LED Aluminum Profile Corner/Caps - U Shape

Do you use aluminum profiles to insert your LED strips? I do, and I have confirmed that the pieces to join corners are somewhat expensive, so I have redesigned and compiled the most common ones so that we can print them easily.     Each type is separated on a plate: Corner (Opened) Corner Curved (Opened) Splice (Opened) End Cap (Universal) End Cap with Hole (Universal) Corner Flip IN Corner OUT Corner OUT (Curved) Cover Diffuser    The difference between Type A and B is the design of the exterior of the profile. Take a good look at it and choose the one that is closest since each manufacturer makes small variations: