I did a print with polycarbonate using no surface treatment on the bed. The poly was stuck so badly to the bed, I thought I would have to use a pneumatic jackhammer to get it off. Whew! Never again.
I started using glue stick for my experiments. I do not know if it’s related, but around this same time, I started getting messages that the micro lidar appears dirty. I’ve cleaned it with 90% alcohol and a clean micro-fiber cloth more times than I can count but the error message still keeps popping up.
Is the uneven glue stick surface creating the error condition? Solutions?
Bright external lighting can confuse the sensor. Try it in a dark room and see if that makes a difference… also, some plate types can confuse the sensor, too.
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Any idea when they’re going to fix the major flaw of bright external lighting effecting the LIDAR? Seeing as most labs and workshops have bright external lighting this is a seriously major issue. It’s a major enough issue that we’ll have to switch to the new Prusa for our next printer if it’s not fixed by mid-January. Those of us engineers that use the device aren’t seeing a real world impact on our prints but our director holds the purse strings and isn’t willing to spend money with a company when one of their products that we use is constantly throwing errors that can’t be fixed.
You could always replace the clear glass lid with a sheet of opaque acrylic. But if you engineers aren’t seeing a real world impact, then just turn the filament calibration off when you send the print to the printer. Assuming you’ve manually calibrated the filament, of course. The LIDAR doesn’t get used, shouldn’t get errors.
If you do still want to use the automatic calibration, worth knowing that the printer remembers the filament calibration. So done once, provided you don’t switch filaments or power off the machine, you don’t need to re-run the calibration after the first print.
When I’m rapid-prototyping, this is what I do. Power up the machine and run the calibration for the first print, and skip both the calibration and bed level (it also remembers the bed level) for all the subsequent prints I am doing that day.
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