As part of a project to create an Exhibition Layout, I wanted my own Sleeper Spacing tool to space sleepers out like the Peco Bullhead Track.
So I thought I would create a tool to assist with this, when thinking about this I thought it would be good if you could print several and they semi-link together so you can easily do longer lengths of track.
The Sleeper Spacing is based on there are 25 sleepers per 60ft of track, this makes the sleepers 9.6mm apart from center to center. (((((12x60)x25.4)/25))/76.2) = 9.6mm
Please see the photos for more details.
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.