http://www.dendoff.com/movies/dendoff-100k.asf  : high quality

http://www.dendoff.com/movies/dendoff-56k.asf : Low quality

 

http://www.efunda.com/designstandards/springs/spring_introduction.cfm

 
http://www.srl.gatech.edu/education/ME3110/design-reports/RSVP/DR4/catalog/spring.htm

 

http://www.engineerstoolbox.com/doc/etb/mod/stat1/spring/spring_help.html

 

http://www.engin.umich.edu/labs/csdl/ME350/springs/

 

http://www.acewire.com

 

http://www.katosprings.com/main.html

 

  در مورد طراحي فنر Jennessee at Martin  جزوه درس دانشگاه