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Old 08-03-2013, 05:57 AM
karl-nc karl-nc is offline
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Default fish tank stand

Did a quote about a month ago for this fish tank stand. I figured it out of 14ga 1.5" tube. It will have a 220 gallon custom made tank on it.

He brought the deposit yesterday and informed me his tank builder said this stand had to be perfectly flat or the tank will crack. Wasn't thinking about it when he showed up, but I have nothing that large and flat to clamp it down to. Not sure if I should mess with it or not. The tank is costing him $1000

What would you do?
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Old 08-03-2013, 08:06 AM
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Quote:
said this stand had to be perfectly flat or the tank will crack
Even with an extremely flat surface of 1" plate for a table top large enough, you'd still have anomolies.

You might find some way to shoot, as in Theodalite or Laser and take off the high spots.

What sort of top will be added to the frame? Will the tank sit on the bare frame? etc etc

Insurance? A thousand dollar box of glass sounds real expensive for the fabricator.
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Old 08-03-2013, 08:57 AM
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I would guesss at that kind of money its not glass but acrylic . I would alsso agree laser level .


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Old 08-03-2013, 08:58 AM
karl-nc karl-nc is offline
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Quote:
Originally Posted by LW Hiway View Post
Even with an extremely flat surface of 1" plate for a table top large enough, you'd still have anomolies.

You might find some way to shoot, as in Theodalite or Laser and take off the high spots.

What sort of top will be added to the frame? Will the tank sit on the bare frame? etc etc

Insurance? A thousand dollar box of glass sounds real expensive for the fabricator.
Tank will be sitting on the bare frame.

Think I'm gonna return his deposit and pass.
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Old 08-03-2013, 09:15 AM
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Even if you built it flat, I would imagine there should be some sort of compliant/compressible material between the stand and the glass as a bedding material. Closed cell foam or cork ...

Regardless of what you do, if it is set up on a slightly uneven or flexible floor, the weigh could twist the frame and result in disaster. Granite surface plates are supported on three points for this reason.

I would want to talk with the tank builder about the tank construction details and recommended bedding.

That thing will weight around 2,100. lb filled.
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Old 08-03-2013, 10:13 AM
karl-nc karl-nc is offline
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Told the guy I couldn't do it because of the zero tolerance. found out there is a "compliant/compressible material between the stand and the glass as a bedding material. Closed cell foam or cork ... " like usmcpop was referring to.

I told him I would do it. and he would inspect ,approve and I would be resolved of all issues after that

thanks for the help
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Old 08-03-2013, 10:50 AM
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The real fine-grained thick MDF is pretty flat. That might give you something to use to eyeball the flatness. Know anyone with a nice big granite counter top?
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Old 08-03-2013, 12:08 PM
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for perfectly flat, read.. welds ground flush on glass mount surface.
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Old 08-03-2013, 12:56 PM
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Quote:
Originally Posted by Steve60 View Post
for perfectly flat, read.. welds ground flush on glass mount surface.
I was thinking a piece of glass would be pretty flat. You could use something like a, a , a FISH TANK to see if it's flat.
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Old 08-03-2013, 03:24 PM
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It's best to have him (and/or the tank fabricator) inspect and ok the stand. It may be square, flat, and level when it leaves your shop but you have no control over where it's installed or what it's installed on.

Years ago my brother put a large aquarium in his dining room, wasn't thinking and put it the same way the joists were running. Turned out all the weight was on one joist. Tank and stand all ended up in the basement ceiling. Cost him a lot to get the house put back right.
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