it dawned on me that some more actual pictures might help..



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so here are some ...

hope this gives you some idea..

I've gone back to the customer and asked for a bit more info on what the truck / moving element looks like, as I'm able to find lots of things that measured at 35mm but 36mm seems a strange one..

anyway thanks for anyone who looks at this..

it might be that i get the grinder fired up and some steel cooking in the oven ..

Pb.