Showroom Budget Compact 6DOF Universal VR Flight / Racing rig - MSFS, SMC3, FlyPT, Transducers, Controls

An additional question.
What power supplies do you guys use for your rig?

I have no experience with DC motors and because I'm looking at ordering a power supply this topic is of great interest. I haven't been able to find the efficiency of the recommended motors in the specs so if we assume 80% then one 1500W power supply won' t be sufficient based on the above calculator. I was looking at getting two 1000W supplies but will hold off and see what else can be learned from the current discussion. The Stall Current is a head scratcher as well?

I know basic electronics but not an electrical engineer. My father-in-law worked in electronics and will ask him. But even better, he has a friend that works for Mitsubishi in their motors division. He's the guy I really want to talk to.

But generally, current is what is doing the "work" relative to the load on the motor. Current is measured in amps and a car battery has over 600 "cold cranking amps" due to the resistance of trying to turn over the engine. And also why guys use them on 12 volt sim rigs, never short of pure raw power.

I wanted to get 30 amp power supplies but went with the cheaper 20 amps but I'm not a heavy guy either. Real weight test with bigger guys is coming this weekend.

I have a question regarding the connections to the relay. I've circled the areas in the attached. The input area has In-1 to In-5 connected but the output only the first 4 relays seem to be used?

Also can someone please explain what is going on here I'm not strong on the electrical side of things Thanks

The goal of this relay is : Arduino 1, 2 and 3 give their ok signal from PIN12 to IN6-IN7-IN8. When everything is ok the 5v is going to activate IN1-In2-IN3-In4-In5 and let 12V going to the fan/rgb and 24V going to the Motor driver. If any Motor goes in runaway, the Arduino deactivate the signal and cut the 5V which is necessary to provide the 12v and 24v. So everything is turned off. You are right. Relay1 is not used so you can just connect IN2-IN3-IN4-IN5. In my case, I have an electromagnetic brake on each motor that need 24V in order to release the brake, So I have used IN1 to provide 24V to all motor, this is not power consuming so 1 relay to all 6 motor is fine.

@Francois Parizeau Thank you very much! I get it now, I was looking at it completely the wrong way. Cheers

Can someone tell me what kind of range you are able to achieve with hall sensor and magnet ? I am very strugling to get a better range that about 420 to 620 (according to the reading of Arduino serial monitor). I tried with different brand of hall sensor, different brand of magnet but without more success...

Ok, I fixed it... I made a modification to the Magnet holder. Now I can place 2 magnets on each side and the magnetic field is closer to the hall sensor. If you run into the same problem, feel free to try this version of the magnet holder...

I have a question regarding the fuse placement. In the wiring diagram there are 6 20A fuses placed between the relay and rectifier. Does it not make more sense to place them between the power supply and the relay? You would only need 3 fuses in this case? Thank you!

This is a great explanation of the operation.

I do not see how the Arduinos get Vin to operate. Looks to me that Vin comes from relay 5 but relay 5 is not activated until Arduino gives OK signal to IN6 which then activates relays 1 through 5. If no Vin to Arduinos how do they give activation signal? What am I missing here? Any help greatly appreciated.

Ok I'll take a shot at this since I'm also learning The connection is on the Normally Closed side of relay 5. The 12v will power the boards and send via the 5v out power to the relay, all connections are on the Normally Closed side and since the relay pins are receiving HIGH the circuit is complete. If there is a runaway condition on one of the boards Pin 12 goes low which will open the Normally Closed rely and shut everything down.

Thanks for the reply.

The diagram I have from Roman's plan set seems to show the connections on the NORMALLY OPEN side.

Your description of having them on the NORMALLY CLOSED side seems to make more sense to me.