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Old 17th September 2009   #34
Xenon
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Joined: Jul 2008
Location: Japan
Posts: 77

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Do you mean in

Options > "When first well is zero-depth, show half moved to the right end of panel, for symmetrical build"

This brings up a good point -- since splitting a left-side zero well is allowable, the need for spacers becomes 2.1 cm on each side. (An N23 with 4.25cm well-segments = 97.75cm in a 93.5cm (3') frame needs an extra 4.2cm total = a little less than one well).

Why don't I just make 97.75cm frames? It's because the plywood sheets are best cut at 91cm (they are actually 92.1cm x 183cm). Using 91cm, I can get square frames (183/2 = 91.5 - 0.3 for a saw cut = @91cm, voila), which means these panels can be laid vertical or horizontal in the same space. It's much easier to deal with a square frame than an almost square frame...

Anyway, 2cm spacer strips on the sides is no big deal. If I was building only N23 and a lot of them, I would spend more and build 97.75 frames, but it will more than double the price of the backing plywood to do this.

As I'm also making half-frames of N11 (4 in the live room and 4 in the mix room), you can take one 183 x 92cm panel and get 4 pcs., 44.5 x 91cm. This reveals why I went with 91cm backings, it's easy to stack 2 44.5cm units = 91cm, so it's modular. Keep in mind that the framing wood has to be longer than the backing. Anyway, it gets tricky. Also, for making fins and well faces, each saw cut loses 3mm in a panel. FYI, frame depth = 13.75cm, fin depth = 13.5cm, face 'depth' (for cutting purposes) = 4cm.

In four frames of 4cm wells, it's 80 fins, 80 faces or thereabouts. Lot's of cutting. I have the big cuts done at the Building Center ($0.30 each cut, and they will stack 5 sheets of 2.5mm = 1 cut). The small cuts I also did at the center for the first unit, but will give it a try at home.

Quote:
Originally Posted by terry j View Post
Mine is not open now, but it is one of the options (advanced?) listed along the top. You check the one that says something like 'move the last well half a place so they can join'
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