Calibration Block with Countersunk Hole and Slot

Calibration Block with Countersunk Hole and Slot

thingiverse

A 20mm calibration block from Spacexula's set was modified with a countersunk M3 screw hole and a slot for a M3 nut. This allows testing the bot's accuracy in creating inside holes and slots within an object's perimeter. The head diameter is 5.89mm, shaft diameter 3.06mm, ensuring a snug fit. Originally designed for a Printrbot Plus, it comes from a SketchUp file.

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