GearHeads Forum

If its a spur, you can simple enter a smaller number than .5 in the Width box, that will shrink the tooth thickness..

Art

I also notice the difference between the tooth thickness of the STL and the printed gear.
The printed gear is not only larger, the teeth are thick.
Is there a way to adjust the tooth thickness?  Make then thin so when the printer expands them they turn out right?

Hi:

  no, the stl should have no hole in it. Ive printed dozens and all were fine.

As to fitting, you'll probably find, like I did, that youll need a specific scale factor
to make a gear come out to the right size. 3D printers arent good at proper size
reproduction. I scale mine to .95 for example and then things fit.. Each machiuen is likely
different and likely different with each material type used in the print as well.

Art

I've designed a spur gear system in GM
I used GT to open the system and export the gears to STL
I opened the STL files in the Cubex Printer Driver.  It looks good at this point.  The shaft part is a hole.
I tell the printer driver to build the print (Slice the STL) and it builds a gear with a filled hole.
Is there a thin layer I can't see covering the hole in the STL file? ( I drilled some holes after the print)
Also, the gears seem too big or the wheel is too small - the parts can't assemble