Showroom Portable budget G-Seat plus office chair spin. Perfect for beginners. No power tools needed!

Since there are a lot of moving pieces (and servos) here's a quick recap as to how I'm using them. Items are listed in the order of most noticeable to least noticeable feeling of motion.

RACING
Acceleration
1) G-headband pulls back
2) Chair slides backwards
3) Hip airbags inflate
4) Rib and hip belts pull down slightly
5) Seat back cushion tilts back slightly

Braking
1) Chair slides forward
2) Air bags behind knees and under feet inflate
3) Seat back cushion tilts forward slightly

Cornering
1) Rib belt pulls downward on one side
2) Pedals roll
3) Side air bags inflate

Heave
1) All air bags have 30% devoted to heave
2) 30% of chair sliding forward and backward to simulate heave

Traction loss
1) Shoulder belt connects to chair pedestal causing chair to spin
2) Hip belt pulls back
3) Rear seat wheels are pulled sideways
4) Wheel stand spins slightly


FLIGHT
Pitch up
1) Paddles under feet push up
2) Both rib belts pull down slightly
3) Air bags behind knees and under feet inflate
4) Seat back cushion tilts back slightly

Pitch down
1) Belt under feet pulls down ankles
2) Hip belts pull slightly
3) Seat back cushion tilts forward slightly

Acceleration
1) G-headband pulls back
2) Chair slides backwards

Deceleration
1) Chair slides forward

Heave
1) All air bags have 30% devoted to heave
2) 30% of chair sliding forward and backward to simulate heave

Roll
1) Rib belt pulls downward on one side
2) Pedals roll

Yaw
1) Shoulder belt connects to chair pedestal causing chair to spin
2) Hip belt pulls back
3) side air bags inflate

You are crazier than me ;-)

Hi
Fantastic information
Can you please tell me how you got 2 servos to work together in unison .
How did you wire them ?
Thanks
Dave

Thanks Dave!

To get the servos to work in unison, I just configured them to the same axis in SimTools in the "Interface Output" textbox.
For example: Interface Output : A<Axis1a>~B<Axis1a>~

As for wiring, I use a separate wall wart power adapter per servo
like this: amazon.com/gp/product/B01MT5WVCG, so I have 2 whole powerstrips dedicated to servo wallwarts, lol. Not the cleanest look, but it works for me. A more knowledgeable person may want to use an actual UPS for better cable management.

From the wall wart, I use the led terminal connnector to connect positive and negative dupont wires. The positive wire goes straight to the positive pin on the servo. The negative wire connects to a cheap breadboard, so that the breadboard then has one negative wire connected to the Arduino GND pin, and another breadboard wire connected to the negative pin on the servo. (I use the 7.5 volt setting on the wall wart.) Another wire connects the Arduino PWM pin to the signal pin on the servo.

Hope that helps!

Hi

Many thanks for all your information regarding the servo wiring .

I managed to get my one servo going connected to a sliding pot then connected to the warthog throttle but i feel that only using one small bladder to the large blue bladder doesnt give enough air .
I was thinking about using 2 small ones to one large blue one would be better ,but that would need 2 servos and 2 hinges .

I have connected this manually to the throttle so that the 2 blue ones inflate at my back on the take off roll and deflate going from the climb to cruise .

I'm not using any software yet but i hope to use simtools soon.
Thank you very much for your help .

Best regards
Dave from Scotland

Very clever to connect the servo manually to the throttle! It sounds similar to the Simtools joystick plugin.

That being the case, you could code the second servo to follow the same instructions as the first servo. However, another option, depending on the strength of the servo, is that you can add more bladders to a single hinge. I've found that a single 60 KG servo can handle squeezing 2 to 3 bladders, perhaps more. You can try adding 2 small bladders in the hinge connected to the large bladder. All the bladders would fit on the same air "circuit", but since multiple bladders are getting squeezed, it should allow more air to fill the large blue one. I plan to experiment with this in the near future. I'm also looking to explore adding servos directly to metal plates like the GS-5, albeit I'd use much smaller plates. More to come...

Looking forward to your project!

Hi
I forgot to ask in my last message ..
..have you t

Many thanks again for your info on the servos .
Im going to try 4 small bladders tomorrow on one hinge on my 65kg servo, 2 to each blue bladder ,hopefully itll work ,nothing
ventured nothing gained

Thanks
Dave




Thanks
Dave

2 black bladders for 1 blue will work well. More will put some stress on the servo ,i have burnt a few ;-)
i am also using the following:
2 hinges/2 servos, 2 black bladder for each + one blue shared by both servos to pump 2 blue in // (for even pressure)+2 black

Great idea @Banfy to even out the pressure!

Thanks for the info
Ill look into that

FYI, latest updates have been moved to a new thread here: https://www.xsimulator.net/communit...otion-using-office-chair-and-rc-servos.17323/