Making PC Engine HuCards

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mourix:
Loving the dedication. This should be the point where the rabbit hole makes you get a 3D printer to finish up these hucards :dunno

PL1:

--- Quote from: mourix on November 30, 2023, 02:28:08 pm ---Loving the dedication. This should be the point where the rabbit hole makes you get a 3D printer to finish up these hucards :dunno

--- End quote ---
He'll probably just hit me up for that part. :lol

Not sure how well it will work since 2mm (overall card thickness) minus the PCB thickness leaves very little wiggle room.
https://consolemods.org/wiki/Dimensions_for_Game_Cartridges

Scott

pbj:
The first batch of repro pcbs arrives tomorrow. They’re 1.6mm. Apparently you’re supposed to bulk them up with something to get them to a good thickness. I’ve also read that 1.6mm will probably work fine as is. We will see. You can buy really cheap plastic cards the size of playing cards. Glue and trim might do it.

The second batch is a 1.2mm eprom board and then a 1.2mm blank board with a hole for the eprom legs in it.

Going by the rom set I downloaded, there’s less than 30 games over 512Kb. The 512Kb chips are around $0.50 each. The 1MB about $1.10 each.

I’ve also read that PC Engine eprom bootlegs were quite common back in the day.

Anyway, I did pick up some cheap sleeves for my loose HuCards and possibly to mangle for my bootlegs.

:cheers:

pbj:
So my two different boards showed up today. I only had round hole sockets which I’ve learned are a PITA with 35 year old chips, but I couldn’t resist.

This one is a thin pcb that you solder the chip to and another thin pcb you glue to the bottom.

And here we go…

Works great, but uses 27C800 chips. Less than 30 games need a chip that big and they’re three times as expensive as 27C040 which accommodate the rest of the library.

Here’s the other design. This one has jumpers but it also has sharp edges on the corners for no discernible reason. He’s got a better revision but hasn’t released the files that I can find.

This one you have to bulk up on the bottom to get the card edge against the connector. I used four stacked strips of electrical tape for now.

I still haven’t figured out how to modify a US rom to work on these boards… but… soon..

firedance:
Great work as always 8)

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