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PostPosted: December 12th, 2017, 5:01 pm 
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Joined: July 8th, 2016, 4:34 pm
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Another way to insure stability is to have cylindrical spacers the length of distance between the shelves fit over the threaded rod (then 1/2 inch is fine and get the ordinary steel rod at Home Depot). The cylindrical spacers could be thick walled 2 inch pvc pipe (Home Depot again, sand off any lettering). You just need a way of making sure the end cuts are square. Not adjustable, but pvc pipe is cheap.


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PostPosted: December 12th, 2017, 6:01 pm 
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Joined: January 15th, 2015, 7:19 am
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Location: Baltimore MD
I built this years ago when the flexi was the big thingy on the web
I used 3/4 threaded rod from homeDepot and covered with black wiring harness stuff from auto store
when you put a bolt both on top and bottom of shelves an tighten down its very stable. I grounded points on the bottom of the rods.
Shelves are MDF hollowed out and filled with lead shot. Yes I am nuts!!!!


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PostPosted: December 12th, 2017, 6:14 pm 
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Pelliott321 wrote:
Yes I am nuts!!!!


That's a pre-requisite for joining this forum ;)

Roscoe

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PostPosted: December 12th, 2017, 6:33 pm 
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Joined: October 21st, 2013, 6:53 pm
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Pelliott321 wrote:
I built this years ago when the flexi was the big thingy on the web
I used 3/4 threaded rod from homeDepot and covered with black wiring harness stuff from auto store
when you put a bolt both on top and bottom of shelves an tighten down its very stable. I grounded points on the bottom of the rods.
Shelves are MDF hollowed out and filled with lead shot. Yes I am nuts!!!!


"MASS LOADING", It works for speakers too, but has to be done a littler more judicicially.


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PostPosted: December 13th, 2017, 10:32 am 
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https://www.mscdirect.com/browse/tn/Cla ... readed+rod

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PostPosted: December 13th, 2017, 11:56 am 
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Location: Baltimore MD
https://www.homedepot.com/p/Everbilt-3- ... /204276651
This is zinc coated but much cheaper. I needed more length so I used a coupler and added around 4 inches.
Can always use paint but the cable harness looks good and probably adds some dampening.
BTW only the two middle shelves are mass loaded.
I used three rods/feet, but if would ever make another one I would use four. I do want correct some mistakes
I made some day, but that project is way down the list.
BTW that is a modified Lead Balloon under my TT (Sota Star Sapphire upgraded to Nova 23 years ago)
This is an old picture, equipment has changed a bit. Logitech Touch is gone replaced by RPi3 server and the preamp in
now a scratch build 6EW7 of Gary Dews design. The preamp pictured is now with Shashi being modded


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