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Newly created 400x400 here. i just printed a calibration cube. First layer is perfect, no trouble there. What im experiencing though is the sides of the cube are slanted. its not a 90 degree angle. maybe 89 degrees. its quite noticable. If i take a square along the side "Y" side or the "X" side, I can see its not square. What can i adjust? ideas? I've done a belt tensioning...and after adjustment, my mesh shows i'm now within .18...
suggestions?
9 Replies
Skew in the X gantry could be it.
It seems like your frame is not precisely build to 90 degrees. This causes the prints to be slanted. Some minor slanting can be corrected with skew_correction but if it is that noticeable, I suggest you see if you can straiten your frame. Also: https://www.klipper3d.org/Skew_Correction.html
here's a few pix: I took a 20x20x20 cube and made it 20x20x80. from the Top (i.e.x and y, it looks fine. my problem seems to be in the Z direction. could the skew adjustment handle this?
Why is the cube scaled, can you do a Skew print test?
Ie:
https://www.printables.com/model/154321-skew-test-print
i did the skew print test. the x and y were near perfectly equal. but the skew test looked funny. the edges of the skew test aren't straight. heavily slanted. thats why i did the scaled cube, so i could exaggerate the Z. I did note that the two ABS bits that hold the top of the Z screws weren't well printed -- the prints had some z-banding. so i'm reprinting them. I also am beginning to wonder if my belts might be too loose. I had them both equal, but plucking at about 50 Hz. Something on the internet said 100 herz would be far more appropriate....Plausible?
don't use sound to measure them, use your adxl
adxl shows they're equal. But i don't know how much tighter they should be.
post the graphs in #fix-my-resonance and I am sure someone there will be able to guide you on what adjustments need to be made
And the answer is: My belt tighteners were not seated into the locking nut. they were secured into the PART, but not the nut! My cubes are now square!