... make a simple wooden clamp to hold the rails for filing. (as per the very original Protofour method- available via the Scalefour Soc website) Best regards, Howard. 1129_050750_130000000.jpg 1129_100905_120000000.jpg posted: 5 Dec 2010 13:28 from: roythebus Thanks, that's more or less what I thought. I didn't think about using scrap brass fret, I've lost track of how much of that I've chucked out recently! posted: 5 Dec 2010 14:10 from: JFS... couple more pics of the same job. 1129_050831_500000000.jpg By the way, this pic was taken BEFORE the crossing was positioned and fixed down- you will of course be more careful to get the base strips more acurately positioned!! Next time, I will leave the strips over length, blu-tac them to the template then cut then off flush to the railside after the job is finished. And the finished slip... 1129_050833_500000000.jpg This formation- in P4- is all at 1:6 and curved to produce a 36" minimum radius (with 0.2mm gauge ...