I tried that in the model too. It's just hard to place everything really, It may look simple in the end, but to get there
It would make my unit much bigger and heavier. They're small together, but it's hard to put a big block of valves anywhere in the system and still be within the reasonable size. I'm now trying some miniature valves that would ideally mount directly onto the cylinder, but they flow too slow and have really bad mounting points. The manufactures is designing new valves that have higher flow (100+ l/min) so hopefully I will be able to make it smaller.
Also, these islands are also more expensive than regular piping, not to mention festo valves
If you have any info on where to get miniature valves that flow more than 100 l/min and are reasonably priced, I'd be more than happy to check them out. Or and idea with different valve layout.. I'm still throwing everything together.