jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Nov 17, 2017 6:40:32 GMT -5
Makes you wonder if notjustone will be unloading... I’m thinking some distracted forklift operation, maybe he’ll be texting while driving This day and age bosses like to have their asses kissed. Maybe he should drive and brown nose at the same time so the boss will forgive his mistake.
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Post by youp50 on Nov 17, 2017 6:41:48 GMT -5
Thanks
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Nov 17, 2017 10:07:16 GMT -5
notjustone , they use those big SiC grinding wheels where you work? we used to have grinders with about 36 inch 3 inch thick wheels. but got rid of them when 1 of the wheels exploded and almost killed the operator. but ide guess they were a.o. wheels. its all done with big belt grinders now.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Nov 17, 2017 14:35:49 GMT -5
Let's change that to 2 to 2.5 years. I just did some wear measurements. the coarse grit wears a good bit faster. Need sch 80 pipe, the pipe is the weak spot. Plus they grey plastic wears slower than the white, it is softer. Softer wears slower.
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Post by youp50 on Nov 17, 2017 17:21:47 GMT -5
Just ordered a 20 footer 6 inch sch 80. I will show you the barrels as I finish them. I am no engineer, but I are a pipefitter. As you may or may not continue to make barrels of Sch 40, not all sch 40 is created equal. I would avoid 'foam core' pipe and insist on 'solid core'. A slight increase in cost.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Nov 17, 2017 18:12:19 GMT -5
Just ordered a 20 footer 6 inch sch 80. I will show you the barrels as I finish them. I am no engineer, but I are a pipefitter. As you may or may not continue to make barrels of Sch 40, not all sch 40 is created equal. I would avoid 'foam core' pipe and insist on 'solid core'. A slight increase in cost. I searched far and wide for scrap sch 80 6 inch. Had enough solid sch 40 and used it. I bought the couplings and 6-4 bushings and end caps in 10 packs and got them cheap. My tumbler holds 5 barrels, length of barrels targeted. So these 5 wear out i got 5 more sets of fittings. The grey couplings are actually Carlon electrical conduit fittings. $8 each basically sch 80 fittings for cheap www.ebay.com/itm/Carlon-6-Non-Metallic-Coupling-6-Inch-PVC-E940R-New-old-Stock-Lot-of-5/132399215988?hash=item1ed39bb574:g:LAsAAOSwHwZaC0O2The sch 40 pipe has already worn thru in a 2 inch band under the grey coupling at bushing end. The middle of the barrel is a good bit thicker, less wear there. They wear in a band at the ends because the walls make the rocks scallop the pipe at the ends. Next set will be sch 80. whatever you do, fill in or add something to protect the cap on the inside, it wears fastest in the center. That grey plate I added is not hardly worn, sold on the grey plastic. If I had a lathe and some sch 80 plate I would have turned it to fit in one of the Carlon couplings instead of using a cap. Like 3/4" thick. And fill in the gussets of the bushings with non water base silicon caulk before you get them dirty. No match here for a pipe fitter. I have built a few PVC tumbling barrels 6 - 8 - 10 inch, like the 6" best with 4 inch mouth. Better if you can use sch 80 4" for the mouth. I remove the sch 40 4" and replace/re-glue new stub when it wears thin. Surgical procedure. It is also early to wear out. Found a 4 foot stick for $55, that will make 5 of my short barrels www.ebay.com/itm/6-in-PVC-Pipe-Schedule-80-Cut-Pieces-1-2-3-4-or-5-Ft-S80-6inch-Gray-PVC-Pipe/252341586916?ssPageName=STRK%3AMEBIDX%3AIT&var=551186717197&_trksid=p2057872.m2749.l2649Please post your project, anxious to see what you build. I sure like having multiple smaller barrels than a few long barrels.
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Post by youp50 on Nov 17, 2017 20:05:02 GMT -5
The plan is sch 80 6 on barrels. 6 inch Fernco caps. Spiral internals, built to bring rocks to the center of the barrel. Another to pile on one end. The third plain. I have 3 foot piece of 8 in to build external bushings to run on. Trying to avoid the 4 in. I have some coal chute liner board for inside wear plates to protect the caps.
A winters project. Going hunting with Grandkids next week... pulling the plug on the tumblers. Roll on...
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zekester55
starting to spend too much on rocks
Member since March 2017
Posts: 111
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Post by zekester55 on Nov 18, 2017 5:44:38 GMT -5
Liners:
I recently used some Devcon Flexane to repair the inside of a leaking Covington barrel. Works like a champ, I used Flexane 80, which is their putty version more viscous. Next time I'd be more lilley to go with the liquid form. Stuff is expensive though.
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Post by youp50 on Nov 18, 2017 7:42:52 GMT -5
Liners: I recently used some Devcon Flexane to repair the inside of a leaking Covington barrel. Works like a champ, I used Flexane 80, which is their putty version more viscous. Next time I'd be more lilley to go with the liquid form. Stuff is expensive though. Did you buy the primer? I do not recall the color. One primer for steel, then a second for rubber, only the second for rubber. That is some pretty serious stuff to avoid breathing. If you did not use primer I would like to know how long the patch stays on.
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zekester55
starting to spend too much on rocks
Member since March 2017
Posts: 111
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Post by zekester55 on Nov 18, 2017 9:51:40 GMT -5
I did buy the primer, and went with the rubber one. The Covington barrel is unique in that it is vinyl molded around an aluminum disc to which the shaft is attached (this is a conical shaped barrel, and rotates at an angle). My barrel had worn through at the base, so there was some aluminum showing, but the primary seating surface for the Flexane was the vinyl barrel itself, so I used the primer for rubber. I only use the Covington for stage 1 rough, so it will likely wear quicker. It has been rolling for about a week and a half thus far since the repair. Based on what I've seen so far, I do not believe that the patch will separate, I suspect it will eventually wear through as the original material did.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,155
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Post by jamesp on Nov 18, 2017 10:29:02 GMT -5
I did buy the primer, and went with the rubber one. The Covington barrel is unique in that it is vinyl molded around an aluminum disc to which the shaft is attached (this is a conical shaped barrel, and rotates at an angle). My barrel had worn through at the base, so there was some aluminum showing, but the primary seating surface for the Flexane was the vinyl barrel itself, so I used the primer for rubber. I only use the Covington for stage 1 rough, so it will likely wear quicker. It has been rolling for about a week and a half thus far since the repair. Based on what I've seen so far, I do not believe that the patch will separate, I suspect it will eventually wear through as the original material did. When my PVC barrels wear thru at say the weakest point they are throw away. A repair patch can be simply glued on with a piece of PVC but the whole barrel is close to failing in other areas. i have a little graveyard of worn out PVC barrels lol. May they RIP
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Post by catmandewe on Nov 18, 2017 11:51:47 GMT -5
I picked up a tumbler in N Cal that would turn 4 55 gal drums, Mikeyrocks bought it from me. I really wanted to play with that one but he snagged it right up. Tony
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Nov 18, 2017 13:18:17 GMT -5
I picked up a tumbler in N Cal that would turn 4 55 gal drums, Mikeyrocks bought it from me. I really wanted to play with that one but he snagged it right up. Tony I'm sure someone turning large quantities like that would benefit from the cheaper bulk grit.
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