Dave Austin
starting to spend too much on rocks
Member since January 2008
Posts: 104
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Post by Dave Austin on Oct 20, 2009 5:35:43 GMT -5
Hi all, when we step into uncharted waters (for us that is) we like to share our experiences both good and bad. We have started to teach ourselves how to make crosses out of gemstone, green aventurine to start with. We have made a blog post about our adventures so far and welcome any tips or tricks that anyone has to offer. The post can be found here: www.roughrocks.co.uk/?p=376 |
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Post by Toad on Oct 20, 2009 7:34:54 GMT -5
Maybe this is the other side of the pond thing, but aren't those crosses? I always thought a crucifix had Jesus hanging on it. In any case, there are several folks here that have done crosses, hopefully they'll chime in here.
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Dave Austin
starting to spend too much on rocks
Member since January 2008
Posts: 104
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Post by Dave Austin on Oct 20, 2009 12:00:43 GMT -5
Thanks Toad,
glad someone is on the ball, I have modified the post.
best
Dave
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Post by Toad on Oct 20, 2009 12:11:49 GMT -5
No problem, you might want to do some searches on the cabbing board and maybe rock tumbling photos. Todd
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Post by Jack ( Yorkshire) on Oct 21, 2009 3:11:10 GMT -5
Hi Dave I think It was Tonyterain that made a lot of crosses a Celtic cross and quite nice I will try to find it for you You might be interested in this simple gadget that helps you to stop undercutting (it feeds the stone directly to thecenter of the blade )  Its just a bit of sheet steel with a slit in it set at the right angle Jack Yorkshire uk |
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Post by Jack ( Yorkshire) on Oct 21, 2009 3:24:00 GMT -5
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Post by Hard Rock Cafe on Oct 21, 2009 13:14:12 GMT -5
Great idea Jack! Of course that will work!
Chuck
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Dave Austin
starting to spend too much on rocks
Member since January 2008
Posts: 104
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Post by Dave Austin on Oct 21, 2009 16:42:06 GMT -5
Hi Jack,
well as they say the simplest ideas are the best, and what you have shared with us is great thanks very much and for the link too, those crosses look great.
Did you pick up that link I sent you about 25kg's of 80 grit from Manchester Minerals?
Cheers
Dave
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Post by Jack ( Yorkshire) on Oct 22, 2009 2:13:11 GMT -5
Hi Dave ,
Yes It is a simple Idea I thought it out myself , then found out it was a standard practice thing , OH drat all that wasted brain power !!!
Thanks for the Grit prices MM are dearer
I Got 25 Kgs for £53 (delivered) from Nobles abrasives Dronefield Nr Sheffield if your interested (or anyone else)
Have a good day and look forward to seeing some pics of nice cross 's soon !
Jack
Yorkshire uk
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Post by Toad on Oct 22, 2009 7:11:54 GMT -5
Sorry, but I'm not understanding what the angle does in cutting the stone. Can someone explain?
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snuffy
Cave Dweller 
Member since May 2009
Posts: 4,319
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Post by snuffy on Oct 22, 2009 9:08:54 GMT -5
Im glad I saw this thread. I made some arrowheads and I had the problem of undercutting on my notches. This will solve that. Thanks,
snuffy
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Post by Toad on Oct 22, 2009 9:11:38 GMT -5
Never mind, I figured it out.
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Post by Jack ( Yorkshire) on Oct 23, 2009 2:24:35 GMT -5
Hi Toad,
If you cut a piece of stone on the table you push it through the blade OVER the axis center
So the botom of the slab is cut first at a angle of the curveture of the blade.
If you cutting crosses into a right angle corner on the table the cut will be a lot further through on the bottom than the top (giving a weak and unsightly cross)
With the angle plate you cut dead square into slab , getting acurate cuts across the slab
As you are cutting directly to the dead center of the blade
Hope this helps ?
Have a good day
Jack
Yorkshire UK
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bushmanbilly
Cave Dweller
Member since October 2008
Posts: 4,719 
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Post by bushmanbilly on Oct 26, 2009 10:35:51 GMT -5
Thanks for the tut. Have to give it a try.
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Post by Toad on Oct 26, 2009 10:39:06 GMT -5
That does help, thanks. So what id the angle of the plate?
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