Constraining a sketch about 0

[Anonymous]

How do I contrain a sketch (a rectangle for instance) to be symetrical about 0,0. So that if an end of a line is stretched, the rectangle will change size, but it's center will remain at 0,0.

[Anonymous]

You can add the projected origin to the template
and you don't need any geometry at all, you can use two
constraints.

~Larry

style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">

"JDMATHER" <jmather@pct.edu>
wrote in message
href="news:f15eee2.18@WebX.maYIadrTaRb">news:f15eee2.18@WebX.maYIadrTaRb...

phousel,
The only difference between doing this in Inventor rather than Solidworks is
that in Inventor you must project the origin center in each new sketch to snap
a line (or circle, or other sketch entity) to it. In Solidworks the origin is
already "projected" to any new sketch. If you have an equal sided polygon you
will need to create a construction circle from the center to a tangent in
Inventor, while Solidworks will automatically create the construction circle
any time you use the polygon tool. (On my wish list for Invenor)
J.D.

[Anonymous]

Don't add it to the "standard.ipt" template... make a named copy.

iPart children use the Standard.ipt template and the projected centerpoint
will be visible in the child parts.

QBZ


"Larry Caldwell" wrote in message
news:7C2E572B699D1682DE58FD8914DFB12A@in.WebX.maYIadrTaRb...
> You can add the projected origin to the template and you don't need any
geometry at all, you can use two constraints.
> ~Larry
> "JDMATHER" wrote in message
news:f15eee2.18@WebX.maYIadrTaRb...
> phousel, The only difference between doing this in Inventor rather than
Solidworks is that in Inventor you must project the origin center in each
new sketch to snap a line (or circle, or other sketch entity) to it. In
Solidworks the origin is already "projected" to any new sketch. If you have
an equal sided polygon you will need to create a construction circle from
the center to a tangent in Inventor, while Solidworks will automatically
create the construction circle any time you use the polygon tool. (On my
wish list for Invenor) J.D.

[Anonymous]

Constrain the width and the length and then constrain the one side of the width to the center point, and one side of the length to the center point. That way as the overall length and width changes, it changes over 0,0

[ArtC]

If you want to you can project the Origin point in template file and it will be projected any time you use that template.

[Anonymous]

As was mentioned in a different thread, make a new template (different name)
with the origin projected. iParts use the "Standard.ipt" to create the children,
so the point will show up on all new iParts.

--
Dave Jacquemotte
Automation Designer

[ArtC]

I need to read the next reply befour I make one.

[Anonymous]

Quinn has made AVI's showing two methods of doing this and I have posted them on my iClips
page.

http://www.mymcad.com/KWiK/iClips/iClips.htm

There is both versions of the AVI's with Voice and without. The With Voice is 2.4 meg,
but the soothing voice of Quinn might make it worthwhile.

--
Kent
Assistant Moderator
Autodesk Discussion Forum Moderator Program

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"ArtC" wrote in message news:f15eee2.22@WebX.maYIadrTaRb...
> If you want to you can project the Origin point in template file and it will be
projected any time you use that template.

[Anonymous]

Hmmmm,

Walt is writing iSonnets and you have your sarcasm dial turned way up.

It must be Friday.

QBZ


"Kent Keller" wrote in message
news:ABF679ED6F132DA0195A9661BAA9FC86@in.WebX.maYIadrTaRb...

> http://www.mymcad.com/KWiK/iClips/iClips.htm
>
> There is both versions of the AVI's with Voice and without. The With
Voice is 2.4 meg,
> but the soothing voice of Quinn might make it worthwhile.

[Anonymous]

Thanks to all for all the solutions. I was thinking of submitting a "wish list" item, to allow the origin point to be projected in all new sketches (a user selected option would be nice). I usually refer to the origin and find myself projecting the origin in almost every sketch. Does anyone know if this has been suggested?

[Anonymous]

Whatch out, time for MechMan to post some oddball ideas.



Another option for constraining sketch geometry around the Origin point is to Constrain a circle around the Origin and then draw your geometry inside the circle with the endpoints constrained to the circle. Works for triangles, squares, hexagons, etc...



Of course for equal sided shapes you can also use the polygon tool.



As for a wish list item for this category how about adding a Project Geometry option to the RMB menu of all work features.



MechMan

[Anonymous]

I like it! RMB - suggestion that is. While we are at it, how bout adding line type (style) to RMB.?