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TEMPLOT 3D PLUG TRACK - To get up to speed with this experimental project click here.   To watch an introductory video click here.   See the User Guide at Bexhill West.

  • The Plug Track functions are experimental and still being developed. Some of the earlier pages of this topic are now out-of-date.

    For an updated overview of this project see this topic.   For some practical modelling aspects of using Plug Track see Building 3D Track.

    The assumption is that you have your own machines on which to experiment, or helpful friends with machines. Please do not send Templot files to commercial laser cutting or 3D printing firms while this project is still experimental, because the results are unpredictable and possibly wasteful.

    Some pages of this and other topics include contributions from members who are creating and posting their own CAD designs for 3D printing and laser-cutting. Do not confuse them with Templot's own exported CAD files. All files derived from Templot are © Martin Wynne.
  • The Plug Track functions are experimental and still being developed.

    For an updated overview of this project see this topic.   For some practical modelling aspects of using Plug Track see Building 3D Track.

    The assumption is that you have your own machines on which to experiment, or helpful friends with machines. Please do not send Templot files to commercial laser cutting or 3D printing firms while this project is still experimental, because the results are unpredictable and possibly wasteful.

    Some pages of this and other topics include contributions from members who are creating and posting their own CAD designs for 3D printing and laser-cutting. Do not confuse them with Templot's own exported CAD files. All files derived from Templot are © Martin Wynne.

00-SF Gauges

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Alan McMillan

Member
Location
Edinburgh
I'm about to purchase gauges from C&L to enable me to build 00-SF track. My question relates to the back to back gauges they have available; one at 14.5mm and the other at 14.8mm. I haven't seen any reference to a back to back as wide as 14.8mm before and wondered if it might be the way forward in further reducing the slop found when one runs an RTR loco on 16.5mm gauge track. If the gauge is reduced to 00-SF 16.2mm and the back to back is widened to 14.8mm will this improve running more than if the back to back was set to 14.5mm?

Alan
 
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@Alan McMillan

Hi Alan,

RTR 00 wheels are made to the NMRA RP25/110 standard. The correct back-to-back for such wheels on 00-SF, 00-BF and DOGA-Intermediate is 14.4mm.

Maximum back-to-backs for 00-SF, 00-BF and DOGA-Intermediate :

RTR wheels 14.4mm.

Romford/Markits wheels: 14.5mm.

Kit wheels (Alan Gibson, Ultrascale, EMGS, etc): 14.6mm.

Minimum for all of them 14.3mm for 00-SF.


The 14.8mm back-to-back gauges are for the DOGA-Fine standard when used with kit wheels. 14.9mm maximum would be better.

RTR wheels can be run on DOGA-Fine if set to 14.7mm back-to-back. This involves modifying RTR models, after which they will no longer run on other 00 gauges, and have little secondhand value. DOGA-Fine is a deprecated standard in this neck of the woods. :)

cheers,

Martin.
 
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Thanks Martin. That being the case, I think I'll build and use the wheel testing fixture that you have shown elsewhere as a way of setting a back to back that is wheel/flange dependent, rather than a fixed dimension.

Best regards

Alan
 
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