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Looking for weights that can slide onto a 15mm rod...


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#1 Charles Papert

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Posted 07 February 2010 - 02:41 PM

For a non-Steadicam project, I'm trying to find compact weights between .75 and 1.5 lbs that already have a 15mm or smaller center hole, or are simply solid. Trying to keep it simple rather than overloading my already overloaded machinist by giving him a block of heavy metal to fabricate these. Anyone have a line on anything like this?

thanks
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#2 Jess Haas SOC

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Posted 07 February 2010 - 03:38 PM

Last time I was at industrial metal supply they had a number of precut round pieces of metal that would probably work well for this. No center holes but if you need a hand with the holes I can drill a 15mm hole in them for you and could drill and tap a set screw or some sort of clamping mechanism as well.

~Jess
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#3 Mike Germond SOC

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Posted 07 February 2010 - 03:49 PM

I wouldn't mind hearing what your guys' favorite clamping methods are and where you are sourcing the set screws from. I am designing a handful of 15mm rod brackets to hold various components and this has left me scratching my head..
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#4 Charles Papert

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Posted 07 February 2010 - 03:54 PM

What kind of metal, Jess?
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#5 Jess Haas SOC

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Posted 07 February 2010 - 04:10 PM

What kind of metal, Jess?

They had both steel and aluminum ones. They also have scales handy.
I saw them at the Sun Valley location but would guess that they have similar stuff in the show rooms of their other locations as well.
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#6 Jess Haas SOC

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Posted 07 February 2010 - 04:12 PM

For set screws and all sorts of other hardware: http://www.mcmaster.com/
If you are close to one of their locations you can order it will call and pick it up their so that you don't have to pay shipping.

~Jess
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#7 Peter Hoare

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Posted 13 February 2010 - 07:54 PM

Hi Charles,

Strange you should mention this, I have been thinking about making something like this for a while. I planned on using Tungsten carbide, which is 40% heavier than lead for volume, and apparently its the second hardest thing on the planet, next to diamond.

Can cut it like butter with the wire though, so it would be easy to make some weights.

How big do you want, can do them pretty easily and send them over....


Pete.
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#8 Brant S. Fagan SOC

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Posted 14 February 2010 - 09:31 AM

Gents-- For holding round things on round things, nothing beats a pair of shaft collars, either one- or two-piece collars in either steel or aluminum. I use Reid Supply for parts like this as they have a great selection of sizes and material types.

www.reidsupply.com
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#9 Kevin Andrews SOC

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Posted 14 February 2010 - 06:29 PM

For a non-Steadicam project, I'm trying to find compact weights between .75 and 1.5 lbs that already have a 15mm or smaller center hole, or are simply solid. Trying to keep it simple rather than overloading my already overloaded machinist by giving him a block of heavy metal to fabricate these. Anyone have a line on anything like this?

thanks



How about these Charles?

http://store.zacuto.com/Z-Lite.html
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#10 Charles Papert

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Posted 14 February 2010 - 07:05 PM

Thanks Kevin, saw those. At 3.5 lbs, 3-5 times heavier than what I'm looking for.
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#11 RonBaldwin

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Posted 14 February 2010 - 08:27 PM

Hey buddy, I thought you found a source for the weights!?

Stretch
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#12 Kevin Andrews SOC

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Posted 14 February 2010 - 09:04 PM

Thanks Kevin, saw those. At 3.5 lbs, 3-5 times heavier than what I'm looking for.



Ah ok. Wasn't sure how strict the weight limit was.
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#13 nick franco

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Posted 14 February 2010 - 09:44 PM

What Mr. Fagan said.

For some clamp on options of all sizes.
http://www.mcmaster....collars/=5tkzty

For steadi applications.
Don't know weights.

All available in stainless as well.

Posted Image

http://www.mcmaster....6063k33/=5tkpwi

Doublewide
one piece
Posted Image
http://www.mcmaster....9947k18/=5tkuae

Two piece, a little more flexible for mounting.
Posted Image
http://www.mcmaster....8389k18/=5tkvgr

3/4 inch= 19.05 with our bushing reducers might fit to use on 19mm rods.
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