Servo Motors and old Stuff!! - Electronic Circuits Projects Diagrams Free

watzmann · 13th February 2005, 11:01 PM

Hi all,

i have a very large amount of old printers , fax Machines ,scanners and Cd-Rom drives.......so i have an idea that i can use motors from this devices for my robot projects.

but my question is :

is any of this devices work with servo motors??
and how can i differentiate between differant kinds of motors....i mean if i got a motor from any old device so how can i ensure that it's a servo motor from it's shape....that's in case this motor have no label on it.

Thanks

**Nigel Goodwin** · 14th February 2005, 09:07 AM

Quote:

Originally Posted by watzmann

Hi all,

i have a very large amount of old printers , fax Machines ,scanners and Cd-Rom drives.......so i have an idea that i can use motors from this devices for my robot projects.

but my question is :

is any of this devices work with servo motors??
and how can i differentiate between differant kinds of motors....i mean if i got a motor from any old device so how can i ensure that it's a servo motor from it's shape....that's in case this motor have no label on it.

None of them will have servo motors in, although a number of them may use a DC motor in a servo system (for positioning etc.), but it will be an integral part of the unit, and not a 'stand alone' servo, as for radio control.

Roboticinfo · 15th February 2005, 01:03 AM

Another thing, most of the motors in those units, are stepper motors which are not Ideal for robotics.

JFDuval · 15th February 2005, 03:29 AM

Hello!

Why do you say they aren't ideal for robotics? The choice of a motor depends of the use you need it for. Steppers are great for many projects that required precise movement.

bloody-orc · 15th February 2005, 09:19 AM

about those steppers... i have a lot of those steppers from printers and copymashines, but i have neve got one moving as strong as needed... most of them cant even turn my webcam 5 degrees... and i have folowed every tutorial tryed to run it every way with 1Amp and fith 3A and with original voltage and with bigger voltage but still nothing... Are all my printers somekind of a indonesian junk? i dont think so... i tried to control it with uln2004 and with transistors and master is a pic or LPT port...

can someone tell me what i do wrong
and if anyone knows where to find good datasheets of steppers... google cant find most of them...

**Nigel Goodwin** · 15th February 2005, 09:53 AM

Quote:

Originally Posted by bloody-orc

about those steppers... i have a lot of those steppers from printers and copymashines, but i have neve got one moving as strong as needed... most of them cant even turn my webcam 5 degrees... and i have folowed every tutorial tryed to run it every way with 1Amp and fith 3A and with original voltage and with bigger voltage but still nothing... Are all my printers somekind of a indonesian junk? i dont think so... i tried to control it with uln2004 and with transistors and master is a pic or LPT port...

Steppers are fairly low power devices, anything you want to turn with one needs to be free moving, a webcam should be no problem, but it needs to be well balanced and easy to move.

They are also only very slow moving, if you try to step them too fast they don't move at all.

bloody-orc · 15th February 2005, 04:35 PM

well i have ran them in one step in 1 sec and 1 step in 3 sec and 1 step ion 0.5 sec but it is always the same...

raitl · 15th February 2005, 06:15 PM

have you tried energizing two coils at the same time? that increases the torque some but makes the movement less smooth

bloody-orc · 18th February 2005, 03:38 PM

yes i have...

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13th February 2005, 11:01 PM	(permalink)
watzmann	Servo Motors and old Stuff!! Hi all, i have a very large amount of old printers , fax Machines ,scanners and Cd-Rom drives.......so i have an idea that i can use motors from this devices for my robot projects. but my question is : is any of this devices work with servo motors?? and how can i differentiate between differant kinds of motors....i mean if i got a motor from any old device so how can i ensure that it's a servo motor from it's shape....that's in case this motor have no label on it. Thanks

15th February 2005, 01:03 AM	(permalink)
Roboticinfo	Reply Another thing, most of the motors in those units, are stepper motors which are not Ideal for robotics. __________________ Robotics is heaven in my book.

15th February 2005, 03:29 AM	(permalink)
JFDuval	Hello! Why do you say they aren't ideal for robotics? The choice of a motor depends of the use you need it for. Steppers are great for many projects that required precise movement. __________________ JFDuval jfduval --@-- aqra.ca http://www.aqra.ca

15th February 2005, 09:19 AM	(permalink)
bloody-orc	about those steppers... i have a lot of those steppers from printers and copymashines, but i have neve got one moving as strong as needed... most of them cant even turn my webcam 5 degrees... and i have folowed every tutorial tryed to run it every way with 1Amp and fith 3A and with original voltage and with bigger voltage but still nothing... Are all my printers somekind of a indonesian junk? i dont think so... i tried to control it with uln2004 and with transistors and master is a pic or LPT port... can someone tell me what i do wrong and if anyone knows where to find good datasheets of steppers... google cant find most of them... __________________ Need Help? Press F1 If that doesn\'t help you, ask me... I might know better.

15th February 2005, 04:35 PM	(permalink)
bloody-orc	well i have ran them in one step in 1 sec and 1 step in 3 sec and 1 step ion 0.5 sec but it is always the same... __________________ Need Help? Press F1 If that doesn\'t help you, ask me... I might know better.

15th February 2005, 06:15 PM	(permalink)
raitl	have you tried energizing two coils at the same time? that increases the torque some but makes the movement less smooth __________________ Here...let me improve it for you! Puff of smoke ....oops...

18th February 2005, 03:38 PM	(permalink)
bloody-orc	yes i have... __________________ Need Help? Press F1 If that doesn\'t help you, ask me... I might know better.