Frankenbot update. Taking forever.
The length of the supplied rods, less the length of (the supplied bearings plus printed mounting brackets) is just over 250mm. So…
I’m looking for a cheap source of 250x250mm bed material. I found an ebay distributor of PEI in 10x10" (ie: 250x250). But would like something rigid, maybe heated to mount it to. My ebay searching finds 300x300, lots of 200x200, and even some 300x200. But the 250x250 space is somewhat empty.