Hope this helps
Step 1: Inspiration
The only problem with this video is that it makes little or no attempt to educate the viewer as to how to construct the target, this is where my guide comes in.
Im sorry im not incredibly techno confident so if the video i tried to upload doesnt work i have provided a link to YouTube as well, just in case.
Step 2: Moving Target Mk1.
It only moves up and down. I did it in a word document so its attached below
Step 3: Moving Target Mk2.
Again its on a word document.
Step 4: Future Targets
good luck and let inspiration guide you!