Extend or Untrim Feature in Solidworks

Reduce Overhead & Improve Efficiency using the Extend & Untrim Feature in SolidWorks

As a user, I often ask what little things can I do on a daily basis to improve short and long-term goals? Let’s list them out first to find helpful ways to meet the objectives:

  • > Get this project complete.
  • > Move onto the next project.
  • > Reduce overhead (SolidWorks documents).
  • > Make all things (me, my team) more efficient.

Untrim pic 1

1) Extend -> Surface

Little things make a huge difference in the end as far as your calculation time. Let’s look at the difference between 2 commands with 2 different algorithms – 1) surface extend and 2) surface untrim (see below).

Without getting too specific as to the intimate details, I like the untrim command if I can get it. What’s not to like here? Multiple bodies can be selected there by reducing clicks. Percentage based, I like that.  The other thing is the performance. Better than a 75% faster rebuild on this small part for less work!  So, if you take a part that has 400 features in it and we can reduce the overhead of rebuilding it by 75% on 1 part, what is this going to do for us when we get a whole group of these parts together in an assembly?

Reduce overhead and improve efficiency. Little things have a cumulative effect over the long haul.

Be a Maker.


Untrim pic 2

2) Surface -> Untrim



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