This section gives you tips for creating special drafts.
How to avoid draft skins that intersect?
How to ensure that drafting faces can be trimmed?
How to add and remove material at the same time?
How to avoid too large draft skins?
How to draft faces separated by a concave edge?
When performing a basic draft, the preview shows that the draft skin self-intersects.
There are two possible workarounds to obtain a satisfactory result.
Use Variable Angle Draft , which allows you to assign different angle values.
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):
The preview shows that the computable draft skin does not cover the face to draft.
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.
There are three possible workarounds to obtain a satisfactory result.
If possible, change the pulling direction so that material is either added or removed throughout.
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.
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.
There are two possible workarounds you can use.
Use the draft skin generated by the failed draft variable draft -for this, confirm the use of the Extract capability as proposed by the application).
Generate and extrapolate a draft skin using Swept Surface (a Generative Shape Design license is required to use this capability)
...and sew it onto the initial body using Replace Face or Sew Surface :
An error message is issued. The application cannot compute the draft feature, even if you try to perform two draft operations.
Perform a Split operation and then draft the faces you want. To be more precise: