Rounding of an edge

[outlaw paintbal]

Hey guys fist of i would like to introduce myself my name is Chris Shaffer and i am a owner/opperater of a paintball field and store in Austin Texas. I have gottin into milling because alot of my coustomers are looking for a good place to get mill work done. I have a Harbor freight mini mill that i have been doing work with. http://www.harborfreight.com/cpi/cta...emnumber=44991 that's the mill i have.I have some milling under my belt like this



I am trying to get the back part of the marker rounded like this its i nice smooth curve that i have no idea how to do.



what tools do i need to get this kind of thing done?

Here is what i have to work with

1)Harbor Freight Mini Mill
2)3in screewless vice
3)thin Parallels
3) (1/4)(5/16)(1/2) end mills

What tools do i need to add to my collection, and where is the best place to get them.What is the best way to get the nice smooth and rounded look?

[WhiteTiger]

If this is just a one of a kind job get a ball endmill and scribe the arc on your end cut, then by eyeball take stepped cuts along the profile. Finish it up by knocking down the peaks with a hand file then even everything up with emerycloth strip.

For small scale production of a similar arc I'd suggest a formed cutter. I used a 1/2" radius formed cutter to make .45 slides and comp body blanks.

I always dealt with MSC (www.mscdirect) for most of my stuff, as it saved hunting all over for a piece here and a piece there. About the only thing I didn't get from MSC was raw materials, since I had a couple of very good local suppliers for small quantities.


Tiger

[outlaw paintbal]

I will be doing a good number of these where is the formed cutter i have serched for formed cutter on the page you gave me and got nothing can you post a link?

[WhiteTiger]

Here is a place to start. Not all of them are on that one catalog page. check a couple pages or so both sides of this starting point.

EDIT- Hmm... just had a browse and they are all on the one page. Used to be about three pages of the things.

Tiger

[outlaw paintbal]

Thanks, I dont know why i could not come up with that myself