Forums General Discussion 2020 Grandmasters stone

40 replies, 9 voices Last updated by davidechols 5 months, 3 weeks ago
Viewing 15 posts - 1 through 15 (of 41 total)
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  • #6077

    davidechols
    Participant
    @davidechols

    I would like some clarification on how to judge the size of the stone. Dan Lynch in his cutting review says to measure from the G4, G5 point to P11. Well P11 does not meat the girdle so is one supposed to guess on where one thinks P11 will hit the girdle. The L/W of the stone is 1.001 so it seems to me that a more accurate measuring point would be the 96, 48 point. Which is G1 /G9.

    #6078

    scottwkelley
    Participant
    @scottwkelley

    I agree, for setting reasons. 96 to 48

    #6079

    Dan Lynch
    Participant
    @danlynch

    Good catch – I certainly made an error on the width instructions. Stay tuned, this is being checked with the head of the competition committee and we will post here and update the write up timely.

    #6081

    omeganeko
    Participant
    @omeganeko

    Yes. I just logged in to ask the same question. Anxiously awaiting an answer.

    #6083

    Carmina Orilla
    Participant
    @carminaorilla

    Great question. I was just wondering the same thing when I was reading the instructions. I hope we can get the info soon.

    Thank you for keeping us up to date.

    #6085

    davidechols
    Participant
    @davidechols

    I have been studying the diagram and now understand that this design is really a misshapen-ed round by having a L/W of 1.001. The largest measuring points would be 24/72 which would be points or 96/48 with one flat and one point. Measuring from G5 would be another option but G5 does have an angle involved which would be harder to measure from accurately. It is important to get the size correct or face a large deduction. This design is going to be a challenge to cut, at least for me, with so many angle changes and is worthy of being a Grandmaster stone. I am not sure I will enter having taken a break from faceting for a number of years. Depends on how well by test cuts turn out.

    #6086

    Alan Balmer
    Keymaster
    @alanbalmer

    To boil it all down, the width should be measured as marked on the diagram. Surely a Grand Master candidate can interpret a GemCad diagram.

    #6087

    davidechols
    Participant
    @davidechols

    Alan, in the review by Dan Lynch he stated it should be measured from G4, G5 and P11. He has since stated he was wrong. That is where the confusion lies. If the review had not stated what it did I would have measured by the diagram. Evidently you have not followed this thread. Why the sarcasm? Is it because I said I like an analog angle head and you disagreed with you previous post?

    #6088

    davidechols
    Participant
    @davidechols

    I should add Dan has stated it will reviewed by the competition committee which should settle the matter. Others wait on the answer as well because having the size correct without any question really matters.

    #6090

    davidechols
    Participant
    @davidechols

    ” Surely a Grand Master candidate can interpret a GemCad diagram.”

    I just want to say that someone who is an officer at the USFG to insult someone insinuating they cannot read a Gemcad diagram is insulting. I would expect more professionalism even if I was not able to read a diagram. Having competed at the International Australian contest I am obligated to compete at the grandmaster level.

    #6091

    davidechols
    Participant
    @davidechols

    Having competed at the 2014 International Faceting Challenge with 4 other Grandmasters which made up the team and placing above 2 other Grandmasters on our team I do not have to prove I can cut at the Grandmaster level. At least I could in 2014. I placed 11th against all the cutters in the world that entered that event.

    Alan I look forward to hearing about your accomplishments in the Faceting world.

    #6092

    davidechols
    Participant
    @davidechols

    I do not think I want to participate on this forum any more if this is the an officer treats a member. At my age I do not need the hassle and drama that goes on at a forum when one just ask a simple question about the correct size of a competition stone.

    #6093

    omeganeko
    Participant
    @omeganeko

    Wow, Alan. That was a poor response to a request for clarification of confusion caused by the competition organizer. You should apologize immediately for your lack of empathy.

    #6094

    Ron Davis
    Participant
    @rondavis

    Alan , you are spot on.
    Master and Grand Master’s have the skills to read a simple design
    and figure it out.

    #6095

    davidechols
    Participant
    @davidechols

    I am perfectly able to design a stone using Gemcad but for the sake of us that are not as intelligent as Alan and Ron let them tell us the place to measure from to achieve 12mm and not be penalized. Dan has already stated that the competition committee is going to give clarification but appears your two already know how so tell us. As I see the diagram the largest measuring point would be either 24/72 or 96/48. Either should be the longest spot being that the L/W is 1.001. I honestly believe Alan’s post was just made being a jerk towards me, to insult me. Both of you tell us where to measure from where no one will be measuring from the wrong place or perhaps you both just want to keep the info for yourselves to have an advantage.

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