oldguy Posted June 19, 2011 Share Posted June 19, 2011 (edited) Edited June 19, 2011 by oldguy Link to comment Share on other sites More sharing options...
dagabu Posted June 19, 2011 Share Posted June 19, 2011 Sexy! Nice job OG! -dag Link to comment Share on other sites More sharing options...
Peret Posted June 19, 2011 Share Posted June 19, 2011 That is such a work of art, it seems a pity to use it and get it all scuffed up. Link to comment Share on other sites More sharing options...
oldguy Posted June 19, 2011 Author Share Posted June 19, 2011 (edited) That is such a work of art, it seems a pity to use it and get it all scuffed up. I painted that one with Krylon spray paint, just for the hell of it.I will not do that again, because just as you say rolling loaded it will get scuffed up. Edited June 19, 2011 by oldguy Link to comment Share on other sites More sharing options...
stckmndn Posted June 21, 2011 Share Posted June 21, 2011 What size and type of milling media will you be using with this jar? Link to comment Share on other sites More sharing options...
oldguy Posted June 22, 2011 Author Share Posted June 22, 2011 http://cgi.ebay.com/Zirconia-M-Grinding-Media-1-2-20-pounds-Used-/160597234483?pt=LH_DefaultDomain_0&hash=item2564575333 Make him an OFFER, he will dicker. Link to comment Share on other sites More sharing options...
stckmndn Posted June 22, 2011 Share Posted June 22, 2011 I already bought 25 lbs (new) from him in the 1/2" size last week. Was curious if you were going to use a 3/4' or 1' size for this size jar. Link to comment Share on other sites More sharing options...
oldguy Posted June 22, 2011 Author Share Posted June 22, 2011 I already bought 25 lbs (new) from him in the 1/2" size last week. Was curious if you were going to use a 3/4' or 1' size for this size jar. I use either 1/2 or 5/8ths Zirc M media in all my jars for everything.Thats from 3 to 50 lb content media + chems combined. Link to comment Share on other sites More sharing options...
stckmndn Posted June 22, 2011 Share Posted June 22, 2011 Thanks for the clarification. That's very helpful. Link to comment Share on other sites More sharing options...
guntoteninfadel Posted June 22, 2011 Share Posted June 22, 2011 Is it not problematic with the lip getting chems out of the jar? Link to comment Share on other sites More sharing options...
dagabu Posted June 22, 2011 Share Posted June 22, 2011 Is it not problematic with the lip getting chems out of the jar? I dont think that he has a lip inside the jar, just the outside. -dag Link to comment Share on other sites More sharing options...
oldguy Posted June 22, 2011 Author Share Posted June 22, 2011 (edited) The neck ring the cap fits on is flush mounted inside the jar. You take a router with a 1/4 round bit & use it to turn the inside edge 1/4 round.(before you solvent weld it in place)That way both chems & media pour right out, without any hang-ups. The outer surface face of the neck ring in flat.Reason being, you put a round flat pvc plate inside the rubber cap. With the jar neck opening facing up.You place the rubber cap over the neck ring (with the round flat plate inside the rubber cap), press down on the cap for a tight fit against the flat face of the protruding neck ring..Tighten the clamp while pressing down on the cap. If that makes sense to you.Works for me, no leaks & no media/chems rubbing against the rubber cap. I will take pictures the next time I build another 1, to show you what I mean. Edited June 24, 2011 by oldguy Link to comment Share on other sites More sharing options...
guntoteninfadel Posted June 22, 2011 Share Posted June 22, 2011 That is true guiness! If I spelled that right. Since it willbe awhile before I can get back to rockets I think I will turn my attention to upgrades and this will definitely be one! Been on and off watching your progress, wish I had your patience. Link to comment Share on other sites More sharing options...
