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redshift
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08.19.2010, 10:08 PM

The draglink is necessary. If you'll refer to post #15, my original setup was with the servo savers instead of the standard horns. I was hoping to simplify things by using independent left/right servo savers. But as I mentioned in that same post I was still using my old dished 3/4" offset rims. The added leverage imposed on the knuckles was enough to pull both front wheels inward (extreme toe-in) on throttle, and outward on braking. Given stiffer direct-mount style servo savers it would work, and it may have worked much better with the zero offset rims. I decided to try solid horns before I made the new wheels, so that combo never got tried. Occasionally I do try to reinvent the wheel, and occasionally it works :) but not this time. Some laws of nature you don't mess with...

The draglink was added purely to keep the front wheels parallel, but as an added bonus I do have the option of running one or both servos. It did require some subtrim to get the servos symmetrical, same as I had to do without the draglink. And having two savers linked should firm up response quite a bit. Steering is plenty fast even on 5V, I plan to run a Hyperion BEC on 6V soon. Running 6S I'd prefer to disable the MMM's BEC. I am much happier with the new steering, I haven't run it yet but I have no doubt this will be the ideal setup for the long term. Just have to look into the servo that got damaged, it's a bit notchy now and I hope it only needs a gearset. I know the 5645s ain't much compared to the tierod snappers most of you run, but having 2 makes that pretty much a non issue.

Anodizing probably won't happen, you have to keep in mind the finish isn't that great on the majority of the surfaces, paint hides all ;)

Thanks for the comments 'crash
   
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mistercrash
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08.20.2010, 10:10 AM

I totally forgot about your first experiment without the drag link. Sorry 'bout that one. It's flawless then That steering system looks really tight, no slop at all. The little things you think of in this build is awesome, like turning down the heads of cap head screws so the bellcrank bearings slip on them. I love this kind of stuff.


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