PMark 1 Version 1 build 1 configuration 8 - vanishing nib project

Vanishing nib mark 1.

a prototype retractable fountain pen. single hand operation.
to use, simply press. to retract, pull.
there is a cap in the front of the fountain pen that covers the nib when retracted, and opens up to allow the nib to go through when depressed. kaweco nib unit and a converter is used. to refill, the whole unit can be removed from the rear.
this is a prototype only. It writes as well as the kaweco nib can offer =p

inked up with pelikan turquoise for testing. When retracted. The ink do make the "cap" messy with the ink left behind.

extracted bottom view.

extracted top view. the spring behind the nib is compressed. the spring is needed when retracted.