garyrapp55 Posted June 29, 2011 Share Posted June 29, 2011 I got my blackened paws on one of Oldguys jar's just like the one pictured and it works great. My previous jar was the type with a reducer and rubber cap. I was not pleased with how chems caked in the neck. Recessed ends make carrying it full of media a breeze. Oldguys design is the way to go. Gary Link to comment Share on other sites More sharing options...
thatguy Posted July 7, 2011 Share Posted July 7, 2011 what size motor are you using to turn this? i am new to this and am doing a bunch of reading and see where people are using anywhere from 1/4 to 1 1/1/4 hp motors to spin these and am wondering what everyones take is on what is enough or what is too much. do you think a fan motor from an ac unit will work to turn a mill of this size? Link to comment Share on other sites More sharing options...
oldguy Posted July 7, 2011 Author Share Posted July 7, 2011 Motor size depends on a bunch of variables. How well built the mill is, what kind of bearings & shafts, pulleys and belts. Link below is a unit that will turn 100# driven by a 1/3rd hp motor. http://cgi.ebay.com/100-rock-tumbler-MADE-USA-w-barrel-2-yr-warranty-/110655098407?pt=LH_DefaultDomain_0&hash=item19c38ece27 I built a bigger model 100# unit, with a ¾ hp TEFC motor. It turns like a new Rolls Royce drives. If a mill is well designed a ¼ hp would drive an 8 inch jar with ease. The bigger the jar, the more weight involved. Bigger motors are better = less wear & heat. Link to comment Share on other sites More sharing options...
garyrapp55 Posted July 8, 2011 Share Posted July 8, 2011 I use a 1/8 hp on mine cause its what I had at build time. I keep expecting it to burn up but it hasn't yet. I do have a 1/3 hp ready to go when my 1/8th goes out. I also have a 1/2 hp dc motor but not sure about wiring to the control panel. thatguy, I don't think you can have too much hp so long as the rpm's are right. The problem with an ac fan motor is that its probably 220v. I hear that motors can be got from old washing machines, 110v, and cheap. Link to comment Share on other sites More sharing options...
WSM Posted July 9, 2011 Share Posted July 9, 2011 Motor size depends on a bunch of variables. How well built the mill is, what kind of bearings & shafts, pulleys and belts.Link below is a unit that will turn 100# driven by a 1/3rd hp motor.http://cgi.ebay.com/100-rock-tumbler-MADE-USA-w-barrel-2-yr-warranty-/110655098407?pt=LH_DefaultDomain_0&hash=item19c38ece27I built a bigger model 100# unit, with a ¾ hp TEFC motor.If a mill is well designed a ¼ hp would drive an 8 inch jar with ease.The bigger the jar, the more weight involved.Bigger motors are better = less wear & heat. Hi OG, Two questions: 1) does the PVC barrel make a lot of noise when it runs? I made one years ago and it made so much racket the neighbors thought I was machine washing marbles near a megaphone.2) is rubber lining the barrel an option? I thought about using contact cement to seal a layer of rubber sheet inside my PVC barrel to dampen the noise. Any thoughts? WSM Link to comment Share on other sites More sharing options...
oldguy Posted July 9, 2011 Author Share Posted July 9, 2011 With a proper load of media & chem’s it’s fairly quite. By “proper” I mean ½ filled with media, then I load in the chem’s, give the jar a shake so the chem’s sift down into the media & continue loading chem’s & shaking until its all level. Then run it. But I run Zirc M ceramic media. So that may make a difference. Zirc M media will let you know when the load is done. It rattles to begin with, then gets quieter & quieter until there is almost no sound. Then, slowly, but progressively it starts to rattle more & more. When it does that, the load is starting to cake. Zirc M media will complete a big load of FAST BP in 90 or 100 minutes.I just set the timer for 100 minutes & forget about it. If the pvc jars were so noisy, it bothered my. I was going to line a couple jars with a sound deadening material called accustiblock. But, the mill sound doesn’t, so I didn’t. 3mm thick accustiblock is equal to 1ft of solid concrete for sound dampening purposes. http://info.acoustiblok.com/acoustiblok-products/ Link to comment Share on other sites More sharing options...
