Midway Vegas Arcade PCB Case

This is a case for the Midway Vegas series of arcade systems (ex: Gauntlet Legends, Gauntlet Dark Legacy, NFL Blitz 2000 Gold, NBA Showtime, etc) that allows you to run the PCB without the original mounting board from the arcade cabinet, without worrying about the pcb flexing at the PCI connectors. This case supports loading games via a Compact Flash adapter.  Since different games have differing requirements for CPU boards and video cards, both Vegas and Durango CPU boards, as well as both video cards (Voodoo Banshee, Voodoo 2) are supported. Four fans mounts are provided on the case to allow appropriate cooling for the board.

Swapping games requires swapping the security chip, game rom, and CF card -- swapping the security chip and game rom would require a longer chip removal tool than I have, but may be possible.  Swapping video cards with the fans installed required slight loosening of the GPU cover screws to get clearance to install/remove the Voodoo Banshee series card, but installation of the Voodoo 2 card can be done with the case fully installed and secured.

Update: v29 added combined bodies and STL files for the base and cover bridges for those with large format printers, for those with normal size printers those STL files can be ignored

When printing this I used PLA+ with the following overrides to the defaults in Cura:

• Top Layers: 5
• Bottom Layers: 5
• Infill Density: 60

Depending on your material the above may or may not be needed, I found default settings with PLA+ didn't provide the rigidity that I required.

Hardware needed to build the case:

8mm M3 screws
16mm M3 screws
20mm M3 screws
35mm M3 screws (40mm may work better, but at least 35mm)
M3 aluminum washers
M3 aluminum spacers (these are technically washers, but when placed upside down against the case or pcb they act as spacers)
M3 15mm standoff
M3 50mm standoff
M3 70mm standoff
M3 12x8x7mm rubber feet
Noctua NF-A9 FLX (3-pin, 12V) x2
Noctua NF-A4x10 FLX (3-pin, 12V) x2
4 pin Molex, 5.25 inch Female to Female cable (12")
4 pin Molex, 5.25 inch Male to 2 Female splitter cable
4 pin Molex, 5.25 inch Fan splitter cable
Cable ties, if you want to tidy up the wiring, I used ladder ties

M3 screws: https://www.aliexpress.us/item/2251832624537980.html?spm=a2g0o.order_list.order_list_main.56.150f1802zjyl5q&gatewayAdapt=glo2usa
Standoffs: https://www.aliexpress.us/item/2255799966485073.html?spm=a2g0o.order_list.order_list_main.6.150f1802zjyl5q&gatewayAdapt=glo2usa
Washers:   https://www.aliexpress.us/item/3256802497417613.html?spm=a2g0o.order_list.order_list_main.14.150f1802zjyl5q&gatewayAdapt=glo2usa
Spacers:   https://www.aliexpress.us/item/2255800098271034.html?spm=a2g0o.order_detail.order_detail_item.8.2627f19clNFOHS&gatewayAdapt=glo2usa
Feet:      https://www.aliexpress.us/item/3256804522604994.html?spm=a2g0o.order_list.order_list_main.68.21ef18026Z5rkt&gatewayAdapt=glo2usa
Noctua NF-A9 FLX:    https://a.co/d/3oAES6U
Noctua NF-A4x10 FLX: https://a.co/d/9PFvNMu
4 pin Molex F-to-F:  https://a.co/d/iJIvdvQ
4 pin M-to-2F:       https://a.co/d/87n0XMG
4 pin M-to-4fans:    https://a.co/d/j8gGWT4
Cable ties:          https://a.co/d/4jXBVtc

How to assemble the standoffs/supports (see photos for examples):

6 pcb mount type:
16mm screw (w/washer) > Case bottom > spacer > 15mm standoff > spacer > PCB > 8mm screws (w/washer)

4 through-pcb mount type: 
35mm screw (w/washer) > Case bottom > spacer > 15mm standoff > spacer > PCB > spacer > 50mm standoff > spacer > Case top > 16mm screw (w/washer)

3 through-pcb mount type (foot edition): 
35mm screw (w/rubber foot) > Case bottom > spacer > 15mm standoff > spacer > PCB > spacer > 50mm standoff > spacer > Case top > 16mm screw (w/washer)

4 cast mount type: 
20mm screw (w/washer) > Case bottom > spacer > 70mm standoff > spacer > Case top > 16mm screw (w/washer)

5 cast mount type (foot edition): 
20mm screw (w/rubber foot) > Case bottom > spacer > 70mm standoff > spacer > Case top > 16mm screw (w/washer)

8 top fan mounts
35mm screw (w/washer) > Case top > Noctua fan > nut

4 side fan mounts
Screw included with Noctua fan > Side fan mount of case > Noctua fan