Mark K
Cave Dweller 
Member since April 2012
Posts: 2,818 
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Post by Mark K on Jun 22, 2023 11:37:06 GMT -5
Clamps are important. They keep the two parts together. Otherwise the parts will find every excuse to separate.
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Post by catmandewe on Jun 22, 2023 14:25:06 GMT -5
Perfect timing on this post. I've been researching and reading past threads about this very thing. I was going to post a similar question just because glue has changed so much in the last few years but it seems most are doing it the same as in the past. It also seems like the brand of carpenters glue doesn't matter much. I did see people talk about the original Gorilla Glue for slightly irregular surfaces as it foams up some and fills in some gaps. One method I didn't see mentioned her is epoxy or JB Weld. I think that might be better for rocks that don't have a flat surface. I saw a posting from Cigar Box Rocks where they use JB Weld and then just cut through it at the end. catmandewe do you use a solid steel 2x2 or a piece of square tube? Is it ok to cut into the wood with the slab saw blade? I wouldn't think it would hurt it but just want to make sure. I use a piece of 2x2 square tube, I dont want to cut right up to the tube so I release it with a torch that I point right down the center of the tube. I have also used superglue on wood but it adheres much better with metal. I cut right to the wood with the slab saw, sometimes it cuts the wood also, doesnt really make much difference. I will not use waterglass anymore as I have had several rocks release in mid cut using waterglass, never had that problem with elmers glue or carpenters wood glue. I have used gorilla glue but I think its overkill for what it needs to do. Tony |
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,622
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Post by dillonf on Jun 22, 2023 20:17:31 GMT -5
I discussed this with Tony at Q. I got some wood glue at the flea market and it works great. I run the cut rocks under my 140 degree hot water and when they are good and clean, I often run them through my dishwasher. They are perfectly clean. I glue the 1x2 or 2x2 or 2x4 to the rock and clamp it together. Then they sit for a day or so and I take them out of the clamps and set them aside for at least a few days. Over the winter I did over 100 rocks so I did not have to hurry. I still have a boat load left. To get them off I experimented with soaking in water, cutting right next to the rock on the table saw, and boiling the hell out of it. So far, boiling the rocks off seems to work the best. I bought a crummy old pan for it and that is all it is used for. Thanks Mark! I have some old pots laying about! I like the idea of gluing a bunch up ahead of time too! |
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,622
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Post by dillonf on Jun 22, 2023 20:20:35 GMT -5
rockbrain Good questions. I didn't think of those!
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Mark K
Cave Dweller
Member since April 2012
Posts: 2,818
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Post by Mark K on Jun 22, 2023 21:07:51 GMT -5
If you are going to boil them, you should have a good towel at least or better yet, a good pair of gloves to handle the very hot slab and wood combos. The ones that don't fall off in the water (which is most of them) will need to be twisted, not pried off of the wood. If you twist, you will not have as good of a chance of breaking solid slabs as if you try to pry them off like a gorilla. If you can't twist them off, give them more time. If you have to stop, leave them in water until the next time you can mess with them.
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dillonf
fully equipped rock polisher
Hounding and tumbling
Member since February 2022
Posts: 1,622
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Post by dillonf on Jun 22, 2023 21:12:20 GMT -5
If you are going to boil them, you should have a good towel at least or better yet, a good pair of gloves to handle the very hot slab and wood combos. The ones that don't fall off in the water (which is most of them) will need to be twisted, not pried off of the wood. If you twist, you will not have as good of a chance of breaking solid slabs as if you try to pry them off like a gorilla. If you can't twist them off, give them more time. If you have to stop, leave them in water until the next time you can mess with them. Got it! |
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Nov 14, 2024 18:17:57 GMT -5
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
