Extrusion Elements in MechDesigner
Do Tutorial 3 before this Tutorial
We use the name 'Solid' for two elements:
|•||Profiles / Extrusions: We add these elements to a sketch-loop, which is a construction of sketch-elements that are joined end-to-end in a Part.|
|•||Imported CAD models: We use SolidWorks [or other CAD] to design these elements, before we import them onto a Part.|
Solids do not change the kinematic analysis. Solids do, however, change the kinetostatic [force] analysis.
Add and edit:
|•||Profiles and Auto-Profiles|
You can use the sketch tools in the Part-Editor for a number of reasons. One reason is to add sketch-loops for Extrusions. However, the Part-Editor is not as powerful as those in solid modelling software. You cannot add complex geometry with the Part-Editor. If you add many sketch-elements to a single Part, the Part-Editor will slow down while you edit or add more constraints.
Do not add a complex sketch. Keep the sketch as simple as possible.
|•||Break down the complete sketch to smaller, simpler, separate sketch-loops|
|•||To specify the position of each sketch-loop, add dimensions from the X and Y-axes for at least one Poin in the sketch-loop, and then dimension sketch-elements relative to each other.|
|•||Do not dimension a sketch-loop relative to a different sketch-loop|
|•||Do not add a constraint between a sketch-element in one sketch-loop and a sketch-element in a different sketch-loop.|