shnitzl
off to a rocking start
Member since December 2016
Posts: 10 
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Post by shnitzl on Dec 6, 2016 11:17:18 GMT -5
Hi! I recently dove into the tumbling hobby, mainly as it complements my machining hobby.
picked up a old RAMPE tumbler and I am having the most difficult time finding any literature on it. does any of the membership have any info or direction where to find it?
currently trying to figure out its max capacity. need to know this to figure the ratio of media to parts.
I can post pictures but this is the exact one!
with mine, I am re making the wheels with likely delrin, and the drive shafts with turned ground polished rod. the dual drives are 3/4 thick.
hopefully someone has some insight
perhaps there are formulas to calculate all this? or other models that are similar. I can post measurements of the drums when I arrive home
much appreciated! |
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Post by captbob on Dec 6, 2016 15:38:43 GMT -5
Welcome to the forum shnitzl Hope someone can come up with what you are looking for, but tumblers and tumbling is really pretty straight forward stuff. No owners manual required.  The barrels in the linked video look pretty big when the guy is putting them on the rollers. Tough to guess what size they are from just that and without dimensions. Are you just going to be burnishing metal parts with yours or actually tumbling rocks? Hope your machine isn't as loud as the one in the video! |
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Deleted
Deleted Member
Member since January 1970
Posts: 0
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Post by Deleted on Dec 6, 2016 17:02:53 GMT -5
It's interesting to me that the one barrel spins faster than the other.
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unclesoska
freely admits to licking rocks
All those jade boulders tossed in search of gold!
Member since February 2011
Posts: 934
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Post by unclesoska on Dec 6, 2016 20:31:53 GMT -5
It's interesting to me that the one barrel spins faster than the other. Good Eye Shotgunner! I had to replay it after you said that. I have an answer. When the operator put the 2nd barrel on, it knocked the 1st up onto the wood(?) thingies, and the 2nd barrel was riding directly on the "smaller diameter" metal shaft. |
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quartz
Cave Dweller 
breakin' rocks in the hot sun
Member since February 2010
Posts: 3,359
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Post by quartz on Dec 6, 2016 23:56:19 GMT -5
Easy to find capacity, fill a barrel with water, measuring the amount as you go. I use a cup [pound] of grit per gallon of barrel capacity, this matches closely to what most people use.
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Post by johnjsgems on Dec 7, 2016 13:17:51 GMT -5
Single gallon = 12 lbs.
1/2 gallon = 6 lbs.
Quart = 3 lbs.
Most guides say one tablespoon per lb. for coarse, a little less (2/3-3/4) for fine. If a large capacity easiest to measure out 12 tbs = some cup or container you can use for convenience. Precision is not necessary.
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shnitzl
off to a rocking start
Member since December 2016
Posts: 10
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Post by shnitzl on Dec 7, 2016 14:24:40 GMT -5
thanks for the help fellas, so I will be using this for burnishing metal firstly but I do want to try tumbling some rocks I did a online calculator to find the volume of an octagon, these drums are 7.75 US/Gal's each! what grit are you all using? also, mine should be quite I am re building the drive assembly as my rollers are shot. perhaps I can post on how I do all that. I did find more info, the full name is a VL-RAMPE (finishing equipment co) models a RA-2 I think Rpm 20 to 46 (or was that 50) and took the advise that a manual isn't really needed, I just like over complicating things unknowingly |
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Post by captbob on Dec 9, 2016 12:16:14 GMT -5
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