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Is there any Ink that is fountain pen compatible and does go transparent (permanently) when heated up? I've seen this crowd funding campaign: https://igg.me/at/rocketbook/x/13511842 Basically this is a notepad which comes with a smartphone app then and it is reusable by heating it in a microwave, works with the pilot frixion pens because they fade away with heat. I think the idea is really great but I wouldn't really like to use a ballpoint frixion pen to use the notepad, I'd rarther use my fountain pen... so any hints? Should be around 60°C that it goes transparent, which is the temperature when the frixion ones do turn transparent and to which the notepad is designed. Otherwise I'm probably going to buy one and then print own pages, they do provide the templates anyway.

Does anyone know what material this transparent vintage Sailor fountain pen is made of? It's from the 1980s; the plastic was originally white, but has yellowed. The clear plastic is still clear. Is it celluloid? Acrylic? Something else? Moreover, do I need to do anything special to take care of it (compared with modern pens) and can it be kept with my other (all non-celluloid) fountain pens? It's my first vintage pen (although the photos are from Etsy, and not of my actual pen). Thank you so much!

Hi all, today I was in my local branch of the UK chain of discount stores ‘Home Bargains’. I chanced to walk past their stationery section, where my eye lit upon a sales pack that contained a cartridge-fill fountain pen and two cartridges, for the price of 59p For those of you who do not live in the UK, that bricks-and-mortar store price of £0.59 includes my country's sales tax of 20%. At today's exchange rate, £0.59 = 0.69€ = $0.77. As a ‘purchasing power’ comparison, at the time of typing this the price of a 2-pint bottle of whole milk in my local supermarket is 80p. The ‘huge’ investment outlay gets you a "MADE IN CHINA" transparent plastic pen that has a completely-unmarked nib (which I assume is steel and ‘medium’), and also two cartridges of ink that the packaging describes as black. The cartridges are slightly shorter than standard ‘Short International’ cartridges (I measured them at 34mm long, whereas an SIC is 38mm long), but their nipples look like they might be the same size as those on a SIC. The pen's grip section looks as though it might be slightly too-small for my paws (I am 6'1" tall), but I am certainly curious enough about it to ‘risk’ the sum of 59p to find out Bon; after I have run some dish-cleaning water through it to remove any manufacturing residue, I shall run one of its cartridges through it, and then some Waterman ‘Serenity Blue’ for comparison, and a SIC of ‘WH Smith’ branded black ink too. Once I have collected and collated all this ‘data’, I shall post a review of it on the relevant board here. After all, I wouldn't want to inadvertently be the cause of any FPN user ‘wasting’ their hard-earned 59p on one of these if it turns out that the thing doesn't write very well Cheers, M. [Repeatedly edited to correct FFE's ]

This modest general writing Pelikan was hiding in my wife's desk since, I guess, the 90s. He has a transparent blue body and takes cartridge ink. The steel nib is very rigid but also very smooth and the writing experience is comparable to an M150. Googling turned up nothing. Does anyone know the name of this model?

I have a thing about clear/transparent pens. They don't necessary have to be a demonstrator, but any clear parts attract me. My favorites so far are Omas 630, Franklin Christoph P66 with Italian Ice and Stipula Etruria Blue. What is your favorite clear/transparent pen(s)?

Hello everyone, I would love to see photos of rare demonstrators (both vintage and modern) in the same topic. Since it's been 3 years (already!) since Kenshiro shared his brilliant collection (https://www.fountainpennetwork.com/forum/topic/276249-demonstrator-festival-2014/), I think it's worth it getting the demonstrator people together again. I'm gonna start with this old, probably first generation (metal parts, W. Germany etc.) Lamy Safari Demonstrator (old Safari converter included): This second one is not that rare, but since I could't find pictures of it before buying it, here it goes. It's a modern Wahl Eversharp Skyline Demonstrator. I don't know if it was released under a different name. Notice that this model has a clear cap (different from the currently produced demos with metal caps): I'm looking forward to seeing yours! Regards, Osny

I saw this YouTube video about the Pilot Kakuno with demonstrator/clear/transparent body. Is anyone else really excited for this pen? I like Pilot steel nibs. I like demonstrator pens. And, I like the comfort of the Kakuno pen body. https://www.youtube.com/watch?v=EkNjCHH7K7Q

