Cherry MX Keycap Tolerance Test
Description
This is a tolerance test design in Fusion 360 for my Cherry MX keycap generator CAD designs: https://www.thingiverse.com/thing:4387400 https://www.thingiverse.com/thing:4397194 This design uses the following base dimensions for the + shaped switch stem from Cherry MX official drawings: Width: 4.1mm Thickness: 1.17mm The final width and thickness of the stem hole is calculated with a parameter called MXHoleTolerance which widens the stem hole in the keycap slightly. Instructions: 1. Print a range of test pieces with varying tolerances. For SLA printers, around 0.05mm seems to work well, for FDM printers maybe over to 0.1 2. Try inserting them onto your mechanical switches and find the one with the best fit 3. Open the Keycap generator (links above), go into MODIFY -> Change Parameters and change MXHoleTolerance to the value listed on the print with the best fit 4. Use the keycap generator to create and print the keys of your dreams Note: even FDM printers only have an accuracy around 0.05mm so there will always be variation. If you are getting inconsistent fitment, try turning on anti-aliasing in your slicer (in Chitubox this is in Settings -> Advanced) and try rotating models 45 degrees on the XY plane so the straight lines go diagonally across the screen's pixels. I would also suggest getting some fine diamond-coated needle files to adjust keys that are too tight.
Statistics
Likes
57
Downloads
0