Dave Holt's Blog

Impressive looking work.

 

With regard to pop-up adverts, I don’t get those on my Ipad although there are ads onscreen.  Also don’t get pop-up ads on PC, although I do have an adblocker on that.  Hope you can find a way that the adverts are less annoying for you and that you can return to greater participation here.

Excellent work as usual David. I have the transfers ready and waiting for both locos!

 

David

Excellent post Dave. I find the dismembered Ivatt 2 image particularly useful. It demonstrates perfectly how you've tackled the separate sub assemblies and what's permanently fixed to the main frames. Also items such as the keeper plate and pickups. One question I do have is how you've split coupling rods. Do the leading and trailing rods not need to be permanently assembled? I assume the crankpins hold the rods in place and as you're not using a forked joint on this occasion, the pin is sufficiently long enough to avoid separation once assembled? 

 

I've also been avidly following your Black 5 build on the S4 Forum, as you know I have a few Brassmasters loco's in the queue so the detailed build has been most useful. I look forward to a running session when its safe for us all to do so!

 

Many Thanks

 

Paul

Thanks for the comments.

The Ivatt chassis is quite old, despite it still not being finished, and the coupling rods are simply as Comet etched them. Many of my earlier models have the rods split at the centre crank pin and work satisfactorily even though it's an inferior design compared with working knuckle joints. The two half rods sit on a short crank pin bush and are retained by the connecting rod and return crank.

Dave.