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Old 03-17-2008, 10:47 AM   #1
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"Home Made" grounded strips

Club owners, where have you purchased perforated aluminum plate for grounded strips? What was the cost? Anything to watch out for with respect to mounting and assuring conductivity?

We have 6 permanent strips, and would like to turn 2 into grounded "finals" strips. I found 60" wide perforated aluminum plate with varying levels of open area here http://www.diamondman.com/60staggered2.html , but am having a hard time getting the company to pay attention to my little order inquiry.

I know the arguments against "cheese grater" strips, but if the cost is reasonable I think I can live with it and keep the floor flat for classes.

Any advice would be greatly appreciated.

Tom Lucente
Richmond Fencing Club
www.richmondfencing.com
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Old 03-17-2008, 05:55 PM   #2
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Tom,

Rather than perforated aluminum plate, I would suggest that you look into a stainless steel wire mesh. I did two strips for my club in Houston for a reasonable cost. PM me for specs.
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Old 04-18-2008, 01:07 PM   #3
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Mesh ordered

After talking to Mergs, I ordered a roll of 304 stainless steel 12 x 12 .018" Plain Weave Woven Wire Mesh, 60" W/Selvage Edges x 100'. It ended up costing $725, delivered from Texas to Virginia. It should be here next week.

I'll post updates of the installation, and let everyone know how it works out.
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Old 04-18-2008, 04:01 PM   #4
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$725?!?!? OUCH. I'd have driven down there and brought back for ......... well, maybe not given gas prices now!

Let me know when you're going to install them and I'll come down and help. Have got lots of time on my hands until 2 Jun.

Schaeger7 - how are your two strips holding up?
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Old 04-19-2008, 06:37 PM   #5
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Only $135 of the total was shipping which, from Texas to Virginia on a truck, didn't sound that bad to me...the material itself was $595. Still 1/4 of what 2 aluminum strips, like the ones used at NACs, would cost.

I'll let you know when we plan to install.

Last edited by tlucente; 04-19-2008 at 06:39 PM..
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Old 04-19-2008, 07:47 PM   #6
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Way kewl.. waiting to hear from you.
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Old 04-22-2008, 02:41 PM   #7
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The price of metal is something scary these days.
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Old 04-30-2008, 06:04 PM   #8
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How are you planning to attach the screen to the floor? How are the edges protected? Do holes happen? How do you repair?
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Old 06-11-2008, 11:19 PM   #9
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2 strips completed

We have completed the installation of our first 2 stainless mesh strips.

The materials used were:

(1) roll, 304 SS Mesh, 5'X100.5'
(2) 1/8X1.25" steel bars
(2) 1/8X2.0" steel bars
(6) tubes JB Weld (6 steel, 6 activator)
Approx 40 #8x2" (or #10?) wood screws
(5) S hooks
(1) steel circle
Staples
50' coil of rope
Heavy duty wire ties
My car jack
some wood and nails

The process:

The SS mesh roll we received was 100.5', and to overlap the 2x4 sleepers in our floating floor, we cut 2 lengths 50'2". On the first strip, we used the 1/8x1.25" steel bars (2" on second strip), and JB welded one bar to each end of the length of mesh using 1tube steel/activator for each bar. These bars would be used to secure the strip ends to the floor. (see photo)

After letting the JB Weld cure overnight, we drilled holes for the anchor screws, about 10 on each end, in each bar. One end of each strip was also drilled with extra holes, closer to the edge, to connect our tensioning system. The "static" end was then secured to the floor with 2" wood screws after aligning with the existing strip lines.

I came up with this "wacky" S hook and metal ring tensioning system (see photo) using my car jack and some rope, hoping that the fact that the rope could "slip" along the ring would help even out the tension on each S hook pull point. It actually worked really well, wasn't that dangerous, and was able to tension the strip ALOT pulling against the edge of our raised floor. There is virtually no movement along the strip length.

