brybry
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Post by brybry on Dec 19, 2021 5:48:36 GMT -5
I've tried 80 SiC and 120/220 SiC in my vibes. I would almost swear the 120/220 SiC works better in the vibe than the 80 SiC.
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jamesp
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Post by jamesp on Dec 26, 2021 8:37:35 GMT -5
I've tried 80 SiC and 120/220 SiC in my vibes. I would almost swear the 120/220 SiC works better in the vibe than the 80 SiC. I never found a need to use coarse abrasive in a vibe on a regular basis since the rotary shapes rocks well and a vibe finishes them well. Do you have a need to use coarse abrasives in a vibe ?
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brybry
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Post by brybry on Dec 26, 2021 9:31:53 GMT -5
Not especially. On the rare occasion that I do it's to work the softer stuff. Typically it's 1-2 Tbls of 80 ( if any) to the 120/220. I've had good results from just the 120/220 that I only add a little 80 if I had some slightly stubborn stones or I'm pushing to finish quick due to time restraints.
I pushed some for Christmas presents, now that that's over I'm back to coasting along.
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ingawh
starting to spend too much on rocks
The rock wants to shine, I just help it get there
Member since February 2011
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Post by ingawh on Jan 1, 2022 13:46:53 GMT -5
jamesp. What can I say? I continue to live in awe of your skill and inventiveness. And your dog-with-a-bone determination to figure things out and build on each new improvement in your process - "good enough" is not good enough!
Hats off to you - not every artisan is an artist, but you truly are.
Happy New Year, my friend.
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jamesp
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Post by jamesp on Jan 2, 2022 10:22:08 GMT -5
jamesp. What can I say? I continue to live in awe of your skill and inventiveness. And your dog-with-a-bone determination to figure things out and build on each new improvement in your process - "good enough" is not good enough! Hats off to you - not every artisan is an artist, but you truly are. Happy New Year, my friend. Happy New Year ingawh. Thanks for the compliments and your revolutionary 2 step tumbles. Perhaps mad scientist may fit us better lol. check this out: The guys that tumble brass bullet casings are doing away with their vibratory tumblers and replacing them with ultrasonic cleaners. The ultrasonic units are way quicker and in most cases turn out a better finish. Ultrasound may work well with brass with cleaning fluid. It may be that vibratory tumblers could be made that will circulate rocks with abrasives at higher vibration rates using sound generators. This is a 50 watt vibration(sound)generator easily powered by most any stereo. It converts table tops, doors, windows, etc into bass speakers. Even small 5 watt generators powered by an iPad can turn a table top into a large speaker. At 50 watts this one should be able to make vibratory tumbler hopper vibrate when rigidly attached to hopper. It is basically the device that vibrates a bass speaker from 50hz to 300hz. But it is sealed and detached from speaker and often bolted to a chair or the floor to give body felt sound experience. The Lot-o vibrates at 50hz, thinking 100hz to 200hz might be appropriate for finishing rocks at high gentle rates. Imagine a Black Sabbath or Metallica tumbles ha. Use low pitch rock for AO 500 and opera for polish ? 26 watt sound generator with suction cup Two small sound generators mounted on old guitars
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Wooferhound
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Lortone QT66 and 3A
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Post by Wooferhound on Jan 2, 2022 13:23:23 GMT -5
Too Cool . . . Tumbling with Woofers
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jamesp
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Post by jamesp on Jan 2, 2022 17:46:29 GMT -5
Nice product name Wooferhound. Woofertumbler do you guys use sound generators ? Remember the Movie 'Earthquake' ? When working way thru school for a moving company we had the contract to move those auditorium shaking earthquake speakers. They were like 8' x 8' x 6', we had a lift to move them around.