WSM Posted July 9, 2011 Share Posted July 9, 2011 (edited) With a proper load of media & chem's it's fairly quite.By "proper" I mean ½ filled with media, then I load in the chem's, give the jar a shake so the chem's sift down into the media & continue loading chem's & shaking until its all level. Then run it. But I run Zirc M ceramic media. So that may make a difference. Zirc M media will let you know when the load is done. It rattles to begin with, then gets quieter & quieter until there is almost no sound. Then, slowly, but progressively it starts to rattle more & more. When it does that, the load is starting to cake. Zirc M media will complete a big load of FAST BP in 90 or 100 minutes.I just set the timer for 100 minutes & forget about it.If the pvc jars were so noisy, it bothered my. I was going to line a couple jars with a sound deadening material called accustiblock. But, the mill sound doesn't, so I didn't. 3mm thick accustiblock is equal to 1ft of solid concrete for sound dampening purposes. http://info.acoustib...iblok-products/ Hi OG, Thanks for the response and information. What sort of material is the acoustiblok? Would you apply it to the inside or outside of the barrel (or not at all, and build a sound-dampening box of it to fit over the ball-mill)? I may have to use one of these approaches if I mill raw materials in town using a PVC barrel. I appreciate any guidance or suggestions you can offer. Oh, and I forgot to ask, where can it be gotten? WSM Edited July 9, 2011 by WSM Link to comment Share on other sites More sharing options...
oldguy Posted July 9, 2011 Author Share Posted July 9, 2011 Sent you a PM...... Link to comment Share on other sites More sharing options...
WSM Posted July 9, 2011 Share Posted July 9, 2011 (edited) Sent you a PM...... Thanks OG. I got it and sent a couple back. WSM By the way, that's some nice work you've done on those barrels. I can see I need to cut and glue some PVC soon, mind if I copy your pattern? Edited July 9, 2011 by WSM Link to comment Share on other sites More sharing options...
garyrapp55 Posted July 9, 2011 Share Posted July 9, 2011 WSM, Oldguy put a link in his post so you could find the acoustiblok, take another look. I have a jar from Oldguy. I use lead media and it is LOUD. I built a cover (plywood box) which I glued 1/2" foam padding (my workplace provided it) to the inside of. I can't hear it 10' away in the kitchen. If I open the door to the garage it is very tolerable. Without that cover, it is unaccetable.Gary p.s. Thanks again Oldguy for the jar. Link to comment Share on other sites More sharing options...
WSM Posted July 9, 2011 Share Posted July 9, 2011 WSM, Oldguy put a link in his post so you could find the acoustiblok, take another look. I have a jar from Oldguy. I use lead media and it is LOUD. I built a cover (plywood box) which I glued 1/2" foam padding (my workplace provided it) to the inside of. I can't hear it 10' away in the kitchen. If I open the door to the garage it is very tolerable. Without that cover, it is unaccetable.Gary p.s. Thanks again Oldguy for the jar. Thanks garyrapp55. I wasn't sure which way OG was going to use it, so I asked. I do admire the nice work OG did on the barrels. I can see I need to cut and glue some PVC here so I can mill more than a few cups of nitrate for my next BP rockets. I just don't want my neighbors to pitch a fit about all the racket, so thanks for the sound dampening tip. WSM Link to comment Share on other sites More sharing options...
FrankRizzo Posted August 4, 2011 Share Posted August 4, 2011 (edited) Oldguy - Would you mind detailing how to cut and fit the pieces of PVC sheet on the ID of the mill jar? I imagine you used a circle cutting jig on the router, but how were you able to match the inner profile of the pipe so well? Edited August 4, 2011 by FrankRizzo Link to comment Share on other sites More sharing options...
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