jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 23, 2018 20:46:18 GMT -5
These are my beloved HDPE tumbling barrels. Love these things. 90 RPM for coarse SiC grades. 30 RPM for fine SiC grades. Instead of adding more material as the rocks wear to make up lost volume I simply dump the rocks into a slightly shorter barrel. I mostly use the 6 inch barrels on the lower shelf. The big 8 inch barrels are also stepped down in length and are used for big projects. The lowest shelf are ready to move to the vibe. ![](https://c2.staticflickr.com/2/1854/43958415855_3faebf4aaa_b.jpg) ![](https://c2.staticflickr.com/2/1976/44819472772_338a335fd1_b.jpg) ![](https://c2.staticflickr.com/2/1928/43958424095_f73696f955_b.jpg) Glass sticks just out of 90 RPM. You can thank clay slurry for them not breaking. Running all glass with no ceramics or pea gravel. ![](https://c2.staticflickr.com/2/1905/30996668968_6e598f90db_c.jpg) ![](https://c2.staticflickr.com/2/1845/43057737450_b5499477d7_c.jpg)
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Post by MsAli on Sept 23, 2018 21:09:53 GMT -5
It's like candy!
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Post by Pat on Sept 23, 2018 21:19:42 GMT -5
Your barrels are nice, but I really prefer your beautiful glass 😀
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Post by hummingbirdstones on Sept 23, 2018 21:35:32 GMT -5
Those sticks are so cute!
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mossyrockhound
fully equipped rock polisher
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Member since January 2011
Posts: 1,280
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Post by mossyrockhound on Sept 23, 2018 21:40:08 GMT -5
Those sticks are wild and crazy. (Psychedelic? )
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Post by fernwood on Sept 24, 2018 4:08:28 GMT -5
Nice barrels. I like that method. The glass is great as always.
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Post by TheRock on Sept 24, 2018 5:22:08 GMT -5
Pretty cool JP I may have to integrate a High Speed Tier to y monstrosity so I can Turn -N- Burn
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goatgrinder
spending too much on rocks
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Make mine a man cave
Member since January 2017
Posts: 368
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Post by goatgrinder on Sept 24, 2018 13:58:41 GMT -5
I hope that you pay that dog in the picture well for keeping your barrels clean.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 27, 2018 2:16:47 GMT -5
Thanks you guys. The tumbling sure helps test the glass for mechanical properties. Melting several dozen colors of glass presents problems with some color combinations. Melting glass from other sources like vases and slag can have stability issues. Some color combos just don't melt solid. Running test melts thru the tumbler weeds out the color combinations that melt brittle at the same time cool tumbles generated. The benefit of running all glass is it is all close to the same hardness so the abrasives and tumbling methods can easily be optimized. Fast tumbles, less waste, few defects in glass and it is easy to melt to tumble shape or is easy to shape/saw to tumble shapes. goatgrinder, there was a time when sugar was used as a thickener and yes the barrels stayed unusually clean.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 27, 2018 2:57:52 GMT -5
Pretty cool JP I may have to integrate a High Speed Tier to y monstrosity so I can Turn -N- Burn Yes Duke, you should build you a fast spinner and I suggest the 6 inch ID HDPE(use SDR 17) barrel at 90 RPM with clay for doing some fast and quiet coarse work. Using the 6" end cap and 6 to 4 reducer fittings full size(without cutting shorter) welded together makes a barrel about 18 inches long and is a real workhorse. Take one barrel like this on a small homemade tumbler spinning it at 90 RPM and add 2 tablespoons of coarse grit every day or two. Total clean out every week. Have extra rock on hand for fast volume reduction ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) . Maintain good slurry thickness. It will keep up with 3 - 12 pound Lortone factory tumblers(or a single 40 pound barrel) with a lot less hassle putzing around cleaning those lids every time you open them. The Lortone lids and especially the Thumler lid for that matter. Speed kills in the tumbling arena. Fast spinning 6 inch I.D. barrels for 'average' tumble size rocks is optimum size. Small coarse grit additions on much shorter intervals. The grit is easily gone in 24 hours with half decent slurry even at a protective 85% barrel fill. This is an 8 to 4. But a 6 to 4 has about the same proportions when fittings are left full length. The snoot needs to be cut shorter for the Fernco cap. Probably holds 10 to 12 pounds. ![(party)](//storage.proboards.com/1258779/images/PsELmPUKrCpOcOwOprWp.gif) ![](https://c1.staticflickr.com/5/4597/38371697914_fa4cfdc8a5.jpg)
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 27, 2018 3:15:41 GMT -5
No edits to the above post. Done this too many times by now. The above HDPE barrels have now done over 100 coarse batches of glass in an average time of 4 days. From this: ![](https://c2.staticflickr.com/2/1925/30007446387_6014483a48_c.jpg) To this much shaping in 4 days: ![](https://c2.staticflickr.com/2/1941/43131893040_d3f9b8196c_b.jpg)
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 27, 2018 3:32:06 GMT -5
3/4 cup of SiC 60 at start and 1/2 cup of SiC 60 at day 2 for the glass above. At 90 RPM and 85% barrel fill no slurry thickener is mandatory. I suggest it for lubrication and cohesive forces. At 90 RPM there is no need to thicken the water to 'float' the grit. Thorough mixing WILL happen at that speed. 90 RPM is fast enough to float this 3/8" SiC, much less #8-#16-#30-#46. ![](https://c1.staticflickr.com/5/4108/35330358240_0f56057cdc_c.jpg)
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 27, 2018 3:36:32 GMT -5
Warning: Best to turn tumbler off when removing barrels from tumbler at higher speeds like 90 RPM. And beware of nip points when in operation.
Be aware that no manufacturer would ever sell a high speed rock tumbler due to liability issues. That is why they are unavailable at your local tumbling supply company.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 27, 2018 3:42:02 GMT -5
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Post by toiv0 on Sept 27, 2018 6:52:52 GMT -5
I hope you ate your wheaties if that lawn mower is self propelled. For the bamboo?
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Post by TheRock on Sept 27, 2018 14:00:47 GMT -5
That's I-N-S-A-N-E MORE POWER ARRRG ARRRRRRRRGGG ARRRRGGGGGG!
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Post by TheRock on Sept 27, 2018 20:40:09 GMT -5
Where does the NITRUS BOTTLE mount at?
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,353
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Post by jamesp on Sept 28, 2018 9:57:08 GMT -5
I hope you ate your wheaties if that lawn mower is self propelled. For the bamboo? I had a fellow drive his D6 Cat into a grove of 3" bamboo to knock it down and kill the grove. It raised the D6 off the ground and stopped it. Takes a real heavy piece of equipment, and the canes come up thru the undercarriage and spear the operator. Easiest way to eradicate a stand is to set the bamboo leaves collected on the ground on fire. That easily kills the bamboo and makes it drop it's leaves. Then set those leaves on fire after you have sprayed an accelerant high on the canes hoping for a high hot fire to burn them on a high wind dry day. If you can't get the tall canes to catch fire and burn then you wait 3 years for them to get brittle and dry and then send the D6 in. A military flame thrower with a 100 gallons of fuel would be the best way.
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