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Suspension Truck - 4WD 4WS
First of all, thanks to NXTGeneration's "Nxt Hummer 4WD 4WS". It inspired me to build this vehicle. As the title suggests, this truck has suspension, 4WD, and 4WS.One thing that makes this truck unique is it's suspension. Rather than using pendulum suspension, or independent suspension, I used a modified type of 4 link suspension.This type, only has 2 links, rather than 4. Because of this, the suspension has a little more freedom in it's movements.Two motors power it, one for drive, one for steering.Each end of the driveshafts (power and steering) have 2 universal joints, so the suspension not only can pivot, but it can also move vertical and horizontal.

Posted by:

 1nxtmonster

Created:

 25 April 2010

Rate:

 

Tags:(?):

 smartmove, truck, 4wd, 4ws, suspension, 4, link, 4link, movie, video, program, nxt, lego, tires, motors

4WD 4WS

Instead of using universal joints for steering, I used meshing conical gears that could pivot around each other.These gears are powered by a differential.(See photos for more information.)

Suspension

The modified type of 4 link suspension works really well on this type of vehicle because it uses modules, not a solid chassis.The main module (chassis) is connected to the two wheel modules by means of u-joints and linkages. At the corners of the main module, springs run down to the wheel modules, completing the suspension. Pictures 3 and 4 show suspension travel.

Program and Movie

Here is the program and movie.

Smartmove

I entered this project into the "Human Transport" section of the challenge because this vehicle can improve transportation by COMPLETELY AVOIDING TRAFFIC by driving over rough terrain (such as marshland or the desert), avoiding roads, and thus avoiding traffic.

Comments

10 most recent comments out of 12  [VIEW ALL]

  • 1nxtmonster

  • Thanks! I'm trying to build a faster version.

  • Posted 1120 days and 18 hours ago


  • Albert_Didde

  • I like it, but it really slow. 4 out of 5 stars

  • Posted 1101 days and 10 hours ago


  • tank3350

  • take out the worm gear it makes it go slow.no offense of course.

  • Posted 1099 days and 0 hours ago


  • 1nxtmonster

  • tank 3350 - I made a new version that Is in moderation right now........ It goes much faster!

  • Posted 1080 days and 23 hours ago


  • victor288596

  • @tank3350 i think the reason why 1nxtmonster put the worm gear in is so that the truck will have more torque because gearing down makes the speed decrease but the torque increase so yea

  • Posted 1068 days and 16 hours ago


  • 1nxtmonster

  • victor288596- yeah, that's why I put the worm gear in. It was the first large vehicle I had made, so I wanted it to at least drive. Some testing showed that I didn't need to, but I kept it in anyway.

  • Posted 1060 days and 2 hours ago


  • Donut5133

  • Instructions please.

  • Posted 1010 days and 15 hours ago


  • 1nxtmonster

  • Donut5133- Sorry, I can't post instructions. For something close to this, see Robotics130's How to make a car 4x4 project.

  • Posted 1008 days and 23 hours ago


  • I-am-a-ROBOT

  • can you put the instructions on the web?

  • Posted 908 days and 22 hours ago


  • 1nxtmonster

  • Sorry, I can't post any instructions. Quick question: What should I build next?

  • Posted 715 days and 17 hours ago


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