CSUSA Sienna pen -> pencil conversion

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turbowagon

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Joined
Sep 2, 2009
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1,067
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Tucson, AZ
For the record, it can be done the same way as the Sierra kit.

Use a Schmidt 0.7mm or 0.5mm mechanism.

1. widen the back of the transmission with a 3/32" bit

2. drill out the nib section from the inside with a 1/8" bit until the pencil tip protrudes between .160" and .165" and the lead extends correctly by twisting/untwisting the transmission.

- Joe
 
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