3D Hose tutorial

Does anyone have a step-by-step tutorial for doing 3D hoses? It's all
very confusing to me, I would like to examples.

SW2003


Aaron

 

It's actually quite easy....make a cirkle on one plane ....then draw a 3D
sketch with the start perpendicular to that plane....make a thin sweep. I
have lot's of examples so I'll mail You a few

Krister L

 

If I could give my humble opinion on the subject. We do a lot of cable
layout drawings over here (coax), and gave up using 3d sketches: too
cumbersome and hard to control. We create curves using "sketch on
sketch" option. One sketch is the path on the "flat" plane (say Top
plane), the second sketch is the path on the "vertical" plane (say
Right plane). By vertical I mean that's where the cable changes
elevation. Once the curve is created, it's just a matter of drawing
the cross section of the cable on a plane normal to the curve, and
sweeping that sketch along the curve.
The path (in both cases) is made up of arcs, lines and sometimes
splines. By dimensioning as much as possible the sketches, it allows
easy "tweaking" of the path (route).
I hope it helps. Best regards from Down Under.

 

I found your post on "sketch on sketch" option to drawing cabling very
interesting. We do alot of copper tubing design. which require a lot
of bending of our tubes in every freakin direction. We do alot of it
by using the 3d sketch tool and agree that it is very cumbersome to
control or edit later on. Could you please "enlighten" me some more on
your "sketch on sketch" method.

 

John is talking about Projected Sketch Curves.

The Projected Sketch tool can create a 3D curve that represents the
intersection of two extruded surfaces from sketches on two intersecting
planes.

 

Sorry, I should have used the correct terminology in my post: sketch
on sketch is an option in the 3D Curve command.
Chapter 5 pages 18 & 19 of the 2004 Reference guide cover the subject
of 3D curves.
I have created a very simple example and placed screen shots in a Word
doc. Can I email it to you using the address from your post?
When creating the various sketches that make up the 3D curve, make
sure that arcs or splines are tangent to the lines they connect to:
the cross section you are sweeping along the curve, should always end
up being planar to the curve (at start & end of the sweep).
Otherwise, the next section of tube/cable/pipe you add will we
"crooked"…
Arlin mentions surfaces in his post. Again, we did use "sketch onto
surface" option in 3D Curve command, but found that the surfaces
created would mysteriously appear in the assemblies where the cables
were used. Hiding the body of the surface is unstable for some reason.
Bloody hard to try & explain that in a post. I hope I make sense !

 

Yes, could you please e-mail the screen shots i would appreciate that
very much. The way i understand projected sketch. is from an existing
entity, surface, edge, etc.. What about in a blank parts file. in
other words. starting from scratch.