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Lapidary / Gemstone Community Forum
February 22, 2019, 02:17:03 pm
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rough too small to fit in vice

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Author Topic: rough too small to fit in vice  (Read 894 times)
deb193
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« Reply #15 on: September 08, 2013, 03:02:38 pm »

No, those thin edge Lortone grabbers are crap. I gave all mine away.

The kind I showed photos of will work in both kinds. The square tube can be clamped form tob-bottom or front-back. Any local welding shop should be able to make one up.
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- Daniel

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peruano
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« Reply #16 on: September 16, 2013, 12:35:29 pm »

Vice devices are wonderful, but glue on a wood stub is "simple".  Don't be put off by drying time.  I've cut stuff within 6 hrs after gluing it up, but my standard is overnight to dry.  I use Gorilla Glue wood glue, but the standard Gorilla Glue works great too - just a bit harder to remove the glue and the wood stub.
Elmer'[s wood glue works as well - it may take a 3 day soak to get that last piece off the stub, but you have not wasted any rough, and you have not risked your blade to dubious holding accidents.  You need a semblance of a flat surface (trim saws rock) and then you have free reign.  Thanks for all the info on slab grabber like things.  I'm going to work on that route too.  Tom
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Tom
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hulagrub
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« Reply #17 on: September 16, 2013, 03:25:01 pm »

Gorilla glue overnight! My home made slab grabber for geodes.
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Dave, a certified Rockaholic

hardrockcafe
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« Reply #18 on: September 25, 2013, 04:45:45 pm »

Daniel's design is a good one.

Here are three threads in another forum to give you some more ideas:

I made one like this:  http://andy321.proboards.com/thread/15517/cost-slab-grabber

http://andy321.proboards.com/thread/31966

I'm thinking about making one of these so I can cut Montana agate or others that require precise orienation:  http://andy321.proboards.com/thread/26058?page=2

Chuck
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« Reply #19 on: September 25, 2013, 05:04:19 pm »

I use Elmers WoodGlue Max and a 4 inch long 2x4. glue and let sit overnight and you are good to go... I start from the inside edge and count the turns to the outside edge so I can plan my cuts and make the last cut to remove the stone from the board. no problems experienced to date!!

I bought the 8 oz bottle from Lowes and have had it for 3 months so far and still plenty to go b4 I need to buy more!!
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Mario

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« Reply #20 on: September 28, 2013, 09:41:28 am »

If you have a flat face on the rock just super glue it to the end of a brick and you can be cutting in minutes for the price of a used brick. May sure you clean both surfaces first. I use a scrap piece of granite 2"x2"x4" but marble from home depot would work too.

Fred
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« Reply #21 on: September 29, 2013, 03:03:32 pm »

I gorilla glue mine to a chunk of 2x4.
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Nancie
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hulagrub
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« Reply #22 on: September 29, 2013, 03:58:04 pm »

Nancie taught me this and it WORKS!
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Dave, a certified Rockaholic

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« Reply #23 on: April 28, 2015, 09:59:17 am »

I've been using scrap wood for years with Elmers wood glue. It's worked fine. Since I got my new saw running, I've had nothing but trouble. Rocks coming off or slabs that won't cut evenly. I finally figured out that the saw is generating a lot of heat. The Elmers is getting rubbery and causing the stones to either rip off or shift.

Any ideas for a glue that will withstand higher temps?
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