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

A parts list.
Machine shop drawings for all the parts: GearMechDrawing.pdf, PanelMechDrawing.pdf, MiscMechDrawing.pdf
SolidWorks files for most of the parts, and for the assembly.
Four sheets of acrylic and all the bits of hardware you'll need.
Assembly instructions.

What To Do For This Assignment

Make the differential gears (small gear: 32 teeth; large gear: 48 teeth). We started this in class.
Make the right panel, based on what you see in the shop drawings.
Add the gears to the RedSheet drawing file and the right panel to the ClearSheet drawing file.
Generate and color the DXF files.
Cut your plastic. (Warning: if you don't do Unite Lines in the laser cutter client, the gears will take much longer to cut.)
Assemble your "pocket transmission" Don't forget to use Loctite.

What to Hand In

Hand in the SLDPRT files for your gears and right panel, and your colored DXF files.
Post a picture of your completed "Pocket Transmission" to Piazza.

Dave Touretzky

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