Howdy all, took the invite to come here, so I'll share with you my mod of a Casio cash register. Found this in a pile of trash and it was gutted of it's circuit boards and printing mechs. Still had the displays.
To start this project I'm using a Asus A7V133 mobo for mockup, but will be using a A7V233 when I get it back from my brother. I first had to make sure there was room for the mobo under the hood of the unit. Then I had to mark out the mounting holes and drill and tap for the standoffs.
Once I got that done I placed the hood on and found that it was laying on top of items mounted on the mobo. So I had to remove plastic to clear the items on the mobo.
Then I had to cut a slot into the base of the register for the PCI cards to slip into. This was done by mounting the mobo and marking a line down the side of the mobo and using a rotary to w/flex shaft (eye protection here) to cut a slot into the base.
I'll get back later to get you caught up to where I'm at with this project. Let me know what you think and please any suggestion that you might have to help bring this beast to life.