I’ve completed construction, wired it up, and started on the “software” piece of things and now I’m stuck. I purchased the MPCNC kit with RAMBO 1.4 (dual endstops) from the V1 website.
When I open up Repetier host, it will connect to the board, but when I try to move it, it errors out with the following message in the command window:
I went to Arduino IDE to see that the board is there as well, and it looks like it recognizes the board and the port, but there’s some issue (I know nothing about Arduino IDE); when I hit “get board info” under “Tools” it returns “BN: unknown board”, “VID: 27B1”, “PID: 0001”, “SN: Upload any sketch to obtain it”.
After reading several forum sections, I saw that incorrect power hookup has created some of these issues for others, so I verified that everything was receiving appropriate power and everything looked good to me as far as I can tell (12V measure at Power Input A, Power input B, and across F2).
Finally, I noticed that there is an orange LED that is intermittently blinking near the middle of the board, but I don’t see anything at the 2 LEDs listed on the Rambo 1.4 diagram.
I also purchased the LCD screen and I wanted to see if I could get that working to narrow it down to a computer issue (running windows 8), but nothing shows up on the screen. I saw in another thread that there are 4 different possible ways of connecting the cables and only 1 works; I’ve tried all 4 and none are working (I’m not going to include a picture of that because its just a blank screen).
At this point I am as far into troubleshooting as I can get on my own. Hopefully there’s something simple/obvious in everything above that I’m not seeing.
That power verification 3 of 3, if youre seeing voltage across a fuse then it’s blown. Pull the fuse out and measure resistance to see if its open circuit or low resistance.
Thanks for the quick response! The Baud rate is set at 250000, but I know Repetier Server DID install itself along with host. I’ll uninstall that and report back. Thank you
Ok, new fuse is in place with no voltage measured across it and Repetier Server uninstalled, but unfortunately still no movement; the same error message as before is showing up in Repetier host as in the picture above and only an intermittently blinking orange LED as pictured above. Went to verify again that power was flowing to the board as above (it was) but when I went to check the fuse again, it apparently blew again when I powered it up. I also checked Fuse 3 and that blew as well. F4 still is good though. Do I have the power wired up wrong?
636Steve and Mark were right; I definitely had the polarity reversed. I reversed the polarity, replaced the fuses again and it worked perfectly. Thank you to everyone for the input and guidance!
