now be warned, i do not have step by step instructions since anyone who makes this will change it for there liking. the design is made so that you could make it as big or as small as you want it. because of this i only have clear pictures of everything already connected to the pinball machine(everything expect for part of the flippers and the track for the ball launcher are out in the open anyway, and easily seen). i have a description of each piece in the instructable and how it works so you can make it. everything is customizable so yours will most likely be different. but i still have a piece list to give you some idea of what yours will use.
_Kira_ made this using minimal white connecters, and made instructions here: www.instructables.com/id/Knex-Pinball-Machine-1/
Step 1: Step one: the base
this part also decides the length and width of the pinball machine. mine has a width of 7 blue rods and length of 6 blue rods. this ended up leaving a surprisingly small space for the ball track but was big enough to work. when i made it i forgot to take into account the fact that the guard rails and flippers would take up space. but it still works.
one more thing you need to do is make the back one blue rod longer then then the front to give the pinball machine a angle so the ball rolls to the bottom.
some blue rods have been replaced with yellow connectors with green rods on opposite sides to equal the length of a blue rod. these yellow connectors will connect parts(mostly the flippers) to the machine so they need to be there.
if you look you will see that the blue rods extend in two squares at opposite ends oft the machine. the bottom one is were the ball goes when the game is over. that is a needed part (unless you hate losing). the other one is for a extra ball release i made but that is in another step.
1. shows the blue rod connections(ignore the top white connectors.)
2. picture of the entire thing
3. picture of the end that gives the machine a angle.
4. bottom part that holds the ball when the game ends
5. different view showing the blue rod hook ups.