326x326mm bed support for J-Bot Core-XY?

thingiverse

I can't support a 326x326mm bed with the existing models because I don't have enough space for the holes in the corners. You would need both these mirrored things for the corner holes. I use the JonnayLin support for the 3rd hole, but for a 4-hole bed you would need 2 pairs of these ones. The design is meant for use with springs with a 10mm diameter and spacers like on http://www.thingiverse.com/make:323057 I did some countersinking because I like washers to spread the burden. The space-problem would not exist with the D-bot, I suppose, although... this 6mm plate alone weighs some 1.7kg. I am still busy building the frame, so I'm not sure, but I don't see any other problems rising from the size of this plate. Edit: to decrease the chance of bottoming out of hammerhead nuts I made some room around the 5mm holes at the profile side => V2. Thanks to KDan.