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Xenon · 25th September 2009

Hi everyone,

Here are some links to the N23 build -- the first test array.

Construction plan (dimensions & image)

Photos

Foam cut sheet for seven N23 arrays (approx 94cm x 94cm, or 3' x 3' each)

Building 12 N23 and 4 N19, the next four+ days

We have made some improvements to the frame.
Due to white glue, our length was 8mm longer than dry fit (which was perfect).
As a result, we are using wood-scrap spreaders to thinly spread the glue (will report back on this).
Tried rubber cement --it eats the XPS foam. White glue has the advantage of cost (very cheap) and if a mistake is made, it can be remedied within about 24 hours.

FYI, total cost per N23 panel is under $50., and N19 is projected at just under $40. Though we spent $600. in air tools (haven't you always wanted that compressor?). Highest cost construction items for us are XPS ($11.20./panel) followed closely by fins (dividers). Even including the cost of air tools, we will comple our diffusion plan for the live and mix room for about $1300., which matches our hoped for budget. We will need less $$ in DIY absorption (though acceptable rockwool is almost 2x the price in the USA), with no extra tool costs (and use the air tools to advantage).

25th September 2009	#55
Xenon Gear nut Joined: Jul 2008 Location: Japan Posts: 77 Thread Starter	N23 Build (test) Hi everyone, Here are some links to the N23 build -- the first test array. Construction plan (dimensions & image) Photos Foam cut sheet for seven N23 arrays (approx 94cm x 94cm, or 3' x 3' each) Building 12 N23 and 4 N19, the next four+ days We have made some improvements to the frame. Due to white glue, our length was 8mm longer than dry fit (which was perfect). As a result, we are using wood-scrap spreaders to thinly spread the glue (will report back on this). Tried rubber cement --it eats the XPS foam. White glue has the advantage of cost (very cheap) and if a mistake is made, it can be remedied within about 24 hours. FYI, total cost per N23 panel is under $50., and N19 is projected at just under $40. Though we spent $600. in air tools (haven't you always wanted that compressor?). Highest cost construction items for us are XPS ($11.20./panel) followed closely by fins (dividers). Even including the cost of air tools, we will comple our diffusion plan for the live and mix room for about $1300., which matches our hoped for budget. We will need less $$ in DIY absorption (though acceptable rockwool is almost 2x the price in the USA), with no extra tool costs (and use the air tools to advantage).