DOF Reality M2 Setup Instructions - Page 12

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Setup Instructions DOF Reality M2

5.3 Motor arm is not horizontal in the neutral position

The resting position of the black motor arm should be:

If your motor arm is out of the natural/level position it should be reset. Correct calibration is the

default resting arm position of the motor. Setting this correctly fixes many problems commonly

experienced by users. To recalibrate the motor arm, you will need the small "allen wrench" or

"hex key" provided in your hardware kit.

Over time the motor-sensor coupler bolts may become loose and the "neutral" motor position can get

misaligned from normal (often the arm moves just a bit higher than horizontal). If this is the case perform

tests (see section 5.4) to make sure motor is moving correctly first or consult DOF Reality support.

Please review the video of the calibration procedure:

https://www.youtube.com/watch?v=Wa6hRdMB4vA

1. Before starting, close all applications possible PC, especially SimRacingStudio and SimHub

(check the Windows task manager to make sure).

2. Download http://dofreality.com/SMC3Utils.zip, unzip all contents into any local folder on your

PC. Open with notepad file SMC3Utils.ini and set COMM_PORT= to correct COM port number

from your Windows Device Manager (see 5.1). If you have H6/P6 DOF: each control box has a

specific port number. For SRS to find the control box, you must know which box corresponds to

the desired control box. See section 5.2.4.Run SMC3Utils.exe. If you are getting an error

messages about COM port communication, you haven't set port the number properly in this

step.

3. Make sure the DOFR control box power is OFF (make sure motor connections and the USB

remain fully plugged in).

4. Using a wrench and the large allen key, disconnect the silver threaded "motor arm" from the

motor that needs to be re-calibrated only from motor side and leave hanging freely. If you have

a damper attached, you will need to disconnect that as well. The motor needs to be free to

move.

5. On the side of the motor pointing towards the center of the platform, use a small allen key to

loosen the "coupler" (silver tube like roller). You only want to loosen the two small allen screws

on the MOTOR SIDE the other side is the "sensor" that connects to the plastic cover. Do not

touch the sensor side allen screws.

6. On your PC go to the SMC3 application.

7. With a computer screen-shot (or your phone) take a picture of the SMC3 screen with the

current settings and values (IMPORTANT). The default settings are: Fpid / 10, Kp = 120, Ki = 1,

Kd = 10, Ks = 5, PWMmin = 0, PWMmax = 180, PWMrev =200, Max limit = 50, Clip Input = 190,

Deadzone = 0.

8. At top left of SMC3 tool now click "ON" the motor that needs calibrated.

9. Click the "step 1" buttons to say "step 10"

10. Click "KP" down to "60"

11. "PWMmax" to "60" and "Ki" to "0" (zero).

12. At this point the "Max Limits" and "Clip Input" should also have adjusted down to 0 as well.

If not, then click them both to "0".

13. Power ON the DOFR control box.