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SERIOUSLY…HOW DOES THIS THING WORK?
TOOLHEAD ON A RAIL
With Tap, the entire toolhead (including Extruder) can move in the Z direction on a short MGN9 rail with a MGN9H carriage. In normal printing
operation, the toolhead is held in place by a pair of magnets, acting on a pair of screws. During probing the toolhead lifts up slightly, activating a
photointerrupter switch concealed in the mechanism.
OPTICAL SENSOR
See the BOM for the sensor part numbers.
These are all tested and are known to work.
If you ignore this advice and buy a random
sensor off Amazon, it may not work.
CENTER (RED)
Houses magnets, retains belts, and is connected
to the MGN12H X-axis. Up top, there’s a plastic
tab that triggers the optical sensor.
FRONT (BLACK)
Connects to the toolhead and extruder,
rides on a MGN9 Rail, and houses the
sensor.