Step 17: Crank Ring
• Carefully measure distance between piston and chassis
• Face off Ø25mm aluminium rod, centre drill, drill Ø10mm x 10mm deep
• Chamfer the outer edge
• Part off at the correct thickness
• De-burr holes.
• Center punch 4mm in from edge, drill Ø3mm.
• Cut Ø3mm steel to 12mm long and FILE a chamfer on the edges and thread lock it into the crank ring
• Face off Ø25mm aluminium rod, centre drill, drill Ø10mm x 10mm deep
• Chamfer the outer edge
• Part off at the correct thickness
• De-burr holes.
• Center punch 4mm in from edge, drill Ø3mm.
• Cut Ø3mm steel to 12mm long and FILE a chamfer on the edges and thread lock it into the crank ring
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