2.5" screw on the motor block to allow mounting the chain support bracket.
The STL's are as follows:
1) The biggest part is the mount to the motor block. Print one unit for each axis
2) The end clip attaches to the EMT tube leg of the corner block - If you will need to print two of those, regardless of installing for 1 axis or 2 axis.
3) The XY clip combines 2 clips into one assembly if you are installing both X and Y cable chains.
4) The small sliding clips holds and directs the cable chain into the rail when the axis is moving. I have printed 3 clips for each axis. Slide the clips in the aluminum bar.
Some general print advice: I initially planned to have these brackets designed to be printed laying down 90 degrees to avoid supports but after a few tests I realized the need for a curved "bump" to avoid snagging with the chain. So print the parts with supports keeping the orientation in the attached STL. Since the walls are thin, ensure your extrusion width is not creating hollow walls (check the sliced view). Finally, Reserve some time to gently remove all support material from the tiny slots (have a glass of wine while you do that :).