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You may want to consider ball bearings for the crankshaft as they will reduce friction greatly which is critical in LTD Stirlings.
Bill & Marv: It's not as bad as it looks. Jan is using a point contact for the bearings:The ends of the axle are pointed (60 deg included). It is then supported in set screws that have been spot drilled (90 deg included). The set screws in each post adjust the load/clearance. So theoretically there is a point contact for rotation. I think this is used in clocks and watches? It should work OK??Mike: Great to hear you are bringing along a young machinist. It'll be a real advantage for his engineering career. Are you doing a build log?Thanks.Hugh
I've been slowed down. I need to make some tool holders for the Sherline Mill. For a CNC mill I need several holders in various sizes. SO, I'm trying to become friends with the Sherline CNC Lathe. I need to bore, groove and thread to fit the Sherline spindle. Then mount on the spindle and ream for specific tooling (1/4" & 1/8"). Might as well learn enough to make them on the Sherline CNC lathe since I need several.