Modular Keyguard for the Logitech MX Mechanical
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A 3-part keyguard with a hole for every MX Mechanical key, so shaky fingers won’t hit the wrong key.
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Updated at source:
Model information
- Source
- Printables
- Category
- Computers
- License
- Creative Commons — Attribution
A rigid keyguard for the Logitech MX Mechanical with a hole for every key, built from the key positions in Logitech’s CAD template. Fingers or knuckles slide over the plate and drop into the hole they want. Neighbouring keys can’t be hit by accident.
The need: Tremor, limited fine motor control or typing with a pointer or stylus cause accidental presses. The raised plate also gives your hand something to rest on and guides the fingertip to the intended key.
How it works: The guard stands on the desk and the keyboard sits inside it. The plate sits 3.5 mm above the key tops, so the keys keep their full travel. Each hole has 0.8 mm clearance around its key and the walls leave about 0.5 mm around the keyboard, so it can’t shift.
Non-destructive: Nothing clips on and nothing touches the keys.
Parts: 3 pieces (left with the space bar, middle, and arrows plus numpad) joined by vertical dovetails, so each piece fits a normal printer bed. Print each plate-face-down for a smooth finger surface.
Print: PETG or PLA, 0.2 mm, 4 walls, 15-20% infill, no supports. Largest part 207 x 149 mm.
Not printed: nothing. A drop of glue on the dovetails is optional.
Assembly:
Lower part A (left) over the keyboard.
Slide part B straight down so its groove goes over A’s dovetail tongue.
Slide part C straight down over B’s tongue. Add anti-slip pads under the walls if your desk is slippery.
Checked virtually against Logitech’s CAD template: no collisions and no overlap between the parts, also with the keyboard shifted sideways by the remaining play. Not test-printed yet.