notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Apr 1, 2017 23:37:51 GMT -5
I might grab a couple pounds of the real coarse stuff and give it a try looks to me like the big chunks are made of small grains that will just crumble and break down anyway leaving smaller grained sharp chunks. either way ill grab some even if its just a few pounds and get some pics. tomorrow night. unscreened sic
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Apr 1, 2017 22:50:10 GMT -5
notjustone , the Cabelas one is not the rock version . I will look up what I paid and send you a PM if he is not interested . What I paid and shipping is all I want to get out of it . funny thing the amazon 1 says its not a rock tumbler right in the add but right below it where it says frequently bought together items, the uv18 the rock grit kit and plastic beads must be everyone ignores the not a rock tumbler warning. thumblers website shows a hobbyist and an industrial version. I'm gonna have to say the industrial is out of my price range at this time.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Apr 1, 2017 22:15:24 GMT -5
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Apr 1, 2017 22:06:31 GMT -5
I saw it looking through the archives but couldn't use it because I ran a double sheave reduction pulley {jackshaft type concept) to knock down speed before going to the shafts. so I could keep my shaft pulleys small enough for a positive drive. going from motor straight to the shaft would have been a bigger diameter pulley than I could have done on my little jet lathe.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 30, 2017 22:01:41 GMT -5
I might grab a couple pounds of the real coarse stuff and give it a try looks to me like the big chunks are made of small grains that will just crumble and break down anyway leaving smaller grained sharp chunks. either way ill grab some even if its just a few pounds and get some pics. tomorrow night.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 30, 2017 21:51:46 GMT -5
I learned the other day our sic is not always consistant. I had gotten some that was like 30 grit size consitant screened I looked at a diferent pallet they were working out of tonight and the sic in that 3000lbs bag looked unscreened with some chunks as big as a pencil eraser. I asked the melt deck supervisor about it and he said its like that, some bags look screened and others don't. doesn't matter for our application.
I would imagine in the briquettes size probably isn't as critical either.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 29, 2017 22:15:11 GMT -5
mine was perfect for tumbler food what was to big for tumbler was not so big the hf 7 inch tile saw couldn't get through it. some(not all) was river tumbled saving a lot of time in coarse grit. I liked the rough box better than the cuts. my box had quite a bit of petwood. I hope the price didn't go up cause I just paypaled him for another box. I'm not sure he saw this post either cause he never replied lol
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 29, 2017 12:03:24 GMT -5
bump
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 29, 2017 11:58:11 GMT -5
they are in unfortunately I have to get going to work have to pop it open get my water bowl and start looking through them when I get home tonight.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 28, 2017 0:30:44 GMT -5
Greetings Rockers! I would like to find plans for a DIY starter tumbler. I would like to teach folks how to build and use a small starter tumbler. I'm thinking that if I could find a source for inexpensive motors, and a good idea for inexpensive barrels, the rest is easy and cheap. So what do you think? I'm looking for good ideas. look through the archives there are a lot of homemade tumblers. I'm sorry if that came off as rude wasn't meant to be. start searching here. forum.rocktumblinghobby.com/board/11/home-equipment
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 27, 2017 22:56:37 GMT -5
Greetings Rockers! I would like to find plans for a DIY starter tumbler. I would like to teach folks how to build and use a small starter tumbler. I'm thinking that if I could find a source for inexpensive motors, and a good idea for inexpensive barrels, the rest is easy and cheap. So what do you think? I'm looking for good ideas. look through the archives there are a lot of homemade tumblers.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 27, 2017 11:36:33 GMT -5
diane I sent 15 bucks to your paypal to cover shipping. ill take the free rocks but I'm not a total mooch lol
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 27, 2017 11:29:55 GMT -5
melhill wasn't the only one who did expariments. she loaded up boxes and weighed them, I went to the forum and went through a bunch of sales searched out a bunch of posts that had medium flat rate boxes. looked for ones with similar sized stones (including the ones I bought). I had no idea but narrowed it down to a 3 pound spread I felt it was in. so I guessed random numbers between 25 and 28 lbs. wrote down everyone elses votes so I wouldn't duplicate.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 27, 2017 9:09:02 GMT -5
Everything that Quartz said is correct. Perhaps I didn't explain my meaning adequately, but the only reason for changing the size of a pulley on either end is because it causes more or less belt to be moved per revolution of the machine. Hence the belt will go faster or slower in terms of inches per second or whatever speed units you want to use resulting in a change in the rpms at the other end. I used to teach children how to understand multispeed bicycles (same principles but easier to change combinations so people could understand what was the result), but I didn't try to do it over the internet at 0600 in 25 words or less. The concept is particularly important when setting up saws because a big saw blade's outside circumference (cutting surface) is going by the rock at a much faster linear speed than a small saw blade's cutting surface. Hence we often slow down the rpms on the blade end of a big saw, but not so much on a small saw, even tho we started out with a motor on the other end that had the same rpms. I just didn't want the OP to get to the store and have the clerk ask "What size pulley did you want"? without being prepared to answer. belt speed is meaningless for the most part. lets say you have say a 2 inch pulley on motor (drive) and a 2 inch pulley on shaft (driven), your belt speed is set by the drive pulley. at basically a 1 to 1 ratio. we will say our motor (drive) turns at 1750 rpm, so the shaft driven) is turning 1750 as well. now change that shaft (driven) pulley to say 12 inch diameter. now its ratio is 1 to 6, and the driven shaft is now turning 291 rpm. yet belt speed has not changed at all because the drive pulley size has not changed. yet we have a change in speed (rpm).
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 26, 2017 23:00:27 GMT -5
I got confused by Peruano 's explanation regarding knowing the size of the pulley you need so as to know the speed of the belt, probably not alone here. You need to know the size of the pulley to purchase as it has an effect on the speed of what you are driving with the motor. Speed of the belt is moot. A pulley the same size on the motor as on the driven shaft means the driven shaft runs at motor speed. Smaller on motor than driven runs the driven shaft slower than motor, larger runs the driven shaft faster than motor. Basic math, divide diameter of "driven" by diameter of "drive", and motor speed by result of that to get speed of driven shaft. that math sounds complicated I used this www.blocklayer.com/Pulley-BeltEng.aspx
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 26, 2017 22:32:58 GMT -5
rocksaw?, cabber?, flatlap? come on now help me out here I'm looking for my future next ex wife. LOL I have a tile saw but it's not very photogenic. Would you settle for pictures of my rocks? I have lots of those. I hear ya my saw is a harborfreight 7 inch tile saw. not exactly the sexiest of saws.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 26, 2017 22:12:33 GMT -5
thank you thank you ide like to thank drrocknut for putting this contest on. its very generous of her and appreciated by all.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 26, 2017 21:08:43 GMT -5
the suspence is killing me.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 26, 2017 14:06:21 GMT -5
I'm still trying to decide if i want to build some more barrels and run the 3 step ao80 process or stick with just useing it to feed my 2 hf tumblers. ill probably do that for now and switch over when one of the hf tumblers dies.
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notjustone
spending too much on rocks
Member since January 2017
Posts: 426
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Post by notjustone on Mar 26, 2017 13:58:30 GMT -5
Shoot, now I gotta go back and look to see what all of the numbers are so I don't duplicate and waste one. Thanks for the extra. Dave your right that sounds like a lot of work you should just forego your final guess hehehehe
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