These were parts from a drawing that I had made. In answer to your question about imported parts: I started this drawing by importing a bunch of parts from AutoDesk Inventor. Please be sure to include what version of the PTC product you are using so another community member knowledgeable about your version may be able to assist. You may also use 'Start a topic' button to ask a new question. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. This thread is inactive and closed by the PTC Community Management Team. Do other users see this problem with Creo Elements / Direct Modeling Express? Is there anything that can be done about this? I used to use AutoCAD and I don't remember this problem with that program (or at least it was less common, to the best of my recollection).

That works but I am spending much time correcting these types of things. I will sometimes use the 'mate' and/or 'align' functions to make the corrections. Parts that I thought had been put in place with faces at right angles to other parts, turn out later, when I look closely, to not really be at right angles. Parts that I thought I had snapped properly into place when I later look closely are not really in the right place. But I find that I am spending quite a bit of time repeatedly fixing things that seem out of place or not quite in the right position. I am using Creo Elements / Direct Modeling Express.

Creo direct modeling express