ogi and ags

[strmrdr]

http://idexonline.com/portal_FullNews.asp?id=27609

Hopefully they will have a scanner soon that is good enough data to actualy be worth running thru AGS PGS with any accuracy.

 

[Garry H (Cut Nut)]

Date: 6/2/2007 8:31:23 PM
Author:strmrdr
http://idexonline.com/portal_FullNews.asp?id=27609

Hopefully they will have a scanner soon that is good enough data to actualy be worth running thru AGS PGS with any accuracy.

You will look at this Ogi scan I had put on my memory stick by their CEO today Storm and say "see, Og scans are *&%$#@.

But you may be wrong.

The broken facets on the crown are all within 0.01 or 0.02 degrees on facet angle or slope, and azimuth.

I will ask Daniel if I get time though to explain if the pavilion main at the top 12 oclock position was really polished so badly.

I also have a 3 files from GIA''s version of the Ogi scaner and saw the same broken facets and in each case there was the same degree of very slight variation in data.

If I get time, and both parties are willing, I will have a MSS stone that I will have tomorrow run on both machines.

Of course it depends on the demo models being up to par - often what is taken to a trade fair is beaten about a fair bit.

 

[strmrdr]

If it turns out they have come out with a good scanner than bravo

But im skeptical until I see some reports vs helium scans of the same stones.
Or better yet DC models based on the data that are as good as helium or atleast as good as sarin.

 

[oldminer]

All scans have some degree of error. We know the Helium is excellent but there is no reason to think others can't play in the same arena if economics make it practical. I would also think that some of the line art rendered by the programming is less perfect than some of the data taken from the scans. This would further increase the potential for visibly different renderings that the reality seen under close microscopic examination.

Trying to calculate grade based on a scan or based on a line art rendered interpretation of the scan may lead to less than an ideal result. It makes sense to think this would be the case. How else could one conclude and why would they?

 

[Garry H (Cut Nut)]

I passed a stone to Daniel from Ogi today.

The GIA Gem instrument guy prefers to scan a stone after the guys at the office have checked the calibration (which is fair enough, he is the salemanager and unlike Dani, he is not a scanner expert), but the good news is he is agreeable to conducting a test. Which does not mean that someone further up will not squash it.

The point is, Storm et al, that having more options for scans that we can place into DiamCalc and assist consumers with will be an additional benefit as the GIA and Ogi scanners are affordable and will likley become more common.

Being able to compare real ideal-scope and ASET photo''s to modeled imges from scans will provide us the simple testing we require.
I am sure Dave, you would agree that this is an adequate and simple enough test?

Perhaps Dr A would allow an .stl file to be produced by Imagem also?