I'm currently in the market for a vibratory polisher, both for polishing parts
and for cleaning fired brass prior to reloading. There doesn't seem to be
a huge difference between the ones sold by ammunition reloading suppliers and
various metalworking suppliers, with one notable exception:

http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT

That's the "high capacity" tumbler from Eastwood. A whopping 22 inch diameter
bowl, large enough to polish even the dirtiest of small children to a high
gloss shine. It's expensive, but it seems like the typical sizes of polishers
are only good for objects small enough to fit in the palm of your hand.
I can easily see myself wanting to polish parts that are closer to a "palms
of two hands" size, plus for reloading purposes I'd mainly be doing rifle
brass so the additional capacity would allow me to get everything done in one
big batch.

Has anyone ever used this particular tumbler? Can anyone speak to the quality
and reliability of the unit? It's supposedly made in the USA, which is a plus
as when Eastwood sells things that are made in China they end up being roughly
equivalent to what you get from Harbor Freight. Also, does anyone know of
other companies that sell tumblers in that same size category for comparison?
It seems like every place I check doesn't get anywhere near the size of that
one. It's a pretty huge chunk of change to plunk down, so I definitely need
to do some comparison shopping first.

On Tue, 12 May 2009 02:02:45 GMT, The Hurdy Gurdy Man
wrote:


I'm currently in the market for a vibratory polisher, both for polishing parts
and for cleaning fired brass prior to reloading. There doesn't seem to be
a huge difference between the ones sold by ammunition reloading suppliers and
various metalworking suppliers, with one notable exception:

http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT

That's the "high capacity" tumbler from Eastwood. A whopping 22 inch diameter
bowl, large enough to polish even the dirtiest of small children to a high
gloss shine. It's expensive, but it seems like the typical sizes of polishers
are only good for objects small enough to fit in the palm of your hand.
I can easily see myself wanting to polish parts that are closer to a "palms
of two hands" size, plus for reloading purposes I'd mainly be doing rifle
brass so the additional capacity would allow me to get everything done in one
big batch.

Has anyone ever used this particular tumbler? Can anyone speak to the quality
and reliability of the unit? It's supposedly made in the USA, which is a plus
as when Eastwood sells things that are made in China they end up being roughly
equivalent to what you get from Harbor Freight. Also, does anyone know of
other companies that sell tumblers in that same size category for comparison?
It seems like every place I check doesn't get anywhere near the size of that
one. It's a pretty huge chunk of change to plunk down, so I definitely need
to do some comparison shopping first.


Sorry...mine is 36" across and cost $25

Uses a 1/2hp motor.

You do know yuc can build such a ting rather easily, no?

Gunner

"Somewhere a True Believer is training to kill you. He is training with
minimum food or water,in austere conditions, day and night. The only thing
clean on him is his weapon. He doesn't worry about what workout to do---
his rucksack weighs what it weighs, and he runs until the enemy stops chasing him.
The True Believer doesn't care 'how hard it is'; he knows he either wins or he dies.
He doesn't go home at 1700; he is home. He knows only the 'Cause.' Now, who wants to quit?"

NCOIC of the Special Forces Assessment and Selection Course in a welcome speech to new SF candidates

Gunner Asch wrote:

You do know yuc can build such a ting rather easily, no?

I have heard that, but it would require me to have both the time available
to make one, and the knowledge required to make one that worked properly.
It doesn't sound like a complicated contraption to design and build, but I
really just don't have the time. I suppose if I could find a set of plans
and a list of materials that would yield a tumbler guaranteed to operate to
my satisfaction then I'd be able to manage it, but it's the trial-and-error
part of the design that makes it infeasible.

On Wed, 13 May 2009 08:29:48 GMT, The Hurdy Gurdy Man
wrote:

Gunner Asch wrote:

You do know yuc can build such a ting rather easily, no?

