Did a 3d printed design for battery holder for Kyosho Optima/Javelin. This is designed for low profile shorty pack that followed the dimension of 18.5x47x96mm. The original intent to have a better battery secure rather than velcro tapes and prevent the battery from moving sideway.
The STL files are available off cult3d at https://cults3d.com/:2946635
Love any feedback and comments.