Chatting with Sandy Noble over at the Polargraph website has been extremely helpful. 1 It looks like he’s added three changes to the Adafruit Motor Shield:
- Heatsink added23
- Breakout boards to connect the terminals to the clips for the motor leads. However, it looks like there’s a small little component of a circular purple variety also on that board.
- Extra pins for hooking up a cooling fan. Sandy says he doesn’t use them any more, but it really wouldn’t be a bad idea given that it would take hours for even a simple print.
- The photo is from Sandy Noble’s photo stream. It says All Rights Reserved and I will happily take it down if he asks and says this is not a fair use. Given that all of his stuff has been very open source, I’m guessing this was just a default setting. [↩]
- To the H-Bridges? [↩]
- Also… Where does one get a heatsink? How do you attach it? [↩]