topic Sketch is stretching with ref planes without any constraints in Revit Architecture Forum

Sketch is stretching with ref planes without any constraints

denisyukJ — Thu, 21 Jul 2022 15:44:41 GMT

Hello,

I have an extruded element placed just between two non-reference planes without any constraints. But when I move one of those planes sketch begins stratching with them. I've tried to pin sketch, but it doesn't help.

Re: Sketch is stretching with ref planes without any constraints

EATREVITPOOPCAD — Thu, 21 Jul 2022 15:56:03 GMT

Try checking the Disjoin checkbox when doing the move command?

Re: Sketch is stretching with ref planes without any constraints

barthbradley — Thu, 21 Jul 2022 16:12:12 GMT

Edit the Sketch and remove whatever is constraining it to those reference planes. But if that works, what's the point of the Ref Planes? Do you even need them?

....

@denisyukJ wrote:

I have an extruded element placed just between two non-reference planes without any constraints.

Something is constraining the element that is stretching when the RPs are moved. Post the file here and we'll tell you what is and where it's at.

Re: Sketch is stretching with ref planes without any constraints

denisyukJ — Thu, 21 Jul 2022 16:28:51 GMT

File in attached. Revit 21.

I can not delete those ref planes because they control a geometry in second type, which is deleted for this sample file.

Re: Sketch is stretching with ref planes without any constraints

barthbradley — Thu, 21 Jul 2022 16:44:52 GMT

It does not act that way here. You sure you posted the right family?

Re: Sketch is stretching with ref planes without any constraints

ToanDN — Thu, 21 Jul 2022 16:35:24 GMT

Reveal constraints and/or turn ON temporary dimensions and you will see why.

Re: Sketch is stretching with ref planes without any constraints

barthbradley — Thu, 21 Jul 2022 17:07:52 GMT

AH! I was able to replicate! Geometry seems to have a mind of it's own. I have no clue what's going on. It's fascinating though.

Following...

Re: Sketch is stretching with ref planes without any constraints

ToanDN — Thu, 21 Jul 2022 17:29:38 GMT

See screencast for how to fix it. 2022 file attached.

Re: Sketch is stretching with ref planes without any constraints

denisyukJ — Fri, 22 Jul 2022 06:27:39 GMT

Thank you, @ToanDN

It looks like a solution, but I am not sure that understand what exactly I can delete, because temp dimensions are unable to delete. So I've tried to do the same with second vertical element, but hadn't success.

Re: Sketch is stretching with ref planes without any constraints

ToanDN — Fri, 22 Jul 2022 07:03:32 GMT

You can grab all automatic sketch dimensions, delete, and let Revit decide what to delete and what to keep. The ones you can't delete are internal constraints (within the sketch lines), the one you can delete are external constraints (between sketch lines and outside elements such as a ref plane). You need not be worried about deleting the wrong ones because constraints you intend to keep should be placed by permanent dimensions, not automatic sketch ones.

Re: Sketch is stretching with ref planes without any constraints

denisyukJ — Fri, 22 Jul 2022 07:19:32 GMT

Can you try to do the same with this element?

Re: Sketch is stretching with ref planes without any constraints

denisyukJ — Fri, 22 Jul 2022 07:22:51 GMT

There is a constraint, but I can not delete it, but it forces to move sketch with planes.

Re: Sketch is stretching with ref planes without any constraints

ToanDN — Fri, 22 Jul 2022 16:46:05 GMT

@denisyukJ wrote:

There is a constraint, but I can not delete it, but it forces to move sketch with planes.

Drag the witness from the side ref plane to the center ref plane, or add a ref plane within the sketch editing mode to witness the dim.

the there will be no issue.

Re: Sketch is stretching with ref planes without any constraints

denisyukJ — Mon, 25 Jul 2022 08:30:30 GMT

Thank you, @ToanDN

I am not sure that totally understand the logic of such behaviour, but in this particular case it works.