simple machines are the
WEDGE
WHELL AND AXIL
PULLY
SCREW
INCLINED PLANE
AND LEVERS
there is a first class wedgethis is the most common it gives equal force aplyed to each end of the lever
the second class this one makes it harder to use but gives more distance traveled like a switch
The third class is like a pair of twesers.
To put to simple machines to gether you can weld them together or glue them together.
http://www.google.com/url?sa=i&rct=j&q=simple%20machine%20levers&source=images&cd=&cad=rja&docid=jIaGVZk-nHIOnM&tbnid=gS9c8Vi1SU7NJM:&ved=0CAQQjB0&url=http%3A%2F%2Fwww.qldscienceteachers.com%2Fjunior-science%2Fphysics%2Fsimple-machines&ei=v3hdUvDVOImE9QT9iIHYAQ&bvm=bv.53899372,d.eWU&psig=AFQjCNEOglVOVZjiq7DFmcYeH3NUpvLxjw&ust=1381943840085772
http://www.google.com/url?sa=i&rct=j&q=pully&source=images&cd=&cad=rja&docid=vRRxitHC7_rzpM&tbnid=pwdS2B3pBoDvtM:&ved=0CAQQjB0&url=http%3A%2F%2Frparmanik.wordpress.com%2F2008%2F07%2F29%2Fhoist-design-procedure-for-eot-crane%2F&ei=hHpdUu2rKIbQ8QTooICgDw&bvm=bv.53899372,d.eWU&psig=AFQjCNGFKti85BBdDjUnxP7YScmq-_Fe_w&ust=1381944317007863
