March 6, 2016 | ProgressTH We've friction-welded the contacts in place, then welded the case closed. We did this using a rotary tool and a small collet to hold an approximately 20mm long piece of PLA 3D printing filament and using the slowest setting. Applying pressure and moving the spinning filament along the seams creates a weld.

Everything seems to be working, and this is basically what we'll be using this switch for in the centrifuge, turning on and off a motor.

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