I have heard that, but it would require me to have both the time available
to make one, and the knowledge required to make one that worked properly.
It doesn't sound like a complicated contraption to design and build, but I
really just don't have the time. I suppose if I could find a set of plans
and a list of materials that would yield a tumbler guaranteed to operate to
my satisfaction then I'd be able to manage it, but it's the trial-and-error
part of the design that makes it infeasible.

Bryan,

Somewhere on the web I have seen a ball mill (not vibratory) made from
a truck tire, and used to polish stones. (Can't find it right now.)
If memory serves the tire sits on a couple of rollers, one of which is
attached to a fractional HP motor.

Ha! Just found it!
http://silgro.com/RockTumbling/04_TireTumbler.htm

This one uses a 31" tire but you could probably make one with as large
a tire as you can haul. The tire company will be amused when you
bring back a tire worn out from the inside...

Best -- Terry

"Terry" wrote in message
...
On Wed, 13 May 2009 08:29:48 GMT, The Hurdy Gurdy Man
wrote:

Gunner Asch wrote:

You do know yuc can build such a ting rather easily, no?

I have heard that, but it would require me to have both the time available
to make one, and the knowledge required to make one that worked properly.
It doesn't sound like a complicated contraption to design and build, but I
really just don't have the time. I suppose if I could find a set of plans
and a list of materials that would yield a tumbler guaranteed to operate
to
my satisfaction then I'd be able to manage it, but it's the
trial-and-error
part of the design that makes it infeasible.

Bryan,

Somewhere on the web I have seen a ball mill (not vibratory) made from
a truck tire, and used to polish stones. (Can't find it right now.)
If memory serves the tire sits on a couple of rollers, one of which is
attached to a fractional HP motor.

Ha! Just found it!
http://silgro.com/RockTumbling/04_TireTumbler.htm

This one uses a 31" tire but you could probably make one with as large
a tire as you can haul. The tire company will be amused when you
bring back a tire worn out from the inside...

Best -- Terry\

Nice design! I suppose that instead of a slurry I could run plastic media
to clean up small metal parts?

Ivan Vegvary

"The Hurdy Gurdy Man" wrote in message
...

I'm currently in the market for a vibratory polisher, both for polishing
parts
and for cleaning fired brass prior to reloading. There doesn't seem to be
a huge difference between the ones sold by ammunition reloading suppliers
and
various metalworking suppliers, with one notable exception:

http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT

That's the "high capacity" tumbler from Eastwood. A whopping 22 inch
diameter
bowl, large enough to polish even the dirtiest of small children to a high
gloss shine. It's expensive, but it seems like the typical sizes of
polishers
are only good for objects small enough to fit in the palm of your hand.
I can easily see myself wanting to polish parts that are closer to a
"palms
of two hands" size, plus for reloading purposes I'd mainly be doing rifle
brass so the additional capacity would allow me to get everything done in
one
big batch.

Has anyone ever used this particular tumbler? Can anyone speak to the
quality
and reliability of the unit? It's supposedly made in the USA, which is a
plus
as when Eastwood sells things that are made in China they end up being
roughly
equivalent to what you get from Harbor Freight. Also, does anyone know of
other companies that sell tumblers in that same size category for
comparison?
It seems like every place I check doesn't get anywhere near the size of
that
one. It's a pretty huge chunk of change to plunk down, so I definitely
need
to do some comparison shopping first.

Harbor Freight, yo, at 1/3 the price!!

Their larger HF model (which I have) looks exactly like the one in the
photo, except it may be even larger. Whole unit is about $150, about the
price of Eastwoods bowl alone!!!

My buddy, who tumbles **** all the time in high-powered tumblers, uses my HF
for his little bitty parts, says it works just fine. He especially likes it
cuz it is so quiet.

HF also sells a smaller version of this, for like $50, which, if I ever
start tumbling anything, I'll proly get also.

