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6

D104098#1

6

D104098#1

4. The guidance system

a) Saw the dowel (Part 9) to 310mm and the dowel ( part 10 ) to 210mm

b ) Insert both of the dowels crossed over underneath  through the 6mm holes in the frame

     Glue a 30mm wooden  wheel A ( Part 11 ) on each end of the outer frame  Diagram 12

c ) Cut from the dowel ( Part 8)  4 pieces 25mm long. Arrange the plywood discs  B  around the inner frame and inset 

the 25mm dowels. Diagram 12

Note:

Leave a little play between the wood discs and the frames

d ) Arrange the wooden discs  C  between the frame using the  25mm dowels ( Diagram 12) 

Instrucitons

Abb. 12

e) Wind a 200mm long thread about 3/4 turns on each dowel axis on the underside of the game ( Diagram 13 /14)  Fix 

the ends of the thread using the plywood pieces from part 4 

  Fix each plywood piece  with a screw ( part 12 )

  Note:

  Carefully adjust the tension of the thread with the fixing screw

A

A

B

C

Abb. 14

Abb. 13

B

C

A

A

B

B

Playing field

Inner frame 

Outer frame 

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