This shows the steps to mount and turn the irregular 3 fork mesquite tree trunk section. It weighed 43 # when first mounted, 32" after turning outside, and now just a little under 5# as finished.
1. shows drilling with 2 3/4" Forstner bit for 2 1/2" faceplate used with extension on drive. Bottom was shimmed up to get correct (?) orientation.
2/3. shows the 8"+ radius of outer trunk
4. shows outside turned and tenon on bottom for chuck.
5. shows chunk mounted in chuck on chuck/faceplate stand prior to installing on drive. Live center used in tailstock for all major interior turning.
I'll add additional pictures of interior work.