It's quite nice I haven't tested yet the full bondtech with motor but I'm finishing a 'Fat IRobertI' feeder to adapt the cheap 40€ kit (for 1.75mm) and I must say I'm quite impressed with the quality and firm grip with non existent grind.
35k retracts print in 5h finished perfectly.
And this it's the iteration 6-7 of the design that I think will be the final version
Also had to adjust the esteps to 141.8 that's a bit more precise than the 141 (for 200 rev motor 16microstep). I'll do a full post as soon I get 15h of steady prints.
I think its the best thing I did to my UM2. and that's including the OB
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