this post was submitted on 27 Jan 2024
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RE: office chairs…. You could spend a shit ton of money or…. You could totes cheap out and replace them every 4-6 months.
I WFH and use my office for other things as well. My ass is in that chair 60-70 hours a week, in a weird position that’s comfy to me but no chair is designed to support.
The padding isn’t the issue. I can always throw a pillow too thin to sleep on under my butt. The hydraulic cylinder is the issue.
Give me a hard chair that stays at a constant fucking height with no effort any day. Padding I can fix, but if I’m constantly at weird and non ergonomic levels with little control that’s a real problem.
Context, I’m actively typing much of my day on the kb directly in front of me, and jumping back to the keyboard at around 45 degrees to the left any chance I get.
If you have a metal cut-off saw, and you only like your chair at or consistently above a specific height, you can force this minimum height despite that stupid hydraulic cylinder. This technique also helps once that cylinder breaks down after 12-24 months and you get this constant sinking feeling that puts your knees up under your chin within 15 minutes of any height adjustment.
Measure the outer diameter of the largest part of your chair’s central shaft. Measure the perfect minimum height between the bottom of the chair (where the shaft emerges) and where the shaft ends down at the rollers. For example, if you always like your chair at max height, put it there (without sitting in it) and then measure that distance.
Go to your hardware store and find a piece of metal pipe, min. ½mm in thickness, ideally steel. Copper might be too soft (go at least 1mm), iron piping might be too brittle.
This pipe will have to have an inner diameter slightly larger than the shaft, and be at least as long as the ideal height distance you measured.
If you get a pre-made piece of pipe (sink drain downspout, for example) that is longer than what you need, you will need that metal cut-off saw to tailor that length to the correct amount.
Take the shaft of the chair apart. The vast majority of chairs literally just sit on that hydraulic cylinder, they don’t even click into a locked-in position much less have any fasteners. Although if you have been using it for a while you may need a rubber mallet to convince the seat to separate from that hydraulic cylinder.
Put your metal pipe over the shaft, put the seat back onto the gas cylinder.
Ergo, you now have a height-defined chair that won’t descend beyond a defined point. You still need the cylinder to connect the chair to the bottom half, but that hydraulic cylinder could be completely dead (with a max height pipe), and it wouldn’t matter one bit.