ROCKLER 67507 Titanium Comfort Ring Cores Instructions

: June 8, 2024
: ROCKLER

Table of Contents

GENERAL SAFETY WARNINGS
PRODUCT SPECIFIC SAFETY WARNINGS
SUPPLIES NEEDED
Documents / Resources

Ring Turning
Effective September 2022
Titanium Comfort Ring Cores
Instructions

ROCKLER 67507 Titanium Comfort Ring Cores

Review full instructions prior to use for important safety information.
Always check Rockler.com to confirm that you are using the most recent version of instructions for your product.

GENERAL SAFETY WARNINGS

This product is designed only for specific applications as defined in the instructions and should not be modified or used for any manner not described in these instructions. Use only recommended accessories. Before turning a Ring Core: READ, UNDERSTAND and FOLLOW ALL INSTRUCTIONS AND SAFETY WARNINGS. KEEP THESE INSTRUCTIONS READILY AVAILABLE FOR FUTURE REFERENCE.

Always confirm that you are using the most recent version of the instructions and safety warnings for your product (see the instructions link on the product page at Rockler.com).
Before using another tool with this product, always read, understand and follow the instructions and safety warnings in the owner’s manual for that tool. If you do not have the owner’s manual, obtain one from the tool’s manufacturer before using it with this product.
Before using any chemical with this product, always read, understand and follow all safety warnings and guidelines in the manufacturer’s Safety Data Sheet (SDS; formerly called “MSDS”), especially regarding:
- How to safely use the chemical, including potential hazards and recommended first aid measures;
- Personal safety equipment required to safely use the chemical (e.g. gloves, eye protection, mask/respirator, etc.)
- Proper and safe handling, storage and disposal of the chemical.
Before using this product, review and verify that all tools to be used with it have safety equipment installed and are in proper working order as defined by the tool’s owner’s manual.
Do not use this product until you have read and are confident you understand:
- Product Specific Safety Warnings (p. 3);
- Assemble the Bottom Section of the Cabinet (pp. 3 – 7);
- Assemble the Dust Bucket (pp. 8 – 10);
- Mount the Dust Bucket (pp. 10 – 11);
- Installing Safety Power Tool Switch Bracket (pp. 11 – 13)
- Attaching the Cabinet Top and Doors (pp. 13 – 14);
- Attaching a Router Tabletop (pp 14 – 15).
The user assumes all risk and responsibility for the proper and safe use of this product and for ensuring product suitability for the intended application.
It is the sole responsibility of the purchaser of this product to ensure that anyone you allow to use this product reads and complies with all instructions and safety precautions outlined in this manual prior to use.
Follow all standard shop safety practices, including:
- Keep children and bystanders away from the tool operating area;
- Do NOT use power tools in explosive environments, or in the presence of flammable liquids, fumes or dust;
- TURN OFF AND UNPLUG all power tools BEFORE making any adjustments or changing accessories;
- Remain alert and use good judgment. Do not use this product if you are in any way impaired by medications, alcohol, drugs or fatigue;
- Keep your work area well lit and clean;
- Dress appropriately. Secure loose clothing, remove all jewelry and tie up long hair before using this product;
- ALWAYS wear safety glasses, hearing protection and respiratory protection that complies with NIOSH/OSHA/ANSI safety standards;
- Use dust collection tools and dust face masks to reduce exposure to dust;
- Use safety equipment such as featherboards, push sticks and push blocks, etc., when appropriate;
- Maintain proper footing at all times and do not overreach;
- Do NOT force woodworking tools.
These warnings and instructions do NOT represent the total of all information available regarding tool safety, use and technique. Always seek out opportunities to learn more and improve your skills and knowledge.

Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.
DANGER Danger indicates a hazardous situation that, if not avoided, will result in death or serious injury.
WARNING Warning indicates a hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION Caution indicates a hazardous situation that, if not avoided, may result in minor or moderate injury or property damage.
NOTICE Notice indicates important or helpful information and/or user tips.

PRODUCT SPECIFIC SAFETY WARNINGS

WARNING

TURN OFF AND DISCONNECT POWER to all tools BEFORE making any adjustments or changing accessories.
Wear proper apparel and contain long hair to avoid entanglement. Do NOT wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that might get caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.
Always wear OSHA-approved safety glasses and a face shield. Also use a dust mask if cutting, grinding or sanding operations are dusty. Everyday glasses only have
impact-resistant lenses; they are NOT safety glasses.
Make sure your workpiece is fully secured on the lathe. An inadequately secured workpiece could come off the lathe at high velocity, potentially causing serious injury.

CAUTION

When working with epoxy, follow the safety guidelines and instructions from the epoxy manufacturer. Make sure the area is well-ventilated and wear nitrile gloves and any other personal protective equipment recommended by the epoxy manufacturer. Use an applicator and avoid contact with skin or clothing.

ROCKLER 67507 Titanium Comfort Ring Cores - Fig1

SUPPLIES NEEDED

Ring blank — approximately 1¼”-1½” round or square stock
Digital calipers
Desired finish
Four-jaw chuck for your lathe
Drill or Forstner bit (smaller than the ring core’s outside diameter)
Ring turning bushings or mandrel
Ring core
Sandpaper (180 through 600 grit)
Lathe
Lathe drill chuck
Epoxy for gluing the blank to the core

Select a Ring Blank
Choose a blank that is 1¼” – 1½” round or square and thicker than the ring core. Stabilized ring blanks are recommended, as exposure to water is the leading cause of ring failure.
A two-part ring core will require separating. Use a flat bar of a softer metal such as brass or copper by fitting the bar in the channel of the ring core and carefully twist it side to side. Be extra careful not to damage the outside of the ring core when twisting side to side.
Mount and Rough Turn the Ring Blank

Securely mount a roughly 2″ x 2″ waste block in a four-jaw chuck on your lathe.
Mark the center of the ring blank by drawing diagonal lines across the face. Then apply double-sided turner’s tape to the back of the blank.
Remove the backing from the double-sided tape on the ring blank. Mount a live center in your lathe’s tailstock and move the tailstock within reach of the waste block. Lock down the tailstock.
Position the ring blank so that the tip of the live center in the tailstock is on the intersection of the diagonal lines you drew across the ring blank.
Keeping the ring blank centered on the tip of the live center, advance the live center until the ring blank is pressed against the waste block. This should center the blank on the waste block. Lock the live center in position for a few minutes as it applies pressure to help set the double-sided tape’s bond. Apply pressure by hand, too, if necessary. Fig. 1.
Once the ring blank is firmly attached to the waste block, true up the face of the blank and rough turn it round, making sure to leave plenty of material for final shaping later.

Form the Hole for the Ring Core

Set your digital calipers to the outside diameter of your ring core.
Release the tailstock; remove the live center and replace it with a lathe drill chuck. Chuck a drill or Forstner bit with a diameter that’s about half the outside diameter of your ring core in the lathe drill chuck.
Carefully drill a starter hole all the way through the ring blank and partway into the waste block. Fig. 2.
Use a narrow square scraper or bedan tool to carefully increase the size of the hole in small increments. Keep the tool 90° to the face of the blank, and stop to check the hole diameter frequently with the digital calipers and the ring core itself. It’s best to “sneak up” on the final diameter to avoid having an oversize hole and sloppy fit with the core. The core should fit exactly, not too snug or too loose. Fig. 3. NOTICE Achieving the correct width on your ring blank is critical when working with a two-part ring core. The final width of the blank must EXACTLY match the width of the ring core’s channel when the halves are assembled.
Once you achieve the correct hole diameter, set the calipers to the width of your ring core. Use the calipers to transfer that measurement to the edge of the ring blank. Extend the mark around the blank. Fig. 4.
Use a parting tool to cut the marked section of the ring blank away from the rest of the blank. Go slowly, and make sure to catch the piece when it comes free from the blank.

Glue Up the Parts

Wipe metal ring cores with denatured alcohol to remove any oil or debris.
Mix and apply epoxy to the inside of the ring blank, coating the entire interior diameter.
One-Piece Ring Core: Press the ring core into the ring blank, making sure that the edges are flush. Wipe away any squeeze-out before the epoxy hardens.
Two-Piece Ring Core: Gently press the two pieces of the ring core into the ring blank until they fit together and the edges of the blank are tight to the edges of the core’s channel. Wipe away any squeeze-out before the epoxy hardens.
Allow the epoxy to cure as directed in the product documentation.
If any epoxy squeeze-out dried on the inside of the ring core, carefully use a knife blade to remove it before mounting the ring for final turning. This will help ensure that the ring runs true at the lathe.

Final Turning and Finishing

Mount the ring securely on the lathe, using the correct size of Ring Bushings on a pen-turning mandrel or the correct Mild Steel Ring Mandrel or Stainless Steel Ring Mandrel.
Turn the blank to final desired shape and thickness, making sure that the edges of the ring blank are flush with the ring core. Take care not to touch the core with your turning tools.
Sand the blank through at least 600 grit. Wipe the sanded blank with denatured alcohol to remove residual dust. Fig. 5 and 6.
Apply the desired finish to the blank. Cyanoacrylate (CA) is a popular waterproof finish. Build up a number of thin coats.
Polish the ring to the desired sheen, using wax or plastic polish (if you’ve used a stabilized blank or CA finish).
Remove the ring from the mandrel or bushings and polish the interior with a metal polish or buffer on a rotary tool or lathe.

ROCKLER 67507 Titanium Comfort Ring Cores - Fig5 |
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Distributed by Rockler Companies, Inc.
4365 Willow Dr. Medina, MN 55340
67507
Rev 09/22
1-800-279-4441
www.rockler.com

Documents / Resources

| ROCKLER 67507 Titanium Comfort Ring Cores [pdf] Instructions
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