Libro-Struder

thingiverse

The Pulsar-Adapter is a revolutionary 3d printer extruder created at the Oakwood City-Municipal Library District. It's an original design but forms part of the Reboot Project, however it's primarily designed to serve all your filament-pushing requirements in one package. Unlike traditional extruders, The Pulsar-Adapter uses gripping friction forces that result from rubbing against plastic rather than toothed-gear biting forces. This allows for much smoother performance and eliminates problems associated with jamming and slipping commonly found on Wade or Bowden-type extruders. Also, this design enables you to construct the device using fewer specialized parts. A significant aspect of The Pulsar-Adapter is its unique application of separated pop rivets as mini bushings positioned around shafts. To date, the current model still needs a stepper motor with an attached orbital gearbox for proper function. I have been able to successfully implement this with a Nema 17 stepper using a 27:1 gearbox #HS19-1684S-PG27, though hackers are encouraged to make their own customized gearboxes :-). This groundbreaking device is the work of Chris Anderson, Library Engineer. Components: A Nema 17 motor The gearbox is # HS19-1684S-PG27 four screws measuring M3x8mm each an M4 fitting that requires pushing pneumatic into nylon tubing of 4 mm in diameter eighteen gauge steel wire with a length of three inches. 22 metal pop rivets, half-inch long by a quarter inch in diameter and a eighth-inch thick. A M5 nut A set screw M5 measuring a quarter-inch in thickness 3D-Printed Components: MotorSphere UpperLayer BigTooth IOBox eleven small gears MountForTheMotor