My x- driver board was replaced after I had some trouble with changing voltages. First by me, (buying a new one) but also by Velleman.
After mounting mine, the printer worked, but seemed to be having trouble with the X-auto home. This resulted in my prints being made somewhat left of the center of the platform.
With the new driver board, the x axis end stop seems to activate directly, the moment I power up the machine.
Manual
Both manual directions of Y movement result in a movement foreward (!!)
X s only possible away from the endstop (even though it is appr. 100 mm away from the endstop
Autohome results in a movement forward (quickly reset by me). X thinks it’s already there anyway, so no movement in that direction during auto home.
I did check the wiring, bot connectors are in of the X an Y end stops.
I cleaned both end stops with a Q-tip.
I tried reloading the firmware… but it doesn’t seem to help. Does anybody understand what is going on? Tnx
M119:
23:09:31.543 : Reporting endstop status
23:09:31.543 : x_max: TRIGGERED
23:09:31.543 : y_max: open
23:09:31.543 : z_min: open
Thanks, That means disconnect and plug in again? Yes… I just did that.
Unfortunately that does not seem to help.
I now switched the X and Y endstops…to see if the mainboard or the endstop contains the problem.
The X of the mainboard is capable of reporting a non triggered endstop (Y plugged in there)
11:09:40.448 : Reporting endstop status
11:09:40.448 : x_max: open - That’s good!
11:09:40.448 : y_max: TRIGGERED (because I cant get the X-endstop cable to reach there)
11:09:40.464 : z_min: open
I can also see the X-stop is reported as triggered if i plug it in the Z-channel. That I can reach.
–> So I am focussing on the X end stop now… It probably is somehow disconnected or failing.
Thanks Kulla, I managed to plug the X in the Z at the mainboard side… And see it is reported as triggered.
Now I guess I need to find out if either the cable or the sensor of the X stop is faulty I suppose…
(And I still wonder why the Y always travels forward, no matter what way I spin the wheel. Ok ! one thing at the time…)
Hmmmm I disassembled the sensor cap and found OIL in it. It probably dripped in from the rod above. (This means I did not properly clean the sensor before , you really need to take the hood off I guess…)
Yes! a step further:
11:43:28.402 : Reporting endstop status
11:43:28.402 : x_max: open
11:43:28.402 : y_max: open
11:43:28.402 : z_min: open
11:43:28.402 : ok
Y-behaviour is still inversed… always forward to the front of the machine.
I now found out this behaviour is connected to the new DRV8825 driver board for the stepper I bought. It is a DRV just as well, but looks different.
If I switch it to the X position, that axis will always move in one direction also, no matter which way I turn the wheel.
’
long story short:
I will replace the DRV8825 driver board, as I suspect it is broken. Tnx all.
I’ve had the same problem, cleaning oil of the sensor (removing the sensor cover) helped. The problem with Y-axis started after oiling the rods… Y-sensor seems to be susceptible to contamination as the placement of it is under the Y-movement rod.
Ok ! one thing at the time…)