Error: "Post Processor not compatible with Machine Simulation" in Fusion 360
Add machine simulation support to your post in Fusion 360 with our troubleshooting guide. Follow our steps to resolve the issue and ensure proper machine simulation
Issue
Error: Post Processor not compatible with Machine Simulation. Simulating without a machine.
The post-processor used in the setup does not have the required functions to support machine simulation
The post-processor used in the setup does not have the required functions to support machine simulation

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- Contact support@dsi-mfg.com with a copy of this error and your current post processor
Answer
Adding the required functions
- Add machine simulation to capabilities
capabilities = CAPABILITY_MILLING | CAPABILITY_MACHINE_SIMULATION;
- Add the machine simulation functions to the post
- Use the Machine Simulation post for reference. Found here
// ***** This is an example only *****
// ####
// #### The code below is relevant for machine configuration / simulation ####
// ####
// Start of machine configuration logic
var compensateToolLength = false; // add the tool length to the pivot distance for nonTCP rotary heads
// internal variables, do not change
var receivedMachineConfiguration;
var operationSupportsTCP;
var multiAxisFeedrate;
function activateMachine() {
// disable unsupported rotary axes output
if (!machineConfiguration.isMachineCoordinate(0) && (typeof aOutput != "undefined")) {
aOutput.disable();
}
// ***** This is an example only *****
- Use the Machine Simulation post for reference. Found here
- Add setCurrentABC(abc) to setWorkPlane
// Look at the Machine Simulation post for reference
setCurrentABC(abc); // required for machine simulation - Remove the old machine axis setup in onOpen and activate the machine
function onOpen() {
// ***** Add these lines *****
receivedMachineConfiguration = machineConfiguration.isReceived();
if (typeof defineMachine == "function") {
defineMachine(); // hardcoded machine configuration
}
activateMachine(); // enable the machine optimizations and settings
// ***** Remove these lines *****
var aAxis = createAxis({coordinate:0, table:true, axis:[1, 0, 0], cyclic:true});
//var cAxis = createAxis({coordinate:2, table:false, axis:[0, 0, 1], range:[-360, 360], preference:1});
machineConfiguration = new MachineConfiguration(aAxis);
setMachineConfiguration(machineConfiguration);
optimizeMachineAngles2(1); // map tip mode
}
if (!machineConfiguration.isMachineCoordinate(0)) {
aOutput.disable();
}
if (!machineConfiguration.isMachineCoordinate(1)) {
bOutput.disable();
}
if (!machineConfiguration.isMachineCoordinate(2)) {
cOutput.disable();
} - Save the post and re-attach it to the machine config if necessary
- Re-simulate the setup.