Saturday, 27 April 2013

Security Issues @ Fountain Pen Network

Like yikes scoob!

It looks like the security issues that have plagued the Fountain Pen Network (well... it's only been a few days, so hardly a plague. Certainly, a nasty rash) are still proving problematic, as of today (27th April). I've flushed my DNS cache, and cleared my FireFox cache, cookies and so on, but after a brief spell of very slow access, it's now back to dodgy pr0n redirects and nasty virus alerts!

This looks scary.
I won't titillate your imagination with the page that automatically follows this warning; suffice to say it gives the proprietors of 'Enrazzlement' magazine a run for their money. Best to stay off the forum another few days, methinks.

Friday, 19 April 2013

Kaigelu 316 Plunger Filler: Epilogue

"...And the rabbi's beard? 100% horsehair. Nice catch C.H.E.E.S.E.!"
Mac and C.H.E.E.S.E. wrapping up another case.

After all the industry of the last few posts, I thought it might be a good idea to report on how the Kaigelu plunger filler is settling in as a writer. Last night, it was brimmed with ink, just to see how the nib's standard feed copes with a full tank behind it (tip - drape a paper towel over the nib when playing Gouletian roulette to cheat the house of any staining potential!).

I'm happy to say that the pen has been fine all day, with even and consistent flow, no burps or drops to speak of. The nib on this 316 is smooth and well behaved (as it was before the filler modification), with no skips or hard starts. Huzzah!

Jolly good: Rymans Pocket Notebook, Kaigelu 316.

In other news, I notice that the Fountain Pen Network is down again this evening, this time due to a DDOS attack!

So what are you going to do about it? Just sit there? Of course not! You're going to meet the threat toe-to-toe, Queensberry rules. Enlist today!

Wishing all a great weekend,


Tuesday, 9 April 2013

Kaigelu 316 Plunger Filler:Thanks, No Thanks!


Shanghai Kaigelu Stationary Company:
eBay vendor "jewelrymathematics" for the pen:
The Peep Show Review Blog, for reminding me of "Project Zeus":, great source of old Onoto filling instructions:
and historical background:
and even a clear explanation of plunger filler design and back pressure issues!
And even a hint to grind seals to size on the supplies page!
The TWSBI Vac700 product page:
Gorgeous new plunger fillers to covet at Onoto:
Francis Goossens' excellent shifting o-ring plunger stem design:
Richard Binder's potted history of plunger fillers and the various solutions employed to ameliorate back pressure issues:
Fountain Pen Network member Paul Barreto's mention of Diamine ink Ph neutrality:
Iamblichus' On The Mysteries of the Egyptians, Chaldeans and Assyrians. Syria today could do with a few more Neoplatonists. Reopen the schools!
Marlow's The Tragical History of the Life and Death of Doctor Faustus:
The Sheaffer PFM reference page at
Fountain Pen Network member ashbridg's thread showing the original felt packing in a vintage Sheaffer:
Comasarchive's YouTube clip of a hilariously un-pc Sheaffer PFM television advert:
Fountain Pen Network member(s) RichardandTracy's review of the Kagielu 316, which convinced me to buy one, and explanation of its manufacture:
Onoto's remarkable story of a vintage plunger filler recovered from the seabed, for the ink shut off valve description. And the interesting read!
The Goulet Pen Company's Plunger Filler volume maximising technique
FPN member Arandur, who runs the Built From Ink and Tea blog, for checking the photo gallery was working after Photobucket Beta wierded up all the thumbnails.

No Thanks!

Photobucket Beta, for the tremendous headaches and delays. Do the right thing chaps - a quick mea culpa announcement, then scrap it. Bring back the old (working!) site, you'll be hailed as heroes within a week.

Kaigelu 316 Plunger Filler: Further Mindthots

Finding myself reluctant to call time on this series of posts, I've been putting back this post; there are only a few further mindthots to scoop out and slop into this blog-bound canopic jar. This was a really, really enjoyable mod on the whole. There's no qualifier coming after that sentence; making up an effigy of Sweetser's plunger filler and hammering it into a cartridge pen was just joyful.

It's satisfying to see things come together for the Kaigelu too; the exoticism of a plunger filler complements the fancy-pantalooned 316, the loose section sleeve problem is banished, and the poorly made factory piston converter languishes at the very bottom of my parts drawer. I also think it makes better sense for a big pen like the Kaigelu to be given a decent ink capacity - it always seems a bit odd to me when you open up a cavernous pen like this, to discover a diminutive converter with an ink volume roughly the size of the feed!

Vade retro, problematic twist converter!

