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Arc length how 2

14 REPLIES 14
Reply
Message 1 of 15
Anonymous
683 Views, 14 Replies

Arc length how 2

In a sketch can I dimension the length of an arc, not the radius.

Matt
14 REPLIES 14
Message 2 of 15
Anonymous
in reply to: Anonymous

Are you talking about the chord of the arc? Or the circumference?

--
Derek Sevier
Mechanical Design Engineer
Quality Corporation
derek dot s at donkeyforklift dot com
www.donkeyforklift.com


"Matt Luedke" wrote in message
news:f17e36c.-1@WebX.maYIadrTaRb...
> In a sketch can I dimension the length of an arc, not the radius.
>
> Matt
>
>
Message 3 of 15
Anonymous
in reply to: Anonymous

Circumference

"Derek Sevier" wrote in message
news:AE15696310452765A256F43704EDE3E9@in.WebX.maYIadrTaRb...
> Are you talking about the chord of the arc? Or the circumference?
>
> --
> Derek Sevier
> Mechanical Design Engineer
> Quality Corporation
> derek dot s at donkeyforklift dot com
> www.donkeyforklift.com
>
>
> "Matt Luedke" wrote in message
> news:f17e36c.-1@WebX.maYIadrTaRb...
> > In a sketch can I dimension the length of an arc, not the radius.
> >
> > Matt
> >
> >
>
>
Message 4 of 15
rllthomas
in reply to: Anonymous

Length would depend on sweep angle and radius. You would have to fix one and make an equation for the other.
Message 5 of 15
Anonymous
in reply to: Anonymous

I don't think INV can't do it. Anyone correct me, please?

--
Derek Sevier
Mechanical Design Engineer
Quality Corporation
derek dot s at donkeyforklift dot com
www.donkeyforklift.com


"Matt Luedke" wrote in message
news:83ABEEA715CBF071292BF23D499F19BD@in.WebX.maYIadrTaRb...
> Circumference
>
> "Derek Sevier" wrote in message
> news:AE15696310452765A256F43704EDE3E9@in.WebX.maYIadrTaRb...
> > Are you talking about the chord of the arc? Or the circumference?
> >
> > --
> > Derek Sevier
> > Mechanical Design Engineer
> > Quality Corporation
> > derek dot s at donkeyforklift dot com
> > www.donkeyforklift.com
> >
> >
> > "Matt Luedke" wrote in message
> > news:f17e36c.-1@WebX.maYIadrTaRb...
> > > In a sketch can I dimension the length of an arc, not the radius.
> > >
> > > Matt
> > >
> > >
> >
> >
>
>
Message 6 of 15
Anonymous
in reply to: Anonymous

Not directly but you can dimension the either the radius or the angle of
curvature and define it as a function of the desired arc length.
arclength=radius*angle(in radians).

Pat

"Matt Luedke" wrote in message
news:f17e36c.-1@WebX.maYIadrTaRb...
> In a sketch can I dimension the length of an arc, not the radius.
>
> Matt
>
>
Message 7 of 15
Anonymous
in reply to: Anonymous

How about this?

radius*angle=arclength

--
Derek Sevier
Mechanical Design Engineer
Quality Corporation
derek dot s at donkeyforklift dot com
www.donkeyforklift.com


"Matt Luedke" wrote in message
news:83ABEEA715CBF071292BF23D499F19BD@in.WebX.maYIadrTaRb...
> Circumference
>
> "Derek Sevier" wrote in message
> news:AE15696310452765A256F43704EDE3E9@in.WebX.maYIadrTaRb...
> > Are you talking about the chord of the arc? Or the circumference?
> >
> > --
> > Derek Sevier
> > Mechanical Design Engineer
> > Quality Corporation
> > derek dot s at donkeyforklift dot com
> > www.donkeyforklift.com
> >
> >
> > "Matt Luedke" wrote in message
> > news:f17e36c.-1@WebX.maYIadrTaRb...
> > > In a sketch can I dimension the length of an arc, not the radius.
> > >
> > > Matt
> > >
> > >
> >
> >
>
>
Message 8 of 15
Anonymous
in reply to: Anonymous

I will make an equation to calculate the
length


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Length
would depend on sweep angle and radius. You would have to fix one and make an
equation for the other.
Message 9 of 15
markp
in reply to: Anonymous

If it is drawn in a 3d sketch state you can check length's with the Measuer loop comand. Just food for thought. I draw full serpentine's for automotive, and this helps out for figuring tube length's. Mark
Message 10 of 15
Anonymous
in reply to: Anonymous

As others have said, the arc length is equal to the radius times the
included angle. Another approach would be to create a parameter for the arc
length that you want and then dimension the chord length using the formula:

L = 2 * c * sin(a/2) / a

where

L = chord length
c = arc length
a = included angle

Of course, this assumes that you know the included angle and radius of the
arc.

Blane
Message 11 of 15
Anonymous
in reply to: Anonymous

The drawing manager can do it.

Activate the dimension command
Select the arc
Right click and choose Dimension Type
Click on Arc Length

HTH
--
Bill Bogan
B2 Design
www.b2-design.biz/Index.htm
bb@b2-design.biz

"Matt Luedke" wrote in message
news:f17e36c.-1@WebX.maYIadrTaRb...
> In a sketch can I dimension the length of an arc, not the radius.
>
> Matt
>
>
Message 12 of 15
rllthomas
in reply to: Anonymous

Bill!



How the heck are you?
Message 13 of 15
Anonymous
in reply to: Anonymous

Rich does that mean you are
speechless?   😉


--
Regards,
Jason Ruge
Drawing Manager Tech Lead
Inventor
QA
Autodesk, Inc.

 


 


style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
Message 14 of 15
rllthomas
in reply to: Anonymous

Looks more like I'm talking in stereo with the dual posts.
Message 15 of 15
Anonymous
in reply to: Anonymous

OK... up to my ears in work at the moment.... thats
a good thing considering I'm on the user side of the fence these
days.

--
Bill Bogan
B2 Design

href="http://www.b2-design.biz/Index.htm">www.b2-design.biz/Index.htm


href="mailto:bb@b2-design.biz">bb@b2-design.biz


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


How the heck are you?

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