Zebra ZT410 Adjustable Roll Holder (Ø 3.9–12.2 cm)

This adjustable roll holder was designed for users who want to use label rolls with a smaller inner core, which usually don’t fit on the original Zebra ZT410 holder because its shaft is too wide.

With this accessory, you can easily mount rolls with a minimum inner core of Ø 3.9 cm and a maximum roll width of 12.2 cm — perfect for shipping or industrial labels with small cores.
It’s made for those who need a simple “Plug & Play” modification: just remove the stock holder and install this one — no complicated adjustments or tools required.

The design is optimized for quick and clean printing, requires minimal supports, and provides a strong, stable, and long-lasting structure for everyday use.

⚙️ Main Features

• Compatible with rolls featuring an inner core from Ø 3.9 cm
• Maximum roll width: 12.2 cm
• Strong and stable structure
• Easy-to-print design (minimal supports needed)
• Adjustable thumb-screw system to adapt the inner diameter
• Direct mounting on the Zebra ZT410 printer chassis

🧱 Material Recommendations

To ensure long-term strength and reliability:

• Use durable materials such as PETG, PETG-CF, ASA, ASA-CF, or reinforced ABS
• Avoid fragile materials like PLA or similar blends
• Make sure your filament is completely dry before printing to prevent weak layers
• Recommended settings: 30–40 % infill, 4 wall lines, and gyroid infill pattern for improved strength

🔩 Assembly Requirements

• 4 × M4 × 10 mm screws:
  • 3 → for attaching the holder to the chassis
  • 1 → for the adjustable screw system
• 1 × washer Ø 8 mm for the adjustment screw

🛠️ Installation Tips

1. Carefully remove the original roll holder and clean the mounting surface.
2. Check that your printed part has no weak or under-extruded layers.
3. Install the adjustable screw first, along with the washer.
   • Ensure the screw moves not too loose and not too tight, so the roll spins freely without changing its diameter during use.
   • Avoid overtightening to prevent damaging the print.
4. Attach the holder to the chassis using the three M4 × 10 mm screws.
   • Do not use longer screws to avoid piercing or damaging the frame.
   • Tighten firmly, but not excessively.
5. Once installed, mount your roll and adjust the thumb screw for a stable fit.

💡 Tip:
Before installation, ensure the material is fully dry and that the printed layers are well bonded — this will maximize strength and prevent cracking during use.

This is a small contribution I’m sharing because I had several label rolls with small inner cores that couldn’t be used on my Zebra ZT410.
I hope this design helps others make better use of their rolls as well.