The Ultimate X,Y-Axis Calibration Tool @ 120mm
14
Likes
371
Downloads
1145
Views
Published on August 2, 2012
Derived from
Square, Known Distance Calibration tool
by MrJohn
Description
I was frustrated with small calibration targets that required measurement of 10-40 mm. My thought that was stepper error would be compounded over longer lengths. So I created a 120 mm target. The minor axis is 15mm. The thickness is 3mm. Perhaps someone has done this already...and I'm happy to give credit where credit is due.
Instructions
Print and measure while still attached to the bed to avoid distortion from extraction.
Traditionally, all other things being equal, on smaller calibrations, say for a 10, 20, or 40 mm theoretical measurement, a +1% error would result in actual measurements of 10.1, 20.2, or 40.4 mm, whereas this print would provide a measurement of 121.2 mm. I don't know about you, but discerning an error of 1.2 mm is a lot easier than one that is 400 microns, especially when you factor in the anisotropic thermal distortions in the extruded part. Compared to the 40 mm calibration your sensitivity goes up by a factor of three.
Other thoughts and perspectives much appreciated.
Traditionally, all other things being equal, on smaller calibrations, say for a 10, 20, or 40 mm theoretical measurement, a +1% error would result in actual measurements of 10.1, 20.2, or 40.4 mm, whereas this print would provide a measurement of 121.2 mm. I don't know about you, but discerning an error of 1.2 mm is a lot easier than one that is 400 microns, especially when you factor in the anisotropic thermal distortions in the extruded part. Compared to the 40 mm calibration your sensitivity goes up by a factor of three.
Other thoughts and perspectives much appreciated.
You must be logged in to post a comment.
License
The Ultimate X,Y-Axis Calibration Tool @ 120mm by RockstarAlchemist is licensed under the Attribution - Share Alike - Creative Commons license.
More from RockstarAlchemist
More from 3D Printing Tests
Bigger is better