My plastic extrusion

Hi I've made this little extrusion as a prototype: http://www.preciousplastic.com/little-extrusion/ It's for my graduation project at my school...(still in progress) However, This is small..I want to make it big! Does any of you guys have an idea where I can get a serious screw for inside the plastic extrusion? Are where to get them second hand? New price is around $2500...way to much for me...

Topic by davehakkens   |  last reply