Woodturning – A Search For The Perfect Egg
For years, I have searched for the perfect egg. Years ago, I thought I had the answer. An article in a club newsletter gave a formula where the length was 1.29 times the diameter. However, my eggs seems short. So, I researched where that formula came from. I found where. It comes from people using mechanical drawing to draw the “perfect” egg. However, I realized that their “perfect” came from what they could draw.
A trip to the refrigerator for a flat of large free-range eggs and my caliper showed that nothing in that flat complied with that ratio. In reality, my average was closer to 1.39 times the diameter with a lot of variation. I went another step and figured out how to stretch my formula. It was all a waste of time.
My process now is to:
- Turn a cylinder and measure the diameter.
- Mark the big end of the egg.
- Mark one half the diameter to indicate the transition from big end to small end.
- Calculate 1.39 times the diameter. -This is the longest I will turn but shorter is okay too.
- Turn the big end using an adapted octagon method.
- Wing it (chicken wing?) for the small end.
This leaves the small end with a rough nub on the end. The question now is how to finish the end. Three choices include:
- Sand the rough end preferably with a sanding pad.
- Use a doughnut chuck to hold the egg to the lathe.
- Use a special egg chuck such as in my video
Woodturn Simple Egg Chuck From PVC Fitting
I am ready for spring.
Enjoy!
Thanks Alan, I’ve been putting off doing eggs because on trial runs I never seemed to get the proportions right. Your video helped me to have a better framework for sorting that out. I also liked your glue-up, which I will try because I have lots of scraps waiting for the “right” project to come along. Happy Spring!!!
Well, I also have plenty of odd looking eggs.
Thank you
Alan