Tutorial how to make engine part 15

Crankshaft endpoints connecting parts
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Step 1:
draw shown sketch
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Step 2:
extrude the sketch 60mm
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Step 3:
open a sketch on the body and draw shown circles
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Step 4:
cut the body
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Step 5:
draw a 30mm radiused circle like this and use cut extrude command
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Step 6:
open a sketch on the blue surface
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Step 7:
draw shown two circles and centerline
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Step 8:
use cut revolve command. that is all for now