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Radii in 3D sketches...

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Message 1 of 27
knowga
1780 Views, 26 Replies

Radii in 3D sketches...

Hello,

 

Anyone out there had problems trying to put a fillet on a 3D sketch?

I have a corner interface that is made up of an arc to a straight line...and can I heck as like put a fillet on that corner.

 

Is it possible or just a facility that doesn't work on arc/line interfaces?

 

regards


Gary

26 REPLIES 26
Message 2 of 27
JDMather
in reply to: knowga

Works fine here.
Attach the file that exhibits this behavior.


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Message 3 of 27
knowga
in reply to: knowga

Have a play with this...

there is only one radius to complete...

 

if you're able to radius it, we must be missing an update somewhere down the line...

 

regards

 

Gary

Message 4 of 27
JDMather
in reply to: knowga

See attached.

You will have to reproduce since this was done in edu version.

 

Oops, what version did you say you are using?

The trick is to use 3 point arcs rather than those Include Geometry arcs.


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Message 5 of 27
knowga
in reply to: knowga

Hello,

 

The version Im using is IV2011.

Hopefully I'll make it work on Monday (at home now)

 

thanks for your help...if it works, Ill report this as solution accepted.

 

regards

 

Gary

Message 6 of 27
knowga
in reply to: knowga

I couldnt load it...you're using IV2012...Im on 2011...

but I tried the 3 point arc...and that wouldn't work for me...

I snapped to one line, snapped to the other...the centre can be anywhere...

but when I tried to apply a tangential constraint for the arc to the snapped lines, it wouldn't do it?

 

take me from here...

 

regards

 

Gary

Message 7 of 27
trumpy81
in reply to: knowga

In 3D Sketch9 the first half of the geometry is drawn, but the second half is projected (from what I don't know), so if you are trying to fillet the projected part of the path it won't work. You would need to go back to wherever that geometry was projected from and alter it there.

 

HTH

Regards
Andy M
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Message 8 of 27
knowga
in reply to: trumpy81

The projected line is an arc...the line it connects to is at an angle of 25 degrees from the plane of the projected line.

This creates a compound angle i need to put a radius on.

Going back to the projected line wouldn't help.

I'm finding i can't radius 2 arcs in a 3D sketch...and I can't make an constrain an arc tangential to a line in 3D sketch either.

 

regards

 

Gary

Message 9 of 27
JDMather
in reply to: knowga

What problem are you having creating the 3-point arcs in the 3D sketch as instructed earlier in Post #4?

 

3point arcs.png


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Message 10 of 27
JDMather
in reply to: JDMather

Did 2011 have this tool?

 

3d arc.png


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Message 11 of 27
JDMather
in reply to: JDMather

Forget that problem bend for a minute.

First you need to get these two arcs created in the 3D sketch (if 2011 had the tool for 3Point arc).

 

Otherwise it is going to have to be done with intersecting projected curves similar to my Knot tutorial.

 

arcs.png


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Message 12 of 27
knowga
in reply to: JDMather

Hello,

 

IV2011 does have that tool...I have previously drawn non-projected arcs as per your marked up sketch...

at this point (having gave up) I have sketched an arc on one line as per your red aroow on your sketch...

Then I've tried sketching in an arc between the newly added line and the angled line...(crossed out 75 rad) but I can't tangent this new arc to anything...

it allows me to select one line but not a second line...

I just cannot draw an arc in 3D sketches...and I've tried all your suggestions before you suggested them...

so I'm lacking something that you have...

 

regards


Gary

Message 13 of 27
JDMather
in reply to: knowga


@knowga wrote:

Hello,

 

at this point (having gave up) I have sketched an arc on one line


You are not following my instructions.

I did not draw an arc on any line.

Have you given up or should I elaborate the instructions?


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Message 14 of 27
JDMather
in reply to: JDMather

Note these points in Sketch2 (don't really need them but it will help visualize the placement of the 2 3D arcs (forget the problem arc for now).  Note that these points are on arcs - not on a line.

They are the endpoints and midpoints of two arcs in Sketch2.

 

points.png


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Message 15 of 27
knowga
in reply to: JDMather

this is what I get when I draw in arcs...in sketch 9...from the points in sketch 2 that you highlighted.

 

 

Message 16 of 27
JDMather
in reply to: knowga

I don't see the points in your image that are in my image?

Attach your latest attempt here.  (I am really onluy interested in Sketch2 at this point.)


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Message 17 of 27
knowga
in reply to: JDMather

Note that the lines are green because I can't constrain them to anything...

IV2011 won't let me...I've tried everything...

 

regards


Gary

 

ps. I'm about to go home so I'll check your reply in the am...

Message 18 of 27
JDMather
in reply to: knowga

I don't understand what you are doing.
It looks like you are trying to get ahead of the horse.

 

Your Sketch2 doesn't look like my Sketch2  (you didn't change to construction and add the sketch points)?

I said to forget the problem bend for now, yet you already have a Sweep and for some reason a Move Face?

 

Let's set up Sketch2 first and keep this simple.  Change everything in Sketch2 to construction and add sketch points at the ends and midpoints of those two curves.

(delete the Move Face and Sweep, but not anything else)


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Message 19 of 27
JDMather
in reply to: knowga


@knowga wrote:

Note that the lines are green because


Where did I instruct to create any lines?

 

If you follow my instructions step-by-step the 3D sketch will be fully constrained and trivially easy to create.

But I don't generally reveal the next step until I am sure the previous step is fully understood.


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Message 20 of 27
knowga
in reply to: JDMather

here's my sketch 2 with the points in...

 

I think you can safely say Im not interpretting your instructions correctly...but Im trying...

 

regards

 

Gary

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