Re: [ATM] Ronchi profile technique

["Jerry" <wa4guu@verizon.net>]

I'm not sure I understand the question. 

This is what I mean about it being easier to do than to say, at least for
me. When I say the band represents the profile, I mean relative to the
proper bend of the band, or if not the proper amount of correction, at least
smooth the curve of the band. Which would be something like )  

If you had that hole in the middle and say another low zone or two and then
the tde, you could look at the left side of that line as the surface and
work the highs by pushing them into the proper ) except when you get to the
tde it hooks to the left making the edge appear turned up. You have to
reverse that.  If you try to push that in to the proper shape you will make
it worse. 

If you start at the edge and look at the right side of the line as the
surface the edge looks turned down as it really is. The high now becomes the
location of the start of the turn down. You can push this ridge into the
proper band shape and you will see the two low zones borders as bumps in the
band that can be pushed down to smooth the curve of the band. But the center
hole will look like a bump on that side of the line so if you push that down
you will dig a deeper hole.

This works outside COC also. I have just chosen one side for explanation.

As I said, you might choose to start the interpretation from the edge and
work inward or from center outward depending on where the defects are. Or
choose by which zone you are going to fix in this figuring session.

Generally start at the edge if you are going to fix the edge or something
near the edge. And start at the center if you are going to fix something
near the center.  The stuff in between you might decide based on the idea
that in local figuring you are trying to wear down the boarders of low areas
or directly on high areas.

Make it look right and wear the highs. You can see exactly where and how
much (relatively speaking) you need to work and even judge the feathering
you need to do to blend the zone.

Jerry




-----Original Message-----
From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf Of
Mel Bartels
Sent: Sunday, February 19, 2006 5:32 PM
To: 'ATM list'; atm_free@yahoogroups.com
Subject: Re: [ATM] Ronchi profile technique

 
> Anyone ever played Ronchi this way?   Comments please.


That's ok as far as you mention, but you do restrict yourself to a single
R.C.  There are two other relevant R.C.'s that change the direction of the
Ronchi interpretation depending on RC and zone.  

Mel Bartels


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