Timeline for Alternative to A4988 stepper motor driver?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
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| Oct 9, 2014 at 3:03 | comment | added | user834 | @ConnorWolf, quite right! I didn't realize this until (what is now) many years later. I've since 'graduated' to using the Smoothieboard, which uses A4982 stepper drivers that have better thermal qualities along with some thermal vias placed underneath. They explicitly say not to put heat sinks on the top of them for precisely the reason you pointed out. | |
| Sep 5, 2014 at 3:51 | comment | added | Connor Wolf | The problem with attaching a heatsink it it's being placed in the wrong place. The A4988 is designed to be heatsunk from the bottom. Really, someone needs to rework their carrier boards so you can just attach a heatsink to the bottom side, or (much better) dump the whole "carrier board" approach all-together. A whole board that is single-sided load, that can be clamped against a fairly large heatsink is the proper design. | |
| Sep 6, 2012 at 19:39 | history | answered | user834 | CC BY-SA 3.0 |