[HELP] PF Motors and Gearing

[Angeli]

Hi guys. I am making 1x2 48x48 diorama that will present an alien, robot city. A street with two houses. I would like to make it all movable, with a lot of tehnics gear and axle moving. In one of the houses I am going to put motor.

Now, the gear will move just for purpose of moving, it will have no meaningful function (expt to move and to attract attention. I have few hundred of them, with ton of axel and all types of pins, lot of liftarms, tehnics bricks - etc, all that is needed.

Now, the question: if there is no other task (lifting or similar), and the only task is moving per se, what motor will be enough?

Should I split gear into two sections (pushed by two motors?)

What motor should I buy? I will buy it via bricklink or in a 2015 tehnics set (please recommend one)

Can you provide links with clever moving contraptions with gear, where gear is visible?

Please note that I am a total beginner when tehnics is in question, but I am very experienced builder, so I hope learning will be fast and I will be able to adapt (resistance is futile:)) :)) :))

Some basic examples how bigger and smaller gear function together and what effects they can make would be wonderful

I would also like to know how can I use one motor for two tasks (two groups of gear). Which brick to use for that

Any additional advice is most welcomed

I have a deadline for this moc - end of February

I will have more questions :)

8. If I have one axle from the motor, and 7 things (flowers) that I need to rotate - how do I do that? Thay can rotate with same speed.

My main question is how to multiply drive from one axle to 7 gears that are not very close

...hope I am making sense...

[Blakbird]

If there is no significant load on your functions, then you can use pretty much any motor. I'd recommend a Power Functions Medium motor. For general visual ideas of how to use gears I recommend Isogawa's series of Technic Idea books. For more detailed information, I recommend Sariel's Unofficial Technic Builder's Guide. Beyond that, it is not really feasible for someone to explain how to achieve your goals without knowing precisely what they are. Your best avenue would probably be to purchase a medium sized motorized Technic set and build it from the instructions. Such a model would have examples of how to do most of what you are asking.

[BobSmithHello55]

Sariel has a useful Gears Tutorial on his website Sariel.pl .

[nerdsforprez]

Yes. Research. YouTube also has a wealth of information on the very thing you are discussing

[Blakbird]

You can also look at the Technical Fundamentals section of Technicopedia and look at the animations of the functions of various sets.

[Captainowie]

I will second the Isogawa reference. He also makes a pay-if-you-like-it copy available from his website http://www.isogawastudio.co.jp/legostudio/toranomaki/en/download.html

If I understand correctly what you want, I think your best course of action is to have one motor driving a 'backbone' mechanical power distribution system - a long axle that goes reasonably close to all your functions (or two parallel axles, mechanically connected together) driven by the motor. Then you can just pick off the motion from the closest point. I hope that makes sense.

Don't forget that as well as the motor you're going to need a battery box, and possibly a switch depending on how accessible you place the battery box. If you're not terribly interested in the Technic theme, I wouldn't recommend getting your motor from a set, as generally only the larger more expensive sets are motorised out of the box. I'd suggest getting the Power Functions Motor Set http://brickset.com/sets/8293-1/Motor-Set, as pretty much everything there will be useful to you.

Finally, don't forget to post pictures of what you've done!

[Angeli]

thank you, guys

[Angeli]

if any begginer stumbls on this topic, here is also something that could help:

[Angeli]

Hi guys, I have another question:

This is the part I use:

I need the same part, but with axle (cross) whole in the middle, not the pin ("o") one. IS there such a part?

And if not, what could replace it?

This is idea, but as it is a pin hole, there is not enough friction inside it to make the movement possible when parts touch:

[Blakbird]

Hi guys, I have another question:

This is the part I use:

I need the same part, but with axle (cross) whole in the middle, not the pin ("o") one. IS there such a part?

And if not, what could replace it?

No, there is no such part. But if you need a right angle that is connected to the axle, you could use the old toothed connectors like this, but they will not be in the same plane.