Air Gun Adapter 1/4″ NPT To 1/4″ Tube And 1/4″ Compression Fitting 3D Printer Model
The file 'Air Gun Adapter 1/4″ NPT To 1/4″ Tube And 1/4″ Compression Fitting 3D Printer Model' is (stl) file type, size is 130.5KB.
The file 'Air Gun Adapter 1/4″ NPT To 1/4″ Tube And 1/4″ Compression Fitting 3D Printer Model' is (stl) file type, size is 130.5KB.
I didn't have a blow tube for my shop air gun and didn't want to trip down to the store. Made 2 versions, both thread into 1/4" NPT at the end of an air gun. One is friction fit for 1/4" OD copper tubing and the other has 5/16"-24 threads and a relief inside to allow you to use a compression fitting. (While obvious, I will note, you will have to compress the brass fitting onto the copper tube using a metal fitting then take it off the fitting and screw it on here. Plastic is not strong enough to deform the brass.)
I used various files from others to make the threads. In particular I could not find 5/16"-24 so I used a 5/16"-20 and compressed it by about 20% to get the 24 thread pitch. Since I printed these in TPU it was close enough and it screws on easily.
Note: Both are printed in 95 TPU which provides flexibility as they get dropped/dragged around the shop so that they don't crack. Also this provides a little extra forgiveness in the threads. If you print in hard plastic the friction fit one is not going to work.
I printed at .1mm layer height not sure if you really need to especially with TPU as it will flex to match the threads.
| air_gun_adapter_friction_and_compression.stl | 337.6KB |
