2040 extruded aluminium
thingiverse
This is 2020 and 2040 extruded "aluminum" The center hole is 0.25 inches, which is large enough for a steel rod to be inserted to give it strength. You can use this, as long as its reinforced, to make a hypercube corexy printer or for other printers. if using for a bed slinger(i3) type of printer, do not use on bed sizes bigger than 250x250x250. It will not be able to handle the increasing mass of the bed, but if using a core xy system, it should handle. BUT USE AT OWN RISK! the 20x20x200 ext alm, and 20x20 ext al small are all 5mm widths for v slots. The other 20x20 and 2040 are 6.25mm widths
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