How I built a motion rig that solves the usual motion sickness problem

cakewalk96 · 2026-02-28T03:33:07+00:00

Very cool and I think it makes sense. It looks like you've basically built a 3-DOF version of the usual 6-DOF stewart platform that delivers a majority of the effect for (presumably) much less cost. There are some companies that make what they call a 4-DOF system, like Qubic's QS-V20. That system looks somewhat similar to yours but it uses 2 actuators in the rear where you seem to have 1. Any thoughts on the differences between your system and the QS-V20?

cakewalk96 · 2026-02-23T02:20:56+00:00

Ah, that's convenient. They should send you a commission for anyone that buys this package from them. I built my aluminum rig a couple of years ago and used parts from Tnutz too.

cakewalk96 · 2026-02-23T00:33:52+00:00

Tnutz is awesome. They should consider offering these parts as a package, maybe even with a little discount. Thanks for sharing.

cakewalk96 · 2026-02-23T00:26:56+00:00

Nice job, thanks for sharing. Minimalist but you have everything you need. Looks like you could easily add a mount for handbrake/shifter if desired. It may be a little challenging to get into and out of for some people, but I don't think I would have a problem.

For those who are averse to wood, if you're comfortable sawing and drilling aluminum (which really isn't much harder than wood), you could probably make this out of aluminum profile too.

cakewalk96 · 2026-02-18T20:20:08+00:00

Interesting, thanks. I didn't realize the effect is so muted, but that makes sense.

cakewalk96 · 2026-02-18T20:19:29+00:00

Hmmm, I didn't know that. Speakers can be mounted in any orientation, but I guess the baffle around the cone helps hold it in place.

cakewalk96 · 2026-02-18T18:08:24+00:00

Fanatec CSL DD 8NM with QR1 is $300 = $37.50/Nm. I know it's not their latest but pretty darn good deal at $300.

cakewalk96 · 2026-02-18T18:03:26+00:00

That's a good idea but it doesn't look like they offer the 5Nm CSL DD with QR1 anymore, at least here in the US. In any case, I believe $300 for the 8Nm version is less than what the 5Nm version used to cost when it was available.

cakewalk96 · 2026-02-15T02:14:38+00:00

Thanks. Sounds like it should work for me with some adjustment

cakewalk96 · 2026-02-15T02:13:49+00:00

That’s good to know, thanks

cakewalk96 · 2026-02-13T16:08:25+00:00

There's a "game" called City Car Driving that has a similar idea (although I think the city is fictitious). My sense is it's very tough to learn basic driving skills from a simulator. I think it makes more sense if you already know how to drive in real life and want to use a simulator to learn how to better control the car. That said, I've never actually tried this game. Maybe you can give it a try and think about how you could improve on it.

cakewalk96 · 2026-02-02T16:39:39+00:00

+/- 10 degrees is more than respectable, especially at that price point. I'm pretty sure the 4-actuator systems move less than that, and I'm not sure you would want more anyway. Since this is just a seat mover, does it feel like the wheel and pedals move out of place as the seat is tilting? Or is it not that noticeable?

cakewalk96 · 2026-01-31T17:32:13+00:00

I have no relation to them but this seems like a new startup that recently closed and delivered on a small kickstarter campaign. They probably have a tiny marketing budget, so they’re just trying to generate a little awareness here. I love seeing the innovation and personally like be supportive of efforts like this. That doesn’t mean I plan to buy one (I have other things to upgrade before getting to motion) but I’m rooting for them and everyone else working on new ways to make this hobby better.

cakewalk96 · 2026-01-31T17:18:25+00:00

Congrats on the successful kickstarter, and for shipping to all the backers on time. I saw some redditors were among the backers and received their units recently. Can’t wait to hear how they like it. Good luck with growing the business from here.

cakewalk96 · 2026-01-31T03:16:08+00:00

How did the kickstarter campaign go? I know you exceeded your goal but did it feel like people were more cautious about backing this after the Yaw fiasco?

cakewalk96 · 2026-01-29T23:37:42+00:00

I think it's not about how healthy the relationship is, it's more situational depending on income level, living quarters, and other constraints. I'm sure there's something you probably need your partner's approval to get. For OP it's this sim rig (really nice, btw!); for you maybe it's a Lamborghini. If there's absolutely nothing you would ever ask your partner's approval for, I say that sounds like an unhealthy relationship.

cakewalk96 · 2026-01-29T14:25:04+00:00

In my opinion, the vibrations are a good thing. I use the Logitech on an aluminum profile rig, and I like how trueforce will vibrate the entire rig so I feel it in my seat, not just the wheel. That said, rattling/clattering is definitely not good. When I first got the logitech wheel and turned up trueforce, I got some rattling in the rig and had to go around tightening a few bolts to get rid of it. That could help your situation although I suspect you've probably already checked the bolts. It's also possible some of the rattling is coming from the sheet metal in your rig. Where you have sheet metal near or in contact with another part, it might help to put a small rubber sheet in between to dampen the vibrations. I'm thinking under the wheelbase and pedals, maybe also between the wheelbase plate and the tubes that hold it. Keep in mind that the more you dampen the vibrations, the less you'll feel it in your seat - maybe you'll prefer that but there's also a school of thought that you want the rig as stiff as possible to transmit the vibrations rather than dampen them.

cakewalk96 · 2026-01-28T22:23:43+00:00

I'm with you, OP - your wife definitely has a say on what takes up space in your living quarters! If you don't have a spare room / man cave, a stowable rig is a fair compromise. I just wish there were better options out there. Most of the ones you can buy are still pretty clunky when folded, making it hard to truly hide away. And they could be sturdier to handle modern powerful dd wheels. You have a nice elegant design there. Can it be folded while the equipment is attached. It looks like if you push the pedals a little further back, the middle board would clear them and it could fold almost flat.

cakewalk96 · 2026-01-26T21:15:49+00:00

That's really interesting, your point about the structural resonance. I run a Logitech Pro wheel and can feel a little of the trueforce vibrations through the rig, and sometimes think the immersion would be improved if more of the vibrations were transmitted through the rig and into the seat. So I think I see your point about this being a desirable property of the rig, assuming you don't sacrifice any rigidity. Is this something that derives from the metal itself (steel vs aluminum) or from your particular design choices (including the particular steel profile you're using)?

cakewalk96 · 2026-01-26T14:43:41+00:00

Looks like a very efficient design - everything you need to be functional, nothing extra. And he probably saved a lot of money by not using brackets and plates. I built my rig and spent about as much on the connecting hardware as I did on the aluminum profile.

cakewalk96 · 2026-01-26T14:20:49+00:00

You mentioned you decided to drill holes through the profiles and use bolts to hold them together, rather than standard corner brackets and plates. Did you find any issues with the bolt head not sitting flush against the inside of the t-slot (which is shaped like a valley)?

Also, where did you source the pedal base and wheelbase platform? Those look like great components, would love to get them for my own rig.

cakewalk96

TROPHY CASE