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Author Topic: Dopping with epoxy  (Read 192 times)

Faceting Frank

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Dopping with epoxy
« on: September 25, 2021, 04:41:03 PM »
After being sick of burning myself and balancing stones on top of hot waxed dops, only to have the stone fall off, I had to come up with something better.
So, this is it, accurately dopping stones with 5-minute epoxy. I had an old transfer jig I never used, so found a good use for it.
Bolted a bit of angle to it so I could fit two bolt stops, one under the stone and one behind. This will accurately dop any shape stone bar a triangle. After preforming the stone, in this case round, I measure its diameter. So, the formular for this is simple, Diameter of the stone minus the diameter of the dop, answer divided by two equals the distance between the dop and the bolt stop. Have plenty of washers lying around, so use a suitable thickness one to set the bolts in position.
Then set it up in the jig using some blue tack to keep the stone in position.
Transfer dopping is as usual and removing the unwanted dop is by holding the wanted dop with a wet tissue to protect the glue. Putting a weight on the dop to be removed and heating with a BBQ lighter.

geowork

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Re: Dopping with epoxy
« Reply #1 on: September 25, 2021, 08:22:56 PM »
Great idea and use of old equipment! A large diameter "target" dop can also be used to centre stones for dopping. Great for accurately dopping recuts.


Cheers
Bill

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