Coffee Cup Project

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

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

    Drag Me to Hell download

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. Mission to Mars video

    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.

• 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.