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13-10-2009 #1
Guys - looking for someone who can machine an ally enclosure between the following min/max dimensions:
....... contacted 32 companies in the UK who advertise steel and alloy die cast enclosures for sale - not one could offer an enclosure between these sizes :whistling:.......... (yer, what's become of UK manufacturing? - that new steam engine that's just been built in the UK - we had to get the Germans - the Germans!!! - to make the boiler - this country, used to be the world leaders in steam engine design/construction)
Length (internal): 300mm – 310mm (min – max)
Width (internal): 100mm – 110mm (min – max)
Depth (internal): 32mm - 36mm (min – max)
Wall thickness: 3.5mm - 4.5mm (min -max)
Lid to go on top required - same thickness as enclosure wall thickness.
Aolly type: 6061, 7075 ... whatever, makes little difference.
If anyone out there is willing to take this on, drop me a note please. No such thing as a free lunch ... yes, thats understood.
Quite happy for someone to take this on on a "hobby" basis - theres no IP or DIN spec, or any other spec that has to be satisfied.
Thanx guys
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14-10-2009 #2
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16-10-2009 #3
Irving2008
Nope - no probs if the base is removable, and there is no issue regards edge radius - square, rounded .. whatever - use whatever tool you have. I'd say from true square to as much as 2mm - 3mm will be fine.....
What do
What do you have in mind regards fixture for top/bottom lids (?)- so long as the wall thickness is sufficient for small self-tapping type screws, that will be fine as I intend to cut a gasket in any case.
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16-10-2009 #4
Have a look at Penn Fabrication's Module stage box system
A couple of lengths of their corner extrusion and a few plates of aluminium and bob's yer uncle...
Retail quantities can be bought from CPC:
http://cpc.farnell.com/_/10345-20/co...ule/dp/EN55970
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16-10-2009 #5
I was trying to find 300 x 100 x 3.2mm ali box section but no one does it that size in ali only in steel.
machining it out of 1.75" ally plate is a possible, but its £25 worth of ali. However if you plunge cut it all the way through with a 10mm cutter at least you'd end up with an approx 280 x 80 remnant which is useful; then make top n bottom out of 4mm plate.
Another option is to make it up from 4mm plate and weld up the corners... then machine clean
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17-10-2009 #6
Gosh that's brave, how are you going to hold it down and stop it bending away from the tool/galling once the temper has gone :naughty:
32mm deep doesn't exactly lend itself to small internal corner radii and the spec is too loose. Sounds like an invitation either to do a lot of drawing and not get the job, or chop up £25 worth of stock and then get told it's all wrong. I can see why he's having problems finding a volunteer :whistling:
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17-10-2009 #7
Well, strangely enough, I was looking into ali welding for another problem and i came across Durafix which might do the job. Anyone used it?
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17-10-2009 #8
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