Shopvac hole saw dust shoe
thingiverse
This is a quick dust shoe or collar to go on a shop vac to suck up dust when using a hole saw. up to 3.5 inch dia. This may need to be resized so the nozzle fits a different size shop vac hose then the one i have which is 32mm. If printed so that its standing up on the nozzle end it seems to print ok with out any supports.
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