DIY FFB Wheel Arduino Leonardo.
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DIY PWM+DIR DC Motor driver with DPDT Relay & MOSFET IRLB3034.

Schematics: PWM-pin11, DIR - pin10

Schematic-DPDT-Relay-MOSFET-H-bridge-PWM

Ai-Wave 2016, some desktop effects on slight set ups. ) 

 

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Find out the config with aiwave 2016 to work. The "constant force" slider, should not be zeroed. And that's it.
The relay driver works!:);):cool:

test run)

 

 

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The relay module is assembled in such a way.
 
P1110168.jpg P1110174.jpg P1110173.jpg
 
Test.
Screen-Shot01823.jpg
 
P1110182.jpg P1110168.jpg P1110169.jpg P1110170.jpg P1110171.jpg P1110172.jpg P1110173.jpg P1110174.jpg P1110175.jpg P1110176.jpg P1110177.jpg P1110178.jpg P1110179.jpg P1110180.jpg P1110181.jpg
 
 
Determination of the freewheeling diodes locations and connection. Just with ordinary 1N4007.
 
P1110189.jpg P1110190.jpg P1110191.jpg
 
 
And schematics for them.
 
Schematic-DPDT-Relay-MOSFET-H-bridge-PWM

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Advanced pwm+dir driver version is assembled. Got to test with MY1025.
 
P1110283.jpg
 
Schematic.jpg
 
P1110205.jpg P1110204.jpg P1110203.jpg P1110202.jpg P1110201.jpg P1110200.jpg P1110283.jpg P1110282.jpg P1110281.jpg P1110280.jpg P1110279.jpg P1110278.jpg P1110277.jpg P1110276.jpg P1110275.jpg P1110274.jpg P1110273.jpg P1110259.jpg P1110253.jpg P1110252.jpg P1110251.jpg P1110210.jpg P1110209.jpg P1110208.jpg
 
Capacitors.
 
Screen-Shot01885.jpg
 
Capacitors ripple current.
220uf50v x24 + 2200uf50v x2 + 3300uf63v x2
19A
 
220uf50v x24 + 2200uf50v x4
16,5A
 
Total
35,5A
 
 
Flyback diodes 30u60DN ~ 60A
 
Mosfets.
 
IRLB3034 x3pc.  Total allowed power should comprise  ~ 90 / 120A.

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Made some adjustments with min force for the wheel for the step test 2. To eliminate the zero responce zone. 
For the game have got some other set ups on it. 
Screen-Shot10483.jpg Screen-Shot10482.jpg Screen-Shot10481.jpg Screen-Shot10479.jpg
 
And new link to encoder. 
P1110326.jpg

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I follow this interesting project... Can I ask you why you choose chain instead of belt? As Motorbiker I know that to operate proper need to have some loose, if you tight too much it will become too hard and will kill the FFB effects, but in the same if it is too loose it will have some gap I think....There is a reason nobody to produce chain FFb wheel:) But will be happy to hear what you think and have in mind?;)

Cheers!

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I can give a number of builds with bike chains and sprockets, and can, may be even bet, that the only main reason, if the builders switched to the belts drive, is a chain noze, compared to belts ofcourse. On the other issues it is quite a good actually, as it appeared to be later on)

But generally, it's the most quick and dirty simple way to get everything work and be tested) Many aspects underwent under this scope. But ofcourse I too prone swithing to the belts, if build another base, with cars steering rack, i posted here before.    

Yea i made a bit loose to the chain, by adjusting the nuts on the motor mount. So that's not an issue. It do can have the right tension by that. 

Thank you Krassi for following this build) 

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Checked the torque test and a wheel under 12V12.5A Power supply appeared to be of having - 3.67 Nm of force. I made units conversion of the obtained data measured not with 1 meter lever of force, but with 7.5cm force lever. That has 5 kg at that applied point of measurement, fastened just right on that gear sprocket)    

Edited by Sieben

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