80/20 Inc., 40-4080-Lite-Black, 40 Series 40mm x 80mm x 610mm: Amazon.com: Industrial & Scientific
4080 Aluminum Profile Extrusion 8mm T-slot Eu Standard Anodized Linear Rail 100-1000mm 4080w2 For Cnc 3d Printer Xyz Axis Parts - Corner Brackets - AliExpress
Amazon.com: 80/20 Inc., 40-4080, 40 Series 40mm x 80mm Extrusion x 610mm : Industrial & Scientific
E40-4080-10S-C - 40mm x 80mm SLOT 10 MATCHES THE 45 SERIES SLOT 10(Cut To Length)