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Tips, Techniques, and Questions -- Technical questions or tips

View Poll Results: Which is better - Brass or Graphite Reamers?
Brass 9 40.91%
Graphite 10 45.45%
Doesn't matter 3 13.64%
Voters: 22. You may not vote on this poll

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  #1  
Old 2013-07-18, 6:49pm
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Default Brass or Graphite Reamer?

I mostly make marbles, but I am going to try pendants. Which is better - a brass or graphite reamer? Does soft glass or boro make a difference as which to use? I plan to use boro for my pendants.
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Old 2013-07-18, 7:15pm
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I use graphite. Glass tends to slide along it better.

I bought a stainless flairing tool and it seems a little grabby. I wish I had bought the graphite one instead.

Chuck
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Old 2013-07-18, 8:30pm
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A certain bead goddess who's name begins with C, swears by brass as she thinks graphite is dirty. Personally, I hate brass. I get scum marks on the clear encasement from the brass. Brass grabs the glass so you can't use it like a bead roller. Graphite gets my vote -especially when you get a high quality graphite piece like CG Bead Roller.
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Old 2013-07-25, 8:27pm
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Thanks for your responses Chuck and Tammy. I've heard that graphite can leave dirt behind, but I haven't had that problem with my marble mold. I've also heard that brass can be grabby, but I haven't heard that brass can leave scum behind. So I went with the graphite reamer. I haven't had a chance to use it yet.
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  #5  
Old 2013-07-26, 10:38am
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There is a difference between brass and graphite for tools. The heat transmittance for graphite is variable, depending on how it's formed (25-470 watts/meter squared X degrees Kelvin). There will be some variation for brass as well, depending on the alloy (around 110-115 w/m*K)). In general, however, graphite tends to have a higher transmittance for heat than brass. It'll pull heat from your bead quicker and this can have an effect on how the colors set up.

I use both types of tools. Brass is good when you want to move glass around - it doesn't stick to the glass, but does seem to exert more 'pull' when you are trying to shift the glass around. I use graphite tools for shaping. They are both good to have in your tool kit - you will have to practice a bit to find which does best for your individual needs.

Good quality graphite (like that sold by Loren Stump) doesn't leave crap behind, lesser grades will.

Robert
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  #6  
Old 2015-09-06, 10:58pm
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I use both as well. Each material has benefits and drawbacks. I use beeswax on my brass reamers to reduce the grabbing.

Otter
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