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26 Oct 2016 :The best way to insert a standard international/china standard cartridge.
I made an observation when getting the pelikan 4001 ink to work with my j herbin clear/demonstrator pen. The pen is completely dried. After insertion, there was no ink flow. not even when
1) i place it nib down for a while
2) i squeeze the cartridge a little.
getting frustrated, i observed the drain from the cartridge to the nib. Firstly, when i place it nib down, there is still no ink flow.no ink movement from the cartridge to the feed. and being a demonstrator, i can see the drain very very clearly. dry. no ink flow. secondly, when i squeeze the cartridge, yes, there is a surge of ink from the cartridge to the feed and reaches the nib, but when i release, the ink get sucks back. even if i have remove the cartridge and reinsert the cartridge, same thing happens.
conclusion: both methods do not really work just like that.
solution: the way to actually insert a cartridge is actually a science. You insert a cartridge with the nib facing down. reason ? it allows the ink to sudden shoot out of the cartridge due to the sudden build up in pressure in the cartridge, which will land in the drain of the feed. inserting the cartridge upside down is safer at first glance, but doesn't help much for the ink to flow to the nib faster. This principle applies to even cartridges which have being punctured. So, if you have a pen with cartridge and had left it alone for quite some time, this method will help you to get the ink to the nib faster.
So, coming back. I removed the cartridge, turned its hole down. It will not leak since the hole is small. Then reinsert the cartridge into the pen with the nib down. The first time i tried this method, ink flowed into the drain immediately, but it still did not reach the nib. I repeated this process another time and the nib received the ink. So, squeezing isn't needed at all.
And the pen itself....:
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14 Nov 2015 : The importance of the feed
A little tutorial on the importance of a feed to the performance of the
pen. These 2 online Germany nib looks similar in nib and feed shape, but
on closer examination it isn't. Look at the extra slits given for the
0.8 nib and the sublte difference in the feed structure. While I will
not go into the details itself, do note that the feed and nib are one. A
nib will not write well without a good feed. So if you pen doesn't
write well, work on the feed for ink flow too, and touch the nib only if
the ink is really flowing to it. A scratchy nib can be due to bad ink
flow that the nib being a problem.
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24 Nov 2015 : The Fins on the feed
Again, a little illustration on the importance of the fins on the feed, and how it isn't the end of the world if some are lost. This feed on a hero pen was damaged for, well, some purposes. Yet, with this amount of damage, this pen still writes well (even better to be exact) and doesn't leak. The threshold isn't reached yet for it to leak.
So folks, do not be too alarmed if some fins have turned left or right or has decided to leave. The pen can handle these problems. That's the magic of a fountain pen. :)
2Apr 2016: External fins on the feed, is it important?
The nib and feed on the top belongs to diplomat, european made.
The nib and feed at the bottom belongs to pilot, japan made.
Do they both have external fins? No. This should be an open and shut case as to the need of the external fins in modern pens.
External fins were crucial in the times of eyedroppers, and is still important in eyedroppers/pistons/vacumatic to further prevent leakages, if it is well calculated and well made. Else, it is there for aesthetic purposes for the general public and used by experienced feed makers as identifiers for the feed. Those details, are for another day. :p
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