I am extending the bed of my TronXY X3 FDM RepRap printer.
I am extending the bed from 220 mm x 220 mm to 220 mm x 300 mm. For now, I will keep the existing bed and add and aluminum sheet on top. That leaves 40mm on front and back of the original bed.
Right now I only plan on running PLA; but, I do plan on heating the bed.
How thick does the aluminum sheet need to be?