[Fixittt]

GTA I think you are making this harder then it needs to be.

here is what you do.

take your design to the machinst. Talk with him. Allow him to make the descisions on O ring. Most machinist have experiance with this sort of thing. Also find a good sorce for O-rings. Once the block is made, take it in and have them fit an O-ring to the block. As for the screws. Defonitly go with a machine screw with fine threads. This will allow you more turns which gives you a better fit. I dont know why, but I think I want to say I used 8-32 screws.


I hope this helps.

Good luck on the endevore.

Also seeing as you are getting a MAJOR favor from the machinist. And trust me it takes alot of time to do these things, you should float hims a good sized TIP in the end.

Fix