After a few more ‘double-checks’ I’m ready to tighten things down to my table top and move on to the wiring. I’ll read thru the instructions a few times before starting but I have the feeling I’ve been overly complicating things in my head so figured I’d ask.
While I bought both a power switch and emergency stop switch when I ordered parts I’m thinking I’ll initially go with a switched power strip to simplify things. From what I see using the full RAMBo it looks like what I’ll need is wires from the power supply to the board, wires (which I recognize) to the X, Y, and Z motors, and two ribbon cables between the board and the LCD.
Also included are 4 harnesses of a black and a white wire having a multi pin connector on one end and female blade connectors on the other end. Am I correct in thinking they’re for the dual end stop set up which I won’t be using?
Thanks! I just thought I’d simplify things for now as I know from past projects in a few months I’ll inevitably think of things I wish I’d done differently, this way I’ll have less to un/redo.
Just be careful to unplug everything when you go to re-wire it.
When I added a relay to switch the router on and off on my Lowrider, I wired it up, tested it and then decided to change the wire routing…went to snip the AC wires to the spindle relay…KaPOW!
Yep, forgot to unplug it after testing. Surprisingly the circuit breaker didn’t trip, turns out the GFCI outlets actually work…
Sadly not the first time I’ve done that, and probably won’t be the last, but that most recent episode will probably keep me honest for a little while…
Did you order your board to be pre-flashed for dual-endstops? If so, I don’t think your MPCNC will run until you either: connect the endstop switches, or flash your board to be non-dual-endstop.
It should run OK. It’ll have ‘?’ on the display for coordinates and might not play well with negative coordinates, but that should be fine. Of course, if the endstops were thrown in because rambo and you have the non dual stop firmware installed, you’re fine.
I don’t recall there being any question asked to what way you’d like it flashed, I decided to go with the full-size Rambo just so I’d have the dual end-stop option in the future. I guess it may become another learning experience.
A warning worth remembering. Ever since cars/bikes starts adding more and more electronics I’ve very cautious about what’s on/plugged in when making changes trying to avoid any $$$ mistakes.
I was just looking at the shop, specifically the wiring kit whose description states “If you want to try the Dual Endstop Firmware use the Individual kit”, being I ordered the Series Kit I’m guessing my board would have been flashed accordingly.
It is strange that my father’s circuit safety lessons don’t seem to have stuck…He was quite safety conscious.
I remember being taught the proper use of the digital circuit tester…
He took pains to point out that when bridging line and neutral wires to check for “hot” one should be sure to use digits of the same hand to avoid running the current through the heart…
