Picture of Eccentrically Turned Wood Figure
  Eccentric or Multi-Axis woodturning, previously covered here, is a specialized form of woodturning utilizing two or more turning axis.  This requires a robust lathe (as you will be turning something with a center of gravity offset from the axis) but the tools and the techniques are the same.  
  For this project, I will be using AutoDesk Inventor to design and render my part before touching chisel to wood.  This will allow for an easy visualization of the process, as eccentric turning can be counter-intuitive.  Once refined, the 2D profiles rendered in Inventor can be cut or printed and used as a template for turning the final piece.  
  This piece is an abstract human figure, which could be a model for a statuette or a hood ornament.  One particularly unique application for eccentric turnings are fancy sweeping furniture legs.  I do my woodturning using the lathe at TechShop.
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Step 1: Tools

Picture of Tools
While a faceplate is a smart choice for most eccentric woodturning, I will only be using the basic heads for this piece.  Other standard tools include:
  •   A large gouge chisel
  •   A paring chisel
  •   Sandpaper
  •   A lathe

Step 2: Design the Profiles

Picture of Design the Profiles
edit 1x.jpg
edit 2.jpg
edit 2x.jpg
 My part is to be turned on two axis, so I have two profiles to design.  The Inventor sketch mode features intuitive splines for rendering flowing curves.  The axis for each profile is a straight line.  To render a separate revolution from each profile, the profiles must exist as separate sketches.  Both are visible at the same time, on the the same plane, to show how the two profiles will intersect with each other.*  
  * note: you do not need to draw your profiles on the same plane, I am doing that here because I want my final part to be symmetrical.

Step 3: Revolution no. 1

Picture of Revolution no. 1
Revolution 1x.jpg
Using the revolve function in the modeling menu, select the profiles and the axis of the first sketch.  This is what your actual turning should look like by Step 7.
Samw2 years ago
This is a great tip for amateur turners. I am wondering, would it be better to title it "Asymmetrically Turned Wood Figure" ?
ringai2 years ago
I sure wish there was a TechShop near me.
cramming2 years ago
Really nice job. :)