Much respect. But the guy is insane.
Assuming he is married, his wife must have a saint-level ability to understand and endure. I canāt imagine he had a lot of time for dishwashing and laundry for a couple of years when he was putting that monstrosity together!
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I donāt get itā¦
A 360Ā° motion platform canāt replicate the forces and accelerations of real flight, so why botherā¦?
For instance itās quite possible to roll an aircraft and feel more or less the same forces as if youāre flying straight and level. In that thing you will feel that youāre hanging up-side down.
The simulation of the physical position in three axes is just going to mess with your equilibrium, unless you can also simulate the g forces. If, however, you can tune that thing to simulate the onset of acceleration forces, itās a totally different matter, but for that you donāt need 360Ā° motion. So, again, why bother?
A motion rig with perhaps +/- 20Ā° rotation in all axes, that simulated the onset of forces, would actually be much more realistic and a lot easier to build.
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Is it not partially a cheat because you get a cue of your orientation (ie, upside down) whereas in the plane the G force overrules the fact that you are upside down and you feel pushed into the seat as if right side up, perhaps plus some weight depending on what you are doing?
Plus add the VR motion sickness potential and that the visuals and actual motion may sync (excluding yaw it seems) which may be a benefit, until you get to the force factor like you say and it sounds like a recipe for nausea.
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I was sort of thinking the same.
Then I found a thread where he actually posted detailed info of his rig and basically he uses the two-degrees of freedom with inverse cinematic to simulate G forces.
To be clearer, when he lands on a carrier and his plane snatches a cable the rig tilts forward aiming 90Ā° straight down. This way he feels total decelerationā¦ Well 1G at least.
When he is launched the rig tilts backwards to point straight up so earth 1G is all used to emulate acceleration.
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Which again is wrong. Because then the only forces you feel are the ones in your shoulder harness. You donāt feel anything in your seat. In real life there would be a combination.
The combined sensation will be deceleration and downwards acceleration.
But itās cool that he has thought about it, but 360Ā° rotation is unnecessarily complicated when +/-20Ā° would be enough and actually better.
I donāt know about the EF simulator, but the commercial sims we use can simulate enough onset of acceleration forces to trick the equilibrium. And while they are called āfull motionā they are nowhere near that 
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I could tell youā¦ But thenā¦ Iād haveā¦ To drink
Itās a lot of words.
Tell me when youāre online on Discord.
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At least the cleaning process after eating a bag of nachos is rather easy in his pitā¦
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ā¦or she has taken out a lot of life insurance on him! 
(Iāve got cut down on my ID channel watching) 
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Having a 5-point quick release harness in the SimBox is perhaps not necessary. After all, the only motion I could experience is if I put it on a slopeā¦
But, I find it adds to the immersion to strap in the seat.
Now, looking behind you is hard enough in VR. Being strapped in makes it even harder.
So Iāve been thinking about a way to get some elasticity in the shoulder straps.
So I made four brackets that would hold five 4mm bungee cords and mounted these on the straps.
What do you think?
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Hehehe Iāll keep that to myself.
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I gather you will have to test with various bungee lengths to find the optimal results.
Edit: or tackle the challenge of a variable-elasticity design? 
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Actually, these 5 bungees turned out okā¦ Weāll see how they hold up over time.
Hold my beer!
Actually, get your mitts off my beer and tell me moreā¦
Isnāt this variable elasticityā¦? I mean, the bungees arenāt linear, or?
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I meant to refer to the total amount of stretch, in length.
Also a simpler idea perhaps, the beltās end piece appears to hook on to the pin at the base of the seat - would it have been possible to just use a large spring between that pin and the beltās end piece?
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You could possibly add a clutched motor that uses G-force outputs from the simulator to put a pull on the bungeecords? That ought to be reasonably easy with a motor controller circuit and an arduino to control the H bridge.
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Yes, I thought about that. But the bungees are silent and a spring, or springs, tend to make creaking noises and they could risk scraping against the back of the seat.
Another advantage of bungees is that they only extend until the braiding is taught.
I have tried a Viggen sim with a belt restrainer. It worked extremely well, actually!
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With X-plane itās quite easy to retrieve the data! DCS needs DCS-BIOS and I havenāt quite figured out exactly the format that you receive from it but itās possible!
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Yeahā¦ But itās not going to happen in this SimBox, anyway.
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SimBox 2.0 confirmed?!
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