The J-Head Lite V2.1 Ultimate Economy RepRap 3D Printer Hot End

thingiverse

As innovative as it is affordable, The J-Head Lite V2.1 is now more Bowden compatible. It has a removable upper portion of the liner, so that it can be used in either a direct drive or bowden configuration. Specifically designed for 1.75mm filament, This design extrudes PLA and ABS, as well as many other plastics. The extruder can heat up to 250C. It sports the Honeywell 100K ohm thermistor for accurate temperature readings. Overall length is about 2.6" and weight is 1.2 ounces. Setup: You need to change the thermistor settings in your firmware: define TEMP_SENSOR_0 1 to... define TEMP_SENSOR_0 7 These PID settings are a good place to start: define PID_INTEGRAL_DRIVE_MAX 15 define PID_PGAIN 2560 define PID_IGAIN 64 define PID_DGAIN 4096 Material: PTFE wire sleeving (McMaster-Carr # 5335K13) Brass nozzle (McMaster-Carr # 8952K33) M6x1 stainless steal barrel (McMaster-Carr # 90024A461) Brass nut (McMaster-Carr # 90690A047) Vishay 6.8ohm resistor (Digikey # RWMA-6.8CT-ND) Honeywell 100k thermistor (Digikey # 480-3135-ND) Ceramic insulation (Cotronics # 390-42M) Aluminum heater block (Clinton Aluminum .375"X.5" 6061) Heat Resistant Wiring (Harbour Industrial # M22759/16-22-9) Copper Heat Sink (Elkhart Products Corporation # 10030626) FEP heat shrink tubing (Zoro Industrial Supplies # G2761595) 3mm PTFE tubing (Fluorotherm Polymers) 1/2" PTFE rod (Piedmont Plastics) 1/4" Oak mounting plate (Lowes) For sale: http://www.ebay.com/itm/The-J-Head-Lite-V2-1-Ultimate-Economy-RepRap-3D-Printer-Hot-End-/261607085522? Instructions Insert the 2mm rod into the PTFE tube (not all the way or it'll get stuck). This will ensure that the PTFE is threaded properly. Thread the first nut onto the tube. Add the second nut to back up the first. Remove the metal rod.