AM8 Y Rail Mounts Strengthened

After about 6 months of heavy use one of the Y rail mounts on my AM8 cracked. I am not sure if it was due to over tightening, constant vibration of the unit running, or if I just hit at one point. Anyway, to be ensure this doesn't happen again I beefed up the mounts. They are also rounded over to get rid of the sharp corners. I have previously rounded over all the AM8 parts and beefed up others. You can find them here: https://www.thingiverse.com/thing:2491282