Custom USB-C powered 8"display for the Apple IIc with STL files and build plan

JDW

JDW

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It would be wrong for changes to be made only for me, so I agree there needs to be feedback from other Apple IIc owners.
Maybe @Javmast3r would like to chime in?

Before any changes are made, it might be best for @ArjenCNX to test the compact A2VI adapter on his machine first (only if he wants to, of course). The purpose to test that adapter on his setup is twofold:

1. To see if it improves vertical centering and offers a larger displayed image on his 8" Eyoyo (just as it does on my 10" knock-off Eyoyo), and
2. To see if that compact A2DVI adapter would fit inside a modded version of his plastic enclosure.
 
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wottle

wottle

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ArjenCNX said:
I'm willing to make the needed modifications to the existing design, if you can reach some consensus on what would be best, and provide that to me, then i can adjust the current design if needed. to power the computer from the single USB-C plug should not be an issue either.
Click to expand...
I’ve ordered your existing 3d parts from JLCPCB in their white resin. I’m planning on using the 8” screen I found on Amazon that appears to be the correct model. I plan on trying to set up my UsB C trigger board to request 15v and then try to find a spot to drop in a buck converted to drop the voltage to 12v for the LCD. So one 15v line will run out the case to a pigtail cable that will power the IIc, then a second 15v line that will run to the buck converter with 12v out to the LCD. I’ll let you know how it goes and see if any changes are even necessary. I don’t mind putting a new hole in the case for a wire. The question will be if there’s room for that buck converter. I’ll let you know how it goes.
Thanks again for doing this.

One other question: did you consider running it from the video out port? I have an adapter I made that plugs into an aftermarket LCD and if I’m remembering correctly, I was able to pull 12v off that port, along with the composite video signal so I just had to plug one cable in to get everything I needed. I’ll take a look at what I built when I get home tonight.

EDIT: it looks like the 12v out on the monitor port only does 300mA and the new monitor wants 1000mA. So I’ll go with my original plan of powering both off USB-C and having a pigtail cable to plug into the port for powering the IIc.
 
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ArjenCNX

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wottle said:
I’ve ordered your existing 3d parts from JLCPCB in their white resin. I’m planning on using the 8” screen I found on Amazon that appears to be the correct model. I plan on trying to set up my UsB C trigger board to request 15v and then try to find a spot to drop in a buck converted to drop the voltage to 12v for the LCD. So one 15v line will run out the case to a pigtail cable that will power the IIc, then a second 15v line that will run to the buck converter with 12v out to the LCD. I’ll let you know how it goes and see if any changes are even necessary. I don’t mind putting a new hole in the case for a wire. The question will be if there’s room for that buck converter. I’ll let you know how it goes.
Thanks again for doing this.

One other question: did you consider running it from the video out port? I have an adapter I made that plugs into an aftermarket LCD and if I’m remembering correctly, I was able to pull 12v off that port, along with the composite video signal so I just had to plug one cable in to get everything I needed. I’ll take a look at what I built when I get home tonight.

EDIT: it looks like the 12v out on the monitor port only does 300mA and the new monitor wants 1000mA. So I’ll go with my original plan of powering both off USB-C and having a pigtail cable to plug into the port for powering the IIc.
Click to expand...
Really cool sir! do share the pictures, im curious how nice it will look in resin print! SLA could also be nice i think, but there is not much choice for colour. (would work well in black though)

for the monitor it takes about 350mA at max brightness, so less then 1A, but more then 300mA.

I run the monitor straight off the composite output in to the BNC pad of the monitor PCB through a small coaxial cable. for the buck converter, you could surely fit it inside the monitor, usually they would be too thick to fit in the base, also best get something more then 90% efficient.

also, how to place the inserts in resin? i have not tried that before, it may have to be glued in
 
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