MEMS Gyroscope Mockup – Rotary Disk Resonator (Giant Scale)
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Giant-scale model of a MEMS rotary-disk vibratory gyroscope. Print flat, press onto the pinned base. No supports.
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- Printables
- Kategoria
- Engineering
- Licencja
- Creative Commons — Attribution — Noncommercial
A giant-scale, 3D-printable mockup of a MEMS rotary-disk vibratory gyroscope. The real device is etched from silicon and is smaller than a grain of rice; this model is about 106 mm across, so you can see and touch its structure.
Based on: "RR-gyro" layout from openMEMSdesign by Vladimir Kolchuzhin
https://github.com/Kolchuzhin/openMEMSdesign
Licensed under CC BY-NC 4.0 (https://creativecommons.org/licenses/by-nc/4.0/)
Changes: this is a modified and simplified version of the original layout. Some shapes and details were changed to make it printable at large scale, and it was converted into a two-part 3D model (device layer + pinned base). It is not an exact reproduction of the original design.
Parts
- rr_gyro_device_layer.stl: rotor + 6 fixed electrodes (106 x 101 x 4 mm)
- rr_gyro_base.stl: base plate with 14 pins (Ø112 x 7.6 mm)
How it works
The disk is anchored at the center by thin beams. The comb electrodes drive it to oscillate back and forth. When the sensor rotates, the Coriolis force adds a small secondary motion, which the electrodes detect as a change in capacitance. The standoffs on the base lift the device layer 1.5 mm, like the air gap under a real released MEMS structure.
Print settings
- 0.4 mm nozzle, 0.2 mm layers, 100% infill
- No supports, print flat
- Gaps are about 1 mm: use elephant-foot compensation
Assembly
Press the device layer onto the base pins (Ø3.0 mm pins, ~Ø3.3 mm holes). No glue needed.
License
This model is shared under CC BY-NC 4.0. Non-commercial use only. Please credit both Vladimir Kolchuzhin (openMEMSdesign) and this model.