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Topic: Triple combo pocket pewter cups from Buma
Message: Posted by: francisngkl (Mar 21, 2011 10:56PM)
This is just listed in Stevensmagic. Beautiful cups with loading options plus engraved wand at an amazing price of $200!


Message: Posted by: Bill Palmer (Mar 21, 2011 10:58PM)
I saw the prototypes of these at the WMS.
Message: Posted by: yin_howe (Mar 22, 2011 12:38AM)
How is the weight of pewter? Is it as heavy as copper?
Message: Posted by: Bill Palmer (Mar 22, 2011 12:57AM)
It's similar. They don't make these cups in copper, so there isn't anything to compare with the pewter ones.
Message: Posted by: yin_howe (Mar 22, 2011 01:26AM)
On 2011-03-22 01:57, Bill Palmer wrote:
It's similar. They don't make these cups in copper, so there isn't anything to compare with the pewter ones.
Thanks Mr Palmer.
I was actually inquiring the weight of the metals pewter vs copper, rather than specific to these particular cups.
Message: Posted by: gaddy (Mar 22, 2011 09:03AM)
I found this very informative site that might help you with questions of this nature. Enjoy!

Message: Posted by: Bill Palmer (Mar 22, 2011 10:20PM)
The problem is that the search provided here doesn't answer the actual question. Pewter is generally 90 to 98% tin. Tin comes in two basic forms, white tin, which has a density of about 7.3 and grey tin which has a lower density (about 5.6). There is also a component of copper and one of antimony. Pewter generally has a slightly lower density than copper, which is roughly 7.9. The numbers represent grams per cubic centimeter.

However, much of the copper that we deal with in cups is actually red bronze. Red bronze is a bit lighter than pure copper, but is much stiffer. If the cups fro House of Magic are cast, they may be thicker than a set of spun copper cups. Then the weight differences would not be very apparent.
Message: Posted by: fortasse (Mar 23, 2011 07:07AM)
Referring to the set shown on the Steven's Magic website, I hope the wand is a whole lot lighter than the one that came with Buma's original mini pewter cups. Weighs a ton!
Message: Posted by: Woland (Mar 25, 2011 06:26AM)
Any thoughts on the differences in handling, durability, sound effects, etc., between the silver version of these cups and the pewter?

Message: Posted by: BarajasMagic (Aug 29, 2013 12:25PM)
I saw these cups at Magic Live at the dealers table. They are nice and heavy for there size compared to the pewter mini paul fox cups from RNT2. I own the RNT2 cups they are lighter and the metal is soft so you have to be carefull with them or else the dent pretty easily (Trust me, I know from experience.) The Buma Cups seemed much sturdier.