I had such high hopes.
These IR sensors are really cheap, and I was thinking of using them as a cheap auto bed leveling sensor or just as a contactless Z endstop. As you can see from the photo, I even printed mounts for them. One is mounted on a fan cover and would have gone on the Titan Aero's heat sink fan. The other is supposed to mount on the FLSun Cube as a contactless Z endstop.
Then I found out why no one is using these sensors. They are just inconsistent, easily affected by ambient light, and even minor differences in surfaces. So repeatability will be a super problem.
Oh well... at least the mount for the FLSun Cube can fit a mechanical switch too.
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