Fusion Post Processor Modification: Change How Your Post Behaves
When a post needs new behaviour, not just new formatting. We modify Fusion post logic for new machine options, probing, pallets, sub-spindles, rotary output, cycles, macros and process changes, without breaking what already works.
New capabilities in an existing post
Machines change over their life. A shop adds a fourth axis, a probe, a pallet changer, a bar feeder or a tool setter. Processes change too: new tapping methods, high-speed machining modes, broken-tool checks or macro-based part counters. Each change needs the post to behave differently, which goes beyond adjusting a few output lines.
ENGIMANDI modifies Fusion posts by working within the post's structure: extending section handling, tool change and retract logic, cycle output, rotary and multi-axis handling, and adding new commands triggered by Fusion manual NC entries or operation properties. We check side effects on existing output with before-and-after comparisons across a set of reference programs, so the rest of the post keeps working exactly as before.
Related reading: post processor modification and optimisation.
What you get
- New machine options supported
- Probing & tool setter logic
- Pallet & bar feeder handling
- Rotary axis additions
- Cycle & macro changes
- Manual NC command handling
- Regression comparison
- Change documentation
Typical Fusion post modifications
Behaviour changes, done safely.
Added Axes
4th axis or rotary table added to a 3-axis post with correct output and clamping.
Probing
Probing cycles, WCS updates and inspection output for Renishaw and other probes.
Pallets & Automation
Pallet changes, bar feeders, part catchers and robot signals.
Cycle Logic
Rigid tapping, chip breaking, thread milling and cycle expansion rules changed.
Macros
Part counters, tool life checks, broken tool detection and custom macro calls.
Regression Checks
Reference programs compared before and after every change.
Modification tools
Post engine and testing.
Typical projects
- Rotary table added to a VMC post
- Tool breakage check after every drill
- Pallet changer with separate programs per pallet
- Bar feeder and part counter for a lathe
- Custom peck cycle for deep holes
- Probe macro calls from Fusion probing operations
How we modify posts
Baseline
Reference programs from the current post.
Specify
New behaviour and machine codes.
Modify
Logic changed within the post structure.
Compare
Regression and new output checked.
Prove
First run with your operator.
Post modification questions
Can you modify a post written by someone else?
Yes. We review unfamiliar posts first, then modify them carefully. If the code is too fragile, we will recommend a rebuild.
How do you avoid breaking existing output?
We post a set of reference programs before and after each change and compare them line by line.
Can new commands be triggered from Fusion?
Yes. Manual NC entries, operation properties and post properties can all trigger new post behaviour.
Will modification affect machine simulation?
If axes or kinematics change, we update the machine configuration so simulation stays accurate.
Is modification cheaper than a new post?
Usually, yes, when the post is well structured and close to what you need.