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Heavy Sport Utility Vehicle (HSUV)
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I'm back again with a new project! (But you new that already didn't you?) This is the Heavy Sport Utility Vehicle (HUSV). It was designed to tackle semi-rough terrain at a decent speed. When I started this project, I wanted it to look like an actual vehicle (not just a chassis),and have a 2-speed remotely-operated manual transmission. I managed to get both, but unfortunately, due to the small size of the vehicle, I was unable to cram in 4-wheel-drive and suspension.
About this creation


As you can see, it has a military-Humvee flair to it. This is my best styling to date. The M-motor, which is used for shifting gears, takes up all of the cabin space for seating, though.



Here is a shot of the shifting mechanism. Basically, the M-motor swings that blue piece around and slams it into the shifting lever, which, believe it or not, works quite well. I was surprised. More on the transmission later.



From the side, you can see just how compact the HUSV really is. The one positive of not having suspension is being able to keep the bodywork really close to the wheels. I still wish I could have fit it though.



Now here's the interesting part. As you can see, the motor and transmission are sandwiched between a network of support beams and structures. The transmission allows the motor to operate the vehicle in a medium-speed cruise on smooth terrain, or in low-speed for trudging through thick carpet - a feat at which this vehicle excels. According to Sariel's gear ratio calculator, first gear is geared down 1:2.334 and second gear is geared up 1.191:1. Also notice how the position of the motor makes 4WD impossible.



Nothing all that special about the back of the HUSV. Note the placement of both the receivers and the trailer hitch (which may be a bit high).



Top-mounted headlights. I couldn't fit them down below on the front bumper. The roof helps to contain the wires.



The hood of the vehicle almost completely covers the servo motor steering. I am pleased to say that the HUSV handles as well as all of my other performance vehicles, with just enough oversteer to keep thing interesting - even at low speeds. Off-road performance was much better than I expected for a vehicle with no 4WD, suspension, or use of the new 2015 transmission parts, which I acquired after I took it apart.

Thanks for reading, I am quite happy with the results, though I may try to make a much more extreme version in the future. Stay tuned!



Comments

 I made it 
  October 31, 2015
Quoting Sam the First Incredible engineering! Great work!
Thanks Sam!
 I made it 
  October 31, 2015
Quoting George Staples Im pretty impressed with all the features you crammed into this little vehicle. A tip if you want to add some simple suspension, make it a solid pivot axle, it adds the features of suspension while keeping it compact.
Thanks! I think the pivoting axle suspension is a good idea, but it would require quite a bit of reworking the frame to keep things stable. Also since I didn't think I would add suspension, I lowered the bodywork for better visual appeal.
 I like it 
  September 3, 2015
Incredible engineering! Great work!
 I like it 
  August 5, 2015
Im pretty impressed with all the features you crammed into this little vehicle. A tip if you want to add some simple suspension, make it a solid pivot axle, it adds the features of suspension while keeping it compact.
 I made it 
  July 28, 2015
Quoting Jeremy McCreary Excellent MOC and write-up, jds. The increase in sophistication from the MOC you posted just 2 months earlier is impressive. You clearly put a lot of thought into it.
Thanks, my previous creation was actually made a while before this one, but I posted it because it performed well. I would have posted a lot more now, but am having trouble w/ the uploading system on Mocpages. Hopefully I can add more soon.
 I like it 
  July 28, 2015
Excellent MOC and write-up, jds. The increase in sophistication from the MOC you posted just 2 months earlier is impressive. You clearly put a lot of thought into it.
 I made it 
  April 24, 2015
Quoting sm 01 Nice work! It looks very robust and powerful.
Thanks! It is, but I wish it were faster. I have a new off-roader that I will post soon that has great speed and performance, and (hopefully) a video.
 I like it 
  April 24, 2015
Nice work! It looks very robust and powerful.
 I made it 
  March 8, 2015
Quoting Declan Egbert Very nice! I love how compact it is and the great styling. You may know me from the Mindstorm's Community as PsychoPuffin. Anyway, I'm glad I could finally find you and your inspiring creations!
Thanks! I didn't know you were on Mocpages! As I understand it, there are quite a few Mindstorms Community users here, but I don't know who they are. I'm glad you could find me, and I can't wait to see your next creation!
 I like it 
  March 7, 2015
Very nice! I love how compact it is and the great styling. You may know me from the Mindstorm's Community as PsychoPuffin. Anyway, I'm glad I could finally find you and your inspiring creations!
 
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LEGO models my own creation MOCpages toys shop Heavy Sport Utility Vehicle (HSUV)


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