Replacement heated bed for Emaker Huxley

thingiverse

Addressing the design flaws in Emaker Huxley's heated beds, the owner has designed a replacement bed for their printer, despite already ordering ReprapPro Huxley's PCB bed. The new drop-in replacement bed features a larger build area and ensures actual printing of the 140mm x 140mm space. To determine the resistor needed, the power wattage for the bed is first calculated at 90-100W, considering the Emaker Huxley's power adapter is only rated at 120W (19V). Using Ohm's law, a resistance of 4ohms was derived. The owner decided to use six 15W resistors for more even heat distribution, although four 25W resistors would also work. High-temperature hook up wires and original thermistors from the kit are purchased. The bed is hand cut from 3mm aluminum using a PDF template, with laser or waterjet cutting being an alternative option. Drilling and countersinking holes for screws follow. A total of 15 screws (M2x8mm and M3x35mm) are required, with thermal paste applied to the resistors during assembly. Initial testing shows the bed can heat from room temperature to 120C in about 15 minutes, ensuring successful printing projects.