¶ ⚠️ Critical Warning
Helio Optimisation requires your printer to be in good working condition:
- Printer must be well-maintained, not modified (e.g., no AMS Riser or top glass removed), and properly calibrated.
- Build plate must be clean (free of oils, dust, residue). Use the correct build plate for the material. The Bambu PEI plate works for most materials; PC/PA typically require glue
- Filament must be dry — moisture causes extrusion issues and weak bonding.
- Disable any feature that introduces delays to layer time (e.g., time-lapse, pauses) — otherwise optimised G-code will be invalid.
- Review the G-code in the preview and confirm changes before printing. Helio only adjusts your print speeds. Your chamber, nozzle, and bed temps are set in your filament settings.
- Optimisation targets strength and reduced warping, which may trade off some aesthetics. You can balance this via suggestions in the 📖 User Manual.
¶ Quick Start Guide — Helio Optimisation in Bambu Studio
- This quick start guide will walk you through your first run of Helio Optimisation so you can get printing in as few steps as possible.
- For more detail and advanced options, see the full 📖 User Manual.
- For the advantages of optimisation on a filament by filament basis check: Filaments.
1. Set Smooth Coefficient = 0.2
(Quality → Advanced → Smooth coefficient)
A low value makes speed changes smoother when Helio increases speeds.
Strictly necessary for low-Tg materials like PLA and PETG
2. Leave bridges & overhangs at defaults
Helio does not retune these. Keep the slicer defaults or your settings that are already known to work well.
3. Slice → Helio Action → Optimization
4. Outer wall optimisation
In the Helio dialog, set Optimise Outer Walls = No if surface finish is your top priority.
5. Confirm and wait for Optimization to complete.
6. Review the gcode in preview, check adjusted speeds, layer times, etc, and if happy go and print.
¶ Material Specific Quick Start Guidance
To get the best from the optimiser for specific materials we recommend the following actions:
¶ Low-Tg materials (PLA, PETG)
1. Filament → Cooling → Pre start fan time = 2 s
Ensures the fan is spinning before delicate regions.
2. Keep all other defaults (e.g. fan profile).
3. Slice → Helio → Optimise → Confirm → Print.
¶ High-Glass Transition Temperature (Tg) Materials (PC, ABS/ASA, PA)
1. Bed temp = max recommended.
2. Chamber temp = max (if supported).
3. Nozzle temp = top of recommended range (or per temp tower).
3. Slice → Helio → Optimise → Confirm → Print.
¶ ⚡ Performance Notice
Optimisation takes longer than simulation because multiple simulations are run to find the best solution:
- If optimisation fails, your quota is refunded.
- Rough guide: parts up to half build volume optimise in reasonable time.
- Larger parts → set slicer to minimum layer time and run simulation only.
¶ ⚠️ Known Limitations
- Filament swaps or long pauses break thermal continuity.
- Timelapse photography interferes with layer timing.
- Non-standard slicer mods are unsupported.
- Exotic materials may not be covered unless listed in caps table.
¶ ✔️ Reminder
Helio Optimisation is designed to reduce warping and improve strength. Aesthetics may change slightly, but you can balance strength vs. finish using the User Manual’s guidance. Always review the G-code preview before printing.