HAHA guys i found the problem i can't believe: I used the wrong motor directions so nothing worked logical, minus were plus and plus were minus Hääää??? oh my god 
now it works like it should.
Best posts made by PuddingBaer91
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RE: How to change print start point/coordinate system originposted in General Discussion
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RE: Requested speed is not reachedposted in General Discussion
bowden length is about 700mm and i have done the calibration to find the value. With this value i get good results
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RE: Requested speed is not reachedposted in General Discussion
yes checked that. Here is also a video with cover (second bearing) mounted.
https://photos.app.goo.gl/PoWPArpmCjFiu4kH7
metal gears still slipping
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RE: Requested speed is not reachedposted in General Discussion
Commando Back, talked with bondtech Support and they told me it is designed for using with Filament loaded. Then they doesn't Slip. Reassemled and If i Turn the White Gear fast Back and forth by hand with Filament loaded There ist absolutely No Bad Sound. So i will try it again. If it is Not better i will do a Print without bondtech Extruder to Gear only Extruder stepper
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RE: Trigger height changes when i swap nozzleposted in General Discussion
Because of this abnormal and unexplainable thing i could not sleep anymore. I deassembled my effector and found the reason: when i put the heatsink back into the effector hole i not watched careful enough to my hot end fan wires. Therefore i clamped the black wire between the sink and the effector plate. OMG
Because of the elasticity of the isolation i got a different trigger height. Now i get my old trigger height. Reason found and explained. Now i can sleep like a baby again
