Garberg
starting to shine!
Member since March 2016
Posts: 30
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Post by Garberg on Dec 20, 2016 16:13:53 GMT -5
Here's my "Getto-O" V2.0. A fan motor unbalanced by a bolt vibrates the bowl that is mounted on tre rubber bushings. It won't vibrate hard enough to run with pellets. If I put pellets in they'll all vibrate to the bottom of the bowl leaving the rocks on top. Maybe the vibrations aren't correctly directed. Probably not, but it gets the job done. The circuit board is an Arduino microcontroller that is connected to a temperature sensor. If the motor gets too hot the Arduino will shut it down until the motor cools down. ![](http://imageshack.com/a/img923/9615/6o0PAD.jpg) Here's a video of the rotary and vibe tumbler in action: Over the course of a little more than a year I have figured out that the process that works best for these tumblers is to tumble the rocks to shape in the rotary tumbler. When they got the right shape, let them tumble for two more weeks without any grit refill. Then I put them in the vibe tumbler with soap. No AO.
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Post by captbob on Dec 20, 2016 16:53:05 GMT -5
I like this guy! Welcome to the forum.
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Post by Jugglerguy on Dec 20, 2016 16:59:45 GMT -5
You're like a mad scientist! I love the vibe tumbler.
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Post by toiv0 on Dec 20, 2016 18:41:06 GMT -5
Any relation to Richard Handl? I think he was quite mad! Nice job on the vibe. What is the reason you don't use any AO for final polish? Your rocks came out quite nice though without it.
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Post by spiceman on Dec 20, 2016 20:49:14 GMT -5
It looks like the right idea. Maybe more testing before you revise.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,376
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Post by jamesp on Dec 20, 2016 22:32:31 GMT -5
Poetry in motion.
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Garberg
starting to shine!
Member since March 2016
Posts: 30
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Post by Garberg on Dec 21, 2016 1:14:29 GMT -5
Toiv0: Richard Handl? The guy who tried to trigger a nuvlear reaction in his kitchen? No. No relation. Fun guy though.
The reason why I don't use AO (or any other than 24 mesh grit) is that it doesn't make a difference on this equipment. Although it might take a day or two longer to get the shine without the AO it really makes no difference in the final result. Also, the AO seeps into every crack, nook and cranny. The sligtest, barely visible imperfection, becomes very visible with AO.
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Post by toiv0 on Dec 21, 2016 5:37:30 GMT -5
Toiv0: Richard Handl? The guy who tried to trigger a nuvlear reaction in his kitchen? No. No relation. Fun guy though. The reason why I don't use AO (or any other than 24 mesh grit) is that it doesn't make a difference on this equipment. Although it might take a day or two longer to get the shine without the AO it really makes no difference in the final result. Also, the AO seeps into every crack, nook and cranny. The sligtest, barely visible imperfection, becomes very visible with AO. Yep thats the Richard Handl, maybe you could power your machines with a homemade nuclear reactor.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,376
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Post by jamesp on Dec 21, 2016 8:51:42 GMT -5
Toiv0: Richard Handl? The guy who tried to trigger a nuvlear reaction in his kitchen? No. No relation. Fun guy though. The reason why I don't use AO (or any other than 24 mesh grit) is that it doesn't make a difference on this equipment. Although it might take a day or two longer to get the shine without the AO it really makes no difference in the final result. Also, the AO seeps into every crack, nook and cranny. The sligtest, barely visible imperfection, becomes very visible with AO. Interesting that you use 24 grit. In the rotary ? And then transfer to the vibe with the used AO from the rotary ? Can you explain ? With porous rocks I use sugar as a slurry thickener. The AO mixes with the sugar. After the rocks are done a soak them in hot water and the sugar dissolves. Makes removal of the trapped AO much easier.
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Garberg
starting to shine!
Member since March 2016
Posts: 30
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Post by Garberg on Dec 21, 2016 9:43:15 GMT -5
I only use 24 mesh grit and only in the rotary. I refill grit every week or so. When the rocks has the right shape I let them tumble for another two weeks with no grit refill. Since it tumbles with broken down grit it substitutes all other grit mesh. When that's done I clean the rocks and move them to the vibe tumbler with soap. No AO anywhere ever. Nothing but 24 mesh grit and soap.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,376
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Post by jamesp on Dec 21, 2016 10:26:56 GMT -5
I only use 24 mesh grit and only in the rotary. I refill grit every week or so. When the rocks has the right shape I let them tumble for another two weeks with no grit refill. Since it tumbles with broken down grit it substitutes all other grit mesh. When that's done I clean the rocks and move them to the vibe tumbler with soap. No AO anywhere ever. Nothing but 24 mesh grit and soap. Thanks for sharing Garberg. Interesting method. Tumbling interesting the way it breaks down abrasive to smaller sizes leading to a polish. Impressed with the controls and connections on your vibratory.
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Garberg
starting to shine!
Member since March 2016
Posts: 30
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Post by Garberg on Dec 21, 2016 11:49:16 GMT -5
Thanks! If I ever get more time on my hands than I can handle, I have an idea for a "Gett-O" V 3.0. With a better motor, preferably DC, and with an accelerometer connected to the Arduino you should be able to determine where the sweetspot is by changing the motors rpm while looking at the vibrations. Then, you could let the Arduino adjust the motor rpm so the vibrations stays in the sweetspot independent of the amount/size of rocks. What do you think? Worth trying?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,376
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Post by jamesp on Dec 21, 2016 13:20:48 GMT -5
I figured you might be capable of doing a DC drive. Variable RPM would be very helpful. RPM has a lot to do w/vibration. The blue vibe in the photos is a Viking. Check it out. 3600 RPM motor. Counter balance shaft is 1:1 so 3600 RPM also. Adjustments made with counter balances. Slow and awkward. Variable rPM better. www.flickr.com/photos/67205364@N06/sets/72157649367092502
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,376
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Post by jamesp on Dec 21, 2016 13:21:41 GMT -5
3000 -3600 RPM seems to be a common speed for vibe tumblers.
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ziggy
spending too much on rocks
![*](//storage.proboards.com/forum/images/stars/star_teal.png)
Member since June 2016
Posts: 483
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Post by ziggy on Jan 4, 2017 13:05:25 GMT -5
Here's my "Getto-O" V2.0. A fan motor unbalanced by a bolt vibrates the bowl that is mounted on tre rubber bushings. It won't vibrate hard enough to run with pellets. If I put pellets in they'll all vibrate to the bottom of the bowl leaving the rocks on top. Maybe the vibrations aren't correctly directed. Probably not, but it gets the job done. The circuit board is an Arduino microcontroller that is connected to a temperature sensor. If the motor gets too hot the Arduino will shut it down until the motor cools down. ![](http://imageshack.com/a/img923/9615/6o0PAD.jpg) Here's a video of the rotary and vibe tumbler in action: Over the course of a little more than a year I have figured out that the process that works best for these tumblers is to tumble the rocks to shape in the rotary tumbler. When they got the right shape, let them tumble for two more weeks without any grit refill. Then I put them in the vibe tumbler with soap. No AO. Hubby uses arduino as a programming language for his home made quadcopter. Lots of people use arduino mega boards to control quads while using external sensors. First time I've ever seen it used in the rock tumbling hobby
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