The How:

Step 1: Figure out my natural grip, pain points in the existing knife handle

Step 2: Draw sketches of possible designs 

Step 3: Make a basic model in CAD of the chosen design 

Step 4:Use Slicer in AutoCAD and lasercut from wood the model 

Step 5: Cover in clay and dry

Initially, I was going to use the Model Magic to get as close to an ergonomic grip as possible, let it dry, 3-D scan the model and use the resulting .STL file to generate the wooden frame in Slicer. The shape was too irregular, and the model was not a very good representation of a grip. There were a lot of lumps from the Model Magic not being incorporated fully, and excess material that kept getting displaced. As a result, the design was chosen from the brainstorm session instead.