Plastic Welding Gun (Plastruder MK4)
thingiverse
Revitalize your unused MK4 by transforming it into a handheld welding tool for fixing holes and broken plastic parts. See how I securely shut a teapot's lid using this DIY method. The STL files include designs for a hand grip, finger guard, and trigger bracket. SolidWorks 2010 model files are also available. To assemble, print the components, attach the finger guard to the hand grip, slide the grip over the DC motor, secure it with an M3x15 screw and nut, insert a 1/4 in. push button into the trigger guard, solder wires accordingly, and connect the thermistor and heater wires to the extruder controller. In ReplicatorG, set the temperature to 220C, control extrusion with the trigger button, but ensure the nozzle is fully heated before operating the motor.
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