Stepper Motor Controller Possible? - Page 2 - Electronic Circuits Projects Diagrams Free

Grossel · 20th October 2009, 03:35 PM

Quote:

Originally Posted by gladiator11

Ok, can I just use a brushless dc motor + controller and an IR photo sensor to stop it at 360 degrees? or will that not be accurate??

That depends on how fast the motor will go. Will it stop at the right spot if speed is too high?

It will always be possible to make the rotation approx 360 deg. But how accurate do you need it to be? Eg. a tehth of a degree?

gladiator11 · 20th October 2009, 04:00 PM

The speed will be constant, It should be accurate to maybe 1 or 2 degrees or so...

Grossel · 20th October 2009, 05:54 PM

Quote:

Originally Posted by gladiator11

The speed will be constant

How fast?

Quote:

Originally Posted by gladiator11

It should be accurate to maybe 1 or 2 degrees or so...

Then if the speed isn't too high, this should be feasible.

Mr RB · 20th October 2009, 08:27 PM

Use a standard DC gearmotor. A nice slow one like a windscreen wiper motor. In fact the early windscreen wiper motors ALREADY HAD a bult in rotation detect switch so they would stop at the right spot.

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20th October 2009, 04:00 PM	#17
gladiator11	The speed will be constant, It should be accurate to maybe 1 or 2 degrees or so...

20th October 2009, 08:27 PM	#19
Mr RB	Use a standard DC gearmotor. A nice slow one like a windscreen wiper motor. In fact the early windscreen wiper motors ALREADY HAD a bult in rotation detect switch so they would stop at the right spot.