Interesting build for sure. Aluminum is my goto material for end plugs and valve. Usually its 7075T6 as that is readily available. As for valve poppet material I use peek.Marko
Interesting means a lot in the context of 20mm. I was looking again for that build post to check out the construction but didnt see it.I'll have to check out 7075 for later projects. Maybe I need to get peek though to reduce the diameter of this potential poppet.
Mount the tube to your toolpost and milling cutter to the lathe chuck, you can then use the X slide to mill the slot. Marko
Nice progress, and a good example of showing that you don't need the most fancies tools if you want to make something. It's more about the will than the tools. When you have tool, in this case the drillpress that is not so rigid try to take very light cuts and using small endmills.Looking forward of seeing the complete gun. Marko