pic: Single Speed Gearbox Iterations

[Andrew Remmers]

What size wheel does it drive to get that speed?

- Andrew

[Richard Wallace]

Originally Posted by Joyride_67_1902

What size wheel does it drive to get that speed?

I'm guessing a 4" wheel, directly driven by the gearbox output, at full (normal) load CIM speed (4320 RPM according to the CIM data sheet) -- so ( 4320 / 5.74 / 60 ) * pi()/3 is about 13 ft/sec. Free speed would be faster, about 16 ft/sec.

[rcmolloy]

Richard pretty much clarified everything up from a technical standpoint. I still can't believe he grabbed that much from the crowded drawing. Thanks for clarifying up the math. I felt like I was a bit off somewhere haha.

It's a 2 cim box if you can make out the mounting holes that are perpendicular to the plane that the intermediate shaft and pinions are sitting on. I'm sure the cims will stay in that orientation as of right now but that may change with another iteration down the line.

The gearbox was created because of bordom and my want to increase my design ability. AdamHeard and I are really working close on honing in my design skills this year and I just decided to start throwing stuff at him to check out. This box wasn't terribly difficult to make but it still helps me since this is the first 2D layout that I have pretty much completed up to 90%.

[Richard Wallace]

Originally Posted by rcmolloy

...this is the first 2D layout that I have pretty much completed up to 90%.

Nice job.

Keep throwing stuff at Adam Heard, you will get really good at this.