[sdiy] Metal enclosures - DIY'ing ?

[Quincas Moreira]

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.

On Tue, Jun 12, 2018 at 6:50 PM luther rochester <luther.rochester at gmail.com>
wrote:

> 1.5mm aluminum should be fine for most panels, provided you have bends
> in the long side (which provides a lot of extra strength).
>
> Like you mentioned, you might not get good clean bends with those cheap
> brakes (benders) though; I haven't used one, but a good one is 200+ KG.
>
> As you If you want to be able to bend all 4 sides you need a box/pan
> brake, which is much more expensive.
>
> Also, depending on the brake you might be limited to how shallow you can
> make the box (the side shown by '?' here):
>
> +--------------------------------+
> |                                | <----?
> +-o-                          -o-+
>
> For example my, brake can only do about 40mm or larger for this side,
> provided you want two bends.
>
> If you're just doing one or two projects it might be worth finding a
> fabrication shop that will make it for you. It would probably end up
> being the same price or cheaper, and you might get better results.
>
> --
> luther
>
>
>
>
> On 6/9/18 5:25 AM, sleepy_dog at gmx.de wrote:
> > Hey list.
> >
> > I just looked at some pictures of Moog synths like Model D, and even
> > more so, Voyager, again, and I must say I'm quite a fan of that kind of
> > case design and the fact you can tilt the upper part up to your liking,
> > and back in for less cumbersome transportation.
> >
> > Ok, apart from that, more generally: The upper part - metal case for
> > audio electronics, with front panel.
> >
> > Is that steel, or aluminum, or more importantly, whatever it is -
> > *could* you make that out of aluminum and it's be stable enough?
> > Probably only depends on the thickness. But I have no experience with
> > such things.
> >
> > So, is 1.5mm, or even 1.2mm, thickness of aluminum something that could
> > work decently for a case roughly Moog Voyager case sized? (I would be
> > willing "cheat" with some reinforcement bars here and there if that's
> > what it takes ;))
> >
> > Why 1.5mm (1.2) alu? Because that's the max thickness (for alu) handled
> > by the strongest of those manually operated sheet metal bending machines
> > that are fixed with a sturdy vice or such, for longer lengths it's only
> > 1,2mm. You turn a lever, presumably while making bear-like noises...
> > Well, those are floatnig around on ebay (here anyway) for 100...200 EUR,
> > depending on the max material length and thickness.
> >
> >
> > There you read my assumption - that one could bend parts of such a case
> > yourself. Perhaps not exactly like the Voyager - it looks like the upper
> > "5/6th of a box" are one part, or at least bent around two axes - they
> > would be in each others way if I tried that with such a contraption I
> > guess. And then just a plate at the bottom.
> > https://www.youtube.com/watch?v=ku0BdjNasko&t=2m32s
> > But maybe one could bend two halves, one "grabs around" in vertical, the
> > other in horizontal direction? Not only bending sides/front/back, but
> > another slimmer rim, another 90 degrees, to drill holes into and fix the
> > other part onto.
> >
> > (if it's not displayed with monospace font at your end, too bad ;))
> > +--------------------------------+
> > |                                |
> > +-o-                          -o-+
> >
> >
> > Anyway, if it turns out that 1.5mm aluminum* is far too thin for this,
> > at least for that size, I may forget about DIYing here (for things of
> > that size anyway), as I don't think I'd buy something much more
> > expensive than said contraptions for this purpose.
> >
> > * no harder than, I think it was called "6061". Because that's something
> > I can actually route openings out of, with my weak China CNC router.
> >
> >
> > - Steve
> >
> >
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-- 
Quincas Moreira
Test Pilot at VBrazil Modular
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