Vacuum table for CNC prototype

I made this to work with my X-carve because I was tired of clamping everything down. This is just the first version if you have any idea's that can make this any better please let me know. I am getting ready to print it now I will post pics as soon as it is done and I will give more info. So the first one I printed wasn't too bad but it does need improvements. The viens inside are not touching on the bottom I am gonna look into fixing that. I just put a revised version on here gonna print it now. I also just added a longer version let me know what you guys think.