SidFX user port cover
thingiverse
I wanted to add SidFX switches, audio out and ROM switcher switch to my Commodore 64 without making a hole in it. This cover goes directly into the user port since I don't need it for anything else. The cover attaches below the motherboard and also covers the user port pins so the switches won't cause any shorts. This cover fits only on the breadbin model. I'll upload the C-version as soon as it's done.
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