Piano style stool uses an 18" disc blade for stability. Piece of black pipe is welded to the base and a notch is cut partially through the pipe about 6" down....this will be used to locate and secure nuts inside the pedestal.
One nut is welded to the base of the All Thread to act as a stop, then a second nut is welded to a washer, but allowed to spin freely on the threaded shaft.
This is then inserted into the pedestal where the washer then lines up with the previously cut slot...then welded.
Top of pedestal is then capped and a mounting plate is installed for the wooden seat. Threaded shaft allows 6-8" of height adjustment.
Finished seat assembly.