Bsa B31 Swing Arm, New crankcase bolts and atuds

Making a full set of crankcase studds and bolts, part of the full restoration;

[@paulhewitt1488]

Extremely nice job , the stainless nuts and bolts look a treat. 👍👍

[@retromechanicalengineer]

Great detail Brian.

[@keithgarland3404]

Job done right.

[@Dave.Wilson]

Hi Brian, your making a very nice job of those crank cases. But in the thread turning on the studs, your making the same mistake that I made with the compound slide angle, you have it set at 30deg (27.5deg for Cycle threads). But on those import lathes the markings are the other way round, you have to set them to 60deg (55deg for cycle threads). I found that out the hard way messing up some stainless bar. Hope this helps.

[@500dbd34]

@@Dave.Wilson thanks for the comment Dave, always welcome. My lathe is a Harrison M300 which is not an important and is reading 29 degs on the protractor. I don’t use the compound to advance the cut but go straight in with the cross slide, I take very light cuts and finish with a Die. I have messed up a few studs in the past but found this the best way for good results. I’m not a precision engineer and always open to advice and help from other guys this is what KZbin is all about - sharing knowledge and experience. Thanks again for your comment. Cheers Brian.