Backhoe design

grabcad

This is my first so big design i hope it is not so bad ( working in US units it is difficult) I was trying to use as much as possible stock elements, the most of the parts can be assemble by screws not welding, but unfortunatly my computer dont allow me to make screws connections (it is just too slow- too much parts already). I was trying to make whole design simple without complex elements. I have make a lot of mistakes with this design but that was the idea make whole project and learn ( i am still studing) , please feel free to comment Ps biggest what i learn !!dont be lazy!!, and next time maybe start modelind soner then 24 hours before dead line :), making this model took my about 15 hours without brake and few hours before about 4 so total 19 hours