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Subject: 
Friction on Rotation Sensor
Newsgroups: 
lugnet.robotics
Date: 
Tue, 25 Jun 2002 20:54:27 GMT
Viewed: 
836 times
  
Hi, All.

I'm having a problem with a rotation sensor and I was wondering if somebody
already solved that.
I have 2 rotation sensors. One of them works fine. The other one works well
as a sensor but the rotating axle has considerable friction. Since I usually
gear it down for precision, the torque generated by this friction is
"amplified" and is causing some trouble. For example, if I use a clutch gear
it usually slips.

Is there anyway I can solve that without disassembling the rotating sensor?
I thought about lubrification but I'm afraid to damage it. Could this
friction reduce with time due to usage?

Mauro Vianna



Message has 4 Replies:
  Re: Friction on Rotation Sensor
 
Here is a picture of the internals of the Rotation sensor. I don't know if this will help you. (URL) Fay THE SHOP (URL) Vianna" <mauro_vianna@hotmail.com> wrote in message news:GyA4r2.612@lugnet.com... (...) somebody (...) (22 years ago, 26-Jun-02, to lugnet.robotics)
  Re: Friction on Rotation Sensor
 
Hi Mauro, Am Dienstag, 25. Juni 2002 22:54 schrieb Mauro Vianna: ... (...) ... the same for me. I thought of sending it back to the german distributor of Lego DACTA from where I got mine. Regards, Michael. (22 years ago, 26-Jun-02, to lugnet.robotics)
  Re: Friction on Rotation Sensor
 
(...) I'd describe the problem to LEGO customer service, they'll probably replace it. Jürgen (22 years ago, 26-Jun-02, to lugnet.robotics)
  Re: Friction on Rotation Sensor
 
Are you sure it is the sensor itself? We have found that the axis is often "off" a bit from canonical LEGO spacing, and if built into a structure, binds quite a bit. But if you assemble it so that the body (blue) of the sensor can "float" with (...) (22 years ago, 26-Jun-02, to lugnet.robotics)

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