I've wanted to make a pen with an ink window for a little while, more as a technical exercise than anything else. This pen uses a cartridge/converter so it doesn't really benefit as much from having an ink window in the way a piston/vac filler does. However it could be converted to an eye dropper very easily in which case the window is useful. It's a first step in my plan towards making an entire filling system.
The pictures here show it filled with red ink.
The cap threads are 13mm and the barrel is 15mm at its widest part. The bit I was really focusing on was how to get the window close to the cap threads without the internal threading for the section being visible through the window. It gets quite tight around there and you don't have a lot of room to play with.
On the whole I'm happy with how it came out.
Cheers
Ash
The pictures here show it filled with red ink.
The cap threads are 13mm and the barrel is 15mm at its widest part. The bit I was really focusing on was how to get the window close to the cap threads without the internal threading for the section being visible through the window. It gets quite tight around there and you don't have a lot of room to play with.
On the whole I'm happy with how it came out.
Cheers
Ash
