OK, so firstly I am no expert, but I installed my board yesterday, and I’ll tell you what I think, but double check.
First, read this >> https://cohesion3d.com/knowledgebase/k40-with-m2nano-cohesion3d-laserboard-installation/
You’ll find your wiring confiog around 3/4 of the way down. You’ll be glad to know it’s the easier of the two!
I may skip some steps here, but you’ll get the gist…
The ribbon cable pulls out of your board - be gentle and with a little side to side tugging it’ll pop right out. It’s a bare ribbon - the connectors are on the board - confusing I know, but the connector doesn’t come with the ribbon.
Unclip the multi-coloured one and the power one. Your board should now be free of any wiring.
Take the mounting panel and board out, there’s a couple of nuts/bolts - you’ll need to get under the machine a little most likely.
Unscrew the mounting bolts from the board - don’t lose the plastic risers or the nuts/bolts - you’ll need them later.
Most likely you’ll need to drill new holes to mount it, but placement is vital. Put the metal mounting board back in its original position (don’t screw it down), and use a sharpie to mark on the edge of the mounting panel where the USB cutout on the the frame is.
Take the mounting panel out, lay your board so that the power and USB connectors of the C3D board are located where the panel cut out that you just marked are.
Use a sharpie to pop a dot where your holes need to be. Pilot hole, then larger bit to size needed. 5mm IIRC.
De-bur the holes, then using the plastic risers and bolts from before mount the board to the mounting panel.
Now, on to the actually easy bit. Your ribbon goes in the ribbon holder on the left, and the multi-coloured one goes on to the Y axis, all as described in the link above.
Then you have two choices - you can either use the power clip as you have it and pop it on the board, or you can do it the way that I did it as I didn’t have the clip - but I’d only do that if you have the ability to crimp or tin the ends of your wires, as they’ll go in to the screw down terminals.
Once all that is done re-set the mounting panel in the machine, pop the power cable in to the card (but not in to the wall outlet yet), drop in the SD card that came with it, then plug in the wall outlet.
Robert’s your mother’s brother!