Coffee Cup Project
Posted on July 27, 2007
The coffee cup is done and represents my first serious attempt at a hybrid project.
Narrative in order photo’s
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Hard Maple blank
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Blank turned on stubby
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Mandrel threaded for Jet
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Finished threads with relief
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Mandrel mounted on Jet
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Insert spun on Jet
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Cup housing turned and hollowed on Stuby (laminated Brazilian cherry and box elder)
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Outside of cup parts
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Inside of cup parts (handle is hand carved from box elder)
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Insert aligned an mounted on stubby
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Insert polished on stubby
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Silicon adhesive on insert lip
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Assembly of insert
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Insert fully engaged
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Insert clamped overnight
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Cup handle sanded to match contour of cup
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Cup handle epoxied with high tech clamp
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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.
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[...] 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” [...]