- Joined
- Feb 14, 2013
- Messages
- 23
I am starting to get familiar with my SG and seeking some advice on skills that used to be learned on the shop floor from more experienced c0-workers.
When I put a new job on the chuck, I need to test the surface for the high point.
This seems to take forever as I move the wheel head randomly over the job slowly dropping the head to achieve first contact.
What do the experts do ?
Is it beneficial to start with a stationary wheel, or a wheel slowly rotating (I have a VSD) ?
Is a shim stock like paper or plastic film inserted between the job and the wheel useful ?
It is annoying when the last pass on a two-sided job requires the job to be slid off the chuck, scratching the bottom side.
I know, it doesn't matter, but how can I minimize it ?
Would thin plastic film, or other material, minimize the risk of this ?
The stepover percentage that should be used is a mystery to me ?
What are the trade-offs for large versus small stepover ?, as related to cut and finish ?
If I take the job off the chuck for measurement then replaced, the next cut is always more than I expected.
I have made special effort to clean everything to no avail.
Is it me or a characteristic of the process ?
What is it about me or the process that must be improved ?
Or is it just a fact of life ?
Is there a reference book available online that deals with this type of practical skill ?
Regards from sweltering Sydney,
John
When I put a new job on the chuck, I need to test the surface for the high point.
This seems to take forever as I move the wheel head randomly over the job slowly dropping the head to achieve first contact.
What do the experts do ?
Is it beneficial to start with a stationary wheel, or a wheel slowly rotating (I have a VSD) ?
Is a shim stock like paper or plastic film inserted between the job and the wheel useful ?
It is annoying when the last pass on a two-sided job requires the job to be slid off the chuck, scratching the bottom side.
I know, it doesn't matter, but how can I minimize it ?
Would thin plastic film, or other material, minimize the risk of this ?
The stepover percentage that should be used is a mystery to me ?
What are the trade-offs for large versus small stepover ?, as related to cut and finish ?
If I take the job off the chuck for measurement then replaced, the next cut is always more than I expected.
I have made special effort to clean everything to no avail.
Is it me or a characteristic of the process ?
What is it about me or the process that must be improved ?
Or is it just a fact of life ?
Is there a reference book available online that deals with this type of practical skill ?
Regards from sweltering Sydney,
John