Pololu stepper driver board
Revision as of 08:38, 17 December 2011 by Glenn (talk | contribs) (new - copy from Pololu Electronics and modified)
Pololu driver boards:
- Pololu A4988 stepper driver - equivalent to A4983 but with.
- Pololu A4983 stepper driver (being discontinued).
As Nophead has pointed out, that Pololu driver is a nice design, but with one big shortcoming: it will run hot, and is difficult to cool because it's so small. So what I've done is to design the electronics in such a way that they both perform their function and act as a physical duct for the flow from a fan to direct their own cooling. A happy side-effect of this is that the resulting PCBs are very simple, and can be made single-sided without any thin tracks. That is is why RepRap itself can make them. We must walk before we can run...
