aminnich

Just so that everyone is on the same page as I am. I want a power functions/RC/Homemade motor set up that has torque and speed. Currently my truck is running 2 XL motors and is crawling. So the XL motors move all the weight, but I want it to move faster. I understand using a brushless RC motor will just destroy any LEGO in its path. As whole new idea, what would happen if the voltage was from the battery box was increased?

I love this build. Not only does it look great, it is compact and has all the functions included in it. Great job.

:sceptic: UGH... is their anything that could be done to increase the voltage?

no im not using a worm gear. I am using 2 XL motors (not sure what the gear ratio is) and each motor powers each axle.

I understand everything that you guys are saying. But in all od the experiences, when you wants torque you lose all the speed. and when you get speed you lose the power. I want to use my creation of a new motor for a semi truck to pull a trailer with the 42030 Volvo loader. The truck pulls the combination just fine without breaking anything, but I barely crawls. So want the best of both worlds, speed and power.

That is interesting to know.

That would be great. I did not think about the plastic parts getting torn to shreds. And i really dont want to have to make metal gears. if a RC motor does destroy the plastic, i will just stick with the torque-less power functions

Hey guys The micro motor topic got me thinking about power functions and their pros and cons. They are not cheap and they do not have much power behind them. The XL motor gives you some power but not a ton, sure you can gear it down, but then your truck or car (or whatever, im just a vehicle kinda guy) is barely moving. So I am going to try and make a powerful motor for my lego technic models. I am going to guess that it will be a little bigger than the XL motor, but have much more torque. But I need to know some things first. Does anyone know the voltage in the power functions motors? On the LEGO website the RPMs are listed, but no voltage. If you could help me out thanks!!! Any comments or suggests, please comment!!

I use organizer containers by the name brand "stack-on". I got them for about $7 each. I love them, I have 8 filled with my unused technic pieces. I got them at Sears about 2 years ago. http://www.sears.com/stack-on-17-compartment-storage-box/p-9990000045300511P?adCell=REC_1_0

You would need to power each steerable axle independently with a servo or m motor and have each servo/motor on its own channel for the remote. This will allow you to steer crab or ackermann. Lots of different motors and remotes for a simple function, but that is my advice.

I think it is crazy how the builder can not only get the looks of the model, but the functionally and gearing is perfect. It just amazes me. I have tried it and just couldn't do it without super detailed pictures of what it was that I was building.

no, but it would be great to incorporate a differential

Hey guys. I know there are a lot of different ways to power a steerable axle, but which is the best way. The less friction the better. Differential would be preferable. Thanks.

I will try and have it built for this weekend, hopefully

Do you have three XL motors, I would like to show you the option of using three motors to power three axles. If that is what you are going to do

I cant take pictures of my truck with this set up, but D3K was the one that helped me it. I included the link of the drivetrain and how it works. I changed it to make it wider, but in your case (if you have 3 XL motors) you could power all three axles separately using this great setup. http://bricksafe.com/pages/D3K/Ideas/Dual%20driven%20rear%20axles

How much power are you thinking you will need, Because I was given a great idea which works to power each axle separately with 2 XL motors if that makes sense the way I worded it. It includes a gear reduction and I think it would be beneficial for your MOC. If you are interested I an post pictures of it.

I also think you should not sell your unimog and all the attachments you have made for it. Sure it would be a huge money maker, maybe.... but don't. If you are looking to make money to buy, you could sell instructions for how to make all of the different attachments you have made. Now I don't know if you already did this, or how much money it would make you but I think it is a good idea

I followed your original post about your problems with the lift ability for your dump truck. I did not share this with you before because you already had the chassis made, so now that you are restarting I will share this with you, I hope it helps. It helped me. http://www.brickshelf.com/cgi-bin/gallery.cgi?f=525481 It incorporates two LA’s but you still only use one motor. For my trailer I use a XL motor for more power. I hope this helps. P.S. My trailer can not lift a lot of weight. I am planning on making a linkage for it those.

thanks ZBLJ for taking so much interest into my problem. But I have another problem my computer wont allow me to view videos on eurobricks, so it would be amazing if you could please post pictures, either here or on your post about the MOC. Thanks so much im sure it will work out for for me

I sadly don't have a train remote, and I really don't need to get one

JopieK- I have a pretty good understanding of how electronics work, although I really don't want to have to build something for my MOC. If I need to I will know how to do it. Thanks BusterHaus- I did not know what a Geneva mechanism was, but I think that this might work for what I need it to do. The problem is, how would you make something like that with legos? I love the idea, but I am not sure how to make it.

Hey guys, I have been trying to build a mechanism to create the servo motion, but I cant use a servo. It cant return to center, it needs to stay in place. I hope that is not confusing. I tried gearing down a m motor and XL motor very slow, but they but have a recoil and don't stay in one place. It is really hard to explain. If anyone has any suggests, please comment. Thanks!

What do people mean by parallel handling?

I most recently got the 42030 volvo