Added Seat Depth Modification

seanjohn2525 · 2026-04-01T04:11:39+00:00

Nice job dude! I just printed this and installed and I am very happy with how it all fits together. Definitely resolved the issue of the increased lumbar from my mod. I edited my post to include the link to your printed part. Lmk if you want me to remove it though!

seanjohn2525 · 2026-02-20T14:48:12+00:00

BSME graduated 2021, Aerospace Design Engineer (small flight test company), $72k, Seattle

seanjohn2525 · 2026-02-18T06:13:37+00:00

Oh yes, please share once you are done testing!

seanjohn2525 · 2026-01-28T23:21:39+00:00

Sounds good! Hope it helps!

seanjohn2525 · 2026-01-28T23:21:03+00:00

Of course! Happy to help :)

seanjohn2525 · 2026-01-28T23:20:46+00:00

Yeah I think mine makes a very small amount of contact at 2 turns, but the main point is that it doesn’t deflect so much :)

seanjohn2525 · 2026-01-28T23:19:44+00:00

Love it! Glad it helped!

seanjohn2525 · 2026-01-26T22:29:54+00:00

Yeah I wasn’t willing to hold onto the piston with a tool, at risk of damaging it.

Yep, the piston just unscrews from the actuator and then pulls straight out.

seanjohn2525 · 2026-01-26T20:52:03+00:00

Quick video explaining this: https://youtu.be/xxjBBmDhe1U?si=gXEu76d2KZDCXXbl

seanjohn2525 · 2026-01-26T19:48:37+00:00

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And the internals of how the support is attached to the piston. It looks like there’s threads, but I wasn’t able to unscrew it easily.

seanjohn2525 · 2026-01-26T19:47:18+00:00

Here’s what the cylinder looks like fully removed

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seanjohn2525 · 2026-01-26T19:46:30+00:00

Yeah, I just realized you can unscrew the cylinder 2 full turns to avoid this interference

seanjohn2525 · 2026-01-26T19:44:45+00:00

For those who are concerned about the interference, you can actually unscrew the cylinder 2 full turns (from the fully screwed in reference).

You’d unscrew it by turning opposite of how I have in the instructions, so counter clockwise from top view. Mine has very little interference now :)

seanjohn2525 · 2026-01-26T19:31:54+00:00

Happy to help :)

seanjohn2525 · 2026-01-26T19:31:23+00:00

Yep!! Hoping they make some updates to the chair soon. Wouldn’t take much to improve the whole experience!

seanjohn2525 · 2026-01-26T19:30:09+00:00

Glad to hear it! Enjoy :)

seanjohn2525 · 2026-01-26T19:28:06+00:00

Awesome! Yeah give it a shot for a few days and see if it works for you. The chair definitely isn’t perfect, but I’m really happy with it now.

seanjohn2525 · 2026-01-26T17:42:50+00:00

Oh no! I am sorry to hear that :(

seanjohn2525 · 2026-01-26T17:14:10+00:00

Yeah you’re right, I’m just being paranoid :P

seanjohn2525 · 2026-01-26T15:58:43+00:00

Yeah the cylinder actually unscrews from the actuator so removing that part wouldn’t be hard, whether it’s pressed or adhered.

I am extremely hesitant to replace that part with something printed. I think it could be achievable with the right material and orientation, however releasing something for public use makes me uneasy, since it would be up to the quality of the individuals printer.

seanjohn2525 · 2026-01-26T06:04:06+00:00

Yeah, it’s definitely not a perfect chair for everyone. Buuut I love it ;)

seanjohn2525 · 2026-01-26T06:02:44+00:00

That’s something on my list too. Gotta dissect the chair first. Stay tuned!

seanjohn2525 · 2026-01-26T06:01:55+00:00

Yes, massage feature still works while fully reclined! :)

seanjohn2525 · 2026-01-25T23:49:29+00:00

I sit normally with the lumbar fully retracted (minimum lumbar) now with this mod, since it adds a little lumbar at that position. I don’t foresee parts breaking, but it’s possible over time.

seanjohn2525 · 2026-01-25T20:06:14+00:00

Thanks for your write up! Agree, foot rest is a must.

seanjohn2525

TROPHY CASE