looking for a custom machinist

[jlamont2020]

I'm in the process of attempting to make a custom air-though piece for my e-tac. I was trying to see if anyone on AO was willing to help me build this piece. The piece is fairly simple to build but requires someone with a milling machine which I no longer have. the drawings I've linked to are huge so I didn't post them on here. The whole assembly is based upon the e-mag battery pack housing and is meant to try to give my e-tac a cleaner macroline look.

http://i252.photobucket.com/albums/hh19/jlamont2020/designs/customair-throughbatteryhousingbott.jpg


http://i252.photobucket.com/albums/hh19/jlamont2020/designs/customair-throughbatteryhousingtop.jpg


Thankz
:cheers:

[michbich]

Don't forget, you can't make inside square corners unless you have a carbon EDM. Good luck with your parts.

http://i413.photobucket.com/albums/pp220/plourde_15/customair-throughbatteryhousingb-1.jpg

http://i413.photobucket.com/albums/pp220/plourde_15/customair-throughbatteryhousingtop.jpg

[jlamont2020]

I'd be fine with the corners not being perfectly square, I had figured with a milling machine they would be rounded corners which would be fine as long as it was a tight fit with the top piece

[FiXeL]

The chamber and island on both parts have to be radiussed just like michbich said, but also make the radius on the edges of the island a tiny bit larger. (if the chamber has radiusses of 1/4") then add 0.005-0.01" to the radius of the island. This will insure you can mill a tight fit without having it jamming in the corners.

[jlamont2020]

if i still had my millin machine i would just make it myself but i got rid of it when i moved (bad idea in retrospect) but at the time i rarely used it. I may just end up buying another cause all the local machine shops wanna charge me a fortune to build these 2 pieces. its a piece of cake to mill is you use 2" diameter aluminum cylinders to start with. for the bottom u find the center line and mill all but 1/2" on both sides of the centerline giving you the basic shape. and you use a 1/8 end mill to carve the inner slot. that would make the inner slot mostly square and ensure a tight fit with the top. then the rest on that piece are all just tap and die.
I'm probably just gonna end up having to build it myself I just need to buy me another mill.