NOTE! Upgraded Bed Mounts. Stiffer than previous mounts. May 1 2015 Based on the original Wallace design by whosawhatsis. With all the Upgrades I've added to mine. Rack & Pinion X & Y drives. Spool Hook and Motor stabalizer ends. Filament guide. Y-Linerbearings removed from motor blocks End Stop switch mounts. And new here, Printable Bed! No board nessessary! Onlything not included here is the Extruder. I recomend thing:40002 ;) Current print area: 200x180x200 When I get the longer Y Rods: 200x200x200. That will come with new Bed Rear parts. BOM and Build instructions started at : http://gkprotoforms.ca in How-To section.I use 20% Hex fill for all parts. Racks need to be 45 on a 200mm bed, so you should change fill direction to 0 for those. Assembly isntructions here: http://gkprotoforms.ca How-to -> Wallace G1Build Instructions.