ryanjury Posted March 8, 2012 Report Share Posted March 8, 2012 I know most the calculators assume euro bracing and say that 10mm glass is sweet, so when taking bracing away would you goto 12mm glass? Quote Link to comment Share on other sites More sharing options...
#!CrunchBang Posted March 8, 2012 Report Share Posted March 8, 2012 Yes, My one the same size had to be 12mm because there was no bracing in the middle. Quote Link to comment Share on other sites More sharing options...
Zayne Posted March 8, 2012 Report Share Posted March 8, 2012 my 4 foot braced is 6mm so i would say 10 mm is quite thick for that size Quote Link to comment Share on other sites More sharing options...
Squirt Posted March 8, 2012 Report Share Posted March 8, 2012 my 4 foot braced is 6mm so i would say 10 mm is quite thick for that size +1 :dunno: seems a little thin to the 10mm. I have 6mm fully braced on my 4' too, plus it's what they sellin shops... Quote Link to comment Share on other sites More sharing options...
livingart Posted March 8, 2012 Report Share Posted March 8, 2012 if your going rimless on 2 foot deep I'd go to 12mm Quote Link to comment Share on other sites More sharing options...
ryanjury Posted March 8, 2012 Author Report Share Posted March 8, 2012 if your going rimless on 2 foot deep I'd go to 12mm Lol bugger that wont be cheap ESP with star fire on the front.. But yeah it was what I was expecting anyway just thought might have got away with 10mm. Quote Link to comment Share on other sites More sharing options...
livingart Posted March 8, 2012 Report Share Posted March 8, 2012 you could use 10mm i said 12 to give extra safety factor you could silicone in a small triangle in each top corner Quote Link to comment Share on other sites More sharing options...
Warren Posted March 10, 2012 Report Share Posted March 10, 2012 You can calculate the actual thickness of the glass by replacing the apha and beta constants with the ones below which modify the glass thickness calculator for the top edge of the glass unsupported. [table][tr][td]a/b[/td][td]beta[/td][td]alpha[/td][/tr][tr][td]0.5[/td][td]0.08[/td][td]0.0036[/td][/tr][tr][td]0.667[/td][td]0.1246[/td][td]0.0099[/td][/tr][tr][td]1[/td][td]0.2[/td][td]0.04[/td][/tr][tr][td]1.5[/td][td]0.36[/td][td]0.167[/td][/tr][tr][td]2[/td][td]0.44[/td][td]0.416[/td][/tr][/table] Quote Link to comment Share on other sites More sharing options...
Warren Posted March 10, 2012 Report Share Posted March 10, 2012 Here's the results: [table][tr][td]Safety Factor[/td][td]Thickness[/td][td]Deflection[/td][/tr][tr][td]2[/td][td]9.95mm[/td][td]4.76mm[/td][/tr][tr][td]2.5[/td][td]11.2mm[/td][td]3.41mm[/td][/tr][tr][td]3[/td][td]12.19mm[/td][td]2.59mm[/td][/tr][tr][td]3.5[/td][td]13.16mm[/td][td]2.06mm[/td][/tr][tr][td]3.8[/td][td]13.71mm[/td][td]1.82mm[/td][/tr][/table] 12mm Glass will give a safety factor of 2.91 - it's up to you to decide if this is enough... Quote Link to comment Share on other sites More sharing options...
diver21 Posted March 11, 2012 Report Share Posted March 11, 2012 looks like 10mm is still good with a saftey factor of 2ish. You could always drop the height a little, 20-18inch? Quote Link to comment Share on other sites More sharing options...
Squirt Posted March 11, 2012 Report Share Posted March 11, 2012 ( :smot: is there something wrong with the online glass thickness calculator? I've stuck in my values of my tank: 1700 length and 300 depth and 10mm glass and it's got a safety factor of 19?!) Quote Link to comment Share on other sites More sharing options...
antwan Posted March 11, 2012 Report Share Posted March 11, 2012 10mm is pretty thick for only 300 high Quote Link to comment Share on other sites More sharing options...
Squirt Posted March 11, 2012 Report Share Posted March 11, 2012 It's 580 high with about 300mm of water, so it is correct? :roll: (I was told to only use the values of the waterh height) Quote Link to comment Share on other sites More sharing options...
Joe Posted March 11, 2012 Report Share Posted March 11, 2012 Yep it sounds about right Quote Link to comment Share on other sites More sharing options...
blueether Posted March 11, 2012 Report Share Posted March 11, 2012 my 1200*600*600 tank is only made in 10mm glass with end bracing only Quote Link to comment Share on other sites More sharing options...
ryanjury Posted March 11, 2012 Author Report Share Posted March 11, 2012 Here's the results: [table][tr][td]Safety Factor[/td][td]Thickness[/td][td]Deflection[/td][/tr][tr][td]2[/td][td]9.95mm[/td][td]4.76mm[/td][/tr][tr][td]2.5[/td][td]11.2mm[/td][td]3.41mm[/td][/tr][tr][td]3[/td][td]12.19mm[/td][td]2.59mm[/td][/tr][tr][td]3.5[/td][td]13.16mm[/td][td]2.06mm[/td][/tr][tr][td]3.8[/td][td]13.71mm[/td][td]1.82mm[/td][/tr][/table] 12mm Glass will give a safety factor of 2.91 - it's up to you to decide if this is enough... Sweet cheers Warren might just go drop the depth to 500 to get the safety factor a bit higher.. Quote Link to comment Share on other sites More sharing options...
Warren Posted March 11, 2012 Report Share Posted March 11, 2012 At 500mm tall and 10mm glass you will have a safety factor of approx 3.5 Quote Link to comment Share on other sites More sharing options...
buzzy Posted March 21, 2012 Report Share Posted March 21, 2012 my tank is 500mm high, 10mm glass and rimless, when the tanks full there is a slight bow in the glass when looking down it but its been fine for the last few years and have never lost sleep over it! If you can get 12mm or even 15mm then I would. Quote Link to comment Share on other sites More sharing options...
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