Monday, August 31, 2015

No Strings on Me!

Recently I am working on making some changes on an existing family and notice there is a string of parameter that is "stuck"

For some reason, this parameter "Rough Width" in the family cannot be deleted. I have seen this in the past and one of the reasons has to do with the family has been upgraded year after year.

Question is "How do we get rid of this parameter?"

First, add a new reference plane on the side like the image.

Then, select the parameter and choose "Edit Witness Lines" from the option.

Have the dimension string snapped to the new reference plane, then select the reference to remove from the original location.

Once this is done, go ahead and delete the ref. plane. Without the ref. plane, the dimension string will be deleted.

This little trick can work on pre-existing parameter from the family template such as casework, baluster and window (wall hosted) family.


  1. Tried it on Width dimension in AutoDesk Door template and didn't work. Still can't delete the dimension string.
    It is not a big deal, usually I just set the label to none or move the witness lines label it with another parameter.

  2. Hi Antony,

    I just did the same test using Door template (both 2015 & 2016 version and both imperial as well as metric) In any case, I am able to delete the Width parameter following this trick. What's interesting is Width parameter was not even gray out in the imperial template so I am able to delete the parameter directly. On the other hand, Width parameter from Metric template was (locked) gray out.