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"Philippe Hurbain" <philohome@free.fr> wrote in message
news:JpHqA1.FM@lugnet.com...
> I have updated my website with a presentation of the new Power Functions
> system,
> including:
> # Overview of Power Functions range
> # Description of working
> # Comparison with older 9V mini-motors
> # LDraw and LeoCAD part files
> http://www.philohome.com/pf/pf.htm
>
> My motors comparison page was also updated to include data for Power
> Functions
> motors and 9V train motor (the latter thanks to the work of Stefan Vorst)
> http://www.philohome.com/motors/motorcomp.htm
Has anyone taken apart their PF motors/control units yet to see how they're
built internally?
Your page seemed to suggest that someone had actually taken them apart, but
there was no more information on there.
Apart from the obvious separate control of two motors function, could there
be any other functions C1 and C2 could derive uses for? In the Ferris Wheel
set, which is also a Powerfunctions model, but has no IR controller or
receiver, reversal of the motor was dependant on the direction of the
battery switch which kind of limits it's functionality.
I'm wondering perhaps TLG didn't get it made early enough or didn't think
people would want an IR controlled ferris wheel. But I would like it very
much if motors, IR controllers, etc, could be also purchased separately for
sets like the Ferris Wheel.
I think the elimination of the motor terminals was a smart idea, it actually
enhances flexibility of models, rather than limiting them and causing people
to have to build around the space occupied by an extra terminal pad, or have
to deal with bulky and unsightly bumps in the motor profile for a mold.
One very desirable add-on element I could think of would be a pressure
switch or contact switch that can switch a motor connected to it on/off, the
same way NXT touch sensors work, it would be a pretty good expansion into
the Mindstorms basic concepts that are used with NXT, without getting too
complicated.
If they make it properly, they could have a slider which selects whether it
works to switch the motor on or off, and still make it fairly compact.
Cheers ...
Geoffrey Hyde
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Message has 1 Reply:
 | | Re: Power Functions presentation
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| (...) I did it, I'll try to update my page with some internal photos. (...) The battery box delivers power through power lines (used by IR receiver) if the switch is not in neutral position, and C1 C2 whose polarity depends on switch position (and (...) (17 years ago, 10-Oct-07, to lugnet.robotics.nxt, lugnet.technic)
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