If you wind up buying any of these, email me, as I have a very simple mod
for making the top a lot easier to screw on/off -- if you even bother.
Basically just bushings on top AND bottom of the lid, so's you don't have to
turn the nut 50 zillion times, OR crush the lid.

The HF model has two 1/8 or 1/4" nipples, for a water inlet, and drain, for
media that should be used wet.

Seems decently made -- nothing that offends me immediately, at any rate.

--

Mr. PV'd

Mae West (yer fav Congressman) to the Gangster (yer fav Lobbyist):
Hey, Big Boy, is that a wad (of cash) in yer pocket, or are you just
glad to see me??

On 2009-05-14, The Hurdy Gurdy Man wrote:
"Proctologically Violated??" wrote:

Harbor Freight, yo, at 1/3 the price!!

Their larger HF model (which I have) looks exactly like the one in the
photo, except it may be even larger. Whole unit is about $150, about the
price of Eastwoods bowl alone!!!

The largest one I can find from Harbor Freight only has a 10 1/2" diameter
bowl and an 18 pound capacity; the Eastwood one is 22" wide with a 50 pound
capacity. It looks like the Eastwood one could actually fit the Harbor Freight
one inside it. Believe me, I checked Harbor Freight first. Finding a tumbler
as large as the Eastwood one is proving to be rather difficult. I just don't
relish the idea of spending $550 on the thing.

Have you ever seen the Blue Press catalog? They offer one for
cleaning cartridge cases for $179.95 (12-1/2 quart bowl capacity), and a
smaller one for $129.95 (half that size).

I have no idea how that compares to the dimensions of the ones
which you are looking at -- they are specified in different units.

But -- you can check them out at http://www.bluepress.com (and
probably have to do a bit of searching to find the vibratory case
cleaners. (They're on page 18 of the current monthly catalog, if that
is any help.)

Good Luck,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On May 14, 6:26 pm, The Hurdy Gurdy Man
wrote:
"Proctologically Violated??" wrote:
Harbor Freight, yo, at 1/3 the price!!

Their larger HF model (which I have) looks exactly like the one in the
photo, except it may be even larger. Whole unit is about $150, about the
price of Eastwoods bowl alone!!!

The largest one I can find from Harbor Freight only has a 10 1/2" diameter
bowl and an 18 pound capacity; the Eastwood one is 22" wide with a 50 pound
capacity. It looks like the Eastwood one could actually fit the Harbor Freight
one inside it. Believe me, I checked Harbor Freight first. Finding a tumbler
as large as the Eastwood one is proving to be rather difficult. I just don't
relish the idea of spending $550 on the thing.

The larger HF tumbler is only available in their stores, and is not on
their web site.
I purchased the large one a month ago for the larger parts of a Lauson
engines restoration. Still haven't figured out how to make parts
shiny, but I can remove rust and paint.
I also owned the smaller one from HF, the motor overheats, I believe
winding failure. but I believe this is a random failure. Just bought
a new one of these, they have made design improvements.
ignator

On May 11, 9:42 pm, Gunner Asch wrote:
On Tue, 12 May 2009 02:02:45 GMT, The Hurdy Gurdy Man



wrote:

I'm currently in the market for a vibratory polisher, both for polishing parts
and for cleaning fired brass prior to reloading. There doesn't seem to be
a huge difference between the ones sold by ammunition reloading suppliers and
various metalworking suppliers, with one notable exception:

http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT

That's the "high capacity" tumbler from Eastwood. A whopping 22 inch diameter
bowl, large enough to polish even the dirtiest of small children to a high
gloss shine. It's expensive, but it seems like the typical sizes of polishers
are only good for objects small enough to fit in the palm of your hand.
I can easily see myself wanting to polish parts that are closer to a "palms
of two hands" size, plus for reloading purposes I'd mainly be doing rifle
brass so the additional capacity would allow me to get everything done in one
big batch.

