Timber Posted June 16 Share Posted June 16 Hello - I am building some pre grouping 30ft coach stock. Some are six wheelers. My layout has reasonably tight radius. Any ideas on the best way to articulate the W Irons so that I can navigate tight curves? I model in S so everything gets scratch built but I am unsure on the best way forward. My preference would be to have the trailing and leading axle on rocking W irons with an inner axle that slides - but should I also have the trailing axles on some sort of radial axle system so that they sit with the curvature of the rail? Whatever I do I need to compensate the motion so that I dont have derailment with the proto sized flanges that we use in S. Any help appreciated Thank you. Link to post Share on other sites More sharing options...
RMweb Gold Bucoops Posted June 16 RMweb Gold Share Posted June 16 Have you looked at the Cleminson method? 4mm but may help weith info? https://www.brassmasters.co.uk/cleminson_underframe.htm 1 Link to post Share on other sites More sharing options...
RMweb Gold chris p bacon Posted June 16 RMweb Gold Share Posted June 16 On my own kits (GN) I use some sprung bearings on the ends and have the middle axle floating and retained by wire from one end. Attached are some basic instructions, these allow for only minimal movement of the middle axle, for tighter radius you fix the wire to the W iron at one end and solder to the axle carrier without extending it to the second (outer) W iron. W Iron & 6 Wheel instructions.pdf 1 1 Link to post Share on other sites More sharing options...
Timber Posted June 17 Author Share Posted June 17 Chris p bacon - thank you! does the middle axle float or is it on a slider on the chassis... 1 Link to post Share on other sites More sharing options...
RMweb Premium Daddyman Posted June 17 RMweb Premium Share Posted June 17 This is the way I've always done it and it works a treat - idea of @Portchullin Tatty: https://highlandmiscellany.com/tag/6-wheeled-coach/ A lot of people in the Scalefour Society seem to be sold on it too. Link to post Share on other sites More sharing options...
RMweb Gold chris p bacon Posted June 17 RMweb Gold Share Posted June 17 8 hours ago, Timber said: Chris p bacon - thank you! does the middle axle float or is it on a slider on the chassis... I just let it float, I do load the carrier with some lead for weight. 1 Link to post Share on other sites More sharing options...
jwealleans Posted June 19 Share Posted June 19 (edited) I've always just had the middle axle floating in a tube on the end of a bit of wire or a Comet cradle (for 14mm wheels) and it never causes a problem. All the 6 wheelers in the train at 8:20 are built this way. https://youtu.be/GQ2noCnw33s?si=Irut4DnAvLmy_if- Edited June 19 by jwealleans 2 1 1 Link to post Share on other sites More sharing options...
Timber Posted June 21 Author Share Posted June 21 Thank you for the posts - some great ideas here - let me have a ponder...... Link to post Share on other sites More sharing options...
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