I’ve been reading this forum since a few years. Actually my build also started about 2-3 years back. I was planning to build a LR2 at that time. I started printing the parts and ordered the kit, I had everything ready and went on a long holiday. When I came back I realised that the space I had opted for in our shared workshop was rented out to someone else, so I had nowhere to build the LR. A few months back those people left the workshop, so there was space available again. I realised that LR3 is out, so I started printing the new parts and bought the upgrade kit and started building the table.
During the last two weeks I started assembling the machine, and today I fired it up first time (Cables still looking messy as hell, but wanted to check function first)
Only one side was moving so I realised that I still had the LR2 Firmware installed. Updated that and now everything moves.
X and Z Axis are working fine, including the endstops and everything. But I have a weird problem with the Y-axis: If I move in + direction it moves as expected, both sides running forward. But if I move in - direction the motors start moving in opposite directions. Does anyone have an Idea what that could be? I had to solder my own extension cables for the stepper, is it possible that I switched some pins and that leads to this behaviour?
Both Y motors are actually moving and the endstops work as well.
One motor behaves as expected. If i input Y+ on the screen, it moves in + direction, and if I input Y- it moves in - direction.
The other motor on the other hand always moves in + direction. If I input Y+ it moves in + direction, but if I input Y- it also moves in + direction.
Just investigated the problem a bit further and it seems to be coming from one stepper output of the SKR Pro board itself. when I change the two stepper wires it translates to the other stepper. I already tried switching the stepperdriver which didnt change anything, and I also tried uploading an older firmware just in case.
Thanks for the suggestion, but I think it’s firmware related. It’s not specific to one motor. Every motor i hook up to that outlet shows the same behaviour. So I guess it must have to do with the board or the firmware.
The direction of each motor is controlled by the direction pin on a driver. If the pin is turned on the motor turns in on direction and if it is turned off the motor turns in the opposite direction. If there a break in the circuit for one of the motors, the motor will move in only direction even if the driver is trying to turn on the direction pin.
Finally found some time again tonight.
Did a squareness test and as it was quite accurate (about 0.5mm off) i thought " why not just try to cut the strut plates"
And so I did my first cuts today.
Strut plates came out near perfect and i’m happy:)
I just have a weird problem with the cuts getting deeper and deeper the further i go in y-direction.
Will investigate further.
To-dos: strut plates, wiring, mounting skr in case, dust extraction.
Totally forgot about this: I’m also having a weird problem with the Touchscreen. In Marlin mode everything is working fine. But when switching to Touchscreen-mode, it says “no printer attached” and the machine Doesn’t do anything. I also double checked that the wiring is correct…
