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Steering (the bane of my existence)
About this creation
So this is the frame for my T800 Dump truck, but I am having problems with the steering. The steering is towed in. If any of you have some ideas to fix this, I would gladly appreciate it. The top motor is for the steering, it is worm gear drive to make it slower. I also have a motor underneath in the center of the frame for the front drop axle.














Comments

  March 28, 2013
Looks as if the rack is too far forward, and that instead of the inner wheel turning more, the outer one does.
George Staples
kenneth rattledge
  January 29, 2012
I have had a few issues myself, not with power functions, but with trying to get the steering rack to clear a front diff, I ended up with a rack 1 hole in front of normal, then a the steering arms coming of the side of the rack instead of the top, so keeping the arms parallel.
 I made it 
  January 29, 2012
Hey every one thanks for the ideas, I have a new prototype in my head, and it should work fairly well. I will try moving the rack first, as this seems to be the simplest fix.
 I made it 
  January 29, 2012
Quoting Zane aka skip2mylu looks to me that your steering rack is to far forward a stud back or even half a stud should fix it. that or its to high up on the frame, ive had some issues with thos swingarms and hubs seems they only work built just so. hope this helps. on a dif note. do the wheels toe in with it centered or just as turning?>
It is towed in when its straight also.
  January 29, 2012
P.S It looks like you don't have a clutch on your steering motor? If you're going to take this apart to move the rack you may want to add a clutch in too.
 I like it 
  January 29, 2012
A very impressive start. I have very little experience of power functions but Senator's advice (below) is spot on. Move the rack back if possible. Good luck. I can't wait to see finished.
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  January 29, 2012
The 'rack' in your rack & pinion system is very far forward, try moving it back a stud or two. Also, try placing it where it'll go once mounted before you build all the framework and gearing around it.
  January 29, 2012
My only thought is don't use the ball joint system - they are not good for holding the steering tight and you get 'toe' as you rightly say. But without using them, suspension is much harder to do. My RC has no suspension (it's too heavy anyway) and uses an old fashioned technic rack.
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  January 29, 2012
DANG! thats incredible! i am useless for steering systems. looks like a really nice truck. i cant wait to see it finished!
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  January 28, 2012
looks to me that your steering rack is to far forward a stud back or even half a stud should fix it. that or its to high up on the frame, ive had some issues with thos swingarms and hubs seems they only work built just so. hope this helps. on a dif note. do the wheels toe in with it centered or just as turning?>
 I like it 
  January 28, 2012
Well, I am useless at power functions. But the way I see it, you should probably take out the M-motor and instead put the micro-motor in. That is probably the easiest way, for you just have to use a gear that would connect to the steering rack.
 
By George Staples
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LEGO models my own creation MOCpages toys shop Steering (the bane of my existence)


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