The old version is built with normal wooden plank 1x4 inches and sawed out with a handheld jigsaw <- according to google translate (I thought that was the protagonist in the saw franchise :P)
Then holes were drilled and a pen shooting mechanism was added, it's pretty simple though hard to describe.
The newer version is made out of plywood because I felt it was easier, also Jörg's videos on YouTube made me think plywood was a great material and clearly underrated by me.
The first step was to take the handheld jigsaw and cut out the shape of the rifle, just about one meter long.
Then two pieces of plywood to hold the barrel, a 20 centimeters long copper pipe in the smallest dimension, 8mm I think, it's however just so big that a pen can pass through without problems.
Then these were put together with glue. Then the rifle was sawed off just above the handle to give room for the trigger mechanism, therefore two pieces of plywood was attached to the sides to give the rifle a more natural shape and lift up the plywood board from the barrel to the trigger.
Then I was taking a coffee and stopped my work for that day
stay tuned more is coming, trigger mechanism and rubber bands are coming soon.
Any tips on good rubber bands from normal hardware stores?