System 32 SegaSonic DIY

[piroxilin]

Hand made IO and control for SegaSonic.

Reversed IO :

Wires :

Control :

On GBX Summer Party 2018 in Moskow.

 

[XtraSmiley]

This is awesome. I’d like something like this for Sonic and Rampart.

 

[piroxilin]

All control has a lot of weight.
From 7 trackballs i selected 3 good sets - erased axes.
Then i replaced all bearings.
With length of 80cm - there is not much room for three players.
Here the most emphasis is on the reverse-engineered controller board for trackballs.
I made them from two photos from ebay

 

[twistedsymphony]

I'm interested in that enclosure you're using for the PCB.

 

[piroxilin]

Photoshop

 

[piroxilin]

Also i have reversed 4 player io board.

 

[piroxilin]

I'm interested in that enclosure you're using for the PCB.

It is modded original case from JP :

 

[stj]

good, now put some stickers on those eproms.

 

[piroxilin]

These eproms were the same for golden axe and 4 player DIY IO board...
So they were UV unprotected.

 

[stj]

???

 

[piroxilin]

I had one EPROMs set.
I erased them and wrote other games on them.
Therefore, my chips do not have "stickers".

 

[Blackfish]

Yeah, I think the suggestion is to cover the windows up again to prevent them from erasing again.

 

[Mitsurugi-w]

I think what he means is he does not have the windows covered on purpose because he changes the game sometimes using the same roms.

 

[stj]

exactly, cover the windows - specially as you have a translucent case over them.

 

[Mitsurugi-w]

I still think you are missing his point. He doesn't WANT to cover them because he erases and rewrites them often.

 

[stj]

then he should bank-switch some bigger roms.

 

[Mitsurugi-w]

then he should bank-switch some bigger roms.

Perhsps he does not want to. His hardware, his choice.

 

[piroxilin]

At the last exhibition, some people offered me to seal them with colored stickers with game characters
But this is only an aesthetic gesture, not a practical one ...
It is possible that I will do so, especially since I already bought EPROMs for other kits ...
The more so that Sonic probably will remain the only cartridge on this platform since it was in greatest demand among other arcades.

 

[stj]

if you want to have the chips visible, you could use a square of kapton tape - i have seen that before.
i think it blocks u.v.

 

[piroxilin]

I will use self-adhesive paper for color printing.