Subject:
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Re: Lego RC set 8369
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Newsgroups:
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lugnet.technic
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Date:
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Fri, 29 Apr 2005 07:48:19 GMT
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Viewed:
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6806 times
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In lugnet.technic, Maico Arts wrote:
> Patrick Levy schreef:
> > This wheels doesn´t seem to fit in regular lego axles, Is that correct?
> >
> > So I can´t use the dirty crusher motors and RC controls to custom my own
> > Race car?
> >
> > Patrick
>
> You can use a dirtcrusher, but you have to use it as the chassis of your
> vehicle. You can connect to the parts of the dirtcrusher with technic
> pins and thus build your own exterior of the car.
>
> There is a way to use the dirtcrusher wheels by using two 24 tooth gears
> and 4 axles in the 4 wholes of this 24 tooth gear. Those 4 axles will
> form the cross-axle needed for the dirtcrusher wheels. Not a beauty, not
> strong, but it works... But I wouldn't recommend it
>
> Greetings
> Maico Arts
I've tried it now and it didn't work well, perhaps i got carried away too.
Anyways i figured that a model powered by the motorpack from DC with the wheels
from 8466 would be really cool, at least on paper. I built a frame to support
the motor using regular beams mostly and a front end consisting of the steering
and reciver from DC built just as in DC. Then i connected the 2 parts (front end
and back end with motor.
The wheels was of course geared down though i don't know how much since the math
temporarly escaped me, maybe 1.75. The power was transfered from the motor using
a large gearwheel as you described then via a differential linked the the
boogies. I thought boogies would be best since there was no room for a second
driveshaft. The axle that went into the boogies had an 24t crown on it which
turned a 8t connected to a second 8t which turned another 24 on the wheelaxle.
This meant that the boogies weren't gearing anything just tranfering power.
This is when the problems started, As you can imagine this was quite a big thing
which was really heavy. Upon starting the motor i noticed that the model wasn't
moving. It turned out to be the crowngears in the boogies not gripping hold of
the pinions even though they were at the right distans. So i removed the
boogies, put longer axels on the differential and turned on the motor again.
Now the gears inside the diff skipped. Of with diff, in with 24t gear. Now the
8t gear trying to turn the 24t gear skipped. :( This is when i decided to cancel
the project. Perhaps one day i'll rebuild something like this with lots of more
gearing but that'll take some time. For now i'm planning of turning DC into a
tank by putting regular pieces on it and build a turret. Still working on gun
though.
I could have succeeded if i just had put more gearing into it but i wanted speed
as well. Unfortanly though the motor was up to it, the gears weren't.
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Message has 1 Reply:
 | | Re: Lego RC set 8369
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| Hello Tommy, (...) This I haven't tried yet: using a DC to power Technic wheels (...) DC motors are quite strong, btw: both sides have their own motor. Inside this motor there is some gearing which id defenitly stronger that the regular technic is. (...) (19 years ago, 29-Apr-05, to lugnet.technic)
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Message is in Reply To:
| | Re: Lego RC set 8369
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| Patrick Levy schreef: (...) You can use a dirtcrusher, but you have to use it as the chassis of your vehicle. You can connect to the parts of the dirtcrusher with technic pins and thus build your own exterior of the car. There is a way to use the (...) (19 years ago, 7-Feb-05, to lugnet.technic)
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