Designed in Blender.
required bed space 300x300
nozzle: 0.4
supports: yes
layer height: 0.1
infill: 5%
The piece might be tight at first, it will ride smoothly after a couple times you use it.
Alternative version included for ender 3, "calliper for ender 3.stl" this version must be printed at 45º to fit the 220x220 print bed.
Print Settings
Rafts: Doesn't Matter
Supports: Yes
Resolution: 0.1
Infill: 5%
Filament material: PLA
The author hasn't provided the model origin yet.