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Black Widow (Crawling truck)
About this creation


Here is my.. other title photo, I had a hard time deciding which photo to use. So I added both! There is a video at the end.



So this truck started out with my idea to make steering from linear actuators. I built the axles, and the truck body soon followed. I had 4 LA so I decided that I might as well put 4 wheel steering in it. Soon it turned into a jacked up redneck pick up. If I had a truck, it would be this one. I also consider this my first attempt at a trial truck.



Specs of the truck:

  • Drive: 2XL motors

  • Steering: 2m motors, 4 LA

  • Winch: 1m motor

  • 2 sets of lights

  • 3 IR recievers

  • 1 rechargeable battery box

  • Weight: 1.5kg

  • Dimensions(l X w X h) 46cm X 21cm X 21cm





Jacked up rear end. I'ma need one heckofa drop down hitch to tow that...













Front bumper.







Suspension.. Aw yah!







It has tail lights.



Head lights too.





Steering. 4 wheel steer. This was more of a necessity because it has NO differentials, which really limit turning radius.



Also it can crab steer. The front and rear steering systems are independent, providing lots of "agility" for climbing rocks.









Tail lights again.



Head lights.. again



This has been officially named "the rats nest" Lots and lots of wires.



Close up of suspension



$ Money shot.. worth about 5 hrs of my time ;)



Suspension minus the wheel.



The base idea for the truck, this axle. I have a worm gear drive mounted in it for crawling. The gear ratio is 1:24 right now. It will go basically anywhere the driver is crazy enough to take it.



I have the axle built for modding. This means that I made it so that it can be pulled off in 2seconds. Two bushing, 2 trailing arms, and the motor wire, and it comes right off. I have another gear ratio for it 1:1.667.



Money shot with out the axles.



Steering gears, and the winch off to the right. I originally had 2 normal batter boxes mounted under here, but I found that they were too heavy for the truck to climb efficiently.



The two universals that are hanging down go to the LA on the axle for steering. The best part about having LA for steering is that they don't bog down like normal steering, and I don't have to have a clutch gear to keep my motors safe. I also didn't have to gear the motors down to make the steering work.



The winch is geared down to 1:40.008. It turns painfully slow, but It will lift the truck straight up off the ground. I also added a clutch gear to the front so it can free wheel. That was necessary also.

VIDEO:



I am going to keep modifying this truck, and making it better. I am open to any suggestions. Thanks for looking!



