Thingiverse
Measurement test
door vsvenson
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I made this as a test to see the tolerances my 3D printer is capable of.
The block is a 20mm cube, with the sides labeled for the axis that moves to determine its size. This way, I can compare the relative accuracy of each axis by measure the cube with a pair of calipers.
There is also a set of cylinders - a hole that *should* be 20mm, and then 6 "plugs" that are made a little smaller in 0.1mm increments. (e.g. 20mm, 19.9mm, 19.8mm, 19.7mm, 19.6mm and 19.5mm) This way, I can use the set to learn what clearances I should build into models for either a press fit or a sliding fit, etc.
It's interesting to note that my printer holds exterior dimension to about 0.1mm from the model, but interior dimensions come out about 0.4mm smaller than intended.
This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/2XaqsRJ4Tvt
The block is a 20mm cube, with the sides labeled for the axis that moves to determine its size. This way, I can compare the relative accuracy of each axis by measure the cube with a pair of calipers.
There is also a set of cylinders - a hole that *should* be 20mm, and then 6 "plugs" that are made a little smaller in 0.1mm increments. (e.g. 20mm, 19.9mm, 19.8mm, 19.7mm, 19.6mm and 19.5mm) This way, I can use the set to learn what clearances I should build into models for either a press fit or a sliding fit, etc.
It's interesting to note that my printer holds exterior dimension to about 0.1mm from the model, but interior dimensions come out about 0.4mm smaller than intended.
This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/2XaqsRJ4Tvt
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