@JohnnieWalker posted:...As for the wood movement you mentioned I’m not sure what you mean. The wood roadbed sections I posted photos of are what the , hopefully, rubber sections will look like . I need to build a box next to fit the would prototypes . 4 sides and a bottom, with an inch surrounding the roadbed on all sides . Then I can pour the silicone over the wood roadbed. That will eventually become my mold for making the rubber roadbed. If this works . ...
I misunderstood your process - I thought that you were planning to make all of your pieces from wood, but now I understand that you are making molds. Since you are using solid wood (rather than plywood), the pieces will expand and contract across the grain with changes in humidity. They may also cup or warp if one side is left unpainted. However, if they are only being used to build molds, you might be done with them before wood movement is an issue.
Here's an article regarding considerations for wood movement: https://www.thisiscarpentry.co...ntent-wood-movement/
