Below is 2 solenoids put together. They are modified so that a stroke length of double a single solenoid is achievable. The shaft is also longer. The code is tuned so that the first solenoid activates, there is downtime, then the second is activated. Amazing.
This is the current progress on the housing for my wrist launcher project. The small box is where the solenoid fits in snug and the cutout in the barrel is where darts can be loaded in the magazine.
Here’s a few pictures of the prototype projectiles. I want to find a good balance between mass, speed, and accuracy. So far the nerf dart is the best, but I have yet to test the lighter 3d printed darts (smaller wall thickness).