
21-And the second outer rail in place. Here I made an other mistake: I have taken the jig-rail out and I should not have done that. That way you have nothing to align the inner straight rails to. So I put back in the jig rail afterward

22-The jig-rail back in place and the first bit of the outer point blade in place. In many workways you see rails like this being done with the left and righthand side in one piece of rail. I think it easier to do it in two pieces. Time will tell ......

23-Both bottom "straight" pointblades in place. In this picture the gap between the two pointblades might look massive, but just a tiny bit of solder will fill this gap and make it invisible.

24-I kept the jig-rail in place and started to work my way inward.

25-Bottom half getting there

26-Third stage allmost done

27- Third stage done. I'm not to proud of the frog and the wings next to them. They work, but the alignment could be closer to tolerances. The top righthand "straight" rail shows on of the principal alignment problems with building the slip this way. There is a slight (outward) curve in the rail. Given other issues we will see later on in the process this is a misalignment at a crucial point. This needs another way of doing!

28-The alignment of the bottom left toad (????) is also not as I want it. This is probably the result of making the template not accurate enough. I will redo that also.

29-Here you see the curve in the top straight rail in beter detail. By now I was sure this first build was not going to make a working double slip. However I continued because I wanted to know if I was able to reach all the soldering spots until all the rails where in place. This is one of the issues "Aussie" was having problems with with his 1:6 double slips build in the FastTrack jigs. To be honest: I have not yet build a 1:6 double slip

30-The finished product. At the point blades you can see the unsolvable issue this model is having: the pointblades just do not close nicely. Also the measurements just behind the pointblades in the direction of the inner crossing just don't add up/ However ........ it was possible to solder all the rails in place. So in principal this way of working should be a right way to make a useable 1:9 double slip. Now I need to figure out an easier way to get the alignments right and to solve the problem "behind the pointblades"
_________________
Paul Bender
Everybody can shovel, firing is an art

Firing this train was more fun then hard labor

© R. de Water