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How to cut sorbothane?

I recently read a glowing review of Herbie's Big Fat Discs, which are 5/16" thick by 1 5/16" diameter sorbothane discs. So, I did some research and I found a huge variety of sorbothane sheets available at McMaster-Carr. I bought a 12"x12" by 1/4" sheet of 40 durometer sorbothane for $29.

Does anyone have a clever and easy method for cutting discs out of this sheet other than scissors? I was thinking of a sharpened cookie cutter type thing as a tool which could be hammered down on the sorbothane, effectively cuttting a disc...

BTW, I can get 8 discs out of this $29 12"x12" sheet (with useful scrap left over), and 8 Herbie's Big Fat Discs would cost just under $90.
tvad
tvad OP
9,467 posts
 
Well, I received the 1 1/2" arch punch today, and it's absolutely perfect for the job. Thanks, Stilljd, for the suggestion.

I have a few extra sets of four 1 1/2", 3/8" (not 5/8" as previously stated), 40 durometer discs available for a very reasonable price.
tvad OP
9,467 posts
 
I have some miscellaneous pieces remaining. They are about 1/2"x1/2" and shaped like four pointed stars. Imagine a square with four circles cut out. The remaining "star" in the middle is what I have. I use a couple sets of these starfish footers under power supplies. If anyone is interested in some sets of four, I will offer them for the cost of mailing plus a small handling fee to cover the padded mailing envelope and my time to go to the Post Office. Basically, I want to get the leftover stuff out of my office, and I hate to throw it away (or store it).

These are really great tweaks, and available for less than a good deli sandwich. :)
riffer
362 posts
 
Do you have any pictures of the completed discs you can post somewhere? I wouldn't mind seeing how they turned out with the punch.
tvad OP
9,467 posts
 


01-14-07: Riffer
Do you have any pictures of the completed discs you can post somewhere?
I can email photos if you send me your email address.
herbies
9 posts
 
Herbie's Big Fat Dots are NOT Sorbothane, and have virtually no similarity to Sorbothane. Big Fat Dots are a unique blend of barium sulfate-filled platinum-cured silicones and vinyl siloxanes. They are not "squishy" like Sorbothane, but rather are a very firm, vibration blocking material. (And, by the way, the raw materials themselves are quite expensive.) Please do not compare Herbie's products with others; it's like comparing apples to soda pop.

Thank you very much,

Steve Herbelin
Herbie's Audio Lab
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