"Wes" wrote in message
...
"Tom Gardner" wrote:

I did 18 mill operations in less than 2 hours including set-up time. This
by changing the way I do my drawings and visualizing all the operations
with
the thoughts of reducing set-ups, minimizing tool changes, laying out the
tools and parts and figuring the correct order of events.

[snippage]

I'm probably not the only guy that gets part way through something and
change how I process things as I figure out a better way to do the job.
Maybe some day I'll consistently get it right from the start.

Wes

Having worked from prints for what seems my entire life, it wasn't uncommon
for me to redraw (on scratch paper) and re-dimension parts so they were
meaningful in the way they'd be made. No changes were introduced, just
dimensions provided in a way that was useful. By working to nominal
dimensions at all times, you are able to use any portion of a machined piece
as the datum point. That's important when you start changing reference
points.

Harold