Heater Clamp Designed per request to hold a humidity rod for a gun safe. A member of 3D Printing props is going to use this as a heating element in his heated enclosure. Printed ABS should hold just fine. Measurements are in INCH. However the STL export is in MM. If you're printing this, make sure to get that setting right! This is a quick and dirty markup. Can't try, since I don't own the heater rod. I'll wait to hear back from the guy I designed it for.