Filament Guide for Anet/Labists ET4

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I created this filament guide to ease the access in the filament sensor on my Labists ET4. The original spacer installed in the factory under the switch was ~1.5 mm lower than the optimum height necessary to have a straight entry in the filament feeder and the new filament guide corrected this issue, too. It gives ~5 mm height from the feeder plate to the sensor. You will need an M6 Bowden tube pneumatic adapter and a piece of ~ 10 cm of tube as filament external guide. Although the M6 threaded hole was created correctly in Inventor, the real was one is slightly smaller and I had to heat it up a bit with the heat gun and forcibly thread the pneumatic adapter in.