I recently came across G3D Printables and was struck by what a clever use of 3D printing technology it is. They make training items like dummy rounds and training knives – items that have traditionally been expensive when you consider how simple they are. G3D Printables is able to offer them at extremely affordable prices thanks to the efficiencies offered by 3D printing.
In addition to the cost benefits, there are also benefits in the accuracy they can achieve in reproducing something like a knife. They are also able to print using different materials to achieve different results like both hard and flexible versions of knife trainers.
If all of that isn’t interesting enough, they can also take on custom prints so they may be able to help you create a trainer or dummy round for a one-off custom knife or oddball cartridge. This could also offer opportunities for custom knife makers to offer affordable trainers for their designs without having to produce them in-house. They recently completed a collaboration with Wingard Wearables to create a trainer for the Quill.
G3D Printables website: https://g3dprintables.onlineweb.shop/