Bondtech DDG on UM2 Extended

[my3DBr 4]

Hello guys, greetings.

So, I am using Tinkergnome V17.10.1 (which I believe is the latest stable version) in a UM2 extended upgraded with a Bondtech DDG (with a adaptation piece found on YouMagine). I'm having two problems:

1)Once in a while my Printer inverts all the axis out from the blue, no clues whatsoever why it is happening, I have to factory reset it, and start all over again (and dialing all the steps again);

2) I am using the stock 0,9º extruder stepper motor, and since I installed the Bondtech extruder, depending on the nozzle temp, I get heavy and frequent losing steps. I have a feeling that I was using lower temps incorrectly (for the PLA brand - Brazil, so it's unlikely you would know it). Once I step temps up it gets on track, although I was not able to notice if it is affecting the print quality (dear strings).

Any ideas?

Is it better to install a newer Tinkergnome software? 

Thank a lot in advance.

Edited April 14, 2021 by my3DBr

[my3DBr 4]

Hello.

So it seems the bore in the accessory gear is off center, thus giving skips. Anyone with the same problems using Bondtech extruders? Lucky I am...

[my3DBr 4]

Actually the gear at the stepper motor was off center, pushing the central gear from place, thus making a gap with the counter gear and then missing contact. Wow.

[GregValiant 1,301]

Is it repairable or junk?  I ask because my current favorite mantra is "Everything is a POS."

[my3DBr 4]

I replaced de third party stepper motor gear for yet another, this time a metal one. For now it seems ok. I bought the DDG for a ultimaker 2. Not +. So I had to make some adaptations - a 11 teeth gear (Aliexpress although you can print one) and a spacer adaptor - which I printed.

Edited January 17, 2022 by my3DBr