TYPES OF MECHANISMS:
These are other classmates´ links of their blog that show other types of mechanisms:
www.hellomynameisrafa.blogspot.com.es
Number 2 has worked in screw and nut, wedge and belt and pulley. www.tecnology2esopaulamaciascampos.blogspot.com.es
Number 3 has worked in gears, rack and pinion and wedge
www.srtaelo.blogspot.com.es