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Jerry Urban, LuLu Creations

Sierra Pen

Materials

  • 7mm pen mandrel
  • 2-pc bushing set
  • Drill bit – 27/64"
  • Barrel trimming sleeve
  • Universal trimming kit
  • 2-part epoxy glue or insta-cure glue
Diagram of pen - parts list

Instructions

1. Preparing the blank:

• Prepare a master blank of at least 5/8" square. Cut to the length of the brass tube (add 1/16" for trimming)

• Drill a 27/64" center hole through the blank.

NOTE: Sand the tube with 220 grit abrasive for better adhesion.

  • Glue the tube in the blank.
  • Spread the glue over the tube; insert the tube into the blank with a twisting motion to spread the glue evenly.
  • Center the tube inside the blank.
  • Square the ends of the blank using a 7mm barrel trimmer with the adapter sleeve.
  • Mount the sleeve over the shank.
  • Trim the blank down flush with the brass tube.

 

2. Turning the blank: 

 

  • Mount 7mm spacer bushings on the mandrel, followed by the tip bushing; wide end first.
  • Insert the blank.
  • Follow with the cap bushing, narrow end first.
  • Mount spacer bushing to fill the space to the threads on the mandrel.
  • Screw on the lock-nut hand tight.
  • Bring the tailstock in snug to the mandrel and tighten the lock-nut for turning.
  • Do not over-tighten the lock nut, it may damage the mandrel.
  • Turn the blank down close to the bushings.
  • Follow with abrasives until the barrel diameters are flush with the bushings.
  • Finish with your choice of polish.

 

3. Assembly:

  • NOTE: Line up finished parts according to diagram ‘C’.
  • To avoid damage to components when assembling, use vise with covered jaws
  • Press clip assembly into the barrel.
  • Thread the mechanism down (without the refill) into the large opening of the tip assembly.
  • Insert the upper cap/clip assembly over the mechanism, place the entire pen into the pen press.
  • Press in to close the gap to the center band.
  • Unscrew the upper barrel assembly, insert the refill with screw mounted into the lower end. Screw back the upper end to engage and close the gap.
  • The pen is now ready to operate; twist clockwise to open.