Question about NRS Rock Tumbler

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I recently uncovered an old Natural Science Industries Model 635 Rock Tumbler. Is it conceivable that I can find a replacement barrel for this vintage machine? Thanks

Posted by rfmoorejr on

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5 Related Answers

tosea

  • 50 Answers

SOURCE: I need instructions for the National Geographic Rock Tumbler.

This is a link to generic instructions for rock tumblers:
http://chemistry.about.com/library/weekly/aa011803a.htm

Posted on Mar 16, 2009

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Anonymous

  • 6 Answers

SOURCE: Directions for Rock Tumbler

After many attempts to find the manual, I came across this site:
http://www.rockhounds.com/rocknet/archive/messages/1956.shtml

It seems you aren't the only one with the same problem!
I hope this is what you are looking for...

Posted on Mar 16, 2009

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Anonymous

  • 1 Answer

SOURCE: We have the Smithsonian Micro Chemistry set and need manual

http://lib.store.yahoo.net/lib/discoverthis/micxm-instructions.pdf There ya go!

Posted on Apr 07, 2010

Danniboi

Dan Doherty

  • 1098 Answers

SOURCE: Hello, my kids got the

Hi

I have had similar issues with another item, if you go to there website and search manuals you should be able to find it there, you can download it into pdf or notepad file. www.elenco.com/

Hope that helps
Regards

Dan

Posted on Dec 28, 2010

ssddff222

Lazaros Mavridis

  • 101 Answers

SOURCE: My daughter received an Edu

Wow that is a nice one you have, it is probably quieter with the plastic cover. I use to tumble my rocks either in the basement or in an empty drawer in my dresser to sort of block out some of the noise. The one I had when I was younger was probably the first do it yourself old Smithsonian rock tumbler. I'd say that was probably one of the best gifts that I have ever received.
Well, first, you put the bag of rocks that you want to tumble in the tumbler. Make sure it only fills the barrel 2/3-3/4 full or you may have to extend polishing time.
then, usually you use the thickest to the thinnest grit in that order. You put the thickest grit in first and let the rocks tumble from 7-10 days (for optimal polishing). You will do this for each grit you use.

Make sure there is no grit transferred from one step to the next. Hope this helps :)

Posted on Dec 28, 2010

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2 Answers

I received a national geographics tumbler for Christmas when I tried to use it the lid comes loose and spills water and stuff all over.


-Possibly too cheap and make form out side of USA.
Don't use it. Every time you use it. It'll do the same thing.
Or you can try couple more times to see what it'll do.


Good luck


Mai

Dec 27, 2017 | The Optics

1 Answer

I received a rock tumbler as a gift last September as a gift and I love it. I believe the model number is 84637-2009-08. The barrel has popped a hole and is no long useable. The suggested...


just bought a rock tumbler for ToysRus but the barrel does not rotate i think that the toy is defected please let me know what else i could do to make the toy work thank you

Mar 31, 2011 | California Creations Dp Rock Tumbler

1 Answer

We have a rock tumbler and have lost the instructions. How long are we to tumble each stage? I assume that the sand goes inside the tumbler with the rocks. We need some directions.


Fill the barrel most of the way with stones, add coarse grit, add enough water to just cover the stones and then clean where the lid seals carefully. Seal it up and run it for a week, dump everything into a colander and rinse. Don't run that mud down your drain because it will plug it mightily, run it outside.

Do the same process with the fine grit, run it for another week and rinse and admire.

lp

Jan 02, 2011 | Edu-Science Toys

1 Answer

Where can i find a set of instructions for our edu science rock tumbler.


I used to have exactly that same rock tumbler. I have a bunch of polished rocks out in my garden that the kids and I made with that thing.

I don't have the instructions, but there are some perfectly great generic instructions on the geology.com web site: http://geology.com/rock-tumbler/rock-tumbler-instructions.shtml

I used these directions with great success.

Dec 31, 2010 | Edu-Science Toys

1 Answer

My daughter received an Edu Science Rock Tumbler for Christmas but has lost the instructions. Where can we request for a new set of instructions?


Wow that is a nice one you have, it is probably quieter with the plastic cover. I use to tumble my rocks either in the basement or in an empty drawer in my dresser to sort of block out some of the noise. The one I had when I was younger was probably the first do it yourself old Smithsonian rock tumbler. I'd say that was probably one of the best gifts that I have ever received.
Well, first, you put the bag of rocks that you want to tumble in the tumbler. Make sure it only fills the barrel 2/3-3/4 full or you may have to extend polishing time.
then, usually you use the thickest to the thinnest grit in that order. You put the thickest grit in first and let the rocks tumble from 7-10 days (for optimal polishing). You will do this for each grit you use.

Make sure there is no grit transferred from one step to the next. Hope this helps :)

Dec 28, 2010 | Edu-Science Toys

1 Answer

Natural Science Industries, Ltd., Make Your Own Beer-Complete Beer making Kit.


Sorry no one will have a manual for that imported off brand telescope.

Sorry--

Feb 20, 2008 | Natural Science Industries Smithsonian 175...

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