Core One ShaperSafe Case — Hinged Storage Box for Prusa Input Shaper Accelerometer

If you’ve ever tossed the Prusa Core One input shaper accelerometer back in a drawer and later found it tangled, scratched, or mysteriously “missing a cable”… this case is for you.

This is an original, from-scratch design: a compact hinged protective case sized for the accelerometer used during Input Shaper calibration on the Prusa Core One. It’s meant to keep the kit together, protected, and easy to grab whenever you run maintenance, swap nozzles, change build surfaces, or simply want to re-check vibrations after a mod.

What it does

• Protects the accelerometer during storage and transport

• Keeps the cable neatly contained (no more spaghetti in the toolbox)

• Provides dedicated space for the kit components, so everything stays in one place

• Hinged lid for quick access, with a clean “tool case” feel on the bench

Design highlights

• Compact footprint: easy to store near the printer

• Internal layout intended to prevent parts from rattling around

• Simple, practical geometry designed with 3D printing tolerances in mind

• Looks great in a two-tone print, but works perfectly in a single color too

Print notes

• Material used for the print in the photos: Overture PLA Matte

• Recommended approach (typical PLA-friendly settings):

  • 0.20 mm layer height (or finer if you want an extra clean lid top)

  • 2 perimeters, 10–20% infill

  • Brim optional (only if your printer tends to lift corners)

• If your printer is slightly tight/loose dimensionally, a small XY compensation tweak in the slicer can dial in the fit.

Assembly / use

• Print the parts, place the accelerometer kit inside, close the lid, done.

Feedback and remixes

If you’d like a version with a different internal layout (extra compartments, label recess, tighter cable channel, etc.), this model is a good base to evolve.