Step 4: Sanding and fitting together the air chamber

Sand down the parts until they fit together like in the pictures.
You will also have to remove the inter thread of the union part that screws with tube and outer ring, unless you can get an unthreaded one.
Glue the two parts together using PVC glue.

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Bio: A tinker since the cradle, I love looking at things and trying to figure out how they work and the best way to mod them
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