Has anyone ever used this particular tumbler? Can anyone speak to the quality
and reliability of the unit? It's supposedly made in the USA, which is a plus
as when Eastwood sells things that are made in China they end up being roughly
equivalent to what you get from Harbor Freight. Also, does anyone know of
other companies that sell tumblers in that same size category for comparison?
It seems like every place I check doesn't get anywhere near the size of that
one. It's a pretty huge chunk of change to plunk down, so I definitely need
to do some comparison shopping first.

Sorry...mine is 36" across and cost $25

Uses a 1/2hp motor.

You do know yuc can build such a ting rather easily, no?

Gunner

"Somewhere a True Believer is training to kill you. He is training with
minimum food or water,in austere conditions, day and night. The only thing
clean on him is his weapon. He doesn't worry about what workout to do---
his rucksack weighs what it weighs, and he runs until the enemy stops chasing him.
The True Believer doesn't care 'how hard it is'; he knows he either wins or he dies.
He doesn't go home at 1700; he is home. He knows only the 'Cause.' Now, who wants to quit?"

NCOIC of the Special Forces Assessment and Selection Course in a welcome speech to new SF candidates

Gunner what did you use for a bowl? Wish I could see your machine, as
to how you made it.
ignator

"ignator" wrote in message
...
On May 14, 6:26 pm, The Hurdy Gurdy Man
wrote:
"Proctologically Violated??" wrote:
Harbor Freight, yo, at 1/3 the price!!

Their larger HF model (which I have) looks exactly like the one in the
photo, except it may be even larger. Whole unit is about $150, about
the
price of Eastwoods bowl alone!!!

The largest one I can find from Harbor Freight only has a 10 1/2"
diameter
bowl and an 18 pound capacity; the Eastwood one is 22" wide with a 50
pound
capacity. It looks like the Eastwood one could actually fit the Harbor
Freight
one inside it. Believe me, I checked Harbor Freight first. Finding a
tumbler
as large as the Eastwood one is proving to be rather difficult. I just
don't
relish the idea of spending $550 on the thing.

The larger HF tumbler is only available in their stores, and is not on
their web site.
I purchased the large one a month ago for the larger parts of a Lauson
engines restoration. Still haven't figured out how to make parts
shiny, but I can remove rust and paint.
I also owned the smaller one from HF, the motor overheats, I believe
winding failure. but I believe this is a random failure. Just bought
a new one of these, they have made design improvements.
ignator

http://www.harborfreight.com/cpi/cta...emnumber=96923

If searching their site, it does not show up under "tumbler", but under
"vibratory".

Harbor Freight can be a part time job, esp. if you try to catch all their
price fluctuations. Really maddening, and altho you can be somewhat
successful at chasing the low price, your net gain is proly equiv. to about
50c/hr for your time. What a racket..... goodgawd....

But more to the point:

You should be careful about how large a part you place in these types of
tumblers, as the wave motion is converging to a point radially, for a lot of
crowding, part-to-part collisions, and bottlenecking, possibly resulting in
no net vibration due to compacting near the center.

I would guestimate that a 1" cube might be the max size for these
types/size of tumblers. We use them for much smaller stuff, like
dremel-type arbors, small standoffs, etc.

Also, your choice of media is of course important, but I suspect your larger
parts are not getting shiney because of the above size/geometry problems.

The other type we heave is a rectangular tub-type, where the tub has a
rounded bottom but is rectangular in x,y, and thus does not suffer from
this type of "geometrical blockage/bottleneck".

It will tumble *anything* that can fit in the approx 10" x 18" area of the
tub -- about 18" deep, altho you only fill it about 1/2 full of media/parts.

Thus, the tub volume is not super-huge, but can accommodate a few good-sized
parts, and is very powerful -- and maddeningly noisy.
It requires *at least* a 1/2 hp motor (burned out several 1/3 hp motors),
that runs a large eccentric weight -- proly hell on the front motor bearing.

If this type is being used anywhere near people, you really need to isolate
it off the floor with hvac-type vibration dampers AND enclose it.

