Knurl GT Rollerball Conversion - International Association of Penturners
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Old 12-03-2017, 08:02 PM   #1 (permalink)
MRDucks2's Avatar
Join Date: Jul 2017
Location: Franklin, IN
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Default Knurl GT Rollerball Conversion

The request was for a Knurl GT that used a Pentel Rollerball refill the customer liked to use in her nursing job. The conversion ended up being pretty simple.

First: replace the stock 3/8 tube with one cut to a length of 3.5 inches.

Second: turn and assemble pen as normal replacing the stock return spring with a spring for the Le Roi Elegant Click Pen and the Parker refill with a Pentel EnerGel refill.

Note: not sure the Pentel EnerGel is a true Rollerball, but the refill dimensions are the same. Key difference is the ink in these refills does not tend to dry out like a standard Rollerball. This is important for a twist pen application.

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Last edited by MRDucks2; 12-03-2017 at 08:58 PM.
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