The Vibrating / Tumbler in action***

[Frankn]

OK my tumbler came in ahead of plan today. I am going to do a series of cleanups in it. I had 3 discs that I assumed to be coins. I didn't take pictures of them because there was nothing to see, but I will show the results if I can identify them. I placed #50 grit aluminum oxide abrasive in with the "coins". I use this abrasive in my "sand" blaster. #50 grit is pretty abrasive. I am going to pickup some different abrasives tomorrow. I am going to look for glass bead media, and resin abrasive + maybe soda abrasive. They are hard to find in small quantities. I will keep you posted and show pictures if I can come up with some positive results. I won't try the good stuff until I have some confirmed results from set times. This toumbler usually takes from 1 hour to 6 hours to show results. It is run dry with the possible exception of a small amount of polish in walnut media or ground corncobb. I have heard that saw dust works well. The main purpose of this type of tumbler is to clean and polish items. Till I get results, Frank

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[Frankn]

Well the 50 grit aluminum oxide is to course for this type pf tumbler. One "coin" is still a green disc, but the front and back of the edges is now bright copper. I can bearly make out one as a memorial penny and the last appears to be a quarter that was burned in a fire, ie the copper inside has bubbled. I picked up some plastic abrasive material that I will try next.

[Frankn]

Looks like the plastic abrasive material is doing it, but it is slower than expected. I ran it overnite and the quarter detail is comming out. I can see the distortions from a lot of heat. The penny is looking better, but the green "penny" is still green. I will give it one more nite tumbling. I have added two tokens. When I went to get the plastic abrasive material, they had crushed glass abrasive, but I will pass that one up.

[FCCDFEd]

Frank, I too have a vibratumbler and love it. I clean all my clad just so I can examine it before turning it into the bank. I tried alot of different mediums and finally settled on peagravel or aquarium rock (either plain or white). Let it vibrate about 12-18 hrs and it really cleans up nice. It works for clad not sure if it will work for the disc unless they are of the same material. Good Luck and looking forward to seeing the pics.

[Frankn]

I will put the pictures in the next post, been busy. The plastic abrasive from HF works great on silver, OK on copper, not to good on the appearantly brass alloy token, and not at all on the "green penny". Beach sand as noted above should work well and foundary sand which is pointed on edges might be to abrasive for the good stuff. I am just looking for all the options. Suggestions welcome.