With the latest Twsbi Eco making news, I decided to give my old 580 another shot just to make sure whether I should go for another. Find one is good enough for me (personal opinion). Here is also a link to my blog: TWSBI Diamond 580 Review Here goes my review of the 580: My sole motivation behind getting a TWSBI was to disassemble the pen and have all the fun, which I missed. And I got a clear demonstrator, packaged with a nice-looking wrench. THE TWSBI STORY TWSBI (called Twiz-Bee) refers to San Wen Tong, i.e when TWS is spelled backwards and it means ‘Hall of Three Cultures’ according to their website. BI at the end refers to writing instruments. Ta Shin Precision manufactured everything from toy lego parts to high-end writing instruments for several luxury brands (both American & Japanese) for well over 40 years. So that’s plastic, metal & precision, precisely what’s required to make and sell a nice writing instrument, under your own brand name. Which luxury brands? They don’t reveal those due to privacy agreements. I have reasonable doubt from various reviews that one of them is Levenger. And TWSBI Nibs are said to be sourced from JoWo (earlier it was Bock & Schimdt), Germany (same as for Faber-Castell Design Pens). THE FPN CONNECTION An FPN member by the name of speedy started a post with a prototype development for an inexpensive piston filling fountain pen somewhere around late October, 2009. He clarified that he was a pen-maker and shared pictures of TWSBI 530 prototypes in this post. It showed a metallic piston system. And it became a popular brand within a short period of time. http://1.bp.blogspot.com/-aXanzzgVZpc/Vb2tFd_RXXI/AAAAAAAAFAc/VMOIxx7069c/s1600/Prototype.jpg PRESENTATION That’s probably one of the great aspects of marketing. Inside a brown cardboard box, you will find the pen residing within a clear plastic case. You will instantly fall in love with the presentation part of it. For the lack of a better word, I call it The Apple packaging. http://4.bp.blogspot.com/-2v-U9j8mEdg/Vb2r5a2wXVI/AAAAAAAAE_Q/PCrDoboa4xw/s1600/DSC_4802.jpg There is an instruction sheet on disassembly of the pen, highlighting the pen parts. Below the white pen-holding shelf, you will find the 7mm TWSBI wrench and a vial of silicone grease in two slots. http://2.bp.blogspot.com/-1wEqgLBfRVA/Vb2tSxNRwAI/AAAAAAAAFA0/8dvHgT0DmhA/s1600/box.jpg DESIGN - THE GEOMETRICAL TRANSPARENCY (4/6) The build looks sturdy without adding much weight. Plastic economizes both cost and weight of fittings. This pen endorses practical utility rather than art with which you will probably associate a Pelikan or a Visconti. I do find an element of industrial look with the pen. http://4.bp.blogspot.com/-COLWtQyBr-o/Vb2rvkWHSqI/AAAAAAAAE_I/_C5pGu7HVTk/s1600/DSC_4833.jpg Most of it is visible engineering, while use of plastic is quite evident in its piston-system. The barrel and cap are made of thick polycarbonate, with a protective heat treated layer for increased resistance to scratches, along with the crystal transparence. The overall fitment is still an area of improvement. One of my experiences is with the piston knob, which does not tighten itself well, as the piston head is pulled back in. http://2.bp.blogspot.com/-vVlXAJhf34U/Vb2r7Unlx0I/AAAAAAAAE_Y/A6R6VKiUpMQ/s1600/DSC_4829.jpg The cap feels substantial and unscrews with a single turn, revealing a rather dagger-like nib. There is a metallic insert for the nib unit, supplying necessary chrome accents for the aesthetics. The piston knob has a rather broad ring making the mark for disassembly. Multiple polygonal planes orchestrate light effectively within, dazzling both the pen and the ink inside the barrel. The decagonal geometry also prevents an open pen from rolling away. http://1.bp.blogspot.com/-5lnoYSQczHQ/Vb2sO5WHmuI/AAAAAAAAE_w/coWF8V-uyck/s1600/DSC_4837.jpg The cap has a wide chrome band carrying a laser engraved TWSBI on one side of it and DIAMOND 580 TAIWAN on the other, in three separate lines. Two concentric circles run on this band in the form of imprints. The finial carries a vibrant red & silver TWSBI