Subject:
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Re: My latest Technic MOC or What to do with all those wild coloured bent beams
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Newsgroups:
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lugnet.robotics
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Date:
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Sat, 22 Sep 2001 20:08:54 GMT
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Original-From:
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Simon Bogaert <simon.bogaert@advalvas.be*StopSpam*>
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Viewed:
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561 times
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Wow!
You did a very good job there! I especially liked the way you created the
hood (nice idea to use the ply-able tubes for the rounding). The model
resembles the real thing very much. The only thing(s) I want to know: What
did you do to the 24t bevel gear that drives the differential? It seems
like you glued something to it, as to stop it from slipping... And how did
you get the variable transmission? Do you have dat-file of that?
This thing really hit me whith astonishment...
Simon
----- Original Message -----
From: "John Barnes" <barnes@sensors.com>
To: <lego-robotics@crynwr.com>
Sent: Saturday, September 22, 2001 7:07 PM
Subject: My latest Technic MOC or What to do with all those wild coloured
bent beams
> I have uploaded some pics of my latest Technic MOC - a Technic
> model of an MTD Lawn Tractor (the real one also pictured).
>
> brickshelf.com/cgi-bin/gallery.cgi?f=7122
>
> The model is built to a scale of 1 stud = 2 inches. There is a 9 v battery
> pack under the seat where the real battery would go. It drives a 9v gear
> motor continuously. The motor drives the cutting blades and a
> continuously variable transmission which has a ratio range from -1 to
> +1. The output from the transmission goes through a 9:1 reduction
> on the way to the rear wheel's differential. The transmission is
> controlled by the red lever sticking out of the right rear wheel arch.
> The cutting deck is driven via a pulley connected to a drive from the
> gear motor. In true style, I had to arrange for a long drive belt which
> winds its way around all the pulleys of the deck. I had to make this
> drive belt. It is actually 19 1/2 inches of black elastic obtained from a
> fabric store. The ends were cut with a brand new xacto knife blade
> and then glued end to end with super glue. It is suprisingly strong.
>
> The bodywork was the real challenge, particularly the engine compartment.
> Trying to get that swoopy roundness you can see in the picture of the
> real tractor was a lot of fun. And quite frankly, I gave up on trying to
> imitate the headlights! But I managed to use a lot of the wild coloured
> beams from the various cybermasher sets I've collected one way or
> another.
>
> LMKWYT
> John Barnes
>
> ps:Sorry to have to post here, but the rest of lugnet will not allow me to
> post anymore.
>
>
>
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