PrecisionFlex 81 3-Jaw Chuck Rotary Attachment for Laser Engraving

Rotary Attachment Accessories

PrecisionFlex 81 3-Jaw Chuck Rotary Attachment for Laser Engraving

The PrecisionFlex 81 is a 3-jaw chuck accessory designed to help secure tumblers during rotary laser engraving. Sized for approximately 81 mm (3.19") tumbler openings, it is an excellent option for personalizing select 20 oz YETI, Polar Camel, and similarly sized insulated tumblers.

Manufactured in-house using 3D-printed PLA filament, the PrecisionFlex 81 features a flexible three-jaw design that accommodates slight variations in tumbler openings while helping protect the interior rim from scratches. An included bottom stabilizer provides additional support to help maintain proper positioning throughout the engraving process.

Key Features

• Designed for tumbler openings measuring approximately 81 mm in diameter
• Flexible three-jaw construction accommodates slightly larger openings
• Suitable for select 20 oz YETI, Polar Camel, and similarly sized insulated tumblers
• Helps reduce scratching and marking along the interior lip of compatible tumblers
• Includes a bottom stabilizer for additional workpiece support
• 3D printed in-house using PLA filament
• Provides a practical accessory for expanding your existing rotary engraving setup
• Available in assorted colors, selected at random

Product Specifications

Product Type	3-Jaw Chuck Rotary Accessory
Model	PrecisionFlex 81
Nominal Opening Diameter	81 mm (Approximately 3.19")
Size Flexibility	Accommodates Slightly Larger Openings
Material	PLA Filament
Manufacturing Method	3D Printed In-House
Jaw Configuration	Flexible Three-Jaw Design
Typical Application	Select 20 oz Insulated Tumblers
Bottom Stabilizer	Included
Color	Random / Varies by Production
Application	Rotary Laser Engraving of Compatible Drinkware
Quantity	1 PrecisionFlex 81 with Bottom Stabilizer

How the PrecisionFlex 81 Works

Rotary laser engraving requires the workpiece to remain properly positioned while rotating beneath the laser. Insulated tumblers can be challenging to secure, particularly when their shape or opening prevents a conventional rotary attachment from providing adequate support.

The PrecisionFlex 81 uses a flexible three-jaw design to help grip compatible tumbler openings measuring approximately 81 mm. Its PLA construction provides a contact surface designed to reduce the risk of scratching or marking the inside lip of the tumbler.

The included bottom stabilizer provides additional support for the opposite end of the workpiece. Together, these components help keep compatible tumblers properly positioned during rotary engraving.

Designed for 81 mm Tumbler Openings

The PrecisionFlex 81 is intended for drinkware openings measuring approximately 81 mm (3.19"), including select 20 oz YETI and Polar Camel tumblers and other models with similar inside opening diameters.

Its flexible design allows limited adjustment for slightly larger openings. However, tumbler dimensions can vary between manufacturers and product styles. Always measure the actual inside diameter of the opening rather than relying on the tumbler's advertised capacity.

Confirm Compatibility Before Ordering

Before selecting the PrecisionFlex 81 for your rotary engraving setup, confirm the following:

• Your tumbler opening measures approximately 81 mm in diameter
• The three-jaw accessory can fit securely without excessive force
• Your existing rotary attachment can accommodate the PrecisionFlex accessory
• The tumbler and bottom stabilizer can be positioned correctly within your machine
• Your laser machine has sufficient clearance and focusing range for the workpiece
• The workpiece can rotate freely without contacting surrounding components

The PrecisionFlex 81 is an accessory for an existing compatible rotary engraving system and is not a complete motorized rotary attachment. Compatibility with every 20 oz tumbler or rotary model is not guaranteed.

Installation & Safety

Select a compatible tumbler and position the PrecisionFlex 81 according to your rotary setup's mounting requirements. Ensure the accessory fits securely inside the tumbler opening and position the bottom stabilizer to provide appropriate support before engraving.

Check that the workpiece rotates freely and remains secure throughout a full rotation. Do not force the accessory into an undersized opening. Keep PLA components away from direct laser exposure and excessive heat, and follow all applicable laser machine and rotary operating instructions.