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Subject: 
Re: RCX 'brick connectors' and how-they-work??
Newsgroups: 
lugnet.robotics
Date: 
Tue, 14 Sep 1999 13:17:15 GMT
Original-From: 
Jonathan Knudsen <jonathan@oreillySTOPSPAM.com>
Viewed: 
1894 times
  
At 09:38 PM 9/13/99 GMT, Michael Gasperi wrote:
> 
> Terry King <tking@together.net> wrote in message
> news:MPG.12473151db68fe15989691@lugnet.com...
> > ISTHERE an online description of these connectors
> > and how they work on sensors and actuators??
> > ISTHERE anyone online selling additional or modified
> > sensors and/or actuators?
> 
> My pages goes into a lot of this type of stuff.
> http://www.plazaearth.com/usr/gasperi/lego.htm
> LEGO has a couple of patents on the connector, but I don't have the numbers
> handy.  They show the details of how they work.

Here's one of the patents:

  http://www.patents.ibm.com/details?pn=US04552541__

> > ISTHERE any source for equivalent brick connectors other
> > than the buy-and-chop alternative??
> 
> I buy 9V motor wires from LEGO Shop at Home and cut them in half or use LEGO
> Electric plates and cut them down to 2x2 sizes. There are other ways but
> these are the best.

I agree with Mike--cutting up wire bricks (motor wires) is
probably the easiest thing. There are four methods that I
know about:

1. Cutting wire bricks in half.
2. Slicing up electric plates.
3. Use 4/40 machine screws. I've used this method; it's a little
   more tricky than I thought--I had to shape the head of the
   screws with a file to get them to fit right.
4. Use 3/16" copper tubing.

The main thing with #3 and #4 is to make sure to put
the screws, or tubing, in opposite corners of a 2x2 plate.
That way you'll make a connection regardless of how
the wire brick is oriented on your sensor or actuator.

Jonathan
-----
LEGO MINDSTORMS Robots
  http://www.oreilly.com/catalog/lmstorms/
  http://www.amazon.com/exec/obidos/ASIN/1565926927/



Message has 1 Reply:
  Re: RCX 'brick connectors' and how-they-work??
 
Thanks, Jonathan && Others... I'll look at the patent. With all the 'clones' out there, is it likely that Lego would complain if someone made compatible-but-not- identical connectors?? How do they handle the Clone Market?? Couple of questions, (...) (27 years ago, 14-Sep-99, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.legos)

Message is in Reply To:
  RCX 'brick connectors' and how-they-work??
 
I was just looking at this, and realized why the male posts have only partly-exposed connectors. ISTHERE an online description of these connectors and how they work on sensors and actuators?? ISTHERE anyone online selling additional or modified (...) (27 years ago, 13-Sep-99, to lugnet.robotics)

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