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 Robotics / RCX / 2921
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Subject: 
Re: the LEGO CNC-Machine
Newsgroups: 
lugnet.robotics.rcx
Date: 
Tue, 4 Sep 2007 17:26:26 GMT
Viewed: 
19858 times
  
"daniel" <daniel.formatc.at.gmail.com> wrote in message
news:JnuoJz.86D@lugnet.com...
Read the details about the "power Motor". Philo says that it requires
more
current than the RCX can supply.
The smaller geared motors have a much slower rpm at their output.

right, that's why i'm planning to have one rcx output drive a polarity
switch
that connects the power motor to a normal battery box / 9v adaptor without
current limiter.

I am trying to see this in my head. Your driving a polarity switch with a
motor and the switch will control the power motor? Is this on each axis? I
am thinking about the amount of time it will take to start and stop the
axes. How will you control the position of the polarity switch. Forward or
reverse is easy, but off is in between.

Bob



Message has 1 Reply:
  Re: the LEGO CNC-Machine
 
(...) no no, i will only use the indirect control for the main spindle, which will use the power motor. the axis drives will use normal technic motors (from the mindstorms set). right now i'm designing some cutters, see my other thread in the (...) (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)

Message is in Reply To:
  Re: the LEGO CNC-Machine
 
(...) right, that's why i'm planning to have one rcx output drive a polarity switch that connects the power motor to a normal battery box / 9v adaptor without current limiter. (17 years ago, 4-Sep-07, to lugnet.robotics.rcx)

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