A quick look at my first experience with Gearotic Thoughts and my 3D printer over this past weekend.
Basic straight tooth bevel gears were produced in the software. These were exported (*.STL) to my CAD software which brings in a mesh of lines representing the triangle vertices'. All of the vertices' were deleted except those defining one tooth. A new tooth was then lofted and copied/rotated as needed. The rest of the gear body was imported from a larger model and added to the new teeth which produced the first image below. (the larger gear is 72 teeth, 16-DP, O.D. 4.625-in while the smaller is 28 teeth, O.D. 1.875-in).
In this project it was important to keep the center bore of the smaller (in this case the driven gear) open so that a large bundle of wires and air tubes can pass through. To facilitate this, a pair of large diameter thin cross section bearings are used to mount the driven gear around its outside.
![Image](http://nikita.argia.net/kmaxon/q_nerp_part_bevel_assy1.png)
Off to the 3D printer and then a test fit onto the machined delrin support ring...
![Image](http://nikita.argia.net/kmaxon/q40_134_003083.jpg)
A quick check fit to check the mating with the driven gear propped up on an eraser...
![Image](http://nikita.argia.net/kmaxon/q40_134_003136.jpg)
Looking at the back side of the smaller bevel gear nestled in its bearing mounts...
![Image](http://nikita.argia.net/kmaxon/q40_134_002949.jpg)
A test mating with appropriate fabricated support components...
![Image](http://nikita.argia.net/kmaxon/q40_134_003169.jpg)
I couldn't be happier with how smoothly this assembly functions. Thank you for the great first Gearotic experience.