hdwarner Posted April 13, 2008 Share Posted April 13, 2008 you know you are a machinist and you insist that your 170 pound mousehole is flat within .oo1 thousands of an inch and the surface finish is borderline chrome . the things i do with my time to amuse myself !!!!!!!!!!!!!!!!!!!!!!!!!! Link to comment Share on other sites More sharing options...
steveh Posted April 13, 2008 Share Posted April 13, 2008 did you have to take it down very much? Link to comment Share on other sites More sharing options...
hdwarner Posted April 13, 2008 Author Share Posted April 13, 2008 i measuerd the swayback to be about .045 to .125 near the edge i took down about .075 {a little over a 1/16} it did not harm the integrity of the steel one bit and it was fun to do Link to comment Share on other sites More sharing options...
cwilliams Posted April 14, 2008 Share Posted April 14, 2008 HDWarner You are a true Machinists geek, and I mean that in the best way. I have been meaning to do that to my old Peter Wright anvil for awhile, as it was very abused in its former life and my bridgeport is looking lonely. Chris Link to comment Share on other sites More sharing options...
ThomasPowers Posted April 14, 2008 Share Posted April 14, 2008 Many old anvils *never* had the face parallel to the bottom so the first step to machining the face is to true the bottom to it and then flip it over and just kiss the face. (You don't care if you lose more bottom material) I have seen a number of anvils where they machined *through* the steel face at one end trying to true it to the bottom, basically wrecking the anvil. You already are aware of the face thickness issue: at the March SWABA-South "anvil repair" meeting about 6 hours was spent building up the face of an anvil that had been machined too thin; but was gloriously flat and *shiny*. Link to comment Share on other sites More sharing options...
hdwarner Posted April 14, 2008 Author Share Posted April 14, 2008 yes that is what i did, i machined the bottom paralel to top then flipped over and skimmed the minumum off the face , and it was out of paralel WAY OUT about .234 machining and measuring i am pretty good at but blacksmithing i SUCK but i am very attracted to the science and art of it Link to comment Share on other sites More sharing options...
ThomasPowers Posted April 14, 2008 Share Posted April 14, 2008 You are a veritable Saint of a machinist! Don't know how many times I have seen anvils butchered by folks just wanting to mill the thing flat... Now the next thing you need to get is an 1800's worn shilling as that was the tolerance the old blacksmith machinists of that time period could hold---from one of the early steam fellows griping about the problem getting good cylinders bored. Link to comment Share on other sites More sharing options...
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