Fred Connell
Student Blacksmith
Power Hammer
Whack Whack Calm
   Notes & Photos:
- Power Hammer
- Power Hammer closeup
- Anvil
- Frame
- Hammer
- Dies
- Hammer Track
- Dupont Linkage
- Linkage Compressed
- Clutch
- Clutch Linkage
- Clutch Foot Petal
- Crankshaft
- crankshaft assembled
- Motor & mount
- Dupont Linkage Patent
- Operation Conclusions
- Operating Video .ogg
- Back toBlacksmith

   Other Stuff:
- Rose Engine

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Fred Connell - Blacksmith
Drilling and tapping end of crankshaft

My metal lathe bed is not long enough to allow drilling the hole in the end of the crankshaft. A hole needs to be drilled and tapped to retain the washer to make sure the throwout bearing and disks do not move off the end of the shaft.

I used my wood lathe with a steady rest to drill the hole and tap the 1/4-20 UNC thread in the end of the crankshaft. The chuck has sharp edges so 4 little pieces of aluminum flashing were used to shim the crankshaft and protect the finish.

The crankshaft was turned from a piece of 1.5" shafting material found at the local recycler. The throwout bearing required a 1.375 shaft so that became the standard finish size.

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Rose Engine Rose Engine barleycorn design barley10.jpg 65x65-2.7k