Today's contruction class

i handed in the stairs homework

last night i make it all by myself

screwing by hand

so painful hahaha

kind of proud of my presentation skill though 

i said 

for the side, it shows squares that present a "reverse stairs"

and for the platforms

the steps part

i make it 1, 2, 1, 2 pattern

make people have a rhythm to walk 

as well as causious and pay attention to the stairs

(In fact is just because i picked only 2 pieces of useless woods and cut it into 4

with 3 stairs and i dont want to waste one single pieces of it)

the end part is not connected to the ground

using "calculation" (not calculated at all) to make it transit the force to the wall

making it stable even when people are on the third step

everything is just an accident 

luckily it works

in fact it is possible if I really stick it to the wall and make a solid foundation to it

but in this small project i wont need to , and i cant do so

just feel quite satisfied with this one night work