Im using the Folger Tech Prusa i3 acrylic kit.
It uses an arduino mega 2560 and RAMPS 1.4 shield.
Ive been going back and forth through email for the past couple weeks (months) with their tech support trying to figure this out. Ive so far received 2 replacement megas, 3 RAMPS, and an additional set of stepper drivers. So in total I have 3 arduinos, 4 RAMPS shields, and 2 sets of stepper drivers, all of which Im assuming to be totally functional at this point.
So I have everything wired and oriented 100% correctly, according to their manual and multiple sources Ive found on the internet. Im using Marlin_RAMPS_EPCOS_i38 firmware.
In repetier-host I can home the X and the Y, and freely move them with manual control thereafter. The Z doesn't move. I issue the command to home the Z and the status changes to "n Commands Waiting" and just continues to stack them up until I emergency stop. If I plug any of my other motor wires into the Z motors, they turn effortlessly, so I doubt it is getting stuck anywhere. If I plug my Z motor wires into the other motors, the don't move. No surprise there. I've tried swapping in the spare stepper driver and also the known working X driver, with no luck. My Z driver will work for the X motor, however.
I haven't probed but Im almost certain theres no current leaving the Z motor headers of the ramps shield, and I have a really hard time believing that in my pile of hardware there isn't a single working board.
We've tried disabling the endstops, disabling the MAX endstops, inverting the endstops, adjusting Z feed rate, inverting Z motors, swapping drivers all around, swapping boards all around, swapping wires all around. No Z movement, not even a noise or a struggle.
I could probably keep up the email chain for another couple of weeks and be drowning in replacement electronics, but Id rather have a working printer. Anybody have any suggestions?
It uses an arduino mega 2560 and RAMPS 1.4 shield.
Ive been going back and forth through email for the past couple weeks (months) with their tech support trying to figure this out. Ive so far received 2 replacement megas, 3 RAMPS, and an additional set of stepper drivers. So in total I have 3 arduinos, 4 RAMPS shields, and 2 sets of stepper drivers, all of which Im assuming to be totally functional at this point.
So I have everything wired and oriented 100% correctly, according to their manual and multiple sources Ive found on the internet. Im using Marlin_RAMPS_EPCOS_i38 firmware.
In repetier-host I can home the X and the Y, and freely move them with manual control thereafter. The Z doesn't move. I issue the command to home the Z and the status changes to "n Commands Waiting" and just continues to stack them up until I emergency stop. If I plug any of my other motor wires into the Z motors, they turn effortlessly, so I doubt it is getting stuck anywhere. If I plug my Z motor wires into the other motors, the don't move. No surprise there. I've tried swapping in the spare stepper driver and also the known working X driver, with no luck. My Z driver will work for the X motor, however.
I haven't probed but Im almost certain theres no current leaving the Z motor headers of the ramps shield, and I have a really hard time believing that in my pile of hardware there isn't a single working board.
We've tried disabling the endstops, disabling the MAX endstops, inverting the endstops, adjusting Z feed rate, inverting Z motors, swapping drivers all around, swapping boards all around, swapping wires all around. No Z movement, not even a noise or a struggle.
I could probably keep up the email chain for another couple of weeks and be drowning in replacement electronics, but Id rather have a working printer. Anybody have any suggestions?