... 23:24 by Tom Allen posted: 4 Jul 2020 19:32 from: Igor Kurgan Well, as promised, some picture's of my proto type frog, made from hammer proof, uv resistant, extruded pvc.It is easy to make, lead ins are taking care of, the throat is 2 mm, flange bearing(2 mm for aristo) and including safety/check rails plus accurate to templot's giving drawings as you can see. 3669_041413_210000000.jpg There is room for improvement regarding sawing, the guidance could be better. 3669_041413_230000002.jpg 3669_041413_240000003.jpg 3669_041413_220000001.jpg posted: 4 Jul 2020 19:58 from: Igor Kurgan Tom Allen wrote: i'm guessing a bit here, the rectangle of track in the sort of middle is the shed. So i've put a traverser in the shed for you. It's just a sliding table with track on it that can be positioned by hand or motorised and can be as long or short as you like, with as many roads as you wish (as long as it will allow the movement of the traverser) .I have an ...