Thanks for all your feedbacks. @o_lampe Sending them back is not an option since this would cost at least as much as the corners... There is a lot of Ultibot D300VS users which use the exact same corners but I didn't see a single complain about them. That's why I wanted to ask here if I was the only one having a bad experience with them... I still used these corners to build my delta since I hby jarjar - Delta Machines
Hi there, So I purchased some of these popular 2040 metal corners from RobotDigg to build my delta: https://www.robotdigg.com/product/555/2040-or-3030-Alu-Vertex-for-Kossel-XXL-or-XXXL And I was really surprised to see how terrible they are... Tolerances are all over the place. - Top and bottom surfaces aren't even remotely parallel. - Angles are not 120°. - Bearing holes are oversized and theby jarjar - Delta Machines