Fusion Sub-Spindle Post Processor
A sub-spindle lets a lathe finish both ends of a part in one cycle. We build Fusion posts that handle part transfer, spindle synchronisation, cut-off, back working, bar pulling and ejection, with correct coordinates and codes for your machine.
Done-in-one needs a careful post
On a twin-spindle lathe, the main spindle machines the first end, the sub-spindle moves in and grips the part, both spindles synchronise, the part is cut off, and the sub-spindle retracts to machine the back end. Each step needs builder-specific codes: spindle sync, chuck clamp and unclamp, sub-spindle positioning, torque skip or positive stop, and air or coolant for chip clearing. Back working also needs mirrored Z coordinates and the right spindle selection.
ENGIMANDI builds Fusion sub-spindle posts that follow your machine's sequence. We use Fusion's part transfer, cut-off and sub-spindle operations, output synchronisation and transfer codes, handle Z direction and work offsets for the sub-spindle, support bar pull and ejection, and simulate the whole process in Fusion before trials.
Read dual spindle post processors and mill-turn synchronisation.
What you get
- Part transfer sequence
- Spindle synchronisation
- Cut-off with sub-spindle grip
- Back working coordinates
- Chuck clamp / unclamp
- Bar pull & ejection
- Sub-spindle live tooling
- Simulated before trials
Sub-spindle post features
Both ends, one cycle.
Part Transfer
Approach, grip, synchronise and transfer on your machine.
Spindle Sync
Speed and phase synchronisation codes.
Cut-Off
Cut-off with the part held in the sub-spindle.
Back Working
Correct Z direction and offsets on the sub-spindle.
Bar Pull
Pulling bar stock using the sub-spindle.
Ejection
Part eject, catcher and conveyor codes.
Sub-spindle machines we post for
Twin-spindle lathes and mill-turns.
Typical projects
- Done-in-one parts on a twin-spindle lathe
- Transfer with torque skip on a Haas DS
- Back-end drilling with live tools
- Bar pull with the sub-spindle
- Part catcher and ejection sequence
- Fixing sub-spindle Z direction errors
How we build sub-spindle posts
Study
Machine sequence and codes.
Configure
Spindles and offsets.
Build
Transfer and back working.
Simulate
Full cycle in Fusion.
Prove
Step-by-step trials.
Sub-spindle questions
Does Fusion support sub-spindle work?
Yes, with part transfer, cut-off and sub-spindle operations. The post turns them into your machine's codes.
Why is back working tricky?
The Z direction and offsets change on the sub-spindle. The post must handle this correctly.
What about machines with two turrets?
See multi-channel posts.
Can the post do bar pulling?
Yes, where your machine supports it.
Do you support Swiss-type sub-spindles?
Yes, see Swiss-type posts.