Eating Stepper Drivers

[thirty6 3]

My Ultimaker 1's latest trick is eating stepper drivers, just killed two this morning upon switching it on.

How makes the best replacement and i want ones that are pre soldered.

I would get the genuine ones but postage is mental to the UK and i need them asap.

Cheers

 

[gr5 2,229]

google "pololu" drivers in this forum like this, then after you choose a model number google that for pricing:

So paste this into a google search:

site:umforum.ultimaker.com pololu

read about the 4988, 8825, and 4983 as a minimum. Also read about pololu "black" and "green".

 

[thirty6 3]

Hi George

Thanks for the info, ordered the Pololu A4988 black.

Realised i have a limit switch not working, would the stepper fail it the motor reached the motion limit but did not turn off?

Just trying to work out a possible reason for the failure.