In this episode, I’ll be continuing the work on the crankcase by making the cover for the accessory end of the engine.
First operation, face milling the top:
Spotting and drilling the hole pattern:
Roughing the contour:
Milling the counter bores:
And an edge break around the contour with the spot drill:
First side finished:
I decided to make the gear cover as well, as I can use the same tools and similar set ups.
Again, first step was a face cut:
Spotting and drilling:
Milling the relief for the screw heads:
First side of the gear cover done:
A set of machinable soft jaws were installed in the vise and milled out for the second side operation.
Second side of the cover finished, still in the vise:
Another pocket was milled out in the soft jaws to finish the second side of the gear cover.
The finished parts:
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