Recommendations When Modeling a 3D Harness
Consider the following recommendations when modeling a 3D harness for use with HMX:
• Avoid close loop topographies where possible.
• Associate all components to a location point on the harness to include them for harness flattening. For example, backshells and tie-wraps must reference a harness location.
• Avoid incomplete wires, that is the wires that do not terminate to an entry port at both ends, or are not continuous. The incomplete wires are shown as
![](../../electrical_design/harness_mfg_extn/images/incomplete_wires.png)
and are ignored during the flattening process.
• Avoid unterminated wires, that is those incomplete wires that terminate only at one entry port.
• Ensure the selected harness does not contain any failed or suppressed features.
• Avoid external references where possible. You should correct any lost references prior flattening the harness.
• Ensure that the units of the assembly, harness part, spools and drawing are consistent and are either mm or inches.
• Regenerate the harness and resolve any warnings prior flattening.
• Ensure all spool units match mm or inches.
• Ensure spool units, harness units match the configuration option pro_unit_length.
• Keep branch junctions simple that is at the most three locations, and all cables passing through them.
• Where possible avoid two or more breaks in a connector.
• Ensure configuration option pro_symbol_dir is modifiable by the user in the session.