RMC Type'b' Loyal Cycle Project | |
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Ok, so I decided to see how the casting material machines BEFORE I start on the main casting. The muffler castings seem like a nice place to start, so that what I'm going to do. As a note, did I mention how nice the castings are to begin with? As always, click on the photo for a larger version. | |
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The castings as they showed up in the box |
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The other side of the castings as they showed up in the box |
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Casting ears bug me while I'm doing the machining. So they had to come off. A few minutes with a hack saw and my 1/4" air grinder with a flapper wheel and heres what they look like. |
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Front side chucked up in the 3 jaw with a spacer to hold it level |
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Ok, so the nub on the front is faced, sides cleaned, and center drilled |
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Drilled through and the reversed on the nub we cleaned up |
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Turned the back mounting surface flat in relation to the front |
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Cut the inside relief to size, and remembered the settings to take close pics |
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Put it on the rotary table to drill the holes |
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Action shot of the last hole going through |
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Back casting for muffler chucked with spacer |
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Turned a nice clean mounting boss centerd on the outter rim |
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Flipped and chucked on the turned boss, cleaned up the mounting face |
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Flipped again, sawed off excess and cleaned it up, then center drilled |
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The exhaust pipe hole drilled and reamed, ready for the pipe |
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Muffler to this point with temp screws and a brass pipe (I had the right size brass already) |