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Member postings for Robert Starling

Here is a list of all the postings Robert Starling has made in our forums. Click on a thread name to jump to the thread.

Thread: Pansy Boiler Topfeed
04/10/2012 18:54:10

Would like information from builders of Pansy how they fitted the Boiler Topfeed. Did they fit as per drawing, which possibly may not be advisable these days as it involves screwing directly into the boiler shell, or have they developed a different method ?

Thread: Piston Rings etc
08/06/2011 18:56:29
Currently machining gunmetal cylinder block for 5" gauge Pansy but I am a bit out of touch with what is used for piston ring material these days. Originally LBSC used graphited yarn which is still available but I suspect some use silicone 'O' rings which are available from Chronos or Blackgates. How well do these wear ? ( I have some minor blemishes in one bore which might be the result of slag in the casting and am concerned that the 'O' ring might tear on this). I have also come across an article in which piston rings were made from 35% graphite filled PTFE but have no idea where to obtain this in the small quantity needed. Other modellers experiences and advice welcomed.
Thread: 5" Gauge Axleboxes
06/02/2011 15:44:16
Have machined grooves in axleboxes where they slide against hornblocks. In some articles it is advised to radius the faces of the flange to allow easier rise and fall of the axlebox. How essential is this ? and what is the best way of achieving the radius without damaging the machined groove ?.
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