brainwave-generator Posted June 1, 2011 Share Posted June 1, 2011 ....and their 'acoustic foam' is open-cell making it acoustically useless. They call it sound-proof... As a material to help control or modify RT60, reflections etc., open cell foams (albeit with controlled cell size and structure, and often with specific additives to improve its fire retardancy ) account for much of studio acoustic treatments. In this role, open cell foams are acoustically useful. True, but with too little mass in open cell foam, the sound will go through the foam, reflect off the surface behind it, and come back through. I have a piece of their 'acoustic foam' in front of me as I used it in a flightcase lid; I will say that acoustically it will achieve nothing that could not me achieved with a regular packing blanket. Link to comment Share on other sites More sharing options...
Simon Lewis Posted June 1, 2011 Share Posted June 1, 2011 Marking a bit boring, Simon?Just 60 log books, 30 essays and 60 exam scripts to go... flight case assembly is a form of escapism! Link to comment Share on other sites More sharing options...
Ashley R Posted June 2, 2011 Share Posted June 2, 2011 Plywood sprayed black is much cheaper then hexaboard or acrylic coated plywood - that's pretty obvious, but if you want a case that is protective and don't care that it looks like .....painted wood is fine. If you want a case that doesn't stand out as something knocked up in the shed, then you have to use proper materials and pay the extra. That's not necessarily always the case. There is a fairly large Production/hire business down here that has a fleet of cases constructed from 12mm ply Painted in purple/magenta (Their company colour), then finished off with Penn Fabrication/Elcom parts. Don't look one bit home made, and no they don't specialise in flight case's, although another arm of them does manufacture truss. Just had a thought, I'm not sure of the cost but Penn Fabrication also supplies just the sheets of Laminate, which you can then apply yourself, might work out cheaper than buying pre made sheets (Dependent on how friendly you are with your local timber yard) Link to comment Share on other sites More sharing options...
mac.calder Posted June 2, 2011 Share Posted June 2, 2011 Hmmm... The only Vic company I know with that colour scheme use laminated ply. You can get sheets that you apply yourself (generally using an iron (for the self laminating stuff) or spray adhesive) although finding it in a solid colour is not easy. Link to comment Share on other sites More sharing options...
paulears Posted June 2, 2011 Share Posted June 2, 2011 12mm ply?? The cases would overload the truck empty! Link to comment Share on other sites More sharing options...
gyro_gearloose Posted June 2, 2011 Share Posted June 2, 2011 I've seen quite a few amp racks built out of 12mm ply. They've used proper flightcase handles, catches, and wheels, but not metal edge/corner pieces. Given the weight of the amps, the use of 12mm ply is a good idea... Link to comment Share on other sites More sharing options...
paulears Posted June 2, 2011 Share Posted June 2, 2011 I've got some studio racks made from 12mm ply (and 12mm MDF) and they are super strong, but can you imagine how heavy a double mover case in 12mm would be, full? Wow! Link to comment Share on other sites More sharing options...
savage1 Posted June 2, 2011 Share Posted June 2, 2011 IIRC PRG had some big cases made out of 12mm ply I seem to remember 1 of them being full of stage weights too. Link to comment Share on other sites More sharing options...
brainwave-generator Posted June 2, 2011 Share Posted June 2, 2011 Plywood sprayed black is much cheaper then hexaboard or acrylic coated plywood - that's pretty obvious, but if you want a case that is protective and don't care that it looks like .....painted wood is fine. If you want a case that doesn't stand out as something knocked up in the shed, then you have to use proper materials and pay the extra. That's not necessarily always the case. There is a fairly large Production/hire business down here that has a fleet of cases constructed from 12mm ply Painted in purple/magenta (Their company colour), then finished off with Penn Fabrication/Elcom parts. Don't look one bit home made, and no they don't specialise in flight case's, although another arm of them does manufacture truss. Just had a thought, I'm not sure of the cost but Penn Fabrication also supplies just the sheets of Laminate, which you can then apply yourself, might work out cheaper than buying pre made sheets (Dependent on how friendly you are with your local timber yard) Just a little one for this discussion... For a mix of pro looking and cheap, cover the bare plywood case in spray-PVA glue, then throw sand on it. Shake off the excess (maybe easier when wood is still in pieces, rather than whole case) and then paint it. The texture of the sand remains visible and looks great. Link to comment Share on other sites More sharing options...
timd Posted June 2, 2011 Share Posted June 2, 2011 Just a little one for this discussion... For a mix of pro looking and cheap, cover the bare plywood case in spray-PVA glue, then throw sand on it. Shake off the excess (maybe easier when wood is still in pieces, rather than whole case) and then paint it. The texture of the sand remains visible and looks great. Bit rough on the hands surely? Tim Link to comment Share on other sites More sharing options...
Simon Lewis Posted June 2, 2011 Share Posted June 2, 2011 http://www.efoam.co.uk/img/acousticdiagram.png Seems to behave like most simple acoustic foams... the depth will be important... ;-) Bit rough on the hands surely?Why not paint it with Trimite (if they still sell such VOC heavy paint) It had hard wearing granules in it... Link to comment Share on other sites More sharing options...
Ashley R Posted June 3, 2011 Share Posted June 3, 2011 Hmmm... The only Vic company I know with that colour scheme use laminated ply. You can get sheets that you apply yourself (generally using an iron (for the self laminating stuff) or spray adhesive) although finding it in a solid colour is not easy. Just to be clear im talking about ResX. The cases that I can seen (in variations of age from almost brand new, to looking like they have led a tough life) that have got the ResX colour scheme definately appear to be painted, Not just a simple single spray but multiple layers of something quite thick. And in conjunction to thier custom cases they use the Custom cases from Manufacturer's for thier moving lights and a fleet of Encore cases (I must say the extrusions on these cases are awfully thin!) 12mm ply?? The cases would overload the truck empty! Definitely 12mm ply, measured it and could feel the weight of the thing when it was empty! Talking to some people who have worked there and they said they have some massive 1.5m+ long cases that they occasionally fill with cable..... Link to comment Share on other sites More sharing options...
mac.calder Posted June 3, 2011 Share Posted June 3, 2011 yeah I figured you were talking resX. Yes,they have SOME that are 12mm and painted, but the majority of their general stock is in regular cases. Especially the movers. The cable trunks etc are large and heavy - but compared to the weight of the cables inside, that is nothing... it's all proportional. Link to comment Share on other sites More sharing options...
musht Posted June 3, 2011 Share Posted June 3, 2011 If you can get a very dust free enviroment to apply it, car wrapping vinyl makes a pretty good timber finish. Link to comment Share on other sites More sharing options...
Ashley R Posted June 3, 2011 Share Posted June 3, 2011 yeah I figured you were talking resX. Yes,they have SOME that are 12mm and painted, but the majority of their general stock is in regular cases. Especially the movers. The cable trunks etc are large and heavy - but compared to the weight of the cables inside, that is nothing... it's all proportional. Ah ok, Only ever experienced being on the tail end of some of their hire's and never been to their factory. It was just the cable trunks that were of the ResX brand, all the movers were in their Martin built cases. I don't work on massive shows, but I would certainly like to see how the hell do you move a case that big filled with copper..... especially after seeing the lengths the Linkin Park (local) crew were going to to get much smaller cases into the back of the waiting semi's, but they must do it somehow otherwise they wouldn't build cases that big! Link to comment Share on other sites More sharing options...
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