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Post by stardiamond on Aug 16, 2014 18:38:55 GMT -5
What is it?
I got a Montana nodule on ebay. I faced it slabbed some of it and trimmed one piece to make a cab trying to get a stable area. I preformed the cab ground some stuff of the back that I didn't want and then started shaping it. It promptly split in half.
My wife had me trim a thunderegg slab. I trimmed of the matrix without incident and then when I tried to do an internal straight cut, it fell apart. Working with material that has healed fractures; like Morgan Hill, I wonder whether the slab or cab is going to make it.
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azgnoinc
spending too much on rocks
Member since March 2014
Posts: 484
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Post by azgnoinc on Aug 17, 2014 9:09:06 GMT -5
Help us help you by providing a lot more info, and pictures are always helpful too.
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1mofo
off to a rocking start
the toting my hands dirty now just cutting slabs for the colder months when I can't get to my barn
Member since July 2014
Posts: 16
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Post by 1mofo on Aug 21, 2014 21:09:58 GMT -5
Thanks I will update my post tomorrow thanks
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rykk
spending too much on rocks
Member since September 2011
Posts: 428
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Post by rykk on Aug 21, 2014 21:40:38 GMT -5
Get some cyanoacrylic, one part epoxy glue like Hot Stuff, Zap-A-Gap, etc and apply a liberal amount to any and all cracks visible from the outside. If the glue flows down into a crack and disappears quickly, kepp adding to it immediately so that it won't set up and will keep going deeper into the crack. Seal porous looking areas, too. Then do the faced side where you already cut, as well.
I had some Flowering Tube Onyx that kept breaking when I slabbed it (spendy stuff!) and was able to get a good many intact slabs from the chunks I had by doing this. What I found that I had to on some chunks was to seal the faced/flat surface between every cut as the glue didn't seep more than a quarter inch or so into it. A little tedious but it was well worth it as each of the slabs that I sold from my hoard garnered a pretty good selling price on ebay with no complaints. C-ya, Rick
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Post by Rockoonz on Aug 21, 2014 23:01:00 GMT -5
If you warm it up before the Hot Stuff it will soak in better. If the rock is common opal it will fall apart when cutting with oil, that's my experience anyway.
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1mofo
off to a rocking start
the toting my hands dirty now just cutting slabs for the colder months when I can't get to my barn
Member since July 2014
Posts: 16
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Post by 1mofo on Aug 22, 2014 19:13:46 GMT -5
Here are some photos of the rough I'm having problems with its shattuckite I got from Arizona it's very nice looking but as soon as I run it on my 18 in covingtone it just falls to pices is there a easy to keep it from doing that ? I have tried to add a photo but it won't let me ! What am I doing wrong?
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1mofo
off to a rocking start
the toting my hands dirty now just cutting slabs for the colder months when I can't get to my barn
Member since July 2014
Posts: 16
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Post by 1mofo on Aug 23, 2014 12:20:57 GMT -5
Get some cyanoacrylic, one part epoxy glue like Hot Stuff, Zap-A-Gap, etc and apply a liberal amount to any and all cracks visible from the outside. If the glue flows down into a crack and disappears quickly, kepp adding to it immediately so that it won't set up and will keep going deeper into the crack. Seal porous looking areas, too. Then do the faced side where you already cut, as well. I had some Flowering Tube Onyx that kept breaking when I slabbed it (spendy stuff!) and was able to get a good many intact slabs from the chunks I had by doing this. What I found that I had to on some chunks was to seal the faced/flat surface between every cut as the glue didn't seep more than a quarter inch or so into it. A little tedious but it was well worth it as each of the slabs that I sold from my hoard garnered a pretty good selling price on ebay with no complaints. C-ya, Rick
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1mofo
off to a rocking start
the toting my hands dirty now just cutting slabs for the colder months when I can't get to my barn
Member since July 2014
Posts: 16
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Post by 1mofo on Aug 23, 2014 12:22:55 GMT -5
Thanks Rick I did get some hot stuff and am going to see what I can do any more advise on using this method
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1mofo
off to a rocking start
the toting my hands dirty now just cutting slabs for the colder months when I can't get to my barn
Member since July 2014
Posts: 16
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Post by 1mofo on Aug 23, 2014 12:26:47 GMT -5
If you warm it up before the Hot Stuff it will soak in better. If the rock is common opal it will fall apart when cutting with oil, that's my experience anyway. Thanks lee I did just that hot stuff came in on Friday I am going to give it a shot any more advise on this would be great thanks
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Post by Starguy on Aug 24, 2014 10:32:06 GMT -5
Here are some photos of the rough I'm having problems with its shattuckite I got from Arizona it's very nice looking but as soon as I run it on my 18 in covingtone it just falls to pices is there a easy to keep it from doing that ? I have tried to add a photo but it won't let me ! What am I doing wrong? 1mofoTo upload photos, you need to first upload them to a photo sharing website. I like Photobucket the best, but there are several you can use. Once they are uploaded to Photobucket, I have to find and copy the .img file location and then paste it into the post/thread I want the photo to appear in. Hope this helps. Keep trying. It can be kind of a pain in the @$$ until you've done it a time or two.
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Post by Rockoonz on Aug 24, 2014 14:15:52 GMT -5
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rykk
spending too much on rocks
Member since September 2011
Posts: 428
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Post by rykk on Aug 25, 2014 1:01:13 GMT -5
Make sure to watch out for the seriously intense fumes if you warm up the rock b4 sealing it! It's really bad. My take on this is not to do it because I'm thinking that it makes the glue sorta evaporate and set up too soon before it can penetrate as far.
And just remember to be patient and seal each sawn face before making the next cut. I was using water with a bit of antifreeze, so drying in the oven was all I needed to do. If you're using oil, you'll have to do a really good job degreasing the sawn face before gluing. Acetone would work well. C-ya, Rick
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1mofo
off to a rocking start
the toting my hands dirty now just cutting slabs for the colder months when I can't get to my barn
Member since July 2014
Posts: 16
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Crumbling
Jan 20, 2015 16:18:57 GMT -5
via mobile
Post by 1mofo on Jan 20, 2015 16:18:57 GMT -5
Thanks for the pointers I'm using hot stuff it seems to be working
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