Steam Engine Build/Base Plate

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Steam Engine Build Instructions

Description

A heavy plate (1.0" thick) is used to provide a solid base for the steam engine and the crankshaft assemblies. This plate should be further attached to a massive sub-base, such as a concrete slab.

CAD

Drawings

Instructions

Using 1.0" thick steel plate:

• Cut a rectangle 17" by 9.5" (exact dimensions are unimportant)
• Drill four holes to bolt the engine assembly to the plate:
  • Each hole is drilled and tapped to receive a half inch bolt
  • Space centers 6.5" by 8.5" apart.
• Drill four holes to bold the crankcase assembly to the plate:
  • Each hole is drilled and tapped to receive a half inch bolt
  • Space centers 2.0" by 8.0" apart.
  • Offset the crankcase holes from the engine assembly by 4.6"

Alignment of the crankshaft assembly with the engine assembly has two critical points:

1. Center line of engine and connector rod must be centered on the crank pin.
2. Amount of steam let into the engine is determined by the crankshaft offset (4.6"), though this can be fixed by adjusting the length of the bump pins.