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ingawh
starting to spend too much on rocks
The rock wants to shine, I just help it get there
Member since February 2011
Posts: 194
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Post by ingawh on Jan 2, 2022 17:59:41 GMT -5
jamesp. What can I say? I continue to live in awe of your skill and inventiveness. And your dog-with-a-bone determination to figure things out and build on each new improvement in your process - "good enough" is not good enough! Hats off to you - not every artisan is an artist, but you truly are. Happy New Year, my friend. Happy New Year ingawh. Thanks for the compliments and your revolutionary 2 step tumbles. Perhaps mad scientist may fit us better lol. check this out: The guys that tumble brass bullet casings are doing away with their vibratory tumblers and replacing them with ultrasonic cleaners. The ultrasonic units are way quicker and in most cases turn out a better finish. Ultrasound may work well with brass with cleaning fluid. It may be that vibratory tumblers could be made that will circulate rocks with abrasives at higher vibration rates using sound generators. This is a 50 watt vibration(sound)generator easily powered by most any stereo. It converts table tops, doors, windows, etc into bass speakers. Even small 5 watt generators powered by an iPad can turn a table top into a large speaker. At 50 watts this one should be able to make vibratory tumbler hopper vibrate when rigidly attached to hopper. It is basically the device that vibrates a bass speaker from 50hz to 300hz. But it is sealed and detached from speaker and often bolted to a chair or the floor to give body felt sound experience. The Lot-o vibrates at 50hz, thinking 100hz to 200hz might be appropriate for finishing rocks at high gentle rates. Imagine a Black Sabbath or Metallica tumbles ha. Use low pitch rock for AO 500 and opera for polish When you have researched exactly which cuts off of what album, and which soprano signing which aria, I expect you to publish, and win the Nobel Prize in physics.
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Wooferhound
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Lortone QT66 and 3A
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Post by Wooferhound on Jan 2, 2022 22:33:57 GMT -5
Nice product name Wooferhound . Woofertumbler do you guys use sound generators ? Remember the Movie 'Earthquake' ? When working way thru school for a moving company we had the contract to move those auditorium shaking earthquake speakers. They were like 8' x 8' x 6', we had a lift to move them around. I have a Function Generator (Tone Maker) on my workbench that goes all the way down into Subaudible frequencies and has waveshapes like: Square, Triangle, Sine and Sawtooth waves. I don't use it very much as listening to music is much more useful to me when doing tests. My Website . . .
A local sound company owned a couple of those Earthquake speakers and I got a chance to use them a few times, they could go down to very low frequencies and rather powerful too. He told me that when they used them in the movie theaters, They would tune them to the resonate frequency of the building at every location to get maximum effect.
You've got me going now ... I have an odd 15 inch woofer I could sacrifice to make an experimental Woofertumbler ?!
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jamesp
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Post by jamesp on Jan 3, 2022 13:34:41 GMT -5
Could you just sing soprano for 3 straight days till my tumbles are polished ingawh ? It is likely that the only Nobel prize I might receive would be a Masters in redneck jury rigging lol. Well great minds came out with these stick-on inexpensive sound(vibration) generators that can probably be suction cupped/bolted to the bottom of say a plastic bucket that just may turn the bucket into a adjustable high frequency vibratory tumbler without having to use a motor. Could it be ? Perhaps Wooferhound can apply his extensive sound knowledge to such a device...
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jamesp
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Member since October 2012
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Post by jamesp on Jan 3, 2022 14:29:45 GMT -5
Nice product name Wooferhound . Woofertumbler do you guys use sound generators ? Remember the Movie 'Earthquake' ? When working way thru school for a moving company we had the contract to move those auditorium shaking earthquake speakers. They were like 8' x 8' x 6', we had a lift to move them around. I have a Function Generator (Tone Maker) on my workbench that goes all the way down into Subaudible frequencies and has waveshapes like: Square, Triangle, Sine and Sawtooth waves. I don't use it very much as listening to music is much more useful to me when doing tests. My Website . . . A local sound company owned a couple of those Earthquake speakers and I got a chance to use them a few times, they could go down to very low frequencies and rather powerful too. He told me that when they used them in the movie theaters, They would tune them to the resonate frequency of the building at every location to get maximum effect. You've got me going now ... I have an odd 15 inch woofer I could sacrifice to make an experimental Woofertumbler ?!
Can I ask some questions Tim ? So is the back of a speaker basically a solenoid utilizing a permanent magnet for the external electrical field that moves the speaker cone back and forth ? You mentioned a tone maker/function generator, does it put out a varying current or voltage ?(I have hooked up speakers but never knew what type of power drives them.) Are these ***sound generators that convert flat surfaces to speakers simply the same as a vibration generator in the back of a speaker without having a speaker cone attached to it ? IMO sinusoidal 80hz to 120hz would be a good frequency for finish tumbling, but with a low amplitude of about 1/64" to 1/16" instead of moving a speaker cone 1/8" to 3/8". Thoughts ? I am aware that moving a big base speaker cone back and forth a 1/4" takes some serious wattage, wouldn't moving the cone say a smaller 1/32" take way less wattage ? And of course would a 50 watt sound generator at say 150hz with short amplitude have enough power to vibrate rocks thru a thin plastic hopper shell ? ? *** This is the 50 watt generators. Note the cork. This worries me that tumbling slurry would damage the cork ? i.e. they may not be hermetically sealed...can they handle potential moisture ? I found a couple of used units. Can I send one to you to connect to your tone generator ? To tinker with ? Might be easier than working with the 15" woofer. This is the unit:
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Post by RickB on Jan 3, 2022 16:56:25 GMT -5
Imagine a Black Sabbath or Metallica tumbles ha. Use low pitch rock for AO 500 and opera for polish ? Don't do a Rolling Stones tumble. The stones will still be old and wrinkled.
