Some questions regarding a servo motor's data sheet.

[selbstdual]

I would never put a gear that would multiply the rotational speed on a servo motor. The "play" might be so much that an effect as the one you describe here could happen, and obviously it does. Also as I stated to your P.M. do not use maths in the FOR command. Put directly the number you want, not the 1000/20.

More, the 50 pulses of the FOR-NEXT loop might be little. Try to raise the number to 500.

Ioannis

Interesting. What I found is that starting from 0° and rotating to 360° by using trial-and-error values without stopping in the middle makes the motor stop at very much the same position, ie causing a very close to 360° turn being much more exact than the "return-to-the-middle"-routine. In Short 0° <-> 360° works. 0° -> 180° doesn't. 360° -> 180° doesn't(notice the pointer's(->) direction).

What I found additionally: It is normally not the position that is to be driven to. It is the return. So (RotMin+RotMax)/2 changes its effective position. In other words, even though (RotMin+RotMax)/2 must be constant, the motor does not stop at the same place when being directed to.

[Acetronics2]

What I found additionally: It is normally not the position that is to be driven to. It is the return. So (RotMin+RotMax)/2 changes its effective position.

your program does exactly what has been written ... no more, no less.

That's also the first time I hear a CONSTANT ( or the mean value of 2 constants ...) can be modified in PBP WHILE running the program ...

4.6. Constants
Named constants may be created in a similar manner to variables. It can
be more convenient to use a constant name instead of a constant
number. If the number needs to be changed, it may be changed in only
one place in the program; where the constant is defined.

"same player shoots again" ...

Alain