Optical Filament Sensor

thingiverse

## Optical Filament Sensor Please use Google Translate, my English is not good and I'm worried it may cause confusion. ## Materials F623ZZ flanged bearings 2 M3 18mm 2 M3 10-12mm 2 M3 35-37mm 1 M3 nut 3 M3 pad 5 M5 washer 2 Mk8 extruder gear Rubber band tt motor codewheel, codewheel axle (overseas friends can buy here https://m.fr.aliexpress.com/item/32900050909.html?trace=wwwdetail2mobilesitedetail&fbclid=IwAR3yO7OH3zT9kShzw8hHXBdF2gr1t2gDyA8As6PrrtTnJzmXm2fLj9XYQQ8. Very cheap electronic making car frame, includes two codewheels and the axle of codewheel, domestic friends can search smart car, there are many, basically only need a few dollars, size is very small, smaller than printing own, difficult to print). If you cannot buy it, may need to print or find alternative products. Specific size is diameter 25mm, hole diameter 3-5mm, codewheel's grid 5mm, 20 grids (of course more is better). ## Optical Sensor ## Installation Installation needs attention, tt codewheel axle is 2mm, need to use drill to expand the hole, pay attention not to twist it, otherwise the wheel will rub against the optical sensor. The pen nib needs an inner diameter <3mm, outer diameter <5mm or find a similar size silicone tube. When installing, need to pay attention, first put one pad into the screw, then put in one bearing, then insert half of the printed part, put in the codewheel, then put in the bearing, then insert the Teflon pipe (must be inserted here, otherwise it will not fit later), then put in 3 pads, then put in Mk8 extruder gear, finally prepare everything and use M2 wrench to lock Mk8 extruder gear, tighten the screw until Mk8's depression hole aligns with the Teflon opening. The bracket has two types, one is left installation, one is right installation, according to needs select, the difference between them is that the nut's locking position is opposite, making it easier to put in the nut. For BLV printer, like the picture shows, can be compatible with BMG and Titan extruder, other extruders should be able to adjust the position easily. If there are other installation positions not suitable, just modify the bracket. ## Duet Configuration M591 D0 P7 C3 S1 R70:130 L1.2 E5 Each pulse extruder distance is 1.2048mm. First share it out, later supplement. Video https://youtu.be/afvUR2eVpiI https://youtu.be/uQimkhxvs7Y https://youtu.be/jHpotsUi7Gc Domestic friends can join the group to communicate: QQ: 773223346