I'm looking at this piece, and becuase I know what it's supposed to look like, I can tell you it's really messed up. There seem to be steps in the side wall that shouldn't be there (Skips in the first image), there's holes in the motor mount that shouldn't be there, it just looks wrong.
I wonder if this is some kind of slicing error, or whether the printer is skipping or jumping around and not following the paths. Here are some pics of the model from the same angles as the photos posted by the OP.

You should also try to add support for the arches and the vertical holes

BTW, the vertical part of the motor mount is 2mm thick and with a bit of support should print clean even without cooling.
Post's attachmentsY carraige print problem 001.jpg
Y carraige print problem 001.jpg 119.56 kb, file has never been downloaded.
Y carriage print problem 002.jpg 150.9 kb, file has never been downloaded.
You don't have the permssions to download the attachments of this post.
To print or, 3D print, that is the question...
SD3 printer w/too many mods, Printrbot Simple Maker Ed., FormLabs Form 1+
AnyCubic Photon, Shining 3D EinScan-S & Atlas 3D scanners...
...and too much time on my hands.