Improving Dimensional Accuracy

Snapmaker 2.0
1

I print electronics enclosures for my various projects. After having trouble fitting a device in to a cutout, I printed a general calibration test with holes, bridges, posts, overhangs, etc. Using a fairly accurate caliper, the holes and cylinders all seem to be undersized on the Y axis (oval). I’m not sure how much accuracy I should expect from FDM, I’m new to it. If helpful, I can post a picture of the test and fill in the various measurements. Is this related to the k-value at all? I have already calibrated my e-value to within 1mm. Thanks in advance!

edit: I’m using snapmaker luban software currently

2

Should be able to get it to within .1mm accuracy pretty easily. Normally I would say that your steps/mm for the y rail is off, but it should be identical for all the rails… if you could test it and post the results it could be very interesting as others are having issues on the y axis apparently because the two rails are moving at different speeds.

3

Awesome, is there a standard test print I should use?

4

Its more like calibrating your e steps, in fact exactly the same except your measuring how far the rail moved

5

A few issues I’m still having: Some of the walls are dented in a few places, and the area near the screw holes aren’t completely covered

Print1
Print1600×604 101 KB

print2
print2800×738 130 KB

6

Yes, I use Teaching Techs, my experiences with it and the machine are documented here:

1 Like
7

Wow thanks, that will keep me busy for a while. I’ll update the post when I’ve applied these tips.