Motor driver destroyed?

jay_s_uk

@buckker no scorch marks but i've seen drivers fail without them.
it would need a repair i think.
you can always use driver E1 instead if you're not using it

buckker

@jay_s_uk Thanks for your help. I already use E1 for the second z-axis motor. Should I pay attention to something special if I buy a replacement chip?

jay_s_uk

@buckker no, nothing i'm aware of.
You'll need a hot air station and a heated plate to be able to change the chip

dc42

@jay_s_uk @buckker the TMC2660 doesn't have a thermal pad underneath, so it's also possible to remove the old chip using low melting point solder such as Chipquik.

jay_s_uk

@dc42 yes, good point

buckker

thanks to all

Do you have a source for a original TMC2660 chips? My favorite electronic store is out of stock....

jay_s_uk

@buckker i use damaged duet 2 boards as a supply of parts. where are you based?

buckker

@jay_s_uk In Switzerland

Is it possible that the TMC 2660-PA is no longer in production?

Does the TMC 2660C-PA also works? This driver is available at Digikey.

https://www.digikey.ch/en/products/detail/trinamic-motion-control-gmbh/TMC2660C-PA/4500212

jay_s_uk

@buckker yes, see here https://forum.duet3d.com/topic/29667/duet-wifi-stepper-driver-chips/5?_=1663045215718

buckker

@jay_s_uk great, I will order some TMC 2660C-PA.

Many thanks for your help