Endstop Filament Sensor Spacer
thingiverse
Just hot-glue glue this spacer and PTFE tube together for a great time. 1.75mm filament Cheap Optical Encoder / Endstop https://www.thingiverse.com/thing:1701155 Here is what the one I used looks like I used the milky white PTFE tube, the clearer stuff might work too I had to add a little piece of electrical tape around the top IR sensor on the green LED side to make it shut off. It's easy to see it working before gluing it all in place just try with a piece of test filament Also is a good idea to test this with white filament ... not even sure if clear works with it yet Well I suppose it can be fiddled with but mine gives false readings sometimes Would probably be better to use a mechanical switch instead https://www.thingiverse.com/thing:2443425 Something like this https://github.com/luc-github/Repetier-Firmware-4-Davinci/issues/306
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