What You Get From This Mod
  • A beautiful, fairly robust, and simple to maintain modern plunger filling fountain pen, with a single-stroke capacity of 1.5 ml - comparable to the TWSBI Vac700 - for £33.20 including pen, parts (including plenty of spares) and shipping.
  • Some pricelessly enjoyable experience messing around with parts and tools.
  • High stakes gambling fun via "Gouletian Roulette", the Goulet's stain risking, ink maximising fillling technique (this Kaigelu manages 2.2/2.3ml, tested with water rather than ink to spare my clothes).

What You Don't Get

  • Firstly, transparency. The Kaigelu 316 comes in three finishes. This "charcoal" example (as if charcoal ever looked this good) is totally opaque, so you don't get to see the mechanism moving through the barrel, or the ink filling up, or sloshing about in reserve as you write. There's a sort of marble white finish that has some transparency, judging from photographs in Tiptricks review on FPN.
  • Secondly - an ink shut off valve. While not strictly necessary - how many modern day eyedroppers do you see with them? - I would like to attempt shoehorning a ballpoint style twist on/off shut off valve into the blind cap at some stage. For another time, perhaps.
  • Thirdly, a perfect testbed. The Kagelu has a decent amount of space to work with, but the high section thread placement and heavy finial do make life harder than it needs to be.
Late in the build, a thread on FPN caught my eye. I've never heard of "Wancher" brand pens before, but the Sunflower model might be an even better candidate for this mod than the Kaigelu, allowing more of the barrel to be put to use, and eschewing the use of metals in the section threads and blindcap.

That's not to say the Kaigelu isn't a good pen - it is an outstanding pen. To my mind, its only major flaw is the poor design of the section sleeve, and the flimsy converter itself. Neither issue needs anything as involved as retrofitting a plunger filler to sort out - they can be sidestepped by installing a decently snug international cartridge, shellacing an ink sac over it, and leaving this in place as permanent arrangement.

In reflection, there's a fair few things I'd do differently with this first conversion under my belt, some to do with design, others execution.

The foremost, is that I would definitely go for a multi seal packing stack, this would hopefully trap grease where it is needed, and reduce the need for eventual regreasing of the plunger rod. Sacrificing some more of the finial's spigot would help create the space for this, further reducing the top end heft.

With a little more trimming, or a little less capacity,
the 316 could be persuaded to accomodate a multi-seal packing stack.

As the use of retaining circlips makes swapping out the packing stack quite fast, it would be easy to have a go experimenting with Sheaffer style felt packing, or the cork gaskets favoured by vintage Onotos. The techniques required while shaping cork certainly look diverting!

Secondly, to keep the section ink-tight, I've sealed it to the barrel with shellac. Nothing wrong with that - especially if ink based corrosion of the metal section were an issue - but the placement of the section threads offers another opportunity. They don't begin until some length off the shaft, so it could be possible to make use of the blank space by hollowing out a shallow channel in the metal, and installing a rubber seal for ease of overall disassembly. I'm less bothered about trying this out on the plunger filler, but the possibility is there. On reflection, this would probably be quite useful in an ink shut-off enabled Kaigelu eyedropper...

Arrowed - potential section gasket area.

On the manufacturing side, lubricating the sliding seal with soap, rather than silicon grease, would have been more sensible when testing for fit, to prevent any grease getting on threads that would be shellacked on final assembly. Speaking of that sliding seal, something I didn't consider, for some reason, was the possibility of using an Imperial, rather than metric, sized O ring. An Imperial size might have been a better fit in the barrel from the get-go, needing less grinding down to size.

Cutting the packing unit circlip grooves I now know to be best done by hand, it doesn't take too long and gives you more control over the grinding head!

Finding a new method for grinding out the vacuum release chamber is also something I would have a good think about if I attempted this again. Before clumsily enlarging it, maximum ink capacity was tested at 2.8ml, which is very close to the volume of the barrel! Recently, I have been scribbling out some doodles, trying to think up a way to avoid grinding a release chamber at all. If the sliding seal could be made and broken on command via the blindcap, might the need for a vacuum release chamber be bypassed? Sort of a salt shaker top scenario at the bottom of the plunger rod. Come to think of it, there's your shut off valve too.

Please don't laugh, this makes sense in my head.

Vacumatic versus Vacuum Plunger filling
In isolation, I think I prefer the single stroke vacuum plunger filling system over the multistroke vacumatic - both the build and in operation! I would like to see it married to a collector though. Maybe after living with the plunger filler a while, I'll write a comparison-style post.

Next up: Thanks, No Thanks!
References that helped, and villains that hindered this project are presented for praise and pillory in the next post.