I occasionally need to reduce the OD of shim washers. ordinarily If the inside Diameter is large enough I could simply chuck on the ID with a small 4 inch diameter 3 jaw chuck in the clutches of the 14 inch diameter chuck on my smaller Leblond lathe. However with so much of my stuff packed away for our move I couldn't lay my hands on the little used 4" chuck.
I needed to turn the OD of a couple of .062" thick 1.625" ID shim washers.
I had a 1 1/2" bolt laying around with 2 nuts so I tapered one side of each nut then chucked the bolt with 1 of the nuts screwed on leaving enough so the washers and outer nut could be screwed in place. This worked just fine since I didn't need a perfect concentric ID to OD
Paul using a mandrel like this when only doing 1 washer at a time of any ID that can be confined on the taper you can use a piece of tubing against the face and the outer nut to hold it . As long as the tube has been machined true to both ends a decent concentric ID to OD can be expected
Yes Sir, Fine idea and may have to use it...seems I'm always hunting through the used washer tin to find something that's not quite what I need. Very Cool Frank, Thank You. ~PJ
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