Subject:
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Re: Is 8860 2 or 3 speed?
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Newsgroups:
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lugnet.build
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Date:
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Mon, 19 Apr 1999 02:38:58 GMT
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Viewed:
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778 times
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In article <371A2C9B.7A43F17F@appstate.edu>, Thomas Main
<main@appstate.edu> wrote:
> I was building 8860 Auto Chassis today:
>
> http://www.lugnet.com/pause/search/?query=8860
>
> and I noticed that the set looks like it was designed for three speeds
> rather than two. The instructions put a plate on the gearbox that
> limits the available gears to two. I noticed that the gears kept
> jamming when I tried to free this third speed. What I want to know is
> whether this is a design flaw that was just covered-up by making this
> third speed unavailable or whether this car really was never meant to
> have three speeds.
The gearbox has three ratios, but the plates around the stick shift only
enable two at once. Two ratios are enabled with the "default"
construction, while a different pair of two ratios is enabled when the
960 motor is added. This makes it (barely) possible for the 960 motor
to move the vehicle.
Later chassis models (8865 and 8880) don't have motorization
instructions; they're just too massive for the motors of their times.
Perhaps 8848 will work with the latest 8735 motor.
Now, did the gears actually jam, or did they just turn with a lot of
friction?
-Tim
--
Tim and/or Shelley Rueger - rueger "at" io.com
WWW page: http://www.io.com/~rueger/
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Message has 1 Reply:
 | | Re: Is 8860 2 or 3 speed?
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| Tim Rueger wrote: <snip> (...) Ah, that explains it. I've never tried the motorization instructions. I have a couple of Mindstorms motors - maybe I'll try one of those. (...) They turned with a lot of friction :) (...) (25 years ago, 19-Apr-99, to lugnet.build)
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Message is in Reply To:
| | Is 8860 2 or 3 speed?
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| I was building 8860 Auto Chassis today: (URL) I noticed that the set looks like it was designed for three speeds rather than two. The instructions put a plate on the gearbox that limits the available gears to two. I noticed that the gears kept (...) (25 years ago, 18-Apr-99, to lugnet.build)
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