rons
Diamond
- Joined
- Mar 5, 2009
- Location
- California, USA
Finding the center of a .752 square bar.
Using a Fisher edge finder the position to the furthest vise edge is cranked.
The table is locked and the crank is turned the opposite way to move the position from the vise end and out to the center position.
Center point drill, drill tap hole, tap.
Result is not centered so good.
Edge finding on the work piece was not done because the edge finder leaves a indentation.
Some new way I am ready to try...
The bar happens to have a center bored .375 hole.
I set the bar vertical with the hole facing up.
Insert a .375 bar into a collet, blue the bar, then draw the var into the hole below. Adjust/re-blue until bluing is evenly wiped away.
Then rotate the bar 90 degrees and drill/tap hole.
Question is: edging on a vise edge and reversing direction any good?
Using a Fisher edge finder the position to the furthest vise edge is cranked.
The table is locked and the crank is turned the opposite way to move the position from the vise end and out to the center position.
Center point drill, drill tap hole, tap.
Result is not centered so good.
Edge finding on the work piece was not done because the edge finder leaves a indentation.
Some new way I am ready to try...
The bar happens to have a center bored .375 hole.
I set the bar vertical with the hole facing up.
Insert a .375 bar into a collet, blue the bar, then draw the var into the hole below. Adjust/re-blue until bluing is evenly wiped away.
Then rotate the bar 90 degrees and drill/tap hole.
Question is: edging on a vise edge and reversing direction any good?