Heater for SLA 3D Printer

thingiverse

Heating your SLA 3D Printer/Resin to about 86°F (30C) will give much more consistent results and many fewer failed prints. Some resins, such as Siraya Tenacious and Dragon Metal, will not work at lower temperatures. This heater case provides an easy way to attach the heater with Velcro while keeping the spacing within the printer fixed. The total system is a 100W resistive heater powered by a 12V power supply (15W) and a low-cost temperature controller. The heater is wired through the temperature controller relay, while the heater fan is directly connected to the power supply so it remains on all of the time. Modifications to PTC 12v Heater Case for EPAX X1: 1. The "holding tabs" in the heater case were modified to better match the "slots" on the heater fan. 2. A temperature controller with an acrylic case was added (Amazon): https://www.amazon.com/gp/product/B07WLTR1R4/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&th=1 3. The temperature controller case was modified by adding a "short side" with 8mm x 2mm neodymium magnets, which were glued in with epoxy so they stick to the steel side of the 3D printer. Wiring the heater and temperature controller is straightforward. I wired the fan to be ON all of the time to prevent hot spots from forming. The temperature sensor was placed as far away from the heater as possible and near the resin vat. To avoid drilling a hole in the case for wiring, most of the wires fit into the space between the base and the bottom of the cover when it is closed.