The 3" Infinite Rim Mold™ comes with one hole and is designed to make any size marble between approximately 2?" and 3½" diameter. We are able to supply larger moulds 4" (3½" to 4?"), 5" (4¼" to 5¾") and 6" (5¼" to 6?"). PLease email Josh if you would like some more information, prices and delivery leadtime.
This marble mould is designed by Drew Fritts and manufactured by Dan Grumbling (both glass artists). They are the most highly regarded marble-shaping moulds on the market and an essential tool for everyone making marbles. An investment you only want to make once.
The mould has a tapered hole, rather than the traditional hemispherical cup. The conical surface provides an infinite number of 'rims' because no matter the size of the gather (within the range of the cup) spinning inside a conical mould will make it round. The hole has been mathematically designed so that any marble within that range will be rounded as if it were in an optimal size cup mould.
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