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Topic: ideas for creating linear movement/ general suggestions for approach please (Read 2174 times) previous topic - next topic

lax123

investigating about this "too many/ too few steps" i found that its rather a problem of good sequencing then a accuracy problem of the motor itself.

I found articles like this:
"Due to their rotor inertia if high speed step pulses are applied
instantly the motor under-steps and loses position. The same is true
if at high speed the step signal is switched off again the motor will
overstep and go beyond a desired stop position. Hence stepper
motors need to be 'stepped' precisely and sped up and slowed down
from and to a maximum step speed. Position is accurately
determined by using the PICs counting ability to add or subtract
pulses from a nominal 200 steps to ensure exact position."

So if i programm it right, it should not be a problem, should it?

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