General PCB size?

[FrancoB]

I'm going to make a two tier platform for my Net City to hold my PC components on the bottom shelf and Jamma/PCB boards on the top one. I'm thinking 10mm thick polished white acrylic tiers, 30mm diameter clear acrylic tube corner columns and 20mm polished stainless steel shafts inside the columns

I figure I can get all of the PC components on a tier about 400x300mm. The top tier would be the same size. Am I likely to get any Jamma or other PCBs larger than that in the future? My biggest boards at the moment are my CPS1 boards whih are about 300x260mm

[cools]

400x300 should accomodate 90% of JAMMA stuff.

I'm guessing you'll be using static dissipative, grounded acrylic?

[FrancoB]

Cheers cools.

I'll just be using standard acrylic but they will be mounted on PCB feet and I will have an earthing point near by to drain any static before handling boards. I could ground the acrylic too if you think it would help?

[cools]

It'd probably be fine, but yeah I'd ground the acrylic if I was doing it myself.

[FrancoB]

Cheers buddy. I was going to ground one of the stainless legs so that should ground the acrylic too.

[cools]

It's the surface you want to be grounding - acrylic isn't conductive - if there's good contact between the posts and the shelf that should be enough.

[emphatic]

My largest PCBs are Sky Shark (bootleg) and Rampage World Tour. The first is hard to fit inside my EGRET II really. But the Rampage World Tour does have the JAMMA edge connector at a really awkward position, so that's even harder to fit. If you plan on running games older than 1990ish, I'd think about this long and hard.