Turning a simple task chair into an ergonomic chair
I have an issue finding a nice ergonomic chair for my desk at home. I'm currently using a task chair that looks like this mildly crude cartoon (blue chair with fuscia burst).
I was thinking of disassembling it, using the back rest and the seat to make an ergonomic chair, much like this one (the kneeler with the chappy gent on it).
Or I could save myself some trouble from building the frame from scratch and make a chair like this (the black office chair-esque kneeler).
So, any tips? I've been turning it around in my head for months and any suggestions would be greatly appreciated. I guess I don't want blood clots in my calves. Thanks!