Question How to change start position in Simtool.

1.When I start output testing in simtools the position is change 45 degree from middle.
2. axis test 0-3% move fast 4%-55% is slow and then 56% it switch backward and forward

Thanks for that @noorbeast! Was looking for how to do that!

do not different. I think it may have been caused by a potentiometer

now position is in the middle. but it still jerk.
I uncertain about motor or potentiometer.

PS. I use wiring + - to motor in mini servo 9g. I will try on wiper motor soon.

it't jerk when pwmmax >50 in SMC3
it's varied by pwmmax.

I find a problem.It should be wiring potentiometer is not fit.
I has a question. my arduino pin 3 and pin 10 is not working. "SMC3 CODE" can change Pin number" in
const int ENApin1 =2; // ENA output pin for Motor H-Bridge 1 (ie PortD bit position)
const int ENBpin1 =6; // ENB output pin for Motor H-Bridge 1 (ie PortD bit position)Switch from ENBpin3
const int ENApin2 =4; // ENA output pin for Motor H-Bridge 2 (ie PortD bit position)
const int ENBpin2 =5; // ENB output pin for Motor H-Bridge 2 (ie PortD bit position)
const int ENApin3 =3; // ENA output pin for Motor H-Bridge 3 (ie PortD bit position)NOT USE
const int ENBpin3 =7; // ENB output pin for Motor H-Bridge 3 (ie PortD bit position) NOT USE
const int PWMpin1 =9; // PWM output pin for Motor 1
const int PWMpin2 =11; // PWM output pin for Motor 2 Switch from PWMpin3
const int PWMpin3 =10; // PWM output pin for Motor 3 NOT USE

Can I do this?

Thanks!! It help for jitter and wrong starting position in SimTool. I was trying to fix this problem long time.

I'm also having trouble with the same symptoms.
Is the solution to change the potentiometer?

wich arduino board do you use?