With the strip still under tension, the other metal bar is screwed to the floor, and the edges of the strip were stapled, about every 2", while "combing" the width of the strip down with a 2'X4' piece of 3/4 particle board. It's very difficult to pull the strip along its width, and this was the best I could come up with. It seemed to work OK, and the strip lies very flat. Only after all stapling was the tension removed.

Things that were different than anticipated, or were changed:

-The mesh is much stiffer than I thought it would be, which was actually good.
-Used a wider bar on the 2nd strip, as the 1.25" bar flexed under the tensioning, with correspondingly more JB weld
-The roll of mesh came with 1 defect, a hole about dime size near the 2nd strip center line edge, which had to be patched. We cut a patch out of extra material, and stapled it to the floor before placing the strip on top. A patch on top would have been uneven, and this seemed a good solution, since we don't have the ability to weld stainless steel.
-One strip has been down about a month, without and complaints or damage. The other only a week.
-You can see the existing strip lines through the mesh

Total cost was about $925-950 for 2 complete grounded strips. $725 for the mesh, the rest for the above mentioned bars, screws, etc.

Here are some photos. Let me know if anyone has any questions, suggestions, or comments.

Thanks again to Mergs for his help getting me pointed in the right direction.
Attached Images
File Type: jpg completed.jpg (56.6 KB, 183 views)
File Type: jpg endbar.jpg (63.6 KB, 149 views)
File Type: jpg pulley.jpg (72.6 KB, 169 views)

Last edited by tlucente; 06-11-2008 at 11:30 PM..
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Old 06-12-2008, 11:08 AM   #10
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Very nice.

Thanks for sharing.

-B
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Old 06-13-2008, 01:26 AM   #11
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Wow, looks fantastic! Looking forward to checking it out in person.
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Old 06-13-2008, 08:25 AM   #12
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Sehr, tres`, bueno nice!!!!! Would have loved to have been there to see it go in. Excellent job. Would you mind if I include the installation proceedure in the next edition of my book? Or in the next one that is planned to cover more advanced topics like this?

I would love to come down to fence on it to see how it holds up. Will contact you when things with new home and job settle down.

Again, great job!
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Old 06-13-2008, 08:37 AM   #13
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Thanks Mergs, and we'd be honored to have the procedure go in the next book, assuming the installation holds up. We did the whole thing in fits and starts, sometimes on the spur of the moment after practice, or I would certainly have asked you to come down. It was actually relatively simple, once we figured out how we wanted to do it.

Thanks again, and hope to see you soon.
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Old 06-13-2008, 08:57 AM   #14
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Thanks, Tom. I'll be sure to give you guys credit and I look forward to coming down. I hope to start making it to more tourneys this year. Yeah, I know, if I make it to one, that'll be more than I have in the past TWO years!
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Old 08-08-2008, 01:41 PM   #15
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Tom,
How are they holding up?
Jose
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Old 02-07-2009, 04:52 AM   #16
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Originally Posted by Mergs View Post
Tom,

Rather than perforated aluminum plate, I would suggest that you look into a stainless steel wire mesh. I did two strips for my club in Houston for a reasonable cost. PM me for specs.
I think you are correct for that... stainless steel wire mesh is better....


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Old 02-07-2009, 07:55 AM   #17
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Quote:
Originally Posted by JEC View Post
Tom,
How are they holding up?
Jose
In case anyone is wondering, the strips are holding up very well. I've noticed maybe 2 places where an overzealous foot touch attempt had pushed some mesh out of square, but since the mesh is so "tight" it really doesn't matter for conductivity or affect the smoothness. No holes, other than the one that came on the original roll.

Even with nightly use, and heavier use on tournament weekend, there is still no movement along the length...even on very fast stop/start situations, like a Sabre fencer escaping an attack and then coming forward. Traction is really nice.

If you have a permanent space, and want to keep the floors flat for classes, this is a great low(er) cost solution.
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