cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
Showing results for 
Search instead for 
Did you mean: 

Insert and Allow Assumptions in Assembly

cordeneaux
1-Newbie

Insert and Allow Assumptions in Assembly

We were recently having a discussion on assembly techniques in Wildfire
related to "insert" versus "aligning axis". I wanted to get some other's
answers/opinions on the following:


Has "insert" always been an option for assembly?
I can't remember "insert" always being an option so I'm in the
habit of aligning 2 axis instead of inserting 2 surfaces. Newer users
prefer insert because it's easier to find surfaces instead of axis. I
always thought that aligning axis would be more robust (less likely to
fail during changes) and that "insert" was something added because
Solidworks had it.

Is "insert" or "aligning axis" faster during regens?

When was "allow assumptions" added and does it affect regen speed relative
to a 100% constrained part?

Thanks for any help.
Chris Ordeneaux
This thread is inactive and closed by the PTC Community Management Team. If you would like to provide a reply and re-open this thread, please notify the moderator and reference the thread. You may also use "Start a topic" button to ask a new question. 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.
1 REPLY 1

Insert has been around since I started on pro at rev 15. It's not new.

There are a few specific instances where insert or align are better (from my
experience)

1.If you are assembling a part using 2 holes and the cooresponding holes
aren't exactly the same dimension apart (rounding,fractional preference,etc)
align works and usually orients the part correctly. Insert leaves the
component as partial or invalid.

2. If you use insert as the first constraint, a future constraint may allow
for the align or mate angle option.

3. Slots, well, you have to have something to assemble to, so I usually add
an axis or an axis pt in the sketch so I use align.

I have done no speed test, so I'm at a loss there.

I suspect this will be sort of like shown vs. created dimensions. You take
sides and you defend your side to death. I don't remember a case where I
have concluded a constraint failed because it was align vs. oriented or
oriented vs. aligned. Just guessing, I would think the axis is more stable,
but in practice I usually use insert. Although I remember a time when I was
more likely to use align, but now the way layers work, you can't select an
axis unless the layer is turned on, I lean toward insert.

Good luck in your quest,

Steve


Announcements