Simple enough, now I've manually prepared the stock.This is a circular pattern of M5 tapped holes and two rows of M5 clearance holes, with counterbore to accommodate a cap head screw. Should be simple enough:
Tools set up, ready to go:
Stock set up and probed:
Go!
Circular path, to cut out the middle rather than turn the hole centre into swarf.
Chamfer the hole:
7mm holes for M8 tap.
Spot drill the hole centres to avoid wandering
Then drill tapping and clearance holes.
Done. Now for some tapping....
Finished - fits nicely.
Done - apart from the tapped holes in the end face that hold it to the baseplate. Nice result.
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