20/11/2019.
I got one idea, maybe i can make something is folding, such as folding sofa or chair, i search some picture from Google, and draw the plan, but i think this plan is impractical, very difficult to real that, because i need lots of steel tube, this is truly hard about the student who stay in the school want to finish the project. That really need the professional factory to complete it. So i given up the first plan.
Karol’s 