Turning a new piston head.
Drilling...I tapped it #10-32
Setting the compound to 45 degrees.
Turning a stem on the piston. When I make the MkIII (very soon) I'll make this and the corresponding hole in the cup larger in diameter and from steel rather than aluminum.
Turning the taper.
Cutting it off a bit long.
Because I'm making a conical countersunk washer I then had to bore it out. There are other better ways to do this but this is where I ended up at the time.
Countersunk for a #10-32 FHSCS
Mounted on a mandrel.
The waste removed.
Fits!
Already I can tell the aluminum isn't up to the task...
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