logo of three pillars within a dome of transparent acrylic. The clip is spring-loaded within a visible system having a chrome tassie and it has a geometrical pyramid-like cut. The cap is heavy and has a smooth circular cross section which can roll the entire pen easily with its weight, until the clip restricts it. You can also observe the relatively greyish inner cap, which prevents the nib from drying out. http://4.bp.blogspot.com/-hvFDb1IoLBQ/Vb2tS3yDViI/AAAAAAAAFA4/O1cIkYuxahU/s1600/cap.jpg FILLING SYSTEM (5/6) As a piston filler, it does have a good ink capacity around 1.8~2mL. The knob unscrews with three complete turns and manages to draw ink quite efficiently from the bottle. The feeder hole is rather a channel to enable efficient ink suction. One of the improvements could be with the piston knob, which should increasingly tighten itself, as the piston head is pulled back in. Mine stays loosely fastened (after I applied some silicone grease on the piston head) and is directly proportional to the friction at the piston head. http://3.bp.blogspot.com/-zyu-R2d4OIY/Vb2tEOw3cII/AAAAAAAAFAY/b53TOE9_aQc/s1600/Filler.jpg DISASSEMBLY For this phase, rather than learning from the manual, you can have a look at a 580 disassembly video. I like the one with gouletpens or srebrown. Make sure you thoroughly flush the pen with water before disassembling it. 1. Rotating the piston end-cap counter-clockwise, the piston seal is lowered to a hinged stop inside the barrel. 2. Fit the wrench just below the piston-end-cap, which can unscrewed in a clockwise direction from the piston-knob. http://4.bp.blogspot.com/-NUkTmOyn-1U/Vb2sxi3fPxI/AAAAAAAAFAI/7YzC3qXppfM/s1600/DSC_4903.jpg 3. The piston mechanism has five different parts as you can see in the picture, though it’s not necessary to remove the rubber piston seal (or head) from the piston rod (spindle). The fittings of the mechanism can be made from higher grade material. http://1.bp.blogspot.com/-I1IdSoPmNms/Vb2sps-rsbI/AAAAAAAAFAA/LSsSEwOPHFE/s1600/DSC_4913%2Bcopy.jpg 4. The nib unit can be easily removed by first unscrewing the grip section from the barrel. 5. Since, nib is friction fit, you may remove the nib and feed from the unit, in case there is some heavy cleaning required (in case of a bad flow, sometimes the feed is coated with grease which restricts ink-flow). 6. Make sure you apply an adequate amount of silicone grease to the sides of the rubber piston seal (you may ignore the bottom surface) before reassembly. NIB - ALL THAT MATTERS (4/6) The nib/feed unit can be taken out or apart for cleaning purposes. The nib is stainless steel and has a rather small dagger-like design. It comes with four stock widths - EF, F, M, B and two special widths of Stub 1.1 & Stub 1.5. http://4.bp.blogspot.com/-pUw5Vdlnev4/Vb2sIzRr7-I/AAAAAAAAE_k/h6rOBMIZtfQ/s1600/DSC_4877.jpg The tail end specifies carries the nib width while the name TWSBI along with the logo rest above the tail. There are some curves adorning the inside symmetry of the tines. To be honest it’s kind of a plain design with limited nib leverage. A black plastic feed with a feed channel for ink suction and the thin fins on the other side ensures a good buffer capacity and prevents hard-starts. http://4.bp.blogspot.com/-vdkLuAmZ2NI/Vb2sJai3UzI/AAAAAAAAE_o/fZXFoCmyeW8/s1600/DSC_4893.jpg Earlier, TWSBI used to source its nibs from Schmidt and then Bock, which is incidentally the nib-supplier for Faber-Castell too. But it’s the alloys and then post-processing that can make a lot of difference even in steel-nibs. PHYSICS OF IT (6/6) – RELATIVELY SPEAKING The pen filled with ink, does have a good balance in terms of both weight and length. The pen is not meant to be posted. The grip is quite comfortable with a section around 1 cm thick. Uncapped Length ~ 13 cm Capped Length ~ 14 cm Nib Leverage ~ 2 cm Overall Weight ~ 28 g (Cap Weight ~ 14 g) Capped and uncapped and posted with a pelikan m805 runs below for your reference. A capped 580 looks similar to a m805. http://2.bp.blogspot.com/-NlHUezEy6vA/Vb2soSwhyvI/AAAAAAAAE_4/yewH-68smxg/s1600/DSC_4929.jