Carburator choke control (for Tecumseh)

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Summary I'm not sure how useful this project will be for most people, but it's too good to pass up. Someone decided to use my snowblower as a stepstool, which broke off the choke shaft right at the carburetor. Last winter was a real challenge, as I had to hold my hand over the intake to get it started every time. This year is different, thanks to my 3D printer. Building this part turned out to be more interesting and challenging than expected. The odd-shaped cam required some creative problem-solving - I had to push it through a piece of paper, trace its shape, scan it, and then re-trace the scan in Blender. It was a real test of patience. Instructions I printed this part in white PLA on MakerBot's high-res setting. For best results, use PLA or Nylon; ABS is not recommended because it reacts more strongly to solvents like gasoline. The built-in rafts in the STL file should provide all the support material needed.