When I was laying platform coping Stones on my clubs curved platform I needed a tool to get the distance from the track to the coping stone correctly.
This is a modification to my curved platform marking tool but this tool has a flat edge so I could push each platform edging stone up against it to get the right distance and smooth edge around the curved platform.
This item can be printed on a Resin or Filament Printer, the example in the pictures was printed on a AnyCubic M3 Resin Printer. You will need some wheels from rolling stock once printed, I used old plastic wheels that I had replaced with metal wheels.
I use AnyCubic Water Washable Resin for most of my items but use AnyCubic ABS Like Resin for anything that needs to be stronger and tougher.
use this link to join CGTrader and download my designs.
https://www.cgtrader.com/designers/PJD1974?referral_id=3218445