xyz calibration issues
Hello. I'm having issues calibrating, mainly the z axis. I have run the pinda to correct positioning and manually moved the print bed to all 9 locations, the pinda light turns off at all 9 locations. I then "home" the printer, which works just fine everything lines up, and begin a z axis calibration.
I run it up to full with no issues, both sides are even at the top and have "bottomed out" then proceed to calibrate. The z then proceeds to plunge into the surface digging a hole into the "homed" corner. The pinda is forced so hard into the surface it is pushed up from its original position, however everything is lining up the pinda is directly inside of the "print area" circle.
I have gone to "show end stops" and pressed my feeler guage against the end of the pinda and the z axis registers a 1. Also the print surface is perfectly level, using my level as well as I manually move it from sensor to sensor on the heatbed to make sure the pinda light turns off at each. And a final bit of information, when I manually run up the z axis to the top to a +210 then I run it down close to the heatbed, approx 1mm away, it registers a +16.
I'm going a little crazy trying to figure out, any insight is appreciated!
Re: xyz calibration issues
The XYZ Calibration routine is written in an non-intuitive way, which can cause this problem.
It counts on the distance from the top (where you "crash it") to the bed being approximately the correct value. It goes down to a "a safe distance" above the bed, and then begins to search for the detection points.
If the printer was not assembled correctly, it will crash the head when it comes down because it is not looking for the PINDA to trigger at all.
There are two common mistakes in assembly that can cause this:
1) The plastic stops at the top of the Z rods/screws are on upside down causing the "crashed" position to be too low by about 2 cm.
2) The extruder is not correctly installed in its position causing it to hang down too low by about 2 cm.
If you don't see it, please post photos of those two areas (or compare to assembly instructions) and we can try to help pinpoint the issue.
Any advices given are offered in good faith. It is your responsibility to ensure that by following my advice you do not suffer or cause injury, damage or loss. If you solve your problem, please post the solution…