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M.R.C. 'Loco Genie' (TM) Simple & Affordable Battery Or Track Powered R.C.
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 Posted: Sun Jan 26th, 2020 08:30 pm
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Michael M
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Does anyone know why the motor needs to be isolated?


I'll be installing the Loco Genie in a Bachmann On30 2-6-0,
over the next couple of days.

Looks to be fairly straight forward. 


Need to drill some holes in the tender floor for the speaker.




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Michael
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 Posted: Mon Jan 27th, 2020 12:40 am
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W C Greene
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Michael, the motor needs to be isolated to prevent possible shorts with wired track/wheel pickups.
If you are running on BPRC then the pickups on the loco need to be disabled.
There are many smart fellows here who could explain this better,
but getting rid of all track pickups is the way I have done it since I started down this trail.
I would think that just getting rid of the pickups would be the same as isolating the motor.

??? ??? ???

Woodie




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 Posted: Mon Jan 27th, 2020 02:56 am
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Michael M
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Thanks Woodie,

The wheel pickups have been removed.


Here are some photos of what needs to go into the tender.










Please ignore the messy workbench. 

Just can't seem to keep it neat.




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 Posted: Mon Jan 27th, 2020 08:46 am
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fallen
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Hi Michael

Watching this with interest.
I have not come across this unit in the UK, and it looks interesting.

On the pickups,
if you imagine putting the loco on a siding with the points (switch) set to the main line ie against the loco,
then the point blades will put a dead short across the running rails that the loco is standing on.

You really don't want the radio control unit to be trying to drive this short circuit,
as it won't last very long!

So you have to disconnect the pickups from the motor.

Frank


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 Posted: Mon Jan 27th, 2020 10:05 pm
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W C Greene
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And needless to say,
if you will be operating your locos only on your layout,
then you shouldn't have any track wiring.
Running on a club or individual's layout, then all track pickups are taken out.
If there's a short circuit on their layout, it won't be because of you!
I went through that long ago...electrical problems on other's layouts,
and some thought that my transmitter(s) were messing with their DCC stuff.
Nope, these problems were all due to misunderstanding r/c and maybe a bit of envy!!!

Woodie




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 Posted: Thu Jan 30th, 2020 07:22 pm
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Nice Guy Eddie
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" Please ignore the messy workbench " 

" Just can't seem to keep it neat "


OK


There is a wooden top underneath all the stuff on mine

I seem to remember


:f:


Eddie




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 Posted: Fri Jan 31st, 2020 04:05 pm
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Helmut
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W C Greene wrote:  
And needless to say, ..
If there's a short circuit on their layout, it won't be because of you!

Only when you remember to insulate your wheel centers properly.  :doh:




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 Posted: Sat Feb 1st, 2020 02:43 am
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Michael M
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Loco Genie all wired up. 

Bit of a rats nest at the moment. 

I'll tidy things up,
when I install everything in the tender.


Yes, it works.
 
Well, except for the headlight...
I'll have to check my connections. 


Fairly basic controls, with bell, whistle, and chuff. 

The loco starts very slowly, so I need to adjust that,
so that the loco starts somewhat quicker.


The only major change here,
is using a 7.4 Volt Li-Po battery instead of track power.




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 Posted: Sat Feb 1st, 2020 05:16 pm
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Michael M
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I lost the sound. 

Disconnected the speaker and re-binded the throttle, and the engine ran fine.

Re-connected the speaker and still no sound.





Push the 'stop' and 'light' buttons simultaneously,
and the sound came back on.
 
Must of hit them accidentally somewhere before hand,
without knowing it and had turned off the sound.

The photo shows how small the controller/throttle really is. 
Gotta be careful when pushing one of the buttons.

Headlight still does not come on. 
Used my multimeter, I'm getting like 2-4 millivolts. 
Should be getting more than that.

With the engine sitting at a stop there is a compressor sound,
and an occasional blowdown sound. 

When braking there are squeaking brake noises. 
Not the best sound quality, but still kinda neat.




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 Posted: Fri Feb 7th, 2020 03:14 am
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Michael M
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Life and work have been getting in the way and slowing down progress.





Getting the engine put back together. 

Boiler is back on the frame along with a new cab (minus roof),
and a new headlight.

The speaker in the tender is taking up more room than I anticipated,
and making things kind of tight. 

Should have everything done in the next couple of days,
if I can keep everyone out of my way.




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