Cabinet Drawer Rail Bracket

These brackets kept breaking that hold the drawer rails for our kitchen cabinets (see pic of original bracket). Decided to recreate it as best I could. I made the walls a little thicker so that they hopefully hold up a little better. I printed in PLA with 100% infill. You can play around with the resolution but I used .10mm.

Update 03/01/2016 - Printed one of these out last night at .10mm\100% infill. Fit was tight but it went on the rail. What I do is take the rail off, get the bracket