WIP. Parts have gone through a few revisions now and tested with wires, but changes are still happening.
Update April 10, 2018: Haven't done any extensive testing, but everything seems to work just fine. I do need to strengthen the molex bracketry a bit though. I had a couple of them snap on me while I was pushing in the fittings. Still, not bad!
I'm modifying my Shapeoko 2 with a first run X-Carve upgrade kit from 2015. So, it's missing holes here and there. I also don't have the wiring/drag chain kit the older or newer X-Carve's come with. So, I'm rolling my own wire management and stuff. And while I could let my drill press peck at the plates to make hard mount points, CAD sounded like more fun to while away the hours.
Designed so everything can print flat and help minimize supports everything would need.
The extrusion brackets perform the following tasks:
Hold a 2020 extrusion to the gantry by way of the Makerslide rail. The 2020 is/should be tapped for M5 threading.
Act as bump stops so the extruded carriage doesn't slam into the smooth belt guide wheels.
Act as adjustable bump stops for mech limit switches on the X axis.
The major differences between v1 and v2 is that v2 for sure needs supports due to providing clearance for the drag chain to easily pierce the plane of the gantry side plates.
I will eventually make something so I can use Hall effect endstops. Baby steps.
The drag chain guides and anchor are not necessary, but I like a belts and suspenders approach. They will help ensure that the drag chain more or less stays in place. It's not uncommon for drag chain to have a U channel to lie in. This is my answer to that.
The gantry anchor is definitely wonky, but it'll do the job.
x4 M5 x 10mm machine screw
x4 M5 washer
x2 M5 T-slot nuts (Misumi HFS5 style)
x2 M3 x 16mm machine screw
x2 M3 washer
x2 M3 nylock nut
Rail guides and rail drag chain anchor
x7 M5 x 12mm machine screw
x8 M5 T-slot nuts (Misumi HFS5 style)
x1 M5 x 10mm machine screw
x8 M5 washer
Gantry drag chain anchor
x2 M5 x 16mm machine screw
x2 M5 washer
x2 M5 nylock nut
x2 M4 x 10mm machine screw
x2 M4 washer
R38 18mm x 37mm (flap open close type)
Connectors on the gantry are Molex Microfit 3.0 dual row panel fit plugs.
I'm also using 5 pin aircraft-ish connectors off of ali-express.