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ingawh
starting to spend too much on rocks
The rock wants to shine, I just help it get there
Member since February 2011
Posts: 194
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Post by ingawh on Jan 4, 2022 2:07:59 GMT -5
Hahahaha -- OMG, You have NO IDEA the devastation I could wreak!
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Wooferhound
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Lortone QT66 and 3A
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Post by Wooferhound on Jan 4, 2022 8:05:12 GMT -5
I have a Function Generator (Tone Maker) on my workbench that goes all the way down into Subaudible frequencies and has waveshapes like: Square, Triangle, Sine and Sawtooth waves. I don't use it very much as listening to music is much more useful to me when doing tests. My Website . . . A local sound company owned a couple of those Earthquake speakers and I got a chance to use them a few times, they could go down to very low frequencies and rather powerful too. He told me that when they used them in the movie theaters, They would tune them to the resonate frequency of the building at every location to get maximum effect. You've got me going now ... I have an odd 15 inch woofer I could sacrifice to make an experimental Woofertumbler ?!
Can I ask some questions Tim ? So is the back of a speaker basically a solenoid utilizing a permanent magnet for the external electrical field that moves the speaker cone back and forth ? You mentioned a tone maker/function generator, does it put out a varying current or voltage ?(I have hooked up speakers but never knew what type of power drives them.) Are these ***sound generators that convert flat surfaces to speakers simply the same as a vibration generator in the back of a speaker without having a speaker cone attached to it ? IMO sinusoidal 80hz to 120hz would be a good frequency for finish tumbling, but with a low amplitude of about 1/64" to 1/16" instead of moving a speaker cone 1/8" to 3/8". Thoughts ? I am aware that moving a big base speaker cone back and forth a 1/4" takes some serious wattage, wouldn't moving the cone say a smaller 1/32" take way less wattage ? And of course would a 50 watt sound generator at say 150hz with short amplitude have enough power to vibrate rocks thru a thin plastic hopper shell ? ? *** This is the 50 watt generators. Note the cork. This worries me that tumbling slurry would damage the cork ? i.e. they may not be hermetically sealed...can they handle potential moisture ? I found a couple of used units. Can I send one to you to connect to your tone generator ? To tinker with ? Might be easier than working with the 15" woofer.
I will answer your questions in detail later today , But what you are proposing is both simple and cheap plus a lot of the stuff needed is already found around the home. In the Music industry these speakers you are posting pictures of are called "Butt Kickers" because they are generally mounted on chairs under Butts. So the basic system involved in making a woofertumbler would be Function Generator > Amplifier > Butt Kicker > Rock Hopper on springs eBay is your friend finding a Function Generator Here are some cheap ones www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=xr2206&_sacat=0&LH_TitleDesc=0&_odkw=function+generator&_osacat=0Here are some inexpensive ones with more capability than you would ever need www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=gfg+8020&_sacat=0&LH_TitleDesc=0&_odkw=function+generator&_osacat=0The Amplifier can be from anything strong enough to power your Butt Kicker, most home stereos could do this task. A PA or Guitar amp would be fine. or once again, eBay can be quite helpful with 100 watt amplifier boards. The Speaker/Butt Kicker will have a Centered position it likes to be at. It also will need to ba able to Push as well as Pull the rock hopper. So the weight of the rocks will need to be supported on springs so the Kicker will not be Bottomed Out. Butt Kickers are designed to work against their Own Magnet Weight to make the vibration, but you can get more efficient action if you mount the back of them down, then dig the cork off the front till you get to the piston that is mounted to the coil, then connect the piston to your Rock Hopper. Will have a design or prototype soon . . .
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jamesp
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Member since October 2012
Posts: 36,155
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Post by jamesp on Jan 4, 2022 8:18:55 GMT -5
Imagine a Black Sabbath or Metallica tumbles ha. Use low pitch rock for AO 500 and opera for polish ? Don't do a Rolling Stones tumble. The stones will still be old and wrinkled. You ain't right Rick.
