How to Avoid Draft Skins that Intersect?
Scenario
When performing a basic draft, the preview shows that the
draft skin self-intersects.
Workarounds
There are two possible workarounds to obtain a satisfactory result.
Workaround 1
Use Variable Angle Draft
,
which allows you to assign different angle values.
Workaround 2
Define limiting elements (for example two planes as shown
below) and fulfill the gap with a Fill
or Multi-sections Surface
(a Generative Shape Design license is required to use these
capabilities):
How to Ensure that Drafting Faces Can be Trimmed?
The preview shows that the computable draft skin does not cover the face
to draft.
Workaround
Change the draft mode from Cone to
Square.
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You obtain this result: |
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How to Add and Remove Material at the
Same Time?
You perform a neutral draft
operation on a simple pad. Because the chosen pulling direction is not
normal to the neutral element, the application both needs to remove
material from one part area, and add material to another area of the part.
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Complete cylinder: The draft angle is less than angle between pulling
direction and cylinder axis |
The previews shows that the draft skin adds and removes material |
Workarounds
There are three possible workarounds to obtain a satisfactory result.
Workaround 1
If possible, change the pulling direction so that
material is either added or removed throughout.
Workaround 2
Increase the draft angle value so that material is either
added or removed throughout. (e.g. in above case increase angle from 5
deg. to 15 deg., leads to uniform removal of material). In general for
cylinders magnitude of draft angle should be greater than angle between
pulling direction and cylinder axis, for this to happen.
Workaround 3
Prior to using the Draft Angle capability
,
when defining the pad's direction select the same geometrical element as
the one you will use for defining the pulling direction. Then draft the
faces you want.
How to avoid Too Large Draft Skins?
You enter a large draft angle value.
Previewing the feature shows that the draft skin is too large. |
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