My previous attempt at building a heated build surface seemed like a success. Then Nophead came along and demonstrated beautiful results with his Kapton/high-temp approach (>100 C) which immediately made my work obsolete. I couldn’t easily achieve temperatures that high without moving to higher voltages, which would then necessitate a redesign of my controller.
This time around, I’m trying the off-the-shelf approach:
- 4×4 flexible silicone rubber heater, 115VAC, with pressure sensitive adhesive on one side, ~$30
- Commercial PID temperature controller, $42
- Type-K thermocouple, ~$6
It’s not the cheapest approach, but it should be a pretty simple system to get up and running, and produce more than enough heat for any printing scenario.
I haven’t yet tried the Auber Instruments controller, but if it works, $40 for PID control seems like a great deal. For the baristas out there, they also sell a kit to upgrade your high-end espresso machine to PID temperature control — awesome!