<- gallery of parts
I've been wanting to try and make a mount for space gaming to go with my office chair - a Steelcase Leap. The organic-ish arms didn't make an easy way to create a clamp system, but in fooling around with it recently I noticed I could remove the armrest pads and they had a nice 4-bolt pattern. Since this is my office chair I need to be able to swap in or out of gaming setup easily.
I added a 30mm tall adapter that lets me slide a 6mm x 30mm (actually, 1/4x1-1/4) bar in and secure at the back, with a plate adapter to mount my old HOTAS4 to the bar, and a pin at at the rear for quick release.
The plates and adapters are eSun PLA+ which is fairly stiff but has some durability/ductility to it. The bar was supposed to be 6061-T6 aluminum but I was lazy and didn't feel like making a mess in the shop, ripping down some surplus plate I have, and I was too cheap to go out and buy 1/4x1-1/4 steel bar stock so I decided to print the bars from PAHT-CF (high temp nylon with carbon fiber). The 385mm bars just barely fit diagonally on my CR-10s.
One of the best pieces of advice I've picked up from the Internet is to never cheap out on things that connect you to the ground (tires, shoes, mattresses, chairs, etc). Theses chairs are primarily sold to business/ offices where they're meant to be used and abused daily for years without needing to be replaced while still remaining ergonomically comfortable. That said, 1200 is the new sticker price, you can absolutely find them second hand/ refurbished/ resold for a quarter of the price. Admittedly still expensive, but very much worth it when compared to an IKEA/ office max special.
(I may be a little biased since I daily drive a Leap V2)
Ok look advertising has clearly done a number on your brain because that is a fucking absurd amount of money to spend on a chair.
Like nothing in it is worth that much, you can get a very comfortable chair for 200 usd. You're not getting 1000 usd extra value from this, just think about how much money that is and what materials this is actually made of.
Things marketed to business are absurdly overpriced because spending someone else's money is easy, but you don't need a chair adaptable to any body shape and capable of taking 500 kg of load. you know what body shape you are, and you probably aren't that heavy. Features that sort of make sense in an office environment if you're high on your own farts are completely unnecessary at home.
This is about status, hence why OP literally leads with a brag about how much money they can afford to light on fire in this post.
Hell medical evidence suggests you don't even want too comfy of a chair because you should move around and engage your core muscles. Stuff like lumbar support is actively harmful to most people.
So get a nice chair sure but it's a chair, you shouldn't spend 12 weeks groceries on abs, mild steel, polyester, and maybe some polycarbonate. That's stupid.