If Ig's tumbler is like this, you may want to consider it.

If the tub is metal, they need occasional re-lining, which done here locally
(NYC) was almost $500 by itself, altho I think we got ripped off.

Next time, I will try to apply this smear-on bedliner type stuff for pickup
trucks, see how that works. Or some other epoxy-type stuff.

Or mebbe even just heat up the tub and try to melt/form a 1/8" nylon or
delrin sheet, altho that is proly a lot easier said than done -- and risky,
from a longterm moisture/rusting pov.

--

Mr. PV'd

Mae West (yer fav Congressman) to the Gangster (yer fav Lobbyist):
Hey, Big Boy, is that a wad (of cash) in yer pocket, or are you just
glad to see me??

On Fri, 15 May 2009 04:03:49 +0000, DoN. Nichols wrote:

On 2009-05-14, The Hurdy Gurdy Man wrote:
"Proctologically Violated??" wrote:

Harbor Freight, yo, at 1/3 the price!!

Their larger HF model (which I have) looks exactly like the one in the
photo, except it may be even larger. Whole unit is about $150, about
the price of Eastwoods bowl alone!!!

The largest one I can find from Harbor Freight only has a 10 1/2"
diameter bowl and an 18 pound capacity; the Eastwood one is 22" wide
with a 50 pound capacity. It looks like the Eastwood one could
actually fit the Harbor Freight one inside it. Believe me, I checked
Harbor Freight first. Finding a tumbler as large as the Eastwood one
is proving to be rather difficult. I just don't relish the idea of
spending $550 on the thing.

Have you ever seen the Blue Press catalog? They offer one for
cleaning cartridge cases for $179.95 (12-1/2 quart bowl capacity), and a
smaller one for $129.95 (half that size).
....
But -- you can check them out at http://www.bluepress.com (and
probably have to do a bit of searching to find the vibratory case
cleaners. (They're on page 18 of the current monthly catalog, if that
is any help.)

That bluepress link resolves to http://www.dillonprecision.com/,
while google on vibratory case cleaner "Blue Press" gives a link
http://www.dillonprecision.com/Case_Preparation_Equipment-8-8.html
with pictures of CV-2001 and CV-750 that appear to be those two
cleaners at those prices.

--
jiw

On Tue, 12 May 2009 02:02:45 GMT, The Hurdy Gurdy Man
wrote:


I'm currently in the market for a vibratory polisher, both for polishing parts
and for cleaning fired brass prior to reloading. There doesn't seem to be
a huge difference between the ones sold by ammunition reloading suppliers and
various metalworking suppliers, with one notable exception:

http://www.eastwoodco.com/jump.jsp?i...emType=PRODUCT

That's the "high capacity" tumbler from Eastwood. A whopping 22 inch diameter
bowl, large enough to polish even the dirtiest of small children to a high
gloss shine. It's expensive, but it seems like the typical sizes of polishers
are only good for objects small enough to fit in the palm of your hand.
I can easily see myself wanting to polish parts that are closer to a "palms
of two hands" size, plus for reloading purposes I'd mainly be doing rifle
brass so the additional capacity would allow me to get everything done in one
big batch.

Has anyone ever used this particular tumbler? Can anyone speak to the quality
and reliability of the unit? It's supposedly made in the USA, which is a plus
as when Eastwood sells things that are made in China they end up being roughly
equivalent to what you get from Harbor Freight. Also, does anyone know of
other companies that sell tumblers in that same size category for comparison?
It seems like every place I check doesn't get anywhere near the size of that
one. It's a pretty huge chunk of change to plunk down, so I definitely need
to do some comparison shopping first.


I bought a Nova 1001, 1 cuft with a 1/2HP motor from these guys. made
locally in PA

http://www.novafinishing.com/products.html

Was about $1000.00 paid for itself by me not having to send parts out
for deburr. I'm using the plastic media for deburing aluminum parts.



