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CDR Class 5 nears completion

Killybegs

Entry posted by Killybegs

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After much blood, sweat and tears, the Class 5 is finally running reasonably smoothly under power (that's tempting fate!). Electrical pick up from the track is not perfect, I think partly due to the rigid chassis and maybe to the mazak wheels. I don't know what mazak is like as a conductor and the treads seem to get dirty pretty quickly - they were filthy after 45 minutes on the rolling road. I'm waiting for couplings before doing much more. It all comes apart for painting.

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Horsetan

I didn't like the mazak driving wheels on my sample, as I thought the profile was a bit coarse, so I pulled them off the axles and replaced them with 16mm dia tender wheels (I think they were Alan Gibson's) to P4 profile. Being plastic-centred, that tends to reduce some of the shorting problems.....!

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Killybegs

Sounds like a good idea, certainly something to bear in mind for the future! I know that Backwoods changed to Romford wheels some time ago, maybe that was one of the reasons.

 

Many thanks,

 

John

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Horsetan

That change was as far back as 2000. There was a note in my kit to that effect. I thought it was a retrograde step, but there you go.

 

I used a standard TT back-to-back gauge to set the replacement drivers. That might actually work out slightly wrong, but I haven't actually got any 12mm gauge pointwork worth the name to test it on.

 

 

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Killybegs

I can believe that, I think that the kit I was building had been around for some time. I couldn't find a suitable gauge either so I used my digital calipers set to 10.5mm (that info came from Backwoods) which conveniently have a locking screw which I had previously found no reason to use!

 

I tried out the rolling chassis (without motor) on Andy Cundick's old Letterkenny layout and it didn't seem to have any problems

 

John

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45609

Hi John,

 

Looks fantastic and well done getting to the end of this rather difficult road. Am I right in thinking that early on these locos were painted black? Ming you they look much better in a nice coat of red paint.

 

Cheers....Morgan

 

P.S. The wheels in the one I made were Romfords but were changed for Sharmans

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Killybegs

Hi John,

 

Looks fantastic and well done getting to the end of this rather difficult road. Am I right in thinking that early on these locos were painted black? Ming you they look much better in a nice coat of red paint.

 

Cheers....Morgan

 

P.S. The wheels in the one I made were Romfords but were changed for Sharmans

 

Very early on, This one, No. 5 'Drumboe', will be well into the red period.

 

John

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