new PF motor?

[rjk1977]

i ran into this PF motor

anybody some personal experience with it???

9670 E-motor De E-motor is een 9V motor met een interne versnellingsbak. Zijn 9:5:1 tandwieloverbrenging geeft een maximum kracht van 4,5 Ncm en ongeveer 800 rotaties per minuut zonder tegenwicht. Het functioneert ook als een zeer efficiënte generator.

i will try to translate

this E-motor is a 9V motor with internal gearbox. His 9:5:1 gearreduction has a max force of 4.5 Ncm and about 800 rotations per minute without resistans. Its also functions as an efficient generator

(EDIT) http://www.miniland.nl/Nieuws/Artikelen/energie%20eductation%20dec%2009.htm

Edited October 28, 2010 by rjk1977

[mixtil]

i ran into this PF motor

anybody some personal experience with it???

9670 E-motor De E-motor is een 9V motor met een interne versnellingsbak. Zijn 9:5:1 tandwieloverbrenging geeft een maximum kracht van 4,5 Ncm en ongeveer 800 rotaties per minuut zonder tegenwicht. Het functioneert ook als een zeer efficiënte generator.

i will try to translate

this E-motor is a 9V motor with internal gearbox. His 9:5:1 gearreduction has a max force of 4.5 Ncm and about 800 rotations per minute without resistans. Its also functions as an efficient generator

Hi,

where have you find this picture?

[Ultimario]

I think it comes with the renewable energy set number 9688. Has been out there fora while and if i recall correctly discussed to some amount a half year back or so. Though i haven't come across any tests revealing usefulness but the rpms sure sound like they could be useful.

Check it out at Brickset

Edited October 28, 2010 by Ultimario

[Cwetqo]

This is part of Lego Education and is meant primarily as generator.

[rjk1977]

This is part of Lego Education and is meant primarily as generator.

so you can't use it as a motor just as a generator???

[Physix]

so you can't use it as a motor just as a generator???

I thought you can use almost every motor as a generator and vice versa?

[Ultimario]

so you can't use it as a motor just as a generator???

You can use a motor as generator and vice versa.. They are the same thing, feed rotation in get electicity out, feed electricity get rotation out.

You can actually use your current motors as generators too but i'm guessing this generator motor has gearing that is more suited for generating power than the regular PF motors.

You can try it by attaching two of your motors directly to each other and put a wheel on them. Then you rotate one wheel and the other wheel follows.

Edited October 28, 2010 by Ultimario

[rjk1977]

Ok thats great , but, what extra functions can u use with it , because there's a gearbox in it, will is shift gears automatic when some force is used or just with speed?

(sorry my english is really worse)

[Milan]

You can try it by attaching two of your motors directly to each other and put a wheel on them. Then you rotate one wheel and the other wheel follows.

The second one will work with less RPMs, of course.

Here are some references:

http://technicbricks.blogspot.com/2010/03/lego-education-renewable-energy-set.html

http://technicbricks.blogspot.com/2009/12/news-from-lego-education-for-2010.html

http://technicbricks.blogspot.com/2009/12/lego-education-2010-update.html

[Ultimario]

At rjk1977: The gearing is not a gearbox as one could understand it. It is more like a gear reduction that is present in all the PF motors, without gearing it would be directly attached to the electrical motor which i don't think we've seen in any lego motors but i could be mistaken on this. So no, no switchable gears, just a different gear ratio than the regular PF motors.

Thanks Milan for the good links :)

Edited October 28, 2010 by Ultimario

[DLuders]

From the Lego Education website, it says "The E-Motor is a 9V motor with an internal gearbox. Its 9.5:1 gearing ratio provides a maximum torque of 4.5 Ncm and approximately 800 rotations per minute without load. It also functions as a very efficient generator." It's been "Out of Stock" for months, but I read somewhere that it will be available at the end of 2010.

On this Eurobricks post, here is some additional information from Mortymore:

E-motor comparison with other PF motors

The following information about XL and M motors was collected from Philos website

XL-Motor (8882): 40 N.cm / 220 rpm

M-motor (8883): 11 N.cm / 405 rpm

E-motor (W979670): 4.5 Ncm / 800 rpm

cumps

Also, Conchas wrote the following on TechnicBRICKS:

On this TechnicBRICKS Blogspot post, Conchas wrote about the 9760 Lego E-Motor. Amongst other things, he wrote,

"On the other way this one shouldn't be very useful as a LEGO Technic motor (unless for instance to build an high-speed fan) exactly because of its characteristics (low-torque/high-speed), when what we demand is exactly the opposite (high-torque/low-speed) - Eventual characteristics, for the the so desired S-motor...

"It shouldn't be a coincidence that...this new E-motor is not marketed as a Power Functions motor, like the M and XL versions on the same page, are! The prefix 'E' (Energy) is not suggesting any alignment with the other ones, which use size prefixes (M and XL). Also the 4x6x4 form factor, curved only at the topside, suggests a very specific use like in the Wind Power Generators."

[Sariel]

I really think the title of this topic should be edited, as it is heavily misleading right now. I think most of us have known about E-Motor for months, and just like Fernando already stated, its usefulness is rather limited.

Besides, every Lego electric motor can work as a generator too. It's just not that convenient with M and XL motors, as their substantial internal gearing makes it difficult to 'drive' them manually.

Edited October 28, 2010 by Sariel

[rjk1977]

the links are very good info ,thanks for that.

Too bad i hoped it would be useful as an s-motor, but maybe useful just for powering the valves of a motor or something light but need to move fast (gearbox)

i keep it in mind

[Tobbe Arnesson]

it would be directly attached to the electrical motor which i don't think we've seen in any lego motors but i could be mistaken on this.

IIRC both the 2892 9V and the 5101 4.5V has the output directly on the motor axle.

[DLuders]

FINALLY, the Lego Power Functions E-Motor is back in stock at the Lego Education Store website: