Mechanical Endstop Switch (3 Pack)
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Mechanical switches are less complicated to implement and cheaper than optical endstops because they do not require a circuit board and only use 2 wires for connecting the switch. Pull up and down resistors can be put close to the main board. You can use contact switches and contact-less (usually magnetically actuated) mechanical switches. Contact-less magnetic switches are called reed switches . They are proximity switches that close (or switch over) if a magnet comes close enough (usually 1mm or less) and open if the magnet moves away. Reed switches are used as sensors in home alarm systems to detect open windows and doors. - from the RepRap Wiki Free Shipping Product comes with 3-pin connection cable 3-pin cable, mid pin the black pin is ground (“-” on ramps board). Red to VCC (“+” on ramps board). Green to SIGNAL (“s” on ramps board) A typical printer system would need at least three endstop switches. Only $17.95 - Click here to buy now! |
