Fig. 3

CAD model of Seedling pick-up mechanism (a,b) CAD model and (c) fabricated model. (1) pick-up needles, (2) spring (3) push rod, (4) guiding bush, (5) connecting link, (6) output link, (7) input link, (8) toggle spring, (9) pivot pin, (10) input link stopper, 11. output link stopper, 12. slotted link, 13. mounting base, 14. pendulum arm, 15. swinging link, and 16. main frame.