SD540 Motor Controller

[techhelpbb]

Originally Posted by marshall

Stupid questions but the casings for the SD540 controllers seem to be 3D printed. What is the plastic they are printed with? Is it ABS? Doesn't ABS begin to melt around 110C or so?

80-125 degrees C is the glass transition temperature for most variants of ABS. So it will start to get soft there but that doesn't mean the entire case will melt at all. If it was enough to liquefy the case then we wouldn't 3D print ABS at much higher temperature.

At worst it would likely melt the FDM layers together making it more a solid than it started.

I often print ABS over 225 degrees C and vacuum form over 150 degrees C.

To put that temperature in perspective your heated 3D print bed to keep that ABS from warping can be 110 degrees C.
So if the heated print bed isn't turning it into a puddle or ruining it...