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Posted by Matthijs on April 30, 2006, 6:04 am
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Hello,
I used to have an old Lego train (typenumber 7730) which ran on 12V.
As a young boy I managed to destroy the train's motor.
I'm trying to buy a used replacement, but I'm also thinking of buying
a new 9V motor and modifying the Lego transformer module (I know a bit
about electronics, can handle a soldering iron).
Questions:
- is, except for the 9 or 12 volt part, the 9V-motor compatible with
the 12V-motor? Track width, power/ground via a middle rail?
- Anyone ever modified a 12-volt Lego transformer to control a 9V
motor?
Thanks,
--
Matthijs
vanaalten@hotmail.com
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Posted by Dean Earley on May 2, 2006, 6:46 am
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Matthijs wrote:
> Hello,
>
> I used to have an old Lego train (typenumber 7730) which ran on 12V.
> As a young boy I managed to destroy the train's motor.
>
> I'm trying to buy a used replacement, but I'm also thinking of buying
> a new 9V motor and modifying the Lego transformer module (I know a bit
> about electronics, can handle a soldering iron).
>
> Questions:
> - is, except for the 9 or 12 volt part, the 9V-motor compatible with
> the 12V-motor? Track width, power/ground via a middle rail?
No.
The 9V is delivered via the rails and requires metal track.
Track gauge and fixing to the wagons is the same though.
> - Anyone ever modified a 12-volt Lego transformer to control a 9V
> motor?
The answer above negates this :)
--
Dean Earley (dean.earley@icode.co.uk)
i-Catcher Development Team
iCode Systems
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Posted by Matthijs on May 2, 2006, 11:53 am
Please log in for more thread options On Tue, 02 May 2006 11:46:40 +0100, Dean Earley
> Matthijs wrote:
> > Questions:
> > - is, except for the 9 or 12 volt part, the 9V-motor compatible with
> > the 12V-motor? Track width, power/ground via a middle rail?
>
> No.
> The 9V is delivered via the rails and requires metal track.
Mmmmm... :-(
Well, that limits my options a bit. At least I can skip the difficult
decision making process and start looking for a good used 12V motor...
Thanks,
--
Matthijs
vanaalten@hotmail.com
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Posted by Neil on July 3, 2006, 10:09 pm
Please log in for more thread options Hi Matthijs,
Well, the 9v motor won't be compatible, unless you solder 4 pick ups on the
motor.
This link may help: http://www.fgltc.org/bwoabs/9v_12v/9v_12v.phtml
It should show you how to convert a 9v motor into a 12volt one (after some
tweaking)
Track width is the same.
Enjoy, Neil
> On Tue, 02 May 2006 11:46:40 +0100, Dean Earley
>
> > Matthijs wrote:
> > > Questions:
> > > - is, except for the 9 or 12 volt part, the 9V-motor compatible with
> > > the 12V-motor? Track width, power/ground via a middle rail?
> >
> > No.
> > The 9V is delivered via the rails and requires metal track.
>
> Mmmmm... :-(
>
> Well, that limits my options a bit. At least I can skip the difficult
> decision making process and start looking for a good used 12V motor...
>
> Thanks,
> --
> Matthijs
> vanaalten@hotmail.com
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>
> I used to have an old Lego train (typenumber 7730) which ran on 12V.
> As a young boy I managed to destroy the train's motor.
>
> I'm trying to buy a used replacement, but I'm also thinking of buying
> a new 9V motor and modifying the Lego transformer module (I know a bit
> about electronics, can handle a soldering iron).
>
> Questions:
> - is, except for the 9 or 12 volt part, the 9V-motor compatible with
> the 12V-motor? Track width, power/ground via a middle rail?