Expandable Steel Sheet Holder - BambuLab with header

I wanted to extend Whity's amazing model to allow for the larger sheets used on the Bambu Lab X1C and P1P so I remodelled the original to work.

Also included are files to create header pieces that can be screwed securely to a shelf before screwing the sheet supports to it. This make mounting MUCH easier in my opinion. There are two versions - one with spaces for Heat-set Inserts and one for trapped M3 nuts as with the rest of the design.