I have been busy trying to solve the running problems on my 517. thanks to help on one of the forums I managed to get the thing rolling freely - so all seemed well. Until.....I realised I had manged to strip part of the idler gear in the gearbox which made it lurch as teeth engaged then didn't. Ah well - new gear on its way thanks to Chris at High-level kits. 

To compensate for the slow progress I made a few more card buildings. The more I do of these the more I enjoy them but at the same time see the problem with the last one.....ah well they are cheap and quick to build. Anyway here is another photo  - sorry for the poor angle and lighting, I haven't really got the hang of taking photos yet!