Thank You,
Randy

Remove 333 from email address to reply.

"Proctologically Violated??" wrote:

However, judging from Eastwood's picture relative to the hands in the
picture, and how my hands look on the HF, they look *very* similar, altho
the mouth of the Eastwood looks bigger.

Given the variability of hand sizes, I would think a better point of
comparison would be the master cylinder floating around inside the Eastwood
tumbler bowl. I've seen the large tumblers at Harbor Freight and they just
don't look like they're as large; I'll see if I can find one at the local
store today and check again.

I do worry about the power of the motor in the Eastwood unit. I have to
suspect, because I'm paranoid about everything, that it'll be underpowered.
Especially since they don't mention the power anywhere on the site. I'll
have to see if I can get them to tell me. I've had bad luck with Eastwood
in the past when I've tried to ask them questions.

DoN. Nichols wrote:

Have you ever seen the Blue Press catalog? They offer one for
cleaning cartridge cases for $179.95 (12-1/2 quart bowl capacity), and a
smaller one for $129.95 (half that size).

I've looked at those, and as far as I can tell they're smaller. They look
like they might be better quality, but the bowls don't seem to be quite as
large. One of the ways I came across the Eastwood tumbler was from a
conversation with someone who reloaded 50BMG rounds. They had the largest
of tumblers available through any of the reloading outlets, and they felt
it still wasn't large enough. The Eastwood one looks to rectify that problem.
It is a pain that companies won't give the volume specs in equal units of
measure, but they do seem to frequently give the largest diameter of the bowl.
Since they're all round, and generally doughnut shaped, it seems fair to
compare them based on that measurement. Even when the diameter given is
the size of the opening and not that of the widest part of the bowl it seems
like it's still a fair way to do it, since the difference between the opening
and the sides rarely seems to be so different as to create a real calculation
problem. Besides, if the opening is that much different than the sides of
the bowl, how is that good design? It still restricts the size of the parts
I can get into it.

There are some good sized ones available through Rio Grande (some are listed
as 20" with around a 6 gallon capacity), but of course they carry the Rio
Grande price tags. Truthfully, as Gunner as suggested, the best option for me
as I want one that's both large and cheap is to build my own, but I just don't
know what the hell I'm doing enough to build one without some sort of plans or
more solid background with the devices.

On May 15, 8:50*pm, The Hurdy Gurdy Man

There are some good sized ones available through Rio Grande (some are listed
as 20" with around a 6 gallon capacity), but of course they carry the Rio
Grande price tags. *Truthfully, as Gunner as suggested, the best option for me
as I want one that's both large and cheap is to build my own, but I just don't
know what the hell I'm doing enough to build one without some sort of plans or
more solid background with the devices.

If you want I will ask my neighbor about his vibratory tumbler. I did
not note who the manufacturer was and have no idea of what it cost.
It is fairly large. Maybe 4 feet across. He cleans alternator cases
in it.

Dan

On 2009-05-15, James Waldby wrote:
On Fri, 15 May 2009 04:03:49 +0000, DoN. Nichols wrote:

On 2009-05-14, The Hurdy Gurdy Man wrote:

[ ... ]

Harbor Freight first. Finding a tumbler as large as the Eastwood one
is proving to be rather difficult. I just don't relish the idea of
spending $550 on the thing.

Have you ever seen the Blue Press catalog? They offer one for
cleaning cartridge cases for $179.95 (12-1/2 quart bowl capacity), and a
smaller one for $129.95 (half that size).
...
But -- you can check them out at http://www.bluepress.com (and
probably have to do a bit of searching to find the vibratory case
cleaners. (They're on page 18 of the current monthly catalog, if that
is any help.)

That bluepress link resolves to http://www.dillonprecision.com/,
while google on vibratory case cleaner "Blue Press" gives a link
http://www.dillonprecision.com/Case_Preparation_Equipment-8-8.html
with pictures of CV-2001 and CV-750 that appear to be those two
cleaners at those prices.

