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2 headed machine vrs 3 headed machine

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vwfence has rocks in the head Member since January 2013 Posts: 567	2 headed machine vrs 3 headed machine Nov 4, 2022 9:14:26 GMT -5 RWA3006 likes this Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by vwfence on Nov 4, 2022 9:14:26 GMT -5 I like to hear opinions on which machine is best in the opinion of the members here and the pro's and cons of each

Rockoonz
misunderstood rock expert

Member since August 2009
Posts: 11,504

2 headed machine vrs 3 headed machine Nov 6, 2022 3:26:32 GMT -5 Roger, DirtCleaner, and 1 more like this

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Post by Rockoonz on Nov 6, 2022 3:26:32 GMT -5

Definitely the 3 head sphere machines are easier to deal with, the 2 head machines have to be coaxed into keeping the random motion going that you need to get a nicely rounded sphere.

“You preachers of equality, the tyrannomania of impotence clamors thus out of you for equality: your most secret ambitions to be tyrants thus shroud themselves in words of virtue. Aggrieved conceit, repressed envy—perhaps the conceit and envy of your fathers—erupt from you as a flame and as the frenzy of revenge.”
—Friedrich Nietzsche

Roger
fully equipped rock polisher

Member since January 2013
Posts: 1,487

2 headed machine vrs 3 headed machine Nov 25, 2022 17:28:35 GMT -5 hummingbirdstones and rmf like this

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Post by Roger on Nov 25, 2022 17:28:35 GMT -5

As Rockoonz said, I also found the three head machines are much simpler to make actual round spheres. The two head machines require a lot more vigilance and adjusting to ensure you are making round balls and not slightly oblong ones. The three headed machines also cut and polish faster, which was always a factor for me. I like to bang them out quickly.

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callmerob starting to spend too much on rocks I really like a dirt road Member since September 2019 Posts: 143	2 headed machine vrs 3 headed machine Nov 30, 2022 17:38:05 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by callmerob on Nov 30, 2022 17:38:05 GMT -5 2 heads good. 3 heads better.
	- Rob.

herb spending too much on rocks Member since November 2011 Posts: 476	2 headed machine vrs 3 headed machine Dec 5, 2022 11:14:07 GMT -5 via mobile Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by herb on Dec 5, 2022 11:14:07 GMT -5 Nov 30, 2022 18:15:32 GMT -5 @hefty said: What about 1 head? Wow! Would have never thought of using a core bit that way. Good resourcfulness, but that is a lot of work to get a tiny sphere
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Rockoonz
misunderstood rock expert

Member since August 2009
Posts: 11,504

2 headed machine vrs 3 headed machine Dec 5, 2022 13:23:52 GMT -5 Brian likes this

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Post by Rockoonz on Dec 5, 2022 13:23:52 GMT -5

@hefty herb some of the first spheres were finished with cups filled with grit slurry mounted on flat laps, using your hand on top of it to create the random pattern. An example to the extreme starts around the 8m mark of the video below, though the entire video is pretty intriguing.

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2 headed machine vrs 3 headed machine

Post by vwfence on Nov 4, 2022 9:14:26 GMT -5

Post by Rockoonz on Nov 6, 2022 3:26:32 GMT -5

Post by Roger on Nov 25, 2022 17:28:35 GMT -5

Post by callmerob on Nov 30, 2022 17:38:05 GMT -5

Post by herb on Dec 5, 2022 11:14:07 GMT -5

Post by Rockoonz on Dec 5, 2022 13:23:52 GMT -5

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