Coffee Cup Project

Posted on July 27, 2007

The coffee cup is done and represents my first serious attempt at a hybrid project.

Mandrel blankMandrelThreadingMandrel w threadMandrel mountedSpunCupOutsideInsideMount insertPolish InsertGlue insertInsert insertInsert 2ClampSandingGlue handle

Narrative in order photo’s

  1. Hard Maple blank

  2. Blank turned on stubby

  3. Mandrel threaded for Jet

  4. Finished threads with relief

  5. Mandrel mounted on Jet

  6. Insert spun on Jet

  7. Cup housing turned and hollowed on Stuby (laminated Brazilian cherry and box elder)

  8. Outside of cup parts

  9. Inside of cup parts (handle is hand carved from box elder)

  10. Insert aligned an mounted on stubby

  11. Insert polished on stubby

  12. Silicon adhesive on insert lip

  13. Assembly of insert

  14. Insert fully engaged

  15. Insert clamped overnight

  16. Cup handle sanded to match contour of cup

  17. Cup handle epoxied with high tech clamp

  18. Completed Hybrid Cup

This project was 6-12 months in the making. It required many new learning’s:

  • Research metal spinning
  • Made my own spinning tools
  • Adapted my Jet lathe to spinning
  • Learn to make mandrels
  • Learn to spin and insert with a lip (I barely got one insert to work)
  • Cut my finger to the bone and its tenon by being careless at the band saw. 
  • Turned a cup hollow form
  • Carved a handle
  • Adhesive and finish selection
  • Now I’m drinking coffee and hoping it is practical.
I still have to solve the following:
  • What is the best thickness of aluminum material, I think .040.
  • The grain in the mandrel still transfers to the inner walls.
  • My usage will tell me if the expoxy’d handle and silicon’d insert are the right adhesives.

» Filed Under Metal Spinning

Comments

One Response to “Coffee Cup Project”

  1. Woodturning Newsletter #2 < SmartFlix.com on August 20th, 2008 5:20 pm

    [...] and metalspinning to create a wooden coffee cup with a aluminum interior. Amazing stuff! http://www.turnedoutright.com/2007/07/27/cofee-cup-project/ For those who don’t know, metalspinning is the craft of chucking a wooden “male” [...]

Leave a Reply