This is a replacement lid for a Hammond 1590G box, the lid is designed for a SX mini J chip and a 16mm mitek switch. This chip is secured down with screws. I have designed this one to work with the SS tact switch buttons varitube carries so you can use the onboard tact switches for up/down operation.
Parts Needed
You will also need a G box and a 510 of your choice, by searching for this I assume you already know where to get those.
Remember 3D printing is not machining and some minor adjustments might be needed to make the parts fit as desired.