Minimum Viable Product +

Ideal Senario +

Current Progress +

CNC routed the stair

wired and programmed the motor

seat switch and moisture sensor calibrated

Motor function +

I realised i had to rework the chair pulley mechanism

so for now i programmed the motor to react the way i want

Summary +

Motor moves 20 steps anticlockwise pauses for 10 seconds and repeats

This is a proxy to say it takes 20 turns to open

The cushion serves as a kill switch that stops the motion

this is a safety proxy to prevent movement if someone sits

the moisture reader serves as a proxy for rain

when triggered it reverses the current steps taken

eg. if the motor moves 13 steps and the seat gets wet

it moves back 13 steps - a proxy to stay closed if it rains.

the seat switch is a master override function

eg. if the chair is open and someone sits in the rain

it will not close

Code +

Hardware

Did not work as planned. need to revise

made a slideing mechanism here that pulls the string

front ends helps close the chair, back end opens it

Process

CNC routed the wood pieces at Gund using the Zünd

piece was a scrap sheet i found

part of my narrative might be to have more efficient design with minimal waste parts

unfortunately wood back piece broke

think it was too thick, Nathan gave me future suggestions

for now i used chipboard as a proxy

next steps i might consider a rolling pulley sysem

Maybe the bands work like a blind roller

when fully unrolled the chair is open

when fully rolled its closed

this would be the reverse for the back

i also realized i need to make custom pulleys

current ones in shop do not have enough width

Current gear system

needs to be reworked