howard johnson linear motor version

Played with a rotary version and deciided to get more accurate and verify linear before more time is spent.
This is the beginnings, - magnet areas have been made but they are 'ferrite' ceramic - purchased from harbor freight, 1 7/8" x 3/8" thick .

If linear concept verifies then you can progress to rotary. The idea is you place the magnets in the slots and put metal plate (highly permeable magnetic material) underneath, N faces up , S pole is touching plate.
(Picture 1 is of a later rota