43.3:1 Compound Planetary Gearbox For Robotic Arm Project! 3D Printer Model

License: CC0
File formats: stl
Download type: zip
Size:45.3MB

The file '43.3:1 Compound Planetary Gearbox For Robotic Arm Project! 3D Printer Model' is (stl) file type, size is 45.3MB.

Summary

Updates!

4/27/17-Made another version of this with a higher gear ratio.
https://youtu.be/8H3fbxzmF9w

Where's Everything Else???

  • This gearbox has an newer, nearly identical twin, with the same form factor and different gear ratio, it can be found in the collection
    https://www.thingiverse.com/Gear_Down_For_What/collections/robotic-arm
    In This Collection you will find:
    • All other related parts for this project
    • Future Updates to this Project
    • All User Submitted Remix's
    • Click that watch button to get notifications on future uploads!

Assembly

Align the planet gears in order as shown in the main picture, insert a sun gear, Snap Ring Gear #1 on, Inset all sun Gears, snap the other 2 or 3 ring gears on, also, you will need to close the gap in the rings before you spin this gear set or else it could skip teeth and get out of alignment, for this i have included the ring closures, that fits over all the rings

Compatibility

  • This Gearbox is 100% compatible with the Robotic Arm Project!
  • This Gearbox can be used in any application that the 66:1 Gearbox is used in, because the outside of the rings gears, and the width of the ring gears are identical.
  • Do not mix and match gears between this Gearbox and the 66:1.

How it works

  • When you rotate the one piece sun gear, The Planet gears orbit that gear, when the Planet Gears make a full 360 Degree rotation around the Sun Gears, Ring Gear #2 and Ring Gear #4 will move 27.7 Degrees, ( 2 Teeth)

  • The other important thing to realize here is that Ring Gears #1 & #3 will be at the same potential and Ring Gear #2 & Ring Gear #4 will be at the same potential

  • The use of Ring Gear #4, the 4 Module Planet Gears, and Sun Gear #4 is optional and used to increase the amount of torque this gearbox can transfer, as well as to decrease the amount of load on each gear, think of it like a door hinge.

Other Important Info:

CAD Files??

The most recent version of this project can be downloaded in lots of different formats from this link: http://a360.co/2wW8PDX

Show Your Work!
  • Make a "make" and show everyone what you made! (make? :0) Everyone will thank you for it!

For More Cool Projects and Upgrades, Don't forget to Follow Me on Thingiverse and Subscribe to my Youtube Channel

Gear Down For What?

3_Module_Planet_Gears.stl 172.3MB
4_Module_Planet_Gears.stl 235.7MB
Not_For_Robotic_Arm_Project.stl 15.9MB
One_Peice_Sun_Gear.stl 19.4MB
Ring_Closures_For_Testing.stl 446.0KB
Ring_Gear_1.stl 11.2MB
Ring_Gear_2.stl 9.4MB
Ring_Gear_3.stl 11.2MB
Ring_Gear_4.stl 9.5MB
Sun_Gear_4.stl 11.6MB