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This is a homemade mechanical pinball machine that I've been planning to build for a while. I'm pretty pleased with the outcome and in the future i'm hoping to hook some lights and sounds and possibly a scoring system to it.

here are the materials
- a 50x100cm plywood board
- 2x pieces of 1m long skirting board
- 2x 52 cm long pieces of skirting board
- 2x pieces of standard 1.2mx19mmx42mm pieces of pine
- 50x(5-6)cm long nails
- strong glue (I used liquid nails)
- 4x 19mm saddle clamps
- 2m of wire
- paint
- 50cm of 15mm PVC pipe
- 70cm long 1.7cm thick piece of wood pole
- 2x old tin cans
- a bolt at least 12cm long with a spring and a bit that fit snuggly around it
- 4 pieces of old mecano (not really needed)

Step 1: Making the Board

First off spray paint the plywood board quickly for aesthetics. Attach the 4 pieces of skirting board around the edges of the plywood board using on the corresponding sides using nails and glue. the shorter sides should cover the ends of the longer pieces.

Step 2: The Plunger

Cut a piece of wood about 3.5 cm long and drill a hole in the middle of it, this is where the plunger will go. You can also add a groove below it to keep the marble in position. Then place the piece of wood on the right edge of the board, about 5cm from the corner, using glue and nails. Then drill a hole in the bottom of the board in line with the hole in the piece of wood. Next, feed the bolt through the hole in the bottom of the board, through the spring and bolt and through the second hole. Then cut a piece of wood 47cm long and place it so it sits comfortably diagonally across the board. Lastly cut a piece of wood 76cm long and place it about 3cm from the right edge of the board and leaving a gap that allows the marble to roll into the plunger. refer to the pictures for further help

Step 3: The Flippers

Firstly cut 2 pieces of 13cm long pieces of wood and attach them on either side of the center with a slight angle leaving a gap for the slip lane. next drill two holes just inside these pieces for the flippers. Next cut two 6.5cm long pieces of wooden pole and drill 2 holes at the top and another at the bottom facing 90 degrees from the others. then cut two pieces of 7cm wood and attach them to the top of the wood pole pieces and put them through the 2 holes. On the other side cut 4 1cm cubes and attach them either side of the poles. then cut two 18cm pieces of PVC and attach them in line with the bottom piece of wood using the saddle clamps. Then put a screw in the top of each of the pieces and attach a rubber band between them to let the flippers return. next add 4 nails to limit the movement of the flippers. finally cut two pieces of wood pole to fit in the pieces of PVC. refer to the pictures for further detail

Step 4: The Stand

Cut a 52cm long piece of wood and attach it along the base of the board and then cut 2 15cm long pieces of wood and attach them to either corner of the top of the board. Refer to the pictures.

Step 5: The Cool Parts

For the slip lane I cut a 30cm piece of wood and attached it to the side, leaving room for a marble. at the top right hand corner of the board put two nails right at the edge about 10cm from the corner on each side, you may need a nail punch. Then put a thick rubber band between them. Do the same thing for the 2 bumpers at the bottom of the board, but using 3 nails. For the rest of the board you can do what you want so I'll just briefly show you what i did. For the ramps I got an old can and cut the top and bottom of and put sticky tape on the edges to make it less sharp. I then cut out a wooden platform using a jigsaw attached it to the ramp and stuck it on the board.

Step 6: The Cool Parts 2

I made a head out of wood by drawing a design on wood, cutting it out with a jigsaw and colouring it. I then attached it to the board and ran 2 wires through its mouth to act as a marble track. For the multi ball I used a piece of wire to hold the balls and another to knock them out if it was hit. For another obstacle I added a series of nails.

Step 7: Decoration

To finish it of I added some paint and signs to give it a neat look. To make the arrows I put pieces of sticky tape down spray painted the board and took them off.
<p>Pretty sharp. I definitely see a lot of room for expansion with this project if you want to take it further.</p>
<p>Great way DIY pinball design.</p>

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