Cage Edit Question: Partial Deformation

I have a model of a metal spring battery clip shown in the relaxed position. I want to deform the back side spring half so that the final model will be expanded as it it is pressed in place over a 0.065" thick rectangular block so that the binding tab rests against the block as it would be when pressed on.

I only want to change the back half of the clip in the x plane. I would prefer to be able to leave the exact shape of the selected part to remain the same and only cause deformation at the top of the selection box.

I can create a box around the spring part that does not encompass the section I do not want to deform. However, when I move selected points, the parts of the model outside of the box changes as I move points associated with the box I created. (Before/After pics & 3dm attached)

I am missing something simple here in my understanding of CageEdit.

Can anyone suggest what I should try to accomplish this?

Best regards,
B

SpringClip.3dm (942.0 KB)

I think that’s what the Local setting in cageedit is for. Did you look at the help for cageedit?

https://docs.mcneel.com/rhino/8/help/en-us/index.htm#commands/cageedit.htm?Highlight=cageedit

Hi Peter,

Thank you for the response!

I had been using local, but the problem was I did not have the falloff set small enough and the deformation was reaching out too far. Getting that down to ten thou cleared that right up.

What I need to do is rotate the cage about a point. Even with just a few handles, all the handles move in a x-y proportional, translational unison with the one I choose to move.

After some study, I don’t see a way to set a center of rotation and drag the cage handles around it.

I am a CageEdit noob. Do you see another approach that I might use to create a single axis cage rotation?

Best regards,
B

I’m not totally sure what you want this to look like when transformed, but if you are hoping to rotate the back part of the clip around the round area, then maybe cage edit isn’t the right tool. Maybe just split your part into 2 and rotate the back however you’d like. They won’t match up, so you might have to cut away a little more and blend them back together.

That’s what I ended up doing.
Thank you!
B