/TipTapMotor

Modular 3d-printed torque controllable BLDC actuator. 8:1 planetary gearbox. 47x47 x47mm, ~$74 per actuator.

MIT LicenseMIT

TipTapMotor

Print one of each STL, except for:

  • "GearBoxAssy-Planet.STL", which needs a total of three.
  • "SingleMotorPCBspacer.STL", which is optional, but needs a total of two. Note: I used the LulzbotMini_TipTap.curaprofile on my lulzbot mini to get the tight tolerances needed on the gears and good first layer resolution.

Purchased Parts:

  • Qty 1. DirectServo pcb: https://github.com/DarrenLevine/DirectServo/tree/master/Manufacturing
  • Qty 3. 18-8 Stainless Steel Dowel Pin, 1mm Diameter, 12mm Length (hammered into the three holes of the "GearboxFace-LowerInner.STL")
  • Qty 15. 96817A156 Thread Forming Screw for Thin Plastic
  • Qty 1. iPower GBM3506H-130T Gimbal Brushless Motor
  • Qty 4. M3x10mm Nylon bolt and nut (for PCB mounting)
  • Qty 2. M3x6mm Nylon bolt and nut (for motor mounting)
  • Qty 1. 6705 Thin Section Metric Ball Bearing Open 25x32x4
  • Qty 3. 623ZZ 3mm x 10mm x 4mm Shielded Deep Groove Precision Ball Bearings
  • Qty 3. Flat Head Screws M3 x 0.5 mm Thread, 6 mm Long (91420A116)
  • Qty 1. Small diametric encoder magnet such as: https://www.kjmagnetics.com/proddetail.asp?prod=d82dia

Assembly according to cross section:

Cross_section_labeled

Final product: