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- Oct 21, 2004
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Garry H (Cut Nut) said:Hi Yoram,
We have discussed 15 degrees away, 5 towards and 3-5 dgrees rocking side to side.
What do you think?
(But you know you can set any symmetrical variant you choose?)
DiaGem said:Garry H (Cut Nut) said:Hi Yoram,
We have discussed 15 degrees away, 5 towards and 3-5 dgrees rocking side to side.
What do you think?
(But you know you can set any symmetrical variant you choose?)
I know I can choose Garry..., So the more it rocks the more it reveals on the LP of the cut?
Garry H (Cut Nut) said:DiaGem said:Garry H (Cut Nut) said:Hi Yoram,
We have discussed 15 degrees away, 5 towards and 3-5 dgrees rocking side to side.
What do you think?
(But you know you can set any symmetrical variant you choose?)
I know I can choose Garry..., So the more it rocks the more it reveals on the LP of the cut?
LP????
DiaGem said:Garry H (Cut Nut) said:DiaGem said:Garry H (Cut Nut) said:Hi Yoram,
We have discussed 15 degrees away, 5 towards and 3-5 dgrees rocking side to side.
What do you think?
(But you know you can set any symmetrical variant you choose?)
I know I can choose Garry..., So the more it rocks the more it reveals on the LP of the cut?
LP????
You serious? Light Performance![]()
Garry H (Cut Nut) said:DiaGem said:Garry H (Cut Nut) said:DiaGem said:Garry H (Cut Nut) said:Hi Yoram,
We have discussed 15 degrees away, 5 towards and 3-5 dgrees rocking side to side.
What do you think?
(But you know you can set any symmetrical variant you choose?)
I know I can choose Garry..., So the more it rocks the more it reveals on the LP of the cut?
LP????
You serious? Light Performance![]()
D'oh!
Really it depends on how you assess LP DG?
DiaGem said:Garry H (Cut Nut) said:DiaGem said:Translating Aset video...
Some slight tilt show a part while steeper tilts show a different picture!
All Diamonds show leakage in tilts, where is the relevant degree tilt?
Do I agree with this logic? If someone is measuring a specific scientific measurement I believe AGS have the right answers for why.ChunkyCushionLover said:Diagem,
In Diamcalc I prefer swinging rather than a figure 8. I have never seen a Diamantaire or consumer adjust in two directions at once.
But the angles and pattern of tilting is all configurable any way you like for video output.
AGS says a snapshot at 15 in each direction or a total of 30 degrees, along with the faceup is sufficient. With the faceup receiving a greater weighting. That is also the way that Diamcalc calculates its brightness and contrast measurements with these tilt positions.
Though diamond with a CA of 24.5 and pavilion mains at ~40 degrees leaves about 15.5 degrees before one side's angles move below the CA and show widespread leakage under the table. One can combat this with a smaller table but I agree with AGS about setting a practical limit around 15 degrees for brilliant cuts. Some of their metrics use the worst result as the final score, while others being the addition of all positions.
If one wanted to be as precise as possible all tilt positions in half degree incremements up to 15 could be considered. With some metrics using the worst result as the final score, while others being the addition of all positions. I think this would require higher computing resources and isn't going to yield a more accurate overall assessment. To avoid this resource problem AGSL considers these 3 positions in both ASET30 and ASET40 and makes the process more "organic" and qualititative in this respect, when considering a new design especially one where the intermiediary tilt ranges(ie 5, 10 degrees) may be important differentiators.
Do you agree with this logic, if not what do you prefer?
DiaGem said:Do I agree with this logic? If someone is measuring a specific scientific measurement I believe AGS have the right answers for why.ChunkyCushionLover said:Diagem,
In Diamcalc I prefer swinging rather than a figure 8. I have never seen a Diamantaire or consumer adjust in two directions at once.
But the angles and pattern of tilting is all configurable any way you like for video output.
AGS says a snapshot at 15 in each direction or a total of 30 degrees, along with the faceup is sufficient. With the faceup receiving a greater weighting. That is also the way that Diamcalc calculates its brightness and contrast measurements with these tilt positions.
Though diamond with a CA of 24.5 and pavilion mains at ~40 degrees leaves about 15.5 degrees before one side's angles move below the CA and show widespread leakage under the table. One can combat this with a smaller table but I agree with AGS about setting a practical limit around 15 degrees for brilliant cuts. Some of their metrics use the worst result as the final score, while others being the addition of all positions.
If one wanted to be as precise as possible all tilt positions in half degree incremements up to 15 could be considered. With some metrics using the worst result as the final score, while others being the addition of all positions. I think this would require higher computing resources and isn't going to yield a more accurate overall assessment. To avoid this resource problem AGSL considers these 3 positions in both ASET30 and ASET40 and makes the process more "organic" and qualititative in this respect, when considering a new design especially one where the intermiediary tilt ranges(ie 5, 10 degrees) may be important differentiators.
Do you agree with this logic, if not what do you prefer?
That is actualy what I wanted to find out, thanks.
The reason is I noticed DC default was at 3 & 5 degrees and simply thought it was at a minimum.
Garry H (Cut Nut) said:Regarding rocking - in my experiance at a sales desk - most people hold a ring or a diamond in a box or stone holder and rock it to and away from them, about 5 towards and 15 degrees away.
oui!DiaGem said:Garry H (Cut Nut) said:Regarding rocking - in my experiance at a sales desk - most people hold a ring or a diamond in a box or stone holder and rock it to and away from them, about 5 towards and 15 degrees away.
You mean 20 degrees in total?
Garry H (Cut Nut) said:oui!DiaGem said:Garry H (Cut Nut) said:Regarding rocking - in my experiance at a sales desk - most people hold a ring or a diamond in a box or stone holder and rock it to and away from them, about 5 towards and 15 degrees away.
You mean 20 degrees in total?
DiaGem said:Garry H (Cut Nut) said:oui!DiaGem said:Garry H (Cut Nut) said:Regarding rocking - in my experiance at a sales desk - most people hold a ring or a diamond in a box or stone holder and rock it to and away from them, about 5 towards and 15 degrees away.
You mean 20 degrees in total?
Merci
Can you program 5 toward / 15 away on DC?
Garry H (Cut Nut) said:DiaGem said:Garry H (Cut Nut) said:oui!DiaGem said:Garry H (Cut Nut) said:Regarding rocking - in my experiance at a sales desk - most people hold a ring or a diamond in a box or stone holder and rock it to and away from them, about 5 towards and 15 degrees away.
You mean 20 degrees in total?
Merci
Can you program 5 toward / 15 away on DC?
Nup, not yet anyway.
But if we build that into the LBox then it will be done in DiamCalc too![]()
![]()
Karl_K said:I would like to see a dance.
The first 5 degrees are always going to be the most important. so:
dance 5 right-5left-5front-5rear-5side-side-side-side-10R10L10F!0R10S10S10S10S
Then repeat 2x and finish off with a short session 25L/25R/25S/25s/25S/25s
Then change lighting to direct from diffused and repeat.
I would like to see that one click creatable for up to 4 dmc files.
Karl_K said:I would like to see a dance.
The first 5 degrees are always going to be the most important. so:
dance 5 right-5left-5front-5rear-5side-side-side-side-10R10L10F!0R10S10S10S10S
Then repeat 2x and finish off with a short session 25L/25R/25S/25s/25S/25s
Then change lighting to direct from diffused and repeat.
I would like to see that one click creatable for up to 4 dmc files.
DiaGem said:Karl_K said:I would like to see a dance.
The first 5 degrees are always going to be the most important. so:
dance 5 right-5left-5front-5rear-5side-side-side-side-10R10L10F!0R10S10S10S10S
Then repeat 2x and finish off with a short session 25L/25R/25S/25s/25S/25s
Then change lighting to direct from diffused and repeat.
I would like to see that one click creatable for up to 4 dmc files.
What type of drugs are you on![]()
Good to hear you are back up and breathing![]()
Good luck with Sergey..., I would love to see him incorporate your dance on DC and some....![]()
I guess it actually depends on Garry and his Box
CCL, I am still trying to conquer 'cut editor'.
ChunkyCushionLover said:You and me both. I am stuck creating designs in Gemcad using meetpoint and centre angle method and then importing into DC for measuring light performance. Not an efficient or easy to optimize method.
I need to see the indexes on the facets(don't know how in DC) to know where I am, and have had a hell of a time straightening the girdle in DC.You as a cutter hopefully are having an easier time.
![]()
DiaGem said:ChunkyCushionLover said:You and me both. I am stuck creating designs in Gemcad using meetpoint and centre angle method and then importing into DC for measuring light performance. Not an efficient or easy to optimize method.
I need to see the indexes on the facets(don't know how in DC) to know where I am, and have had a hell of a time straightening the girdle in DC.You as a cutter hopefully are having an easier time.
![]()
CCL..., cutting virtual Diamonds is nowhere near working on the material itself..., DC has a few limitations that actual cutting doesnt and vice versa![]()
ChunkyCushionLover said:DiaGem said:ChunkyCushionLover said:You and me both. I am stuck creating designs in Gemcad using meetpoint and centre angle method and then importing into DC for measuring light performance. Not an efficient or easy to optimize method.
I need to see the indexes on the facets(don't know how in DC) to know where I am, and have had a hell of a time straightening the girdle in DC.You as a cutter hopefully are having an easier time.
![]()
CCL..., cutting virtual Diamonds is nowhere near working on the material itself..., DC has a few limitations that actual cutting doesnt and vice versa![]()
Care to elaborate on the limitations and provide a few details?
Try making a C3 shallower on an existing & complete step-cut model.ChunkyCushionLover said:DiaGem said:ChunkyCushionLover said:You and me both. I am stuck creating designs in Gemcad using meetpoint and centre angle method and then importing into DC for measuring light performance. Not an efficient or easy to optimize method.
I need to see the indexes on the facets(don't know how in DC) to know where I am, and have had a hell of a time straightening the girdle in DC.You as a cutter hopefully are having an easier time.
![]()
CCL..., cutting virtual Diamonds is nowhere near working on the material itself..., DC has a few limitations that actual cutting doesnt and vice versa![]()
Care to elaborate on the limitations and provide a few details?
DiaGem said:Try making a C3 shallower on an existing & complete step-cut model.ChunkyCushionLover said:DiaGem said:ChunkyCushionLover said:You and me both. I am stuck creating designs in Gemcad using meetpoint and centre angle method and then importing into DC for measuring light performance. Not an efficient or easy to optimize method.
I need to see the indexes on the facets(don't know how in DC) to know where I am, and have had a hell of a time straightening the girdle in DC.You as a cutter hopefully are having an easier time.
![]()
CCL..., cutting virtual Diamonds is nowhere near working on the material itself..., DC has a few limitations that actual cutting doesnt and vice versa![]()
Care to elaborate on the limitations and provide a few details?
You'll understand right away.
Table is the most sensitive factor in the (real life) cutting to super precision cuts. (eg margin of maximum scan error)ChunkyCushionLover said:DiaGem said:Try making a C3 shallower on an existing & complete step-cut model.ChunkyCushionLover said:DiaGem said:ChunkyCushionLover said:You and me both. I am stuck creating designs in Gemcad using meetpoint and centre angle method and then importing into DC for measuring light performance. Not an efficient or easy to optimize method.
I need to see the indexes on the facets(don't know how in DC) to know where I am, and have had a hell of a time straightening the girdle in DC.You as a cutter hopefully are having an easier time.
![]()
CCL..., cutting virtual Diamonds is nowhere near working on the material itself..., DC has a few limitations that actual cutting doesnt and vice versa![]()
Care to elaborate on the limitations and provide a few details?
You'll understand right away.
Oh I know what the limitations of DC are I'm struggling with them myself. I've resigned myself to rebuilding all tiers from scratch instead of trying to modify an existing cut diamond or model, in order to have control over optimization.
If I knew the Cut Designer better and freeform as opposed to centre angle method of cutting it would be a lot easier I am hoping.
Perhaps even the order of cutting would be different in real life faceting.
Do you have many designs where you cut the table facet last?
When designing I do both, that allows me to try various combos with less work....ChunkyCushionLover said:Do you have many designs where you cut the table facet last?
Karl_K said:When designing I do both, that allows me to try various combos with less work....ChunkyCushionLover said:Do you have many designs where you cut the table facet last?
find a kewl crown then do it crown first and add other pavilions and vis-versa.