I purchased a Proxxon Cut off saw a few weeks ago to enable accurate cutting of the brass and nickel silver sections required for the roof girders and eventually the roof trusses [ the likely follow on project after the girders ].

I did send the first one back after discovering a problem with the on/off switch - it tripped the RCD each time I switched it off! The replacement appears to be alright and I have used it to produce all the diagonals for the lattice girder with pleasing results.

The close up shows the addition of the 3 wider 'T' sections nearest to the end of the girder and the narrower ones towards the centre.

Each diagonal is positoned with a dab of Carrs 179 solder and fixed in place using an RSU.

After completing both sides here is the finished girder - rivet overlay still to be fitted.

These photos clearly show the three layers of the lattice making up the girder.

The finished product has proved the method of constuction for me and I shall now proceed to make up the remaining sections.