D3D Universal v20.05 Calculations

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  • 120V edition. For 240V, needs to increase R significantly. Must increase the length of the resistance element 4x or decrease its gauge. P=I^2*R - to keep power same.
  • 8 feet for easy winding in a workshop
  • 850F max temp, good for sleeve rated at 1000F
  • Is on all the time during a print, keeps complexity down. Essentially a PLA + rubber printer for small production.
  • From Nichrome Calculator:



  • Double the length, keeping all else the same.
  • Heater will be 2x strong - so need on/off control as well.
  • Needs thermistor and SSR
  • Thus, 120/240 compatibility means we need to use SSR and thermistor.