Sheet metal drawing with flat pattern - regeneration problem

[oxana]

Hi,

I created a sheet metal part with flat pattern at the end to use it for the blank creation. I added 145444_blank with the flat pattern set to “YES” to the family table, and used this instance as the drawing model. The part itself has pretty fine section for the given length, but it regenerates without any problems when I increase the length. The drawing however is acting funny. It does regenerate without problems until the part length is increased to a certain value. When that value is reached, the drawing fails: I regenerate the model in the drawing mode, and get a message “FEATURE #17 (FLAT PATTERN), Part 145444_blank, failed regeneration. – Could not construct the geometry”. I thought that the problem was the accuracy, but as I mentioned, the part itself regenerates without problems. I was experimenting and found something else: if I erase the drawing from the session, change the length of the part, and then open the drawing again, I don’t encounter any problems. Does anyone know what the problem might be and how to fix it?

Thank you,

Oxana

 

[3dlogix]

There could be a few things to look at.
If it is accuracy:
The ProE default is set to 0.012. This means that the smallest feature that ProE can make will be 0.012 times that of the diagonal bounding box size of the part itself. So the bigger the part, the "bigger" the smallest feature can be set to. Try changing the accuracy from RELATIVE to ABSOLUTE, and enter a value in the part units (0.001" or 0.05mm as an example). The RELATIVE setting has no units since this is just a ratio.

If is the acutal sheetmetal part or geometry that fails, I suggest to use the FLAT STATE rather the the FLAT PATTERN option. Dekete the FLAT PATTERN and select SETUP / SHEETMETAL/ FLAT STATE / CREATE / enter the default name "yourpart_flat1" / FULLY FORMED.

Good luck;

Steve

http://www.3dlogix.com