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NCWayne 02-08-2013 20:45:10 69.40.232.132 Report to Moderator	The one I use is also one of the 1 1/4 bar setups, and now that you mention it I think Dad did say once that the mike came from a Kwick-Way setup. Given that he had one of those back then too, I'd just about guarantee you that's where it came from. Too, your right, with it you've got to be sitting in eactly the same spot every time to get an accurate measurement. What style drive head does yours have? This one has the gearbox that's driven by a Milwalkee drill head. If this is what you've got, and you ever have trouble with it, (and haven't figured it out already)you can take a standard head and have the nose of the housing machined to fit the gearbox just like the factory one. Dad did that years ago so we'd have a spare motor to keep in the box after getting halfway through a job, in the middle of nowhere, and it crapping out on him. Talking about press fit bushings, have you ever used any of the Connex spring bushings? The RR's track machinery repair shop turned us on to them years ago when we were doing alot of portable boring work for them. What they always had us do was bore the hole back overized and install a Connex to bring it back to the size they wanted. With them being a spring, you can bore the hole a little larger, or smaller to get the pin clearance you want. Because of that they are a bit forgiving as far as the fit goes when a few thousands over or under don't make alot of difference. Over the years I've used them with good luck Connex [Reply]   [No Email]
algar 02-09-2013 07:38:46 50.32.70.186 Report to Moderator	Re: Portable line boring in reply to NCWayne, 02-08-2013 20:45:10   My unit is a 2020 about 15 yrs old,has the milwaukee drive motor. Do you guys use a bore welder? I don't have enough work for it yet. [Reply]  [No Email]
NCWayne 02-09-2013 21:03:47 69.40.232.132 Report to Moderator	Re: Portable line boring in reply to algar, 02-09-2013 07:38:46   Nah, I've always been the 'bore welder', LOL. For what they cost, like you, we've never had enough work to justify buying one. Too with the heads we've made we've done holes as large as 10 inches plus in diameter, with the largest being the top and bottom bushing holes in a 260 F/A scraper neck. Dad actually made a special setup to do those that included a 4 legged 'spider' to set in the middle of the neck to support the bar and stiffen it enough to do thart large of a hole. Granted when you get that big it's slow cutting as you can't hog into the material, but for the occasional hole it works just fine. I even made one some years back that allowed me to do a blind hole for the RR. In that case I made a setup that had two bearings inline with each other that I could weld to the base metal of the machine. The outer bearing was a smaller ID than the inner and I made a boring bar that had a 1 1/4 end for the drive head and a 1 1/2 end long enough to catch the through hole and the blind hole behind it. Again it was slow cutting and took a bit of time to do it but it saved customer a massive amount of money over what their other repair choice consisted of. That's the kind of 'impossible' jobs Dad and I have always tended to get asked to do. While I enjoy doing the run of the mill jobs that come my way I really like the challenging ones even more. [Reply]  [No Email]