From this evening's Zoom call, the ultra simple rail bender I based my version on was one I found on NGRM online:
(https://live.staticflickr.com/65535/52036189686_5dd67baef3_b.jpg)
https://ngrm-online.com/index.php?/forums/topic/29645-returning-to-the-narrow-fold/&do=findComment&comment=763946 (https://ngrm-online.com/index.php?/forums/topic/29645-returning-to-the-narrow-fold/&do=findComment&comment=763946)
I just refined it a bit
Most impressed with your version last night Graeme and the results on your box layout.
Quote from: John Galbraith on January 12, 2023, 08:43
Most impressed with your version last night Graeme and the results on your box layout.
Thanks John. I should take a note of what I did so I don't forget!