I haven't got round to my window setup as yet but this is all good information. I did know about the nylon parts DS 961-175n and was intending to model and print (in nylon) some new ones. Before I go to the trouble does anyone know if they are available as NOS and from where?
SF
The nylon guides are definitely available. I got mine from Brad Nauss in the States no more than 6 weeks ago, in order to tackle this job (my guides were completely disintegrated). You will need to measure the thickness of your glass before you order them