Re: Do the heatsinks on a A4988 make you nervous?

Quote
cozmicray
....
100s of A4988 driver out there running without heat sinks without any problems

If it does get too hot --- get another one for $5

@cozmicray

You are not getting the real issue here: overheating during printing does not damage these driver chips, because they shutdown before they reach a critical temperature.

The point is that when they shutdown during a print and ruin it, you have essentially wasted a lot of time, electricity and filament for nothing.

Replacing them does not solve anything at all. You just have to cool them properly. A small 12V DC fan costs $1, much less than the value I put on most of the parts I print on my 3D printers.