Continue to Site

Welcome to MCAD Central

Join our MCAD Central community forums, the largest resource for MCAD (Mechanical Computer-Aided Design) professionals, including files, forums, jobs, articles, calendar, and more.

difficult geometry, dome bottle, HELP

al204

New member
hello Proe pros,


I have attached images of a bottle I was asked to model. So far this has been beyond my knowledge/skills.


Does anyone have suggestions on how to tackle modeling this bottle? A particularly difficult zone is the dome on the top.

using wf 3.0

best regards

al.View attachment 5697
 
Dear al204

You have to sketch as much as possible of lines and curves
to define the overall shape of this bottle then you have to
use variable section sweep, boundary blend or surfacing
techniques.

Best Regards,
Faisal
 
muadib3d said:
All listed above are based on Solidworks, what finaly does not make any difference because the methodology on both Aps are the same.

Except for when he uses the Surface Fill command to complete the "hair-like" contours. 'Im not too familiar with saladworks, but, unless I'm missing something, this is not easily accomplished in Pro/E.

al204's bottle can probably be best modeled in Creo Freestyle
 
Thats "boundary surface" which is used in that slide,cant
see any fill features there.you should be able to
duplicate that in Creo or ProE.
BTW, I've tried Creo Fill surface in ISDX,still not as
good solidworks fill,and should be in the base package of
course.
 
mgnt8 said:
Except for when he uses the Surface Fill command to complete the "hair-like" contours. 'Im not too familiar with saladworks, but, unless I'm missing something, this is not easily accomplished in Pro/E.

for 3 and 4 sided boundaries SW Fill command can be simply reproduced by Boundary Blend tool. If 5, 6 or more sided boundaries are considered ISDX can handle this(at least it tries its best to do that)

one should know how to use boundary blend, how to replace 3 sided
surfaces with those based on 4 edges, and so forth, before facing task
like this one.



and if definitions mentioned above( 3-4 sided boundaries, etc), are no
clear enough, this forum is great place to ask about that.
 
Cool example Greg.yes,i was referring to the new n-sided patch tool which is embedded in the ISDX surface feature(trimmed rectangle). it does the job,but solidworks creates more uniform surfaces for the cases i tried. (better looking iso curves i mean) solidworks fill is independent of the shape of its bounding curves,(fill surface iso curves are not affected by the shape of the boundaries).here's an example:
fill.png

Creo's fill isnt that clean sometimes. actually i wanted to replicate the above example in creo but that "trimmed rectangle" was grayed out.(why?)
on the other hand boundary surface is dependent on the shape of the boundary curves:
boundary.png
 
use an equation to create the helical curve.you can also create the helix with variable pitch.then use Variable section sweep to close out and finally shelling the model inside.
 
I'm drawing a blank when I try to imagine how a VSS will createthe half-moon shape that completes the contour. I would build a Style surface(s?) and trim it back
 

Sponsor

Back
Top