I develop products that require integrating 3D printed elements with casting resins of which there are three types: polyester, polyurethane and epoxy.
I have cast a nylon bolt into polyester resin. When cured I turned the bolt out and discovered workable threads in the cast that being the objective I wanted to determine. Learning about adherence with other types of material used to print is of considerable interest to me and I surmise others.
Using resins that may not bond will require building keys into a part which is easy of course. With the creative crowd here I think many will be interested in this application and I think it both interesting and important to determine what kinds of surface bonds if any the resins can, will or won’t make with respective filament material types, shrinkage, cracking adjacent parts and so on.
Let’s go with some experiments. I will be casting more polyester resin into a nylon piece this week that will be domed with polyurethane and will comment when cured. Doming explained (google: meniscus chemistry)
Comments or questions from others interested in experimenting with casts and prints?