DJH 4mm scale Highland Barney

Over on RMweb Mark Tatlow mentioned the clack valves on the side of the boiler on the Barney and made me realise that the misshapen blob was supposed to represent themThis is the blob that I refer to:[img]https://farm8.staticflickr.com/7832/39851133783_eeaeab0d9b.jpg[/img]

DJH 4mm Highland Barney Loco Almost Completed

Having had it pointed out I had to do something about it. Mark had pointed me at some castings by Alan Gibson but I figured that they couldn’t be too difficult to make a pair and although a little fiddly they were fairly easy to do.

DJH 4mm Highland Barney – Scratch Built Clack Valves

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DJH 4mm Highland Barney – Scratch Built Clack Valves
DJH 4mm Highland Barney – Scratch Built Clack Valves
DJH 4mm Highland Barney – Scratch Built Clack Valves
DJH 4mm Highland Barney – Scratch Built Clack Valves

They comprise, a couple of brass track rivets, two etched washers and 0.7+0.8mm brass rod.
First I drilled through the rivets to take the .8mm rod and then with the thick end of the rivet held in a pin vice I used the Proxxon pillar drill to spot drill and then drill through one side of the narrower section. I then soldered a length of .8mm rod through the centre with a stub sticking out of the narrow end. Then I soldered a length of 0.7mm through the hole in the side threaded on the washer and soldered that.
I scraped the misshapen lumps away with a scalpel and then drilled the boiler side finally bending the 0.8mm rod to shape and using a tiny piece of 100 degree I wafted the microflame over the clack until the solder melted and it was in place.