implmex
Diamond
- Joined
- Jun 23, 2002
- Location
- Vancouver BC Canada
Hi michiganbuck:
If you need a REALLY nice hole, like in a mold cavity, you will always put scratches in it if you go down with a sharp cornered tool.
So your comment about putting a radius on the corner is good.
It doesn't need to be big.
But it needs to be able to cut only on the bottom half or three quarters.
If you make it able to cut all the way up to the side of the tool it will booger the sidewalls every time, usually from a chip you picked up that welded itself to the cutting edge.
At least that's what I found.
When you have to manually polish out every last scratch with an abrasive stone, you notice these things in a whole new way.
Cheers
Marcus
www.implant-mechanix.com
www.vancouverwireedm.com
If you need a REALLY nice hole, like in a mold cavity, you will always put scratches in it if you go down with a sharp cornered tool.
So your comment about putting a radius on the corner is good.
It doesn't need to be big.
But it needs to be able to cut only on the bottom half or three quarters.
If you make it able to cut all the way up to the side of the tool it will booger the sidewalls every time, usually from a chip you picked up that welded itself to the cutting edge.
At least that's what I found.
When you have to manually polish out every last scratch with an abrasive stone, you notice these things in a whole new way.
Cheers
Marcus
www.implant-mechanix.com
www.vancouverwireedm.com