Coming back to this. Optical encoders might not be a very good solution to this problem. We have a bunch of Cubepros and the very main reason they breakdown is false error signal from the filament sensor/spool sensor.
Making the filament detector module monitor the length being used or the length of filament remaining seems unnecessary, atleast for me.
Having said that, I decided to go with a mechanical limit switch. Ideally, a NC limit switch would simply go off when the end of the filament passes through. This should pause the print. But there are 4 cables currently installed in the ultimaker 3 for filament detection. Could anyone help me figure out how I'd use these 4 cables and connect it to the limit switch such that every time the switch goes off, the print pauses.
Not from an electrical domain, hence the post.
Thanks.
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Labern 774
it was a AS5048B chip magnetic rotary encoder
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