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For questions regarding the use and maintenance of pens. You can ask after techniques, corrections, the combination with other materials, calligraphy, and more.

4 votes
1 answer
343 views

What is the purpose of the ink delivery disks found in most rollerball pens?

In most rollerball pens there are those peculiar looking disks near the nib, the purpose of which I have not yet figured out, apart from being some kind of ink reservoir/flow control. … See Pilot V5/V7, Uniball Rollerpens, Sakura, etc., for reference; this is a common feature found in a lot of Japanese pens. …
Chern-Simons's user avatar
0 votes
1 answer
503 views

Best Pen for Maths? [closed]

I'm a maths undergrad and I am looking for a very smooth pen that's good for speed writing symbols and iterations (like a pencil?). Uniball Air Micro and Elite Vision both seem to have some good revie …
Chern-Simons's user avatar