Two-Speed Manual Transmission Model

In this assignment we're going to construct a simplified model of a manual transmission. First, here's a little video to explain how manual transmissions work:

Simplified Model

We're going to use a simplified model that has only two speeds and one collar ("dog clutch"):

Here is the model in SolidWorks:


Here's a video of the model in action:

What You're Given For This Assignment

What To Do For This Assignment

  1. Make the differential gears (small gear: 32 teeth; large gear: 48 teeth). We started this in class.

  2. Make the right panel, based on what you see in the shop drawings.

  3. Add the gears to the RedSheet drawing file and the right panel to the ClearSheet drawing file.

  4. Generate and color the DXF files.

  5. Cut your plastic. (Warning: if you don't do Unite Lines in the laser cutter client, the gears will take much longer to cut.)

  6. Assemble your "pocket transmission" Don't forget to use Loctite.

What to Hand In

Dave Touretzky
Last modified: Sun Oct 16 04:24:34 EDT 2016