STFM case remake

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exxos
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Re: STFM case remake

Post by exxos » Sun Dec 10, 2017 8:11 pm

Maeke wrote:
Sun Dec 10, 2017 8:07 pm
Then diy lasercutted acrylic?
Not looked into it, but assume it would be more expensive than SLA printing.
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Re: STFM case remake

Post by Maeke » Sun Dec 10, 2017 8:17 pm

exxos wrote:
Sun Dec 10, 2017 8:11 pm
Maeke wrote:
Sun Dec 10, 2017 8:07 pm
Then diy lasercutted acrylic?
Not looked into it, but assume it would be more expensive than SLA printing.
Not if we just share the files and guys having a lasercutter make it themselves.
This way you just have to sell the idea.
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Re: STFM case remake

Post by rpineau » Sun Dec 10, 2017 8:29 pm

I pointed that out too a while ago (may be not in this thread), but diy laser cut acrylic (or wood, or ...) is cheap.
The main cost is the laser cuter.
An acrylic sheet of 508 x 812.8 * 2.4 mm is $19 (50.8cm x 81.28cm x 2.4mm)
There are a lot of example for these for the Raspberry Pi. Of course for a ST this will be bigger but same principle :
https://www.2printbeta.de/images/raspi-box-web.jpg

As said, the main cost is a laser cuter than is big enough to cut the bottom part of the case as ST are not small :)
Something like the Glowforge can do 11.5″ (290 mm) by 20″ (515 mm) with a cutting depth of 13mm (that's thick :) ). So a 2.4mm acrylic sheet is not an issue.

Rodolphe

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Re: STFM case remake

Post by rpineau » Sun Dec 10, 2017 8:32 pm

I agree with Maeke.
The main cost is laser cutting is the laser cutter.
The material, as aI pointed out above, is fairly cheap.
The main hurdle is producing the SVG files for all part.
you then need some post for the mother board and floppy, ....
This allows one to get a "normal" ST case, or expand on it by modifying the top part to add slots for new devices, cards, ....
Rodolphe

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Maeke
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Re: STFM case remake

Post by Maeke » Sun Dec 10, 2017 8:52 pm

rpineau wrote:
Sun Dec 10, 2017 8:29 pm
I pointed that out too a while ago (may be not in this thread), but diy laser cut acrylic (or wood, or ...) is cheap.
The main cost is the laser cuter.
An acrylic sheet of 508 x 812.8 * 2.4 mm is $19 (50.8cm x 81.28cm x 2.4mm)
There are a lot of example for these for the Raspberry Pi. Of course for a ST this will be bigger but same principle :
https://www.2printbeta.de/images/raspi-box-web.jpg

As said, the main cost is a laser cuter than is big enough to cut the bottom part of the case as ST are not small :)
Something like the Glowforge can do 11.5″ (290 mm) by 20″ (515 mm) with a cutting depth of 13mm (that's thick :) ). So a 2.4mm acrylic sheet is not an issue.

Rodolphe
Another solution is making yourself the laser cutter, this way it will be at the size you need.
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Re: STFM case remake

Post by exxos » Sun Dec 10, 2017 9:12 pm

A quick look at 400x400x40mm is over £100. Would need it twice for top and bottom sections. That is also huge wastage. SLA is likely better option, but I don't know price of large enough printers.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
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Re: STFM case remake

Post by rpineau » Sun Dec 10, 2017 9:28 pm

"400x400x40mm" Acrylic ?
I can find 508 x 812.8 x 2.4 mm acrylic sheet for $19 ..
you don't want 40mm thick acrylic, we're not drilling into it with a CNC to make the case, only cutting the walls of the case to assemble them like the Raspberry Pi case example I pointed to ( https://www.2printbeta.de/images/raspi-box-web.jpg ).

Rodolphe

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Re: STFM case remake

Post by exxos » Sun Dec 10, 2017 9:34 pm

A "kit" form case would be a much cheaper option yes, but I'm talking of total accurate clone of the case. If people wanted a kit type case, then they likely could do it themselves.

Though if a new case was being done, I would design it to fit my new motherboard layout.. but in that respect, I would just use mini atx factor and use a PC case.
4MB STFM 1.44 FD- VELOCE+ 020 STE - 4MB STE 32MHz - STFM 16MHz - STM - MEGA ST - Falcon 030 CT60 - Atari 2600 - Atari 7800 - Gigafile - SD Floppy Emulator - PeST - HxC - CosmosEx - Ultrasatan - various clutter

https://www.exxoshost.co.uk/atari/ All my hardware guides - mods - games - STOS
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Re: STFM case remake

Post by rpineau » Sun Dec 10, 2017 9:41 pm

@Maeke, yes the diy route is probably the cheapest one.
To cut 2 to 3mm acrylic you need a CO2 laser with about 40W of power.
Also as we're talking about thin sheet of wood or acrylic, a CNC can also be used to cut the parts, cheaper than a laser cuter and less dangerous (think about fire, laser reflecting to your eyes, ... )
Rodolphe

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Re: STFM case remake

Post by rpineau » Sun Dec 10, 2017 9:46 pm

exxos wrote:
Sun Dec 10, 2017 9:34 pm
A "kit" form case would be a much cheaper option yes, but I'm talking of total accurate clone of the case. If people wanted a kit type case, then they could do it themselves.
So you want to take a block of "plastic" and CNC it to the exact STFM/STE case specs ?
I'm not against it but I think the reason most of us want new case is because we can't fit everything we want in the current one :)
Also as the STF case (bottom and top) are not 100% flat, this would be fairly complicated to do with a CNC and would require multi-axis CNC to do a top/bottom case with its sides (and back panel) and then flip it over to do the other side.

It's all a matter of cost and laser/CNC cut acrylic/wood would give us the option to make new cases for STFM/STE/MSTE/TT to the dimension we want to add cards and what not in them.
So may be these are two different projects..

Rodolphe

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