Modified Enclosure Heater

thingiverse

Re-designed to fit the following parts I ordered from Amazon: AC Infinity AXIAL 1225, Quiet Muffin Fan, 120V AC 120mm x 25mm Low Speed PTC Air Heater PTC Ceramic Air Heater, 110V 200W/300W Insulated PTC Ceramic Aluminum Tube Air Heater Heating Element For the controller I used the bayite Temperature Controller BTC201 10A Dual Pre-Wired Digital Outlet Thermostat Plug. I also purchased the AC Infinity, Fan Speed Controller for 100 to 125V AC Axial Muffin Cooling Fans in case I needed it, but the heater works well in my large printer without it and I used it on a different project. I attached the heating element to the Heater Top part. I then screwed the Heater Bottom onto the underside of my enclosure and attached the fan with M3 screws. I then joined the 2 parts with superglue (I know, I know. I was keeping things simple because I was in a hurry.... I should have designed in screws to make disassembly possible). I routed the heater cord to the temperature controller and the fan cord to the surge protector. The fan always runs, just the heater cycles on and off as needed. I know you Arduinerds could create a much more compact and elegant controller solution, but I'm not that technologically advanced. As a test, I ran just the heater up to 65 degrees Celsius, but in use I haven't set it over 55 degrees. The controller holds it within 2 degrees at that temperature. It has higher swings at lower temps; at 45 degrees it goes 5 degrees high and 2 degrees low. I've included step files to more easily modify the parts.