I have planning make a long wooden tonearm.
I have TA Technics as apart
I split apart and i put only Pivot.
i made wooden rod for replace .
problem counter weight Technics light. and need more weight for balance.
Made counter weight from Bronze 220 mg.
Distance Pivot to spindle new TA 17"
try install to my TT not fixed and
Wooden TA on the track with cartridge MM Shure.
outsite place, DIY wooden TA 17" wiht alum stand of pivot and arm base from wood.
It's very Long TA extraordinary
. and i think this have little error track than 9"
wacth " test DIY tonearm wooden rod !&" on the track. Test2 DIY Tonearm 17"_wooden rod - YouTube
Test3 DIY wooden TA 17" - YouTube