Deleted
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Post by Deleted on Jun 1, 2014 20:03:32 GMT -5
No. It's more elegant. GrokkedJust change programming to core drilling and you got it. Pretty good fit, really.
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Deleted
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Post by Deleted on Jun 1, 2014 20:06:21 GMT -5
My third core. A piece of marble given to me by @azrockgeek while on my epic journey to meet him and beefjello a year ago. 5" diameter core, approximately 8" tall. Marble cuts 5" cores at about 3 minutes per verticle inch. Next will be a series of images showing the progression from core to sphere-making preform.
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Post by Jugglerguy on Jun 1, 2014 20:13:24 GMT -5
I can't wait for the next pictures. Do you drill it again from the side to get something closer to a sphere? Do you run a hose on it while cutting?
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Deleted
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Post by Deleted on Jun 1, 2014 20:16:56 GMT -5
Will you now clamp your core in and core it on the horizontal plane? Dave
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nvkermit1512
starting to spend too much on rocks
Member since April 2014
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Post by nvkermit1512 on Jun 1, 2014 20:26:02 GMT -5
That's one sweet cherry pit picker
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jamesp
Cave Dweller
Member since October 2012
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Post by jamesp on Jun 1, 2014 20:37:04 GMT -5
THAT, is a core bit !
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Deleted
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Post by Deleted on Jun 1, 2014 20:41:29 GMT -5
I can't wait for the next pictures. Me either! Yes. A total of 5 cuts is, I believe, needed to make a preform that will go directly to the sphere machine. No hand grinding needed. I hope. Yes, I'll get pics next time I set it up. There is a 1/4" PVC hose running to the core drill. It feeds into the axle of the drill shaft and pours water directly into the center of the cut.I made a fitting at Home Depot that connects standard hose thread to 1/4" hose barb. The drill has a tiny ball valve. It sucks, but my hose bib is a ball valve so I control flow rate at the house. Cutting actions drives the water into the cut and out the outside. It's a very wet process. I'll be coring on warm days only... lol Yessir. Yes it is! I have 3", 4" & 5". Including all costs associated with this project I am in $800. I am aware of a commercial project that will have hydraulic feed priced at $2500 plus accessories. For a third of the price including accessories I'll hand feed the cuts! Will you now clamp your core in and core it on the horizontal plane? Dave Yes! Pics soon. Patience is requested. Please and thank you. I will illustrate it in pics later this week. I get off work at five 5 minutes from home so I plan to put in an hour or two every night that I dont have baseball games. Thanks to everybody for the comments.
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Post by rockpickerforever on Jun 1, 2014 21:56:15 GMT -5
Very cool, Scott! (I grokked you!). Your setup has plenny of travel, no problem there. So all the cores you've done so far have been five inch? What's the length of that particular coring drill?
Edit - take your time answering, I'm in no rush.
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herchenx
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Post by herchenx on Jun 1, 2014 22:19:10 GMT -5
I'm just getting my head around what you have going here. I'm just trying to get my new sphere maker to work at all so I'll watch from a distance to see what your cool rig is capable of. Looks good though Thanks for sharing your process
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rykk
spending too much on rocks
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Post by rykk on Jun 1, 2014 23:56:44 GMT -5
LOL - Actually, the term "grok" - though the definition above is mostly correct - comes from Robert Heinlein's sci-fi novel, "Stranger in a Strange Land". The Martian protagonist in the story used the term to describe a most intimate, visceral, spiritual, and complete understanding of a thing or person. Great book from the 1960's-ish. C-ya, Rick
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Deleted
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Post by Deleted on Jun 2, 2014 0:49:52 GMT -5
Very cool, Scott! (I grokked you!). Your setup has plenny of travel, no problem there. So all the cores you've done so far have been five inch? What's the length of that particular coring drill? Edit - take your time answering, I'm in no rush. The standard size for this style of coring bit is 14". My table give 13.5" of travel so my bits are maximized (accidentally, this was secondary to making this rigid)
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Deleted
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Post by Deleted on Jun 2, 2014 0:51:19 GMT -5
I'm just getting my head around what you have going here. I'm just trying to get my new sphere maker to work at all so I'll watch from a distance to see what your cool rig is capable of. Looks good though Thanks for sharing your process Yeah, baby steps. Took me awhile at the start too. Looks like your machine is good to about 3" spheres or so. Perhaps 4"?? correct?
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Post by 1dave on Jun 2, 2014 6:57:44 GMT -5
@shotgunner, you went overboard price-wise on that vise. It may get a little clumsy when you get to holding rounded sides. Perhaps V blocks?
They say don't cut metal with diamonds. Baloney! In years past I've punched those core bits through 1' re-bar almost as if it wasn't there and the blade was no worse for wear. You may revolutionize the sphere making industry!
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herchenx
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Member since January 2012
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Post by herchenx on Jun 2, 2014 9:44:58 GMT -5
I didn't think it would do over 2 or maybe 3 inches, but I really don't know yet.
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Good Earth
starting to spend too much on rocks
Member since November 2010
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Post by Good Earth on Jun 2, 2014 10:53:48 GMT -5
That machine is perfect! Does it's job without any fancy un-needed extras! I first saw an old timer named Wally Marx (rip) who owned the highway 50 rock shop in Fallon NV cutting cores for spheres. Wally was the guy who found and claimed Wonderstone mountain out there in the 1950's. I well remember visiting his shop, where he had all of the big pieces minus the cores in his $1/lb bin. Great way to find good cutting material too, since you can see the patterns inside the stone. Didn't mean to make this into a remembrance of Wally, but I think I'll post a photo of him. Fantastic job on the machine. This is a pic of the last time I saw Wally, next to his 48" saw.
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Post by mohs on Jun 2, 2014 11:14:21 GMT -5
cuore of rocknroll is a gunnersplace ! that really a fine project Scott thanks for process & pictures grok rock !
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jamesp
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Post by jamesp on Jun 2, 2014 20:27:51 GMT -5
Grokked !
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Deleted
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Post by Deleted on Jun 2, 2014 22:13:41 GMT -5
Good Earth, I am really glad you added that image. Thanks! It seems I brought new vocabulary to the forums! It was an accident. lol
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quartz
Cave Dweller
breakin' rocks in the hot sun
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Post by quartz on Jun 3, 2014 0:00:42 GMT -5
Building what you did, for doing what you are, looks pretty fine from here. Our compliments.
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panamark
fully equipped rock polisher
Member since September 2012
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Post by panamark on Jun 3, 2014 8:07:46 GMT -5
Scott, it looks great. It has been a treat to watch it unfold and work. I have been thinking on how you are going to recut the cores. It seems like it is going to be difficult to make a vice that will hold each successive step. I await with interest your continued progress. Thanks for sharing.
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