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Post by Son Of Beach on Jan 4, 2022 8:33:59 GMT -5
You are the kind of guys who make potato guns, aren't ya?
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jamesp
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Posts: 36,155
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Post by jamesp on Jan 4, 2022 8:50:09 GMT -5
Hahahaha -- OMG, You have NO IDEA the devastation I could wreak! No worries, the rocks can't be offended if off note, they don't hear well . Just don't shatter them !
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jamesp
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Post by jamesp on Jan 4, 2022 8:52:04 GMT -5
You are the kind of guys who make potato guns, aren't ya? Had an 11 footer Son Of Beach, it would send a potato over 1800 feet.
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jamesp
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Posts: 36,155
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Post by jamesp on Jan 4, 2022 9:57:07 GMT -5
Can I ask some questions Tim ? So is the back of a speaker basically a solenoid utilizing a permanent magnet for the external electrical field that moves the speaker cone back and forth ? You mentioned a tone maker/function generator, does it put out a varying current or voltage ?(I have hooked up speakers but never knew what type of power drives them.) Are these ***sound generators that convert flat surfaces to speakers simply the same as a vibration generator in the back of a speaker without having a speaker cone attached to it ? IMO sinusoidal 80hz to 120hz would be a good frequency for finish tumbling, but with a low amplitude of about 1/64" to 1/16" instead of moving a speaker cone 1/8" to 3/8". Thoughts ? I am aware that moving a big base speaker cone back and forth a 1/4" takes some serious wattage, wouldn't moving the cone say a smaller 1/32" take way less wattage ? And of course would a 50 watt sound generator at say 150hz with short amplitude have enough power to vibrate rocks thru a thin plastic hopper shell ? ? *** This is the 50 watt generators. Note the cork. This worries me that tumbling slurry would damage the cork ? i.e. they may not be hermetically sealed...can they handle potential moisture ? I found a couple of used units. Can I send one to you to connect to your tone generator ? To tinker with ? Might be easier than working with the 15" woofer. I will answer your questions in detail later today , But what you are proposing is both simple and cheap plus a lot of the stuff needed is already found around the home. In the Music industry these speakers you are posting pictures of are called "Butt Kickers" because they are generally mounted on chairs under Butts. So the basic system involved in making a woofertumbler would be Function Generator > Amplifier > Butt Kicker > Rock Hopper on springs eBay is your friend finding a Function Generator Here are some cheap ones www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=xr2206&_sacat=0&LH_TitleDesc=0&_odkw=function+generator&_osacat=0Here are some inexpensive ones with more capability than you would ever need www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=gfg+8020&_sacat=0&LH_TitleDesc=0&_odkw=function+generator&_osacat=0The Amplifier can be from anything strong enough to power your Butt Kicker, most home stereos could do this task. A PA or Guitar amp would be fine. or once again, eBay can be quite helpful with 100 watt amplifier boards. The Speaker/Butt Kicker will have a Centered position it likes to be at. It also will need to ba able to Push as well as Pull the rock hopper. So the weight of the rocks will need to be supported on springs so the Kicker will not be Bottomed Out. Butt Kickers are designed to work against their Own Magnet Weight to make the vibration, but you can get more efficient action if you mount the back of them down, then dig the cork off the front till you get to the piston that is mounted to the coil, then connect the piston to your Rock Hopper. Will have a design or prototype soon . . . Wow, that butt kicker chair must have some serious vibration forces. Brilliant Wooferhound. Woofers have serious vibration forces, they shake houses and sternums, looks like there is enough power. I'll toss in any help you need. The 50 watt Aurosound generators ought to arrive in 10 days. You should have it in your hands a few days after that being you are just across the state line. My input: Consider round topped(damped) sine waves, they have softer reversals, sharp tipped sine waves are more capable of damaging rocks due to sharp reversals.(my findings) Guessing this signal generators you found on EBAY would have adjustable amplitude ? 50 to 300 vibrations per second should easily cover the range. I see you suggested a 100 watt amplifier. Guessing that would be adjustable from 0 to 100 watts ? I have no concept of power needs. The less the better !
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Wooferhound
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Lortone QT66 and 3A
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Post by Wooferhound on Jan 4, 2022 10:25:27 GMT -5
That fancy Function Generator would act as the main Control Panel in the setup I am describing above.
You could even use this rig with Piezo Elements to make Ultrasonic Cleaners ect. because of the wide frequency range of 0.2 Hz ~ 2 MHz .
But I never made a Potato Gun , looked at the plans and saw the video though . . .
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