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Neidrauer Adventures Photo Album » Building a Live Steam Locomotive - the Mikado Project » Section 11 - Valve Gear
ReplacementTumblingShaft23June10 002 TumblingShaftFinishing31Jan09 005 TumblingShaftFinishing31Jan09 004 TumblingShaftFinishing31Jan09 003 TumblingShaftFinishing31Jan09 002 TumblingShaftFinishing31Jan09 001 TumblingShaftFixtureFabrication24Jan09 006 TumblingShaftFixtureFabrication24Jan09 005 TumblingShaftFixtureFabrication24Jan09 004 TumblingShaftFixtureFabrication24Jan09 003 TumblingShaftFixtureFabrication24Jan09 002 TumblingShaftFixtureFabrication21Jan09 013 TumblingShaftFixtureFabrication21Jan09 011 TumblingShaftFixtureFabrication21Jan09 002 LinkBoltsFinished23Jan09 ANewFixedJawForTheVice19Jan09 002 ANewFixedJawForTheVice19Jan09 001 FinshedLinkage19Jan09 003 FinshedLinkage19Jan09 002 FinshedLinkage19Jan09 001
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ExhibitPlus TumblingShaftFixtureFabrication24Jan09 002
The Tumbling Shaft bending jig needs to hold the bar ends in place during the bending operation. We will use two 4" blocks of steel, drilled and reamed to a close fit for the shaft to go through, which will be bolted to the bending jig. The idea is to hold the ends in line but allow the shaft to slide a bit to accomodate the bend. In order to make two blocks with holes which are at the same height, we will drill and bore the holes in the lathe, then cut the bottom of the blocks in the mill to make the centerlines the same. The holes are not on center in the blocks, they don't need to be. Using the wiggler in a punch mark and a dial indicator, we adjust the 4-jaw chuck until there is no runout indicated on the dial.

ReplacementTumblingShaft23June10 002 TumblingShaftFinishing31Jan09 005 TumblingShaftFinishing31Jan09 004 TumblingShaftFinishing31Jan09 003 TumblingShaftFinishing31Jan09 002 TumblingShaftFinishing31Jan09 001 TumblingShaftFixtureFabrication24Jan09 006 TumblingShaftFixtureFabrication24Jan09 005 TumblingShaftFixtureFabrication24Jan09 004 TumblingShaftFixtureFabrication24Jan09 003 TumblingShaftFixtureFabrication24Jan09 002 TumblingShaftFixtureFabrication21Jan09 013 TumblingShaftFixtureFabrication21Jan09 011 TumblingShaftFixtureFabrication21Jan09 002 LinkBoltsFinished23Jan09 ANewFixedJawForTheVice19Jan09 002 ANewFixedJawForTheVice19Jan09 001 FinshedLinkage19Jan09 003 FinshedLinkage19Jan09 002 FinshedLinkage19Jan09 001
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