[modeleng] LM&WR, crank pins and track circuits

OK, a right miscellany!
   
  Our first event of the season, using our second platform and reversing 
headshunt went well.  We gave in excess of 880 rides over the two days.  I was 
beginning to worry on the Saturday as we only had 250 rides and the temperature 
never got above 3 degC!  Sunday was sunny and warm and we were busy most of the 
day.  Which leads to ..
   
  My Hunslet threw a crankpin! (early in the day). I haven't got the crank off 
yet, but it looks like it might have been welded.  What is the groups views on 
the best option in replacing it - welding, silver solder or loctite?   
   
  Finally, track circuits.  In the short term (and for expediency) I am using 
IP65 microswitches to act as "replacing track circuits) to return the signals 
to danger after the passage of a train.  I have a proven design (used on 
Luscombe Valley and The Great Bullkington Railway) using a 741 operational 
amplifier.  I will need a few of these and whilst I can build them on 
veroboard, I am considering getting a PCB made.  To reduce the price I need 
quantity.  Are there any other miniature railway owners out there who may be 
interested in a few bare pcbs?
   
  There you go, three items, all on topic!
   
   
  Cheers
   
  Peter

Sent from Trowbridge, the County Town of Wiltshire

www.lmandwr.co.uk - Peter's Train Set
www.stumpyweb.cjb.net - Peter's trains (and other toys)
www.whissgig.co.uk - The Spaniel Page
                
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