No not class 20's, (or that, you smutty individuals ), but one of these:

Which has proved invaluable this weekend, as I've started adding detail to the cab of 415. It's great for cutting multiple, identical, pieces of styrene, with the supplied adjustable fences - angles are included too. It's very easy to set to the size you want too:

Various people have said to me that the problem with going up in scale is that you end up adding smaller and smaller details, because you can. They've been proved right! After trawling the net for pics of 37 cabs (a big shout to Brian Daniels here - his pics have proved invaluable for this B) B) ) I've found some pictures of the cab of 694. Although 415's detail may be different again, I've used it as a base for the detailing. I've made a start on the nose end bulkhead:

I've started with these, as this is where the bulk of differences seem to be, the kit rear bulkheads look spot on - they'll just need painting and weathering. The changes are minor, but worthwhile, mostly centering on the panel in front of the secondmans seat. Other changes I've made are an additional gauge and elongating the hole for the AWS indicator down and to the right - the hole in the bulkhead means that it sits too high and to the left. This wouldn't normally be a problem, but it would be really noticeable once I've put the cab-shore radio in place.

I've removed all the detail from the secondmans panel before adding some spare door open buttons from my 455 etches and building the other parts from assorted microstrip and rod.

Here are some of the other details I've been working on over the weekend - can you tell what it is yet?

They're a bit rough round the edges - I need to work on my miniature crafting skills a bit (Willard Wigan has nothing to fear! ) but they do the job - as long as someone can tell what they are, I'll be happy!

I've also been adding cab door detail to the inside - it just didn't look right with the plain resin moulding behind the cab door area. There's still a way to go on this yet.

I don't know why I can't just build kits as they are, but the more I look, the more I notice and the more I want to add! It's some sort of affliction, I think - a desire to make life more difficult for myself Off to carry on with chopping now...

PS - If you don't know who Willard Wigan is, take a look here and prepare to be amazed:

http://www.archipelago-art.co.uk/id36.html