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Need Pipemaker help/advice: Staining Natural Pipes
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<blockquote data-quote="Blackhorse" data-source="post: 385370" data-attributes="member: 1365"><p>A typical bench grinder/buffer rpm is about 3500 + or -. That gives a surface speed of about 5500 fpm with a 6" disc (buffer or grinder).</p><p></p><p>A Dremel can generate as much as 32,000 rpm at the shaft...not counting the added diameter of the wheel...so the Dremel wheel in the hands of someone not really familiar and practiced with it is a recipe for disaster. It will melt a nice furrow in a pipe step in a micro second.</p><p></p><p>However, that being said, since the friction is a result of speed plus the compound media...a Dremel will have no problem whatever with these tasks...again, it's more in handling or how it is applied to the surface in question. I find that about 1/4 to 1/3 power and a very, very, very light 'swirly' touch work well with white diamond compound works well for me. Under no circumstances allow the wheel of a Dremel buff to sit on the surface while rotating unless it is being moved over the surface...or lovely divots will ensue.</p><p></p><p>Further note: with the right head chucked in, they are useful for rusticating on occasion.</p></blockquote><p></p>
[QUOTE="Blackhorse, post: 385370, member: 1365"] A typical bench grinder/buffer rpm is about 3500 + or -. That gives a surface speed of about 5500 fpm with a 6" disc (buffer or grinder). A Dremel can generate as much as 32,000 rpm at the shaft...not counting the added diameter of the wheel...so the Dremel wheel in the hands of someone not really familiar and practiced with it is a recipe for disaster. It will melt a nice furrow in a pipe step in a micro second. However, that being said, since the friction is a result of speed plus the compound media...a Dremel will have no problem whatever with these tasks...again, it's more in handling or how it is applied to the surface in question. I find that about 1/4 to 1/3 power and a very, very, very light 'swirly' touch work well with white diamond compound works well for me. Under no circumstances allow the wheel of a Dremel buff to sit on the surface while rotating unless it is being moved over the surface...or lovely divots will ensue. Further note: with the right head chucked in, they are useful for rusticating on occasion. [/QUOTE]
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Need Pipemaker help/advice: Staining Natural Pipes
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