🛠️ Helmet Printing – Best Results

These are the things I have found that yield the best print results (success rate and quality). I've printed hundreds of these and try to save my files set up in this way. I use Bambu machines and Bambu Studio so this is based on that:

1. Start with a clean build plate
If you’re having any adhesion issues, clean the plate with hot soapy water. I know this is boring and the first thing everyone says but it really can't be overstated.

• I use textured PEI plates (usually Bambu’s gold ones).

• Build plates wear out over time — even if they look fine, they can lose grip after months of use. I have pulled my hair out with stuff not sticking that used to stick. Cleaned and cleaned the build plate with no success, then grabbed a new one and get way better adhesion. I never use any glue, etc.

2. Leave the prime tower ON
I’ve had both successes and failures without a prime tower, but quality is always better with the tower.

3. Match support interface material to the part color
Set Support/Raft Interface to use the same filament as the supported part.

• Using a different color can leave tiny specks after support removal.

• Matching colors makes cleanup faster and cleaner.

• It slows prints slightly, but it’s worth it.

4. Use Arachne wall generator

• Classic works fine for large areas, but Arachne handles small details much better.

• Classic can sometimes leave visible transition lines on curved surfaces (like where walls blend into top layers).

• I just leave everything set to Arachne.

5. First layer: keep it rectilinear for small parts
For stripes or small pieces:

• Concentric seems logical but often pops off the plate.

• Rectilinear sticks better.

• I use brim ears where needed instead of full brims to save cleanup time.

6. Run higher flushing volumes

• I usually set flushing volume high, sometimes maxing it out (~900).

• Multiplier is typically 1.5–2.0 (current slicer behavior).

• Single helmet? Leave it high — wasted filament beats wasted prints.

• Multiple helmets? Step it down in ~100 increments until quality drops, then bump back up slightly.

7. Be cautious with silk PLA

• Mixing silk with regular PLA can cause visible sheen changes at logo heights.

• Silk shells are also more brittle — the only time I’ve broken a helmet during support removal was with silk.

• I generally avoid silk for the main shell.

8. Don’t rely on the paint tool
It’s useful sometimes, but it shouldn’t be your default.

• Switch from Global → Objects.

• Assign colors by selecting objects directly (right-click or number keys).

• You can also click objects directly on the helmet once they’re selected in the list — huge time saver.

• It’s a little quirky, but Undo is your friend.

• Use Paint only when a model isn’t split or for custom tweaks.