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Self Propelled Lego Crop Sprayer
Generic Self Propelled Lego Crop Sprayer with motorised folding booms.
About this creation














I was in a bit of a rush to get this MOC recorded so that I can use some of the parts for my updated Stalwart, so apologies for the poor video.

Model has independant suspension all round, opening cab doors, 1 Medium motor for steering, 1 XL for drive and another Medium for opening and raising/lowering the booms. Works with many different lego tyres - choice depending on the crop being sprayed.

The boom mechanism (best seen in the video) part of this was the reason I made this model, the steering still needs a little work - I found it very hard to made a sprung high clearance machine that didn't want to dive into the ground under power. A lighter battery box with more weight towards the rear would help this. I will revisit this model at a later date.







Comments

 I like it 
  July 29, 2009
very cleaver ont he boom mech, i muself strugle on steering with trucks or vehics, but, you could try some sort of portal axle that has gearign down a single colum, or chain for more clearance, would be interseting none the least
 I like it 
  July 28, 2009
That looks really cool, and the fact that it can perform all those functions is even more impressive. Great work!
 I made it 
  July 28, 2009
Thanks all. The first build of this model (without raising and lowering of the booms) only took about 8 hours, but testing showed the steering was not going to work so I had to rebuild, which took a lot longer. The steering is still not properly functional, I have given the wheels a degree of toe in so that when travelling forwards the model tracks true but I am not happy. Real sprayers tend to use hydrostatic drives to each wheel, which are supported on individual legs to give crop clearance, so solid axles are out. Any ideas welcome.
 I like it 
  July 28, 2009
Brilliant, great job
 I like it 
  July 28, 2009
Must have taken quite a while to make this awesome creation. I am astonished. Truly amazing!
 I like it 
  July 28, 2009
like how the guy below me said..the spraying booms are awsome..i dont know much about crop sprayers but this one certainly looks good
 I like it 
  July 28, 2009
Realy awesome work on the spraying booms. didnt expect to see it working like that. well done.
 I like it 
  July 28, 2009
That is incredible! Great job with the sprayer arms extending-out, looks real! I have changed tires on these machines a few times, it's tricky because there isn't a good place to place the jack. Keep up the good work. Later!
 
By Lego Stalwart
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Added July 27, 2009
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