"Rewind of machine is required for simultaneous multi-axis toolpath and has been disabled" when post processing using Fusion

Autodesk Support

Jul 26, 2024

Products and versions covered

Issue:

When posting multi-axis operations from Fusion, Inventor CAM, and HSMWorks, the following error is shown in the post output:

Error: REWIND: Rewind of machine is required for simultaneous multi-axis toolpath and has been disabled. ^^^(...)^^^ Error: Failed to invoke function 'onRewindMachine'. Error: Failed to invoke 'onRewindMachine' in the post configuration.

Causes:

Machine rewinds are not enabled in the post processor.

Solution:

Use one of the following methods to enable automatic rewind function in the post processor:

Edit the Machine Configuration in Fusion

Edit the Machine Configuration to enable "Retract and Reconfigure".

Select the Machine Configuration in the NC Programs window when post processing.

Edit the Post Processor

Enable the rewind function in the post processor:

Open the post configuration file.
Find the following lines of code:

// Start of onRewindMachine logic
/***** Be sure to add 'safeRetractDistance' to post properties. *****/
var performRewinds = false; // enables the onRewindMachine logic

Change "false" to "true" as shown:

// Start of onRewindMachine logic
/***** Be sure to add 'safeRetractDistance' to post properties. *****/
var performRewinds = true; // enables the onRewindMachine logic

Products:

Autodesk HSM; Fusion; Inventor CAM;

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