New cutter shapes with variable radius profiles are supported for NC in version 14. Commonly called Barrel, Lens, or Oval tools, you can use these to program, rough, finish and 5-axis production toolpaths. Often these cutter shapes will reduce toolpath steps or leave a better finish.
The Layout Part in the Cimatron parting assembly is used to provide centerpoints for locating each molded part. It simplifies mold design because moving a layout point will shift the entire part and runoff associated with it. Several default Layout Parts are supplied with Cimatron, and creating new ones is very easy.
A Layout Part can only contain these two features:
- A dimensioned sketch of the layout points (the dimensions can be linked to the setup table for ease of access)
- A layout UCS on each point (note that a regular UCS will not work)
Adjustment of part position in X or Y is done by changing the sketch point dimensions. Adjustment in Z or part rotation is accomplished by editing the layout UCS (each layout UCS can be adjusted separately when selected).
Categories: Design, Mold
Tag: Cimatron 13
When exporting an electrode to NC, the overburn offset values for the electrode are automatically imported. You can find these values preset in any procedure that has the Electrode Machining parameter set to Automatic. These values are also loaded into the NC variables spgap and porbt, which means that they can be referenced in other formulas (e.g., step-overs, cutter size). This can be especially useful for electrode machining templates, ensuring a consistent result regardless of the overburn design of the electrode.
Categories: electrode, NC
You can easily change the cutter used by an NC procedure by simply double-clicking on the tool name in the NC Process Manager window. This opens up the Cutter dialog, where you can choose any tool from your library. When the NC general preference for “allow replacing tool without suspending motions” is enabled, you may not be required to recalculate the toolpath – but beware this will keep the new tool following the original tool motions.
The Tools / Exclude Objects function is a way to mark parts, objects, or PMI entities that you want to be excluded when a file is exported to NC or drafting. It provides an easy to way to keep standard geometry or catalog parts out of down-level documents. The same function can be used to remove the exclude status from parts and entities. At the same time, it’s important to remember that the exclude status is only viewable while in the Exclude Object function.
When an assembly is exported to a neutral format such as step or iges, the translator will set the internal 0,0,0 point of each file at the location of the file UCS_10. Often though, UCS_10 is irrelevant to the part and better control is desired. This is provided by the export parameter Assembly Construction.
Three options are available for this parameter:
Automotive – Sets the 0,0,0 point of each part at the assembly origin. This provides a way to export an entire assembly where each part references the body coordinate system.
Electrode – Sets the 0,0,0 point of each part where the special Electrode UCS is located.
Electrode NC – Sets the 0,0,0 of each part where the special Electrode NC UCS is located.
Note: in the case of Electrode or Electrode NC, if these special UCS are not found in the part, the system will instead use the active UCS of the part, which is also a good option.