STFM case remake

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Icky
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Re: STFM case remake

Post by Icky » Sat Jul 13, 2019 12:48 pm

I printed out the front section before finishing off my changes as I had some suspicions there were a lot more issues than I was seeing in CAD and wanted to put this up against a rear case.

So I have found yet more problems such as angles, posts, supports and spacing and many more. This is adding to the list of work to do on these files so its going to take a lot longer to sort out.

Some examples of this are the mouse port area. The picture below shows how the port is not rounded on some of the upright sections (GREEN arrows) and the most obvious issue is the area where the cables go under and into the port area (ORANGE arrows). Look on the right (real case) and you will see the flat part angles up towards the top lip of the port. On the left you can see the cad files were just drawn straight across so it flat and stops more or less in the middle of the lip.

So the mouse port area needs a bit of CAD work. None of this is a problem to deal with its just time to work through the issues and fix :)

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Re: STFM case remake

Post by exxos » Sat Jul 13, 2019 2:30 pm

IMHO things like rounded edges and angles on the inside of the case don't really matter that much as long as the motherboard fits etc the area is there and looks pretty close to what its supposed to be anyway. So I don't think these are huge issues. We can always fix them another day if we wanted to anyway. Its what's on the outside which counts ;)
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

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Icky
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Re: STFM case remake

Post by Icky » Sat Jul 13, 2019 3:18 pm

exxos wrote:
Sat Jul 13, 2019 2:30 pm
IMHO things like rounded edges and angles on the inside of the case don't really matter that much as long as the motherboard fits etc the area is there and looks pretty close to what its supposed to be anyway. So I don't think these are huge issues. We can always fix them another day if we wanted to anyway. Its what's on the outside which counts ;)
True - This is a new case anyway as if to ever get a perfect match is going to be impossible with tolerances etc.

As long as the case looks the part and as you say everything fits in and functions we should be in a good place.

It's never going to be able to fit with an existing case part, such as using one of these case bottoms with a real top as there are going to be differences let alone the colour.

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Re: STFM case remake

Post by Icky » Sat Jul 13, 2019 3:42 pm

I mentioned a couple of posts ago I had printed out the last three 6th's of the sections for the bottom case. These are not in the best shape such as there e is a grill missing on the centre section and other items as I am still working on them but wanted to print out to see other issues I needed to see in the real world and not just in CAD.

Here are some pics of a fully glued together case bottom alongside a real one.

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Re: STFM case remake

Post by PhilC » Sat Jul 13, 2019 4:29 pm

Good work so far Icky!
If it ain't broke, test it to Destruction.

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Re: STFM case remake

Post by exxos » Sat Jul 13, 2019 4:50 pm

Icky wrote:
Sat Jul 13, 2019 3:18 pm
True - This is a new case anyway as if to ever get a perfect match is going to be impossible with tolerances etc.

As long as the case looks the part and as you say everything fits in and functions we should be in a good place.

It's never going to be able to fit with an existing case part, such as using one of these case bottoms with a real top as there are going to be differences let alone the colour.
Indeed. Its a complete new case and should be used as such. Of course there are going to be changes ultimately like removable back panel to fit other motherboards. Though mostly its aimed at the remake boards anyway. Its just a bonus it can also fit existing motherboards. Though even saying that, not all STFM cases are the same anyway.

Awesome progress just the same! We are actually heading towards a complete new super ST, motherboard and 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
https://www.exxoshost.co.uk/atari/last/storenew/ - All my hardware mods for sale - Please help support by making a purchase.

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Re: STFM case remake

Post by DoG » Sat Jul 13, 2019 5:10 pm

Looks really nice!

Since you have been looking and measuring the case for some time now. Maybe you can answer this: What is the hole in the bottom back for? 19cm from the cartridge port and 4cm from the back. Drainage hole? There is a hole in the cardboard and metal screen as well but there is no set screw. I only see a soldering point. It's not plugged on the falcon case but the metal screen covers the hole. I see that you have included it in your prints as well.

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Re: STFM case remake

Post by Icky » Sat Jul 13, 2019 5:23 pm

DoG wrote:
Sat Jul 13, 2019 5:10 pm
Looks really nice!

Since you have been looking and measuring the case for some time now. Maybe you can answer this: What is the hole in the bottom back for? 19cm from the cartridge port and 4cm from the back. Drainage hole? There is a hole in the cardboard and metal screen as well but there is no set screw. I only see a soldering point. It's not plugged on the falcon case but the metal screen covers the hole. I see that you have included it in your prints as well.
I know the hole you mean. My assumption looking at boards and the hole is that it was to allow adjusting the RF modulator from underneath without opening the case. However with different motherboard revisions and modulators the screw wasn't always in the same place. I could be wrong though.

See picture of motherboard with RF modulator screw underneath.

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Re: STFM case remake

Post by DoG » Sat Jul 13, 2019 5:30 pm

Ah. Of course. I don't seem to have one of these board with modulator to look at right now. I thought it had something to do with the screen since the monitor port is very close.

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Re: STFM case remake

Post by Icky » Mon Jul 15, 2019 11:17 pm

The Icky 3D printer has been going all weekend on more sections of the remake case.

Have noticed the keyboard angle is 2 degrees difference. Spot the digital protractor between the case and floppy section. I was trying to measure the angle but could not find a protractor in the house, used to have one at school but that was eons ago. Got hold of this digital one and it quite a good measuring device.

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Grill section was difficult to print some of the sections sprung loose whilst printing

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Function keys angle is not quite right needs adjusting to allow keys to fit

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It's starting to take shape but there is a long way to go.

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