Preform 1.5.2: How to delete all supports to start over?

General Discussion
1

Once auto-support generation is done, is there a way in preform to delete all supports to essentially start over?

Or is there a way to multi-select many supports at a time to delete in clusters?

Manually deleting extra supports (especially after auto-generation creates a hugely dense mesh of supports) can take 5-10 minutes.

For context, I am deleting auto-generated supports and observing the change (if any) in red-shading to determine how critical those supports were to the structure. Many auto-generated supports seem unnecessary, based on this type of analysis. This seems especially true for internal supports. Adding supports completely manually (or even just internal supports) seems to be a fairly fast process and can eliminate quite a bit of extra supports. This assumes that the redshading is relatively correct.

Any advice on this approach, and if there are short cuts that I am missing?

Thank you!

Jeff

PS here are some pics showing no supports, manual supports, auto-supports. Note the volume difference is 3X (it would be great to know if the manual approach is valid… the cost savings seems worthwhile)

2

To remove all the supports you can go to the Orientation tab and tilt it back and forth 1 degree. This will remove all the supports. You might want to play with the flat-spacing setting or slope factor setting under Advanced. That does look pretty crazy.