Yes -- those were what I was looking at in the catalog. Thanks
for digging out the links.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

On 2009-05-15, The Hurdy Gurdy Man wrote:
DoN. Nichols wrote:

Have you ever seen the Blue Press catalog? They offer one for
cleaning cartridge cases for $179.95 (12-1/2 quart bowl capacity), and a
smaller one for $129.95 (half that size).

I've looked at those, and as far as I can tell they're smaller. They look
like they might be better quality, but the bowls don't seem to be quite as

[ ... ]

There are some good sized ones available through Rio Grande (some are listed
as 20" with around a 6 gallon capacity), but of course they carry the Rio
Grande price tags. Truthfully, as Gunner as suggested, the best option for me
as I want one that's both large and cheap is to build my own, but I just don't
know what the hell I'm doing enough to build one without some sort of plans or
more solid background with the devices.

O.K. Basic design principles:

1) A container without sharp corners for things to pile up in.
Quick and dirty design would be to take an inner tube, inflate
it to the needed size, and cast in plaster or concrete. You
could use anything from dolly wheels up to find the right size.

2) Line the cast with fiberglass to make a shell light enough but
still the right half-doughnut shape. (Now is the time to add
mounts for the springs from (3) below and the motor.) While
you're about it -- consider taking the original inner tube and
gluing it to the inside of the shell, so your abrasive media
won't be generating fiberglass dust as it works.

3) Mount the shell on some stiff springs -- perhaps a bunch of old
valve springs from a dead engine. The number of springs will
vary with the size and the vibration speed, but I would guess
that three or four should do.

4) Mount an electric motor to the bottom of the center of the
shell, with an off-center weight mounted to the shaft. A
DC/universal motor would allow you to easily vary the speed to
optimize the vibration, for a given weight and set of springs.
You can also adjust the vibration by being able to adjust how
far off-center the weight is.

5) Oh yes -- figure some way to mount a lid over it while it
is in use, to keep the dust form the media and the workpiece
from winding up in your lungs.

So -- these are the basics of the design. Anything else is to
adapt to your own materials and junk motors, parts, and such.

These aren't rocket science, after all.

Enjoy,
DoN.

--
Email: | Voice (all times): (703) 938-4564
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---

We have two Royson industrial rectangular tub tumblers at work for cleaning
and deburring. They work great and last almost forever, and Royson's
customer service is excellent. They also make big industrial round ones and
small table-top round ones; look at
http://www.royson.com/minivibe.htm#minivibe and contact them for pricing.
If you are looking for something to use every now and then one of the
"hobby" brands might last you, but if you plan on running it most every day
then I think you will wear any of the little ones out pretty quickly.
Royson also sells media and they have experts to help you select the right
media and liquids. Yes, I'm a satisfied customer :-).

-----
Regards,
Carl Ijames

wrote:

If you want I will ask my neighbor about his vibratory tumbler. I did
not note who the manufacturer was and have no idea of what it cost.
It is fairly large. Maybe 4 feet across. He cleans alternator cases
in it.

I would definitely be interested to find out that information, thanks. It
still looks like the Eastwood one is the best balance between size and price,
but hearing about what other people are using helps immensely. Given the
huge price discrepancy between the Eastwood one and all the others I'm really
wondering if it'll hold up.

On May 16, 8:57*am, The Hurdy Gurdy Man
wrote:


I would definitely be interested to find out that information, thanks. *It
still looks like the Eastwood one is the best balance between size and price,
but hearing about what other people are using helps immensely. *Given the
huge price discrepancy between the Eastwood one and all the others I'm really
wondering if it'll hold up. *

Finally saw my neighbor. He has two vibratory bowl polishers. They
are both made by Sweco. One is small and the other is about seven
feet across. He will be selling them soon as he has retired.

Dan