Mechanical Parts Free 3D model

i'll add the upcomming things we'll do on this project here i will list the folders in the project in chronological order and tell how much time we had to do it, and what exactly we had to do

1 tiny race car on catia (2 month) : from several physical limitations (space for engine, battery, overall max size, ect...) we had to do a wooden car from a side view and top view drawing we also had to do. there is 2 vers because the first was while learning catia, and the 2nd what we had to give (the full model are the "MY_e-RACECAR_PROJECT" files)

2 valve (3h) : had to reproduce on solidworks the "wheel" and the cap from a technical drawing

3 robot hand (6h) : we had all the pieces except what hold the fingers and "base", so we had to do this piece from the dimmensions of the other, then assemble all of it and do an animation of it operating

4 fixed support of 'pieces holder' (idk how it is called in english) (3h) : we had to do the top piece of this http://goo.gl/uigcPL but without having pics of it, just knowing that the 2 "holding plates" should match and make the metal bar fit, and have it as light as possible but still strong enough in plastic. and then do a static simulation

5 duct tape dispenser (9h) : we had to do something that can hold the tape ring when it is full and empty + that can cut it in some ways + to have a design in "characters" "animals" or "transportation" themes. first with modeling clay then on solidworks, and if the dispenser is good enough it might get 3D printed here is the technical drawing : http://goo.gl/bqTX9G