Main Cylinders

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For most of the photos on this page, you can click the image for a larger picture.

	And this job is complete
	The core box fitted with its end caps
	January 2026 The drawing shows that the valve cylinder has a number of recesses and these have a internal radius at the ends. Tony now needs to create this in the core box.
	For a trial run, Tony has mocked up a section. He will be using the light gauge red leather strip to form the curve with a special glue. He has painted the area green to provide a contrasting background.
	Tony now has to work through all of the sections in the core box adding pattern makers "draw" to the vertical faces. A slight taper will help when removing the sand mould from the core box.
	Tony has painted red the areas where he needs to apply the leather strips to make the rounded corners.
	This is how Tony is gluing the leather strip in place. This will then allow the radiused ends of the galleries to be formed in the sand core.
	A couple of completed sections with the ends to be trimmed off once the glue has set.
	Tony is mow working along all of the valve cylinder core box sections screwing them together and painting them
	The black section is the "print" extension of the core that will fit into the print recess in the sand mould made by the main pattern. The blue section is a removeable piece. The core box will make one half of the code. When the other half is made, the blue section will be removed and replaced by a similar section making the other hand.

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240 records found. Page 24 of 24 displayed.