Poulan (and others) carburetor adjustment tool 3D for print


 Poulan (and others) carburetor adjustment tool  3d model for 3d printers

 Poulan (and others) carburetor adjustment tool  3d model for 3d printers
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Designer

John Ridley

3d model description

Tool to allow adjustment of carburetor on many small 2 cycle gasoline engines.
My Poulan string trimmer needed a carburetor adjustment. The screws ar...e knurled, recessed, headless things requiring a special tool. Even on eBay they charge $40 for what is basically a cheap screwdriver.

This thing allowed me to make the adjustment. Honestly it didn't print very well, the splines inside are too small to print on my Prusa, so basically I printed a plastic cylinder that meshed with the screw splines well enough. I am leaving the splines in the scad in case someone wants to print this in metal on Shapeways or something, though I would tweak the file a bit before doing that, I think the ID might need to be reduced a bit first and a little taper might be called for. Also if I was getting it printed, I'd probably double the length of the hex shaft - I kept it short here for strength but it's so short that I wound up using pliers to push it in and turn it.

In any case this was good enough to give my weed trimmer carburetor's low speed jet the 1/2 turn it needed to run properly.




Tags

Engine Gasoline Carburetor

License

CC Atribution

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