Price sounds reasonable to me. Tapping 40 each 4-40's that deep in to a closed hole is the killer. If I still had my old Bridgeport J and was NC'ed Your looking at say 1 hour to program, 10 minutes to mount in a vice and get aligned, drill 40 each #44 or #43 holes would be easy, but then slow things down, cross fingers and start tapping.
Doing it by hand, at 1/2 deep those holes better be close to "perfectly" aligned. On Thu, May 18, 2017 at 9:54 AM, <[email protected]> wrote: > Hi, > > I have a square aluminum tube 5" X 5" with a .25" wall it's 8 1/2" long. > > I need 20 holes in each end tapped for 4/40 and 1/2" deep. > > This is for a Rubidium project. > > The local machine shop want's $360.00!!!! > > Anyone have a machining setup that could do the work a bit cheaper? > > If not I'll give it a try myself. > > Please contact me off list. > > Thanks! > > Corby Dawson > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