Comments

 I like it 
  July 28, 2014
Really cool. Howz this? http://mocpages.com/moc.php/393420
 I made it 
  October 4, 2012
Quoting Matthew K. Hhhmmmm I'm not really a car guy, so I dont understand half of what you said above. But if you could fit this chassis into the sleek body styling of your F-150 Raptor, then you would have created my dream car ...but in Lego, which makes it even better :D
That would be a great idea. This truck is bigger than my Raptor, but I would like to see a high jacked Raptor. Maybe that can be crawling/trial truck mark II.
 I like it 
  September 24, 2012
Hhhmmmm I'm not really a car guy, so I dont understand half of what you said above. But if you could fit this chassis into the sleek body styling of your F-150 Raptor, then you would have created my dream car ...but in Lego, which makes it even better :D
  August 29, 2012
Thanks for the fast reply! :)
  August 27, 2012
Hi George! I have a question! How can I put a window in the video on youtube, like in this video at 0:39? Thanks! :)
 I like it 
  August 26, 2012
Very impressive! If you will remove the worm gear consider to use one of these design to reduce the torque on the ujoints: http://www.flickr.com/photos/sam2442/5375692758/ http://www.brickshelf.com/gallery/thirdwigg/KenworthT55/img_8655.jpg
 I like it 
  August 7, 2012
very nice, the worm screws are a bit strange on a trial truck, but it's still good.
 I made it 
  August 4, 2012
Thanks everyone! I'm going to see if I can improve this more.
 I like it 
  August 2, 2012
Wicked rig!
 I like it 
  July 31, 2012
Very cool! I like the overall shape and the steering with actuators is a very good idea! :)
 I like it 
  July 29, 2012
Nice truck.
 I like it 
  July 29, 2012
ravishingly beautiful!
 I made it 
  July 27, 2012
Quoting Fritz K . This is incredible, George! You truly need to be a mechanical engineer. This thing is awesome becuase of its brilliant and intricate inside, and absolute beastiness on the outside. I really like the name, too, "Black Widow". Fits the truck exactly. Perfect build, I love it! 1/0 :)
Thanks Fritz! I should be an engineer. I just need to go to school and learn all that math stuff. :)
Quoting John Daniels Wow it looks awesome! The color scheme is awesome. I have a suggestion, it looks like the steering system causes torque on the drive axle. (I haven't watched the video yet so I don't know if it is). If you could lock the whole wheel hub (for lack of a better term) around the pivot point of the UV joint it should make the steering system more efficient. I hope it helps. --Ian
Thanks! The actuator doesn't put too much pressure on it. My real problem is that the tire rubs on the actuator if it turns too far.
Quoting MortalSwordsman Absolutely fantastic. You are clever boy ;)
Thanks M!
Quoting Chris Melby George, I had to take a minute and really read this, it is pretty much the best technic build on planet Earth! I think the thing that really impresses is the steering, what an ingenious use of parts to use those actuators like that. The cleanliness of the build is second to none also, the new Lego set has nothing on this, seriously, nothing! Chris
Thanks very much Chris! Yes, that new Lego set is weak sauce compared to this truck.
Quoting Nick Barrett Very good, and it looks effective! The LAs must give it a very smooth steering action - great idea.
Thanks. Yes it does provide smooth turning, and the best part is I didn't have to try and figure out a tie rod for it.
Quoting Kyle A. I would add bigger tires and a moded buggy body like real crawlers. Good wook tho.
Thank you. The problem with adding bigger tires is that these are the 94.8x44R tires. The biggest balloon tires lego makes. The only other tires that might look ok would be the power puller tires. I really like the truck body, although a buggy body would provide greater tire clearance.
Quoting Chrismo Brickfanatic Really great work, George! As a result of your MOC, i just spent a 100 bucks on more parts. Keep it up, you are a great inspiration.
Thanks for the comment! You have some talent too, I can't wait to see what you come up with from the $100 in parts!
Quoting Everyone %YourCommentHere%
Thanks everyone for the kind words. I am very glad to see you all like this. It has to be one of my favorite builds so far.
 I like it 
  July 27, 2012
Really great work, George! As a result of your MOC, i just spent a 100 bucks on more parts. Keep it up, you are a great inspiration.
George Staples
 I like it 
kenneth rattledge
  July 26, 2012
excellent truck, great technical functions, like the idea of using the dampers for suspension, nice one.
George Staples
 I like it 
Chris Melby
  July 26, 2012
George, I had to take a minute and really read this, it is pretty much the best technic build on planet Earth! I think the thing that really impresses is the steering, what an ingenious use of parts to use those actuators like that. The cleanliness of the build is second to none also, the new Lego set has nothing on this, seriously, nothing! Chris
 I like it 
  July 26, 2012
this is sooooo awesome!!!!! I love the steering system and the suspension. 5/5 ~Ma$on Mc]{echn!e~
  July 26, 2012
I would add bigger tires and a moded buggy body like real crawlers. Good wook tho.
 I like it 
  July 26, 2012
immpressive truck i wouldnt know where to begin with all those functions love it 10/10
 I like it 
  July 26, 2012
Very good, and it looks effective! The LAs must give it a very smooth steering action - great idea.
 I like it 
  July 26, 2012
=D this is awesome XD
 I like it 
  July 26, 2012
Amazing! :)
 I like it 
  July 26, 2012
Love your technic MOCs. That suspension is the best I've ever seen.
 I like it 
  July 26, 2012
Awesome build and color scheme.
 I like it 
  July 26, 2012
Man this is amazing! All the functions are awesome! Excellent work!
 I like it 
  July 26, 2012
Absolutely fantastic. You are clever boy ;)
 I like it 
  July 26, 2012
Nice Job.. There are some cool ideas in this truck that I have not seen before mechanically its very sweet. Henry :P
 I like it 
  July 26, 2012
Wow it looks awesome! The color scheme is awesome. I have a suggestion, it looks like the steering system causes torque on the drive axle. (I haven't watched the video yet so I don't know if it is). If you could lock the whole wheel hub (for lack of a better term) around the pivot point of the UV joint it should make the steering system more efficient. I hope it helps. --Ian
 I like it 
  July 25, 2012
This is incredible, George! You truly need to be a mechanical engineer. This thing is awesome becuase of its brilliant and intricate inside, and absolute beastiness on the outside. I really like the name, too, "Black Widow". Fits the truck exactly. Perfect build, I love it! 1/0 :)
 
By George Staples
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