carbatec Tree Ornament Christmas Decoration Kits Instructions

Tree Ornament Christmas Decoration Kits
Instructions

Christmas Tree
Decoration Kits
INSTRUCTIONS

REQUIRED SUPPLIES

• 7 mm drill bit, PK-7MM

• Blank: 19.1 mm square x 64 mm long (3/4” square x 2 1/2” long)

• Pen mandrel

• Glue (CA Super Glue or epoxy)

• Drill or drill press

• Barrel trimmer or disc sander

• Pen press or clamp

• Bushings:
  BUSH-ORNA7 for CT-ORNA7
  BUSH-ORNA295 for CT-ORNA295
  BUSH-ORNA298 for CT-ORNA298

• Sandpaper

• Finish

• Eye and ear protection

CUTTING AND DRILLING THE BLANK

1. Cut the blank 6.4 mm (1/4″) longer than the brass tube.
2. Using a drill press with the blank secured in a vise or clamp, drill a hole through the center of the blank stopping 3.2 mm (1/8”) short of the bit exiting the blank. Drill at 2,000–3,000 rpm backing the drill bit partially out of the hole  every 10-15 mm to clear chips. When using larger bits or drilling plastics drill at 250–500 rpm.
3. Trim away a small amount of wood from the end of the blank to expose the hole.
   The blank should be slightly longer than the brass tube. This technique prevents cracking caused when the bit exits the blank.

GLUING THE BRASS TUBE INTO THE BLANK

1. Lightly scuff the exterior of the brass tube with 220 grit sandpaper to prepare it for gluing.
2. For a fast bond, use thick Cyanoacrylate adhesive (Super Glue) or 5-minute epoxy. For additional working time and more thorough bond, use expanding polyurethane (Timebound Polyurethane Glue). Apply a thin layer of glue to the  tube and inside the wood blank. Insert the tube into the blank rotating it as you go to spread the glue evenly. Position the brass tube in the blank so that the wood extends beyond the tube on both ends to allow for trimming.

TRIMMING /TRUING THE BLANK

Square the ends of the wood blank with the tube using either a barrel trimmer or disc sander. This step is critical for the key ring components to fit together properly. Do not trim the brass tube as this may result in an improper fit when  the project is assembled.

SETTING UP AND TURNING THE MANDREL

1. Place the bushings and blank (not shown) on the pen mandrel, using a wooden spacer for proper fit.
2. Advance a 60˚ revolving cone center into the dimpled end of the mandrel and tighten using light pressure. Do not over tighten the tailstock or mandrel nut as this may cause the mandrel to flex resulting in off-center barrels.
3. Turn the blank to the desired shape leaving the blank slightly larger than the bushings.
4. Sand the blank using progressively finer grits of sandpaper, then apply your favorite finish.

ASSEMBLING THE PARTS

1. Lay out the parts as shown in Figure 1. Use a vise or clamp with wood or plastic jaws to prevent damaging parts during assembly.
2. Press the decoration tip into one end of the brass tube.
3. Press the decoration cap into the other end of the brass tube.

Carnatic Pty Ltd
E info@carbatec.com.au AU 1800 658 111 NZ 0800 444 329
128 Ingles ton Road, Wakerley, Queensland Australia 4154
ABN 84 010 706 242

Documents / Resources

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