Long time follower, first time poster. I am wanting to scale my CNC up to 4'x8' just as many others are and some have managed to do. I haven't been able to find an affordable solution for linear rail that will provide enough rigidity to handle heavy cuts. I designed a custom extrusion that is essentially a larger openbuilds rail. Would anyone ender be interested in ordering a couple meters for a heavy duty machine? I have a couple concepts I have been kicking around and wanted some feedback. Going from the current 5-series (M5 hardware) profiles to 8-series (M8 hardware) I would also need to find larger v-wheels and supporting hardware. I'd like to hear if anyone has experienced similar issues when trying to scale up. What do current solutions cost per inch?