Econo isolation

Tweakers' Asylum

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In Reply to: Help me isolate my CDP posted by Boybees on February 19, 2003 at 09:28:07:

Hi Boybees,
What follows is an exerpt from my latest article. I hope you find it useful.

In order to provide a means of sampling what seismic isolation can do for your system, what follows are instructions for making your own equipment supports. Â Items 3, 6, 7 and 8 pertain to roller bearings. Â These can be used without air bearings to provide horizontal and rotational isolation only. Â Air bearings can be used to provide vertical isolation only, as in those commercial racks and platforms which use air bearings. Â Best results however, will be attained by using a combination of these to achieve multiple-axis seismic isolation.
1. Get yourself a bicycle tire inner tube for about $1.99. Â I use 18â€ inner tubes. Â The larger the circle described by the inner tube, the easier it is to balance the gear atop it.

2. Obtain a piece of plywood to use as a platform on top of the inner tube. Â I use 1â€ maple ply measuring 20â€ by 20â€.

3. Go to a crafts store and purchase 3 wooden, usually pine, Easter egg holders and some marbles for a total of less than $2.

4. Place the inner tube on your shelf. Â Inflate it only enough to hold the component up off the shelf. Â Too much air and you wonâ€™t get the benefits.

5. Place the plywood on top of the inner tube.

6. Place the three Easter egg holders on the plywood platform in the largest equilateral triangle that will fit under the gear you are going to support. Â I suggest trying your CD player first, though the benefits will add up as you float your other components as well.

7. Place a marble, or even better, a 1/2â€ steel ball bearing, in each of the Easter egg holders.

8. Carefully place your component atop the marbles, so they alone support it, holding it up so its own feet do not make contact with the plywood platform.

You have now constructed, for a cost of approximately $5, a simplified Enjoyyourshelf^Â©. Â Of course it can be improved upon for added expense but the point here is to demonstrate and share the concept. Â If you like what you hear, you can always take the design further.
Happy Listening!
Barry

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Follow Ups Full Thread

Topic - Help me isolate my CDP - Boybees 09:28:07 02/19/03 (9)

Re: Help me isolate my CDP - Jack Seaton 08:07:57 02/24/03 (0)

check those links - BobP 06:37:10 02/21/03 (0)

Re: Help me isolate my CDP - Mike Paolino 17:44:24 02/20/03 (0)

Re: Help me isolate my CDP - zanash 23:26:11 02/19/03 (0)

Vibrapods - randallt 22:10:20 02/19/03 (1)

Re: Vibrapods - klein@wfu.edu 10:25:29 02/20/03 (0)

Re: Help me isolate my CDP - David Aiken 13:45:25 02/19/03 (0)

Econo isolation - bdiament 10:30:03 02/19/03 (1)

yes good start - dave c 22:44:41 03/18/03 (0)

Follow Ups

Econo isolation - bdiament 10:30:03 02/19/03 (1)

yes good start - dave c 22:44:41 03/18/03 (0)

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Econo isolation

1. Get yourself a bicycle tire inner tube for about $1.99. Â I use 18â€ inner tubes. Â The larger the circle described by the inner tube, the easier it is to balance the gear atop it.

2. Obtain a piece of plywood to use as a platform on top of the inner tube. Â I use 1â€ maple ply measuring 20â€ by 20â€.

3. Go to a crafts store and purchase 3 wooden, usually pine, Easter egg holders and some marbles for a total of less than $2.

4. Place the inner tube on your shelf. Â Inflate it only enough to hold the component up off the shelf. Â Too much air and you wonâ€™t get the benefits.

5. Place the plywood on top of the inner tube.

6. Place the three Easter egg holders on the plywood platform in the largest equilateral triangle that will fit under the gear you are going to support. Â I suggest trying your CD player first, though the benefits will add up as you float your other components as well.

7. Place a marble, or even better, a 1/2â€ steel ball bearing, in each of the Easter egg holders.

8. Carefully place your component atop the marbles, so they alone support it, holding it up so its own feet do not make contact with the plywood platform.

You have now constructed, for a cost of approximately $5, a simplified EnjoyyourshelfÂ©. Â Of course it can be improved upon for added expense but the point here is to demonstrate and share the concept. Â If you like what you hear, you can always take the design further.

1. Get yourself a bicycle tire inner tube for about $1.99. Â I use 18â€ inner tubes. Â The larger the circle described by the inner tube, the easier it is to balance the gear atop it.

2. Obtain a piece of plywood to use as a platform on top of the inner tube. Â I use 1â€ maple ply measuring 20â€ by 20â€.

7. Place a marble, or even better, a 1/2â€ steel ball bearing, in each of the Easter egg holders.

You have now constructed, for a cost of approximately $5, a simplified Enjoyyourshelf^Â©. Â Of course it can be improved upon for added expense but the point here is to demonstrate and share the concept. Â If you like what you hear, you can always take the design further.