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Thanks guys for the replies so far, despite my somewhat unfocused
message ;-)<br>
<br>
I don' want to bend 4 sides no, 2 is fine.<br>
Ah yes, bend the long sides for the front panel for stability -
good hint!<br>
<br>
As for brittle 6061 aluminum - i remember having read something
about some types which don't bend well at room temperature could
be put into an oven, IIRC they axplicitly said baking oven, so no
insanely high temperatures (although probably still a challenge to
handle for bending).<br>
I guess I need to research that more.<br>
Don't know if such cheap bending device would allow it, but I
wouldn't necessarily mind a not so tight radius, look at the
MiniMoog Model D case, it has a huge radius, IIRC.<br>
Will have to research about 5052 - I read softer aluminum is
"gummier" and loads the tool more, my feeble router may not be
made for that.<br>
<br>
> Don't get me wrong im not trying to put you off though......
Quite the opposite it's great to see someone willing to put the
energy in to even thinking of the options :)<br>
> Seems diy these days for many means paint by numbers kits
that include a panel already punched and screened for them. <br>
<br>
D-I-Y or die!<br>
<br>
(ok, maybe not ;) But doesn't it have a ring to it)<br>
<br>
- Steve<br>
<br>
<br>
Am 13.06.2018 um 03:11 schrieb John Marshall:<br>
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<p class="MsoNormal">6061-T6 is the most common aluminum alloy.
However it is brittle and my crack if bent too sharply. T6 is
the temper rating. 5052 is more easily bent in a tight radius.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">John L Marshall<br>
<a class="moz-txt-link-abbreviated" href="mailto:wa7bsr@gmail.com">wa7bsr@gmail.com</a><br>
<a class="moz-txt-link-abbreviated" href="http://www.sound-photo.com">www.sound-photo.com</a></p>
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<p class="MsoNormal" style="border:none;padding:0in"><b>From:
</b><a moz-do-not-send="true"
href="mailto:quincas@gmail.com">Quincas Moreira</a><br>
<b>Sent: </b>Tuesday, June 12, 2018 5:49 PM<br>
<b>To: </b><a moz-do-not-send="true"
href="mailto:luther.rochester@gmail.com">luther.rochester@gmail.com</a><br>
<b>Cc: </b><a moz-do-not-send="true"
href="mailto:synth-diy@synth-diy.org">synth-diy mailing
list</a><br>
<b>Subject: </b>Re: [sdiy] Metal enclosures - DIY'ing ?</p>
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<p class="MsoNormal">The way I do it is 2mm Aluminum, bent
only on top and bottom, then I make wood sides. Much easier
than trying to bend all 4 sides, and looks good too! That's
for the Chassis, then goes the panel, bolted to the wood
sides and to L brackets attached to the aluminum chassis.</p>
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<p class="MsoNormal">On Tue, Jun 12, 2018 at 6:50 PM luther
rochester <<a moz-do-not-send="true"
href="mailto:luther.rochester@gmail.com">luther.rochester@gmail.com</a>>
wrote:</p>
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<p class="MsoNormal">1.5mm aluminum should be fine for most
panels, provided you have bends <br>
in the long side (which provides a lot of extra strength).<br>
<br>
Like you mentioned, you might not get good clean bends
with those cheap <br>
brakes (benders) though; I haven't used one, but a good
one is 200+ KG.<br>
<br>
As you If you want to be able to bend all 4 sides you need
a box/pan <br>
brake, which is much more expensive.<br>
<br>
Also, depending on the brake you might be limited to how
shallow you can <br>
make the box (the side shown by '?' here):<br>
<br>
+--------------------------------+<br>
| | <----?<br>
+-o- -o-+<br>
<br>
For example my, brake can only do about 40mm or larger for
this side, <br>
provided you want two bends.<br>
<br>
If you're just doing one or two projects it might be worth
finding a <br>
fabrication shop that will make it for you. It would
probably end up <br>
being the same price or cheaper, and you might get better
results.<br>
<br>
--<br>
luther<br>
<br>
<br>
<br>
<br>
On 6/9/18 5:25 AM, <a moz-do-not-send="true"
href="mailto:sleepy_dog@gmx.de" target="_blank">sleepy_dog@gmx.de</a>
wrote:<br>
> Hey list.<br>
> <br>
> I just looked at some pictures of Moog synths like
Model D, and even <br>
> more so, Voyager, again, and I must say I'm quite a
fan of that kind of <br>
> case design and the fact you can tilt the upper part
up to your liking, <br>
> and back in for less cumbersome transportation.<br>
> <br>
> Ok, apart from that, more generally: The upper part -
metal case for <br>
> audio electronics, with front panel.<br>
> <br>
> Is that steel, or aluminum, or more importantly,
whatever it is - <br>
> *could* you make that out of aluminum and it's be
stable enough?<br>
> Probably only depends on the thickness. But I have no
experience with <br>
> such things.<br>
> <br>
> So, is 1.5mm, or even 1.2mm, thickness of aluminum
something that could <br>
> work decently for a case roughly Moog Voyager case
sized? (I would be <br>
> willing "cheat" with some reinforcement bars here and
there if that's <br>
> what it takes ;))<br>
> <br>
> Why 1.5mm (1.2) alu? Because that's the max thickness
(for alu) handled <br>
> by the strongest of those manually operated sheet
metal bending machines <br>
> that are fixed with a sturdy vice or such, for longer
lengths it's only <br>
> 1,2mm. You turn a lever, presumably while making
bear-like noises... <br>
> Well, those are floatnig around on ebay (here anyway)
for 100...200 EUR, <br>
> depending on the max material length and thickness.<br>
> <br>
> <br>
> There you read my assumption - that one could bend
parts of such a case <br>
> yourself. Perhaps not exactly like the Voyager - it
looks like the upper <br>
> "5/6th of a box" are one part, or at least bent
around two axes - they <br>
> would be in each others way if I tried that with such
a contraption I <br>
> guess. And then just a plate at the bottom.<br>
> <a moz-do-not-send="true"
href="https://www.youtube.com/watch?v=ku0BdjNasko&t=2m32s"
target="_blank">https://www.youtube.com/watch?v=ku0BdjNasko&t=2m32s</a><br>
> But maybe one could bend two halves, one "grabs
around" in vertical, the <br>
> other in horizontal direction? Not only bending
sides/front/back, but <br>
> another slimmer rim, another 90 degrees, to drill
holes into and fix the <br>
> other part onto.<br>
> <br>
> (if it's not displayed with monospace font at your
end, too bad ;))<br>
> +--------------------------------+<br>
> | |<br>
> +-o- -o-+<br>
> <br>
> <br>
> Anyway, if it turns out that 1.5mm aluminum* is far
too thin for this, <br>
> at least for that size, I may forget about DIYing
here (for things of <br>
> that size anyway), as I don't think I'd buy something
much more <br>
> expensive than said contraptions for this purpose.<br>
> <br>
> * no harder than, I think it was called "6061".
Because that's something <br>
> I can actually route openings out of, with my weak
China CNC router.<br>
> <br>
> <br>
> - Steve<br>
> <br>
> <br>
> _______________________________________________<br>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- </p>
<p class="MsoNormal">Quincas Moreira<br>
Test Pilot at VBrazil Modular</p>
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