Working with small motors

nice tombstone prop

marmalade said:
Stepper motors are a far better option for moving displays like this... not only do they have tons more torque at lower rpm but their positioning and speed is (of course) absolute and infinitely variable. Plenty of cheap drivers out there now and there's even some p&p dmx stepper controllers available which makes it a breeze. And lots of off the shelf hardware, nema23's generally have a 1/4" shaft which accept a huge range of couplings

And they never wear out! :)
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i was playing around with a stepper motor from old scanner today. was able to run from arduino but with no torque, also tried stepper motor driver DRV8825 but no movement....
 
OK brains trust - riddle me this: Just bought a wiper motor (2010 Toyota Kluger for those playing along at home) and the plug on it has 5 pins:
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I popped this off to see if there was a simple pos/neg, and there looks to be near the motor itself:
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But I'm wondering if I'm able to hook wires up directly to these, and what purpose the plug cap has, particularly as it seems to have some type of gear wheel stopper thingy in it. I'd like this motor to turn 360 and not stop (like many rear wiper motors do) but want to check - can I make do without this plug and go direct?
 
Thanks Kitman. Never thought to look at youtube (rookie mistake)
So I wonder if I was to reverse the pos/neg polarity, would that simply make the motor run backwards or go bang?!
 
I believe that most wiper motors go in one direction only. This simplifies the wiring and the mechanical. The linkage from the circular motion first pulls the wiper arm, then pushes it on the second half of the rotation. The "park position" is set so the wiper is in its "home" position when it becomes disengaged.
 
algerdes said:
I believe that most wiper motors go in one direction only. This simplifies the wiring and the mechanical. The linkage from the circular motion first pulls the wiper arm, then pushes it on the second half of the rotation. The "park position" is set so the wiper is in its "home" position when it becomes disengaged.
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You must have been typing when I was.
As far as the wiper going in reverse, this is a new one on me. I'll have to get one and test this.
 
Thanks guys. I'm not fussed if it does go backwards, my main concern is that it has continual 360deg rotation, no stopping at anytime when power is applied. I'll still need this cover to protect the gears, but I'll have to just poke around and find the pos & neg wires and just use those.
Hopefully when I get home and clean it up a bit the pos & neg terminals are labelled on the motor.
 
You should be able to use the continuity function on your multimeter to trace which 2 wires on the 5 pin connector go to the 2 tabs you mentioned earlier.
 
Yeah that's what I thought. Just need to try and determine which of those 2 pins is pos/neg.
 
I'll post an update this evening upon further investigation :)
 
Hey dj im possibly a bit late with info here and haven't looked at any of the videos posted but being a car person all my life I know the top you have pulled of is basically the stop exactly in same position mechanism . From experience with earlier model wiper motors earth the body and add power to whichever pin gives you the required speed . And yes motor will spin in same direction constantly as I feel some people think wiper motors change direction left too right for wiper action not true . They constantly spin in same direction .
 
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