Quote Originally Posted by ralphzoontjens View Post
I recommend investing a bit more and going with trusted brands like Makerbot or Ultimaker
Makerbot ? Seriously, tell him to throw money out the window it'll hurt less. The OP requested a cheap do it yourself solution not an over-hyped machine that doesn't work.

I've thought about your question. Have a look at the Printrbot library : they've posted online all the chassis and build of their machines. If you start from scratch you can get inspiration there. They also made a starter kit where you have to do it all yourself : https://printrbot.com/shop/printrbot-starter-kit/