Author Topic: Non-DCC Ready ME Code 55 Turnouts - Suggested Improvements for DCC?  (Read 252 times)

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Brian M

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I've tried searching for the recommendations on improving the electrical aspects of the older (non-DCC ready) Micro Engineering turnouts, but I haven't had any luck finding much in the way of a suggested set of steps.  I have a few of these older turnouts that I wouldn't mind using on my little switching layout, so it would be nice to make whatever improvements to them that I can.  Namely, I think the biggest shortcoming seems to be in the lack of isolation at the throwbar.  The only thing I can think to do is remove it and replace with a piece of PC board tie.  Is this what others have done?

I have wired the frog into a slide switch, which basically creates one long electrically switched piece of rail, from the points through the frog to the exit rails.  Without isolating the point rails, I'm worried that somehow an engine could short out when passing through the points, although I realize the chance of this happening is probably low.

Thanks,
Brian.

Chinapig

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Re: Non-DCC Ready ME Code 55 Turnouts - Suggested Improvements for DCC?
« Reply #1 on: April 15, 2019, 04:16:51 AM »
+1



The photo shows the adjustments I made to my older ME turnouts to make them DCC friendly.

I'm referring to the upper of the two turnouts now - the lower one is one of the more recent ME ones.

I removed the tie bar and replaced it with a copper clad PCB sleeper.

I then used a fine jewellers saw to make two cuts in the rails either side of the frog.  The frog then had a wire soldered to the underneath of it which is used to change its polarity.  Cutting with a jewellers saw weakened the structure a bit so I reinforced both areas with Milliput epoxy filler - the white areas.

They give me no problems whatsoever now.

Cheers, Ted
Member of Gosport Model Railroad Club: www.gosportrailroadgroup.org.uk
modelling oNeTrack modules.