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how to adjust ToolBOx internal spur gear minimum teeth


New member

I currently designing a simple motor gear with a driven gear attached.. i used the default gears at the toolbox and make a Spur gear with a 14 teeth.. But when i make a Internal Spur gear the minimum teeth is just 24 .. so now i ant math the teeth of both gear together..

i tough that the internal spur gear can adopt to the standard spur gear the toolbox.
Is there any easy way to make it rather than using a spline??