No insult taken. 
I’m sure there is a very simple and obvious explanation for my difficulties. Yes, I did click the connect button, to no avail.
Skip to main content
Thank you all so much for your input. I am going to work through these ideas tonight and see what happens. I very much appreciate all of the great advice!
Great call. I searched and found a version of the firmware specific to delta, and now the RH is controlling the printer. Testament to my ignorance that I thought I had the generic firmware properly configured. I will look more into the stepper configurations now, but I am concerned I’ve ruined two of my motors somehow, as the x-assigned motor seems to turn fine while the other two appear to attempt to turn but cannot.
One small step! Thanks to your advice, I was able to track down a better version of the firmware and got RH to control certain functions of the printer. I really appreciate all of the help!
Next step will be to diagnose the issue with two of my stepper motors. X spins fine, but Y and Z both sound like they are trying to turn, but the shaft is locked somehow. Not sure if that makes sense; this is not my electronics forte. This makes repairing iPads look like playing with Lincoln Logs. Anyhow, from what I am reading there may be a driver issue, but I am working on educating myself further (to me, a driver is another type of firmware to control, say, a printer rather than something physical).
Some ideas :
You can switch X motor and Y/Z to check if motors y/z are OK.
On your board, do you have any potentiometer to adjust motor current ?
If you don’t have enough current in the motor coil, the motor will not have enough torque.
Check motor cable wiring, if the motor vibrates, it can come from inversion of wires.
Is your power supply enough strong (can you check its voltage when motors are going on ?)
If Y/Z max speed is too high (configuration.h), the motors cannot turn. Try to make a small move with the same speed as X motor.
Awesome! Great job!. @Valdane mentioned swapping the non-working motor to the working connector and try. That is a great idea.
MAKESURE you have it powered off when doing this.
Another note, on the RAMPS board the driver chips are a tight fit and the orientation of the board is important and it could be tough to get them all plugged in correctly because of the clearance. just take a look and make sure they are in correctly.
What flavor of firmware are you using, Marlin or Repetier.?
A look at your configuration.h might help also.
Make sure you have the printer powered off when switching the stepper motors, if you do it while energized, well if they were not bad, there is a good chance they are now.
did you try adjusting the amperage using the screw on the RAMPS boards. If they are making noise most likely this is the problem. Make sure you unplug the printer before making any adjustments. Also don’t turn the screw too far the first time, just slowly turn it until it starts to sound better and move.
Have you checked your power supply. You will want to look and see if its set to 220V or 110V. Although its turned on and giving power to your board, it may not be giving power to the components. Most power supplies are automatically set at 220V when assembled/shipped in China. You may have that issue, if so just power down your printer, unplug it from the wall, and flick that little switch to 110V. Plug everything back in, turn it on, and it should connect without having any commands stacking.