Step 2Make holes on the tubes
For Wheels
• Take a toilet roll tube and mark centre, length wise
• Mark 2 points 10 mm apart on either side of the centre line and 15 mm from top and bottom of the tube
• Using the skewer make holes through the marked points
• Repeat above steps on other 2 tubes
For Chimney
• Pick one tube that you want call the Engine
• On the front side of the tube [side opposite to holes made for wheels] mark a point 25mm from one end on this centre
• Mark a circle of 1 Penny diameter [approx. 20mm]
• Using the skewer cut the circle out from the tube [don’t worry even if the cut is not smooth]
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