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Hongdian M2 Converter (feddit.online)

submitted 4 months ago by Unattributed@feddit.online to c/fountainpens@lemmy.world

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I've had my pair of Hongdian M2's for a couple of weeks now, and last night ran into a bit of an issue...

Originally, I bought two: the brass version with an extra fine nib, and the blue aluminum version with a fine nib. I found that I didn't like the extra fine nib, so I ordered a set of replacement nibs (that has a fine nib) for the brass version.

Last night, I went to re-set up both pens: change the nib in the brass version, and swap the ink in the blue pen. While I was doing this, I noticed on both pens that the converter has an issue. Whenever the piston is fully extended it pushes against the feed tube, which pushes the body of the converter away, and reduces the seal between the two pieces. This makes getting a complete fill of the converter nearly impossible, as air gets into the converter.

Has anyone encountered this issue? Have you done anything to fix this issue? Is there a converter that will fit better in the M2?

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[–] Unattributed@feddit.online 2 points 4 months ago

So: update... After all of this, I got 4 new sets of converters: one set of Hongdian, one set from Schmidt, and 2 "generic" chinese sets.

And, I will say, one of the two sets of generic converters does actually fit better than the original converters that shipped with the M2's. However, all, except the replacement Hongdian converters, were too long. (TBH - I knew the Schmidts weren't going to work - I only ordered them to have on hand for a couple of other pens that I know have Schmidt feeds / nibs, and will take them).

In the end - the replacement Hongdian converters fit much better than the converters that came with the M2's, and don't have the issue of the piston bumping the feed tube. These are so good that I only get about a .5mm air bubble instead of the 2-3mm air bubble I was seeing before.

Although, I wish one of the others could be used. I think one of the generic sets is actually better designed / manufacture than the Hongdian converters. Oh well.

Now I just have a big pile of converters that I can't use at the moment. 😆