Hi, I did some maintenance on the roller holder as per usual. I had always done this using the LPU calbration routine (now I know there is a motor move routine). All previous servicing had gone well. This time maybe I did not cancel the LPU replacement but ended up with the system doing a recalibration. Upon which it failed. Firmware was reflashed, made no difference. Three different errors were produced in amongst all this but now solidly reports a fiducial scale scan error. Printer dead now but it boots up fine and is ready to print but won’t due to LPU non-calibration. Help! Thanks - David
Hello @DJBSteele!
We’d like to get you back up and running as quickly as possible, and I was sorry to read that this routine seemed to have kicked off other errors. Generally speaking the LPU replacement routine, while creating a new calibration file, shouldn’t trigger any of these concerns. Nor would any roller holder activities. Should there have been a LPU replacement in the past, you would need to run the routine again after a factory reset as that new profile would have been removed.
It sounds like there is a communication error happening between the various different boards. I would check the cable connections to the LPU if those were touched, crimped, etc. in any way. It also is not a band idea to reflash the firmware again.
Beyond that, I’d ask that you reach out to us in Formlabs Services so we can take a deeper look into your machine to see what’s going on. I’m sure we’ll be able to assist. You can create a case here to talk to our experts. Thanks
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Hi Don,
We did all the reflashing and rebooting and … and … and. And then ! I got so fed up I just walked away for a few hours, came back and tried my luck. Voila, it came to life, calibration passed and we are running again. Lesson learned … DO NOT use the LPU replacement routine to do roller servicing. I was not aware a new command was there to move the X-Axis. Now I know and that’s what will be used.
Why it sorted itself out? Who knows. The calibration must be on a knife edge I guess.
Thanks much,
David
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Thanks for the quick follow-up. Glad to hear you’re back up and running.