16-Pearl

Question

[Sheetmetal] Points on a wall and unbend

Forum|Forum|9 years ago
April 27, 2016
4 replies
5628 views

Hi all,

Here's a problem I have on sheetmetal. I have drawn a sketch containing points on a wall. When I unbend the points remain in the same place and don't follow the wall.

The problem is that I have welded studs constrained on this points, and I would like to do a drawing for the workshop showing the welded studs on the flat part.

Any idea ??

As a workaround, I think of doing a second sketch on the flat part and assemble the studs on it...

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Sheet Metal Design

K

KenFarley

21-Topaz II

Don't weld studs usually have either a thru hole or a pilot hole to locate them? If so, you could put the holes in walls, then they would be in the flat pattern. Of course, I don't know what type of studs you are planning to use, but that's my suggestion.

R

RaphMORIN

Author

16-Pearl

No, in fact they don't need a hole. We weld them with a cnc machine. They look like below and are designed to be weld on a flat surface.

T

TomD.inPDX

17-Peridot

What if you moved the points to a unfolded state. do they fold back?

I've done a little in this regard and sometimes things move with and other times they don't.

There has to be some logic to it.

I would recommend you create a support case if you can.

Quite often I've had very qualified technicians explain a lot more than I'd ever gleaned from this forum.

Another thought is to place holes and then refill them. These holes provide axes which can be used for the studs.

J

JamesKasson

1-Visitor

We use very small shallow blind holes in this case, then either assign a marking tool in our CAM software for punching, or etch the circle for laser cutting. One can use the hole tool or make a extruded cut with the "remove material normal to surface" deselected.

R

RaphMORIN

Author

16-Pearl

Thanks James for the workaround. I made small shallow blind holes and constrained the studs on them. It works fine now.

I open a case to see what PTC says.

kdirth

21-Topaz I

That is how CREO works.

Another work around is to make points in the flat state also. Then in the assembly assemble a second set of weld studs with the part flattened. You can then use simplified reps to show the assembly correctly in both states.

There is always more to learn.

D

dpruitt

10-Marble

Why not just assemble the studs directly to the part without any points or axis and pattern to suit what you need, it's easier to change positions because you go directly to the part instead of rooting through the model tree to figure out how they're constrained. IMHO....just another way to do it.