Thingiverse
FSR based endstop
by pfn0
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https://www.youtube.com/watch?v=Yuj6TY7PoTI
Simple sensor for detecting touches or other probes. I use it for automatic Z offset calculation on my printer.
Home with your bed probe onto the fsr (can use either device to trigger, depending on which is more sensitive), then probe the nozzle onto the FSR. The difference in Z is the offset of your nozzle to probe.
Pi Pico sourcecode available at https://github.com/pfn/fsrendstop
The case uses several M3x8 socket cap screws to secure itself closed.
The FSR is a 402 model that I picked up from aliexpress, but any thing similar in dimension should work.
Simple sensor for detecting touches or other probes. I use it for automatic Z offset calculation on my printer.
Home with your bed probe onto the fsr (can use either device to trigger, depending on which is more sensitive), then probe the nozzle onto the FSR. The difference in Z is the offset of your nozzle to probe.
Pi Pico sourcecode available at https://github.com/pfn/fsrendstop
The case uses several M3x8 socket cap screws to secure itself closed.
The FSR is a 402 model that I picked up from aliexpress, but any thing similar in dimension should work.
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