On 2/18/2017 at 11:24 AM, Ron Altier said:

 Someone explain negative rake for me.  Thanks

 

 

Rake it the angle of the lead edge of the cutting tool  it can be neutral, positive, or negative.

 The choice in the machine tool world is one  dictated by the  materials being cut and what one is cutting with.  In the wood shop a Positive rake often ends up on the   saw blades.  On the lathe a positive rake can cause the tool to over-feed and jam. Hence the position of the rouge which  has a positive rake the way it's usually held also calls for the thing to be rotated and often riding  the bevel 

 

On 2/21/2017 at 5:29 PM, Cliff said:

The choice in the machine tool world is one  dictated by the  materials being cut and what one is cutting with.  In the wood shop a Positive rake often ends up on the   saw blades. 

Unless it's a radial arm saw... Then you need a neg rake so the 

saw doesn't grab and pull it's self into the wood. Also a swing 

saw uses Neg rake.