corner30

## Summary ► Design For: Corner mounting bracket for 3030 extrusion. ► Created by David Malawey, 2026.06 ► use M8 x 12mm fastener * 2 ► designed for extrusion with chamfered corners, AutomationDirect design ► 3d printable design (recommended ABS 30% infill) ## Description: This corner bracket mounts aluminum extrusions of 30mm or 3030 at 90 degrees. The design is open source, installs with two M8 fasteners, and requires the extrusions to be tapped with M8 threads. This part is printable with no supports, has less strength than common cast aluminum corner brackets, but it is designed for improved aesthetics. If strength is desired, you can include aluminum brackets at the interior corner with this bracket at the exterior corner of a joint. All my models are free and open source. Explore the feature tree to examine how it is designed and easily make changes to suit your needs. Visit https://qr.net/openlabproject for more design resources!