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  1. Replies
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    The standard rule is "minimum 3 teeth in the...

    The standard rule is "minimum 3 teeth in the cut". That said, I use 4/0 on 5mm steel, but that's for complex shapes so coarser works fine for simpler layout. Copper's a bit of a pest at times given...
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    It'll do shellac, epoxy, superglue - none of them...

    It'll do shellac, epoxy, superglue - none of them are particularly resistant to heat.
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    Laser welder works beautifully well for warming...

    Laser welder works beautifully well for warming the post and not the pearl.
    There's other methods too, of course :)
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    Unfortunately for me, the archetypal Belgian...

    Unfortunately for me, the archetypal Belgian waffle is the Gaufre de Liege. A very different beast to those rectangular things. A bit more difficult to make, too (yeast based, need to use pearl...
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    I like dealing with this bunch -...

    I like dealing with this bunch - https://www.jewellerycastingscotland.com/
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    Tsk. Bullet's the pointy end; the bullet fits in...

    Tsk. Bullet's the pointy end; the bullet fits in a case, the case has a primer, the whole ensemble is a round :)
    Full metal jacket is swaged over the core, but there's hole in the end still.
  7. Already covered. Personally, I'd just make the...

    Already covered.

    Personally, I'd just make the things. Or make one, use it as a master and get new ones cast whenever you need. It'll be better quality too.
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    Result! Measure twice, cut once? (and skip the...

    Result! Measure twice, cut once?
    (and skip the extra 1mm!)
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    My charts list U as 62.89 (20.02 diameter); pi *...

    My charts list U as 62.89 (20.02 diameter); pi * 1.3 + 62.89 = 66.97mm (67 nears as makes no difference).
    I still don't follow the need to add on 1mm... If anything, it's preferable to make a ring...
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    Do you have a record of the measurements you...

    Do you have a record of the measurements you used? Just to cross-check.
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    Not sure I quite follow the reason you're adding...

    Not sure I quite follow the reason you're adding 2mm? I recently made a ring in 8x2mm silver using the formula pi*(diameter + thickness) and it came out the right size.

    If you're using a steel...
  12. There's a similar system detailed in the book...

    There's a similar system detailed in the book "Numismatic Forgery" that has been used to create coins. Yes, it's perfectly feasible to swing a sledge consistently. Thickness of the blank isn't the...
  13. Thread: Gem courses

    by ps_bond
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    Depends what you actually want. Gem-A or GIA do...

    Depends what you actually want. Gem-A or GIA do very thorough courses on gemology (including some distance learning, but there's lab assessments).
    Kerry Gregory does the occasional course that's a...
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    I've done a small amount of carving with a...

    I've done a small amount of carving with a flexshaft - I wouldn't use a Dremel for that as it's done wet, so the flexshaft reduces the problems of water + electrics.
    I suppose you could work through...
  15. I'd go back to the school and ask them what they...

    I'd go back to the school and ask them what they ran them on if at all possible.
    My Flamefast was originally jetted for NG; I had it redone for propane - but there was no visible indication as to...
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    I prefer a zoom microscope, but on the...

    I prefer a zoom microscope, but on the understanding that any (stereo) microscope is better than none, if the price is right I'd go for it. Mine runs from about 6-40x (using 10x eyepieces) although...
  17. What you probably want is a company that'll do...

    What you probably want is a company that'll do lost wax casting & burnout of organic materials; the burnout can be fraught sometimes as sometimes they don't fully decompose. Flowers should be OK for...
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    It's a post count limitation designed to reduce...

    It's a post count limitation designed to reduce spammers hitting us with links. Can't offhand remember if it's 5 or 6 posts...

    This one?


    https://www.youtube.com/watch?v=FeMd_ZXkXa0
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    Moderator only - I don't have the keys :) I'd...

    Moderator only - I don't have the keys :)
    I'd only have to bounce it up the line to Rob or Dave (dgrose).
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    Laser cutting silver is more problematic due to...

    Laser cutting silver is more problematic due to the heat conduction and reflectivity of the material, so that limits the kit slightly (steel's easy in comparison). Photoetching silver - I'm assuming...
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    That would be me. Your orders page is not...

    That would be me.

    Your orders page is not visible to anyone but you, so doesn't really provide anything additional.

    You're going to be more likely to shift these as individual items than a job...
  22. Thread: Gold Plating?

    by ps_bond
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    Brush plating I just use the gold solution over...

    Brush plating I just use the gold solution over silver. Very thin though.
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    Anyway, looking forwards to seeing the ring.

    Anyway, looking forwards to seeing the ring.
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    Yup, happy Christmas everyone.

    Yup, happy Christmas everyone.
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    Some of use don't need drugs for that! As I...

    Some of use don't need drugs for that!

    As I mentioned on another thread, being put onto diazepam & cocodamol made me disjointed and unable to focus (mentally) on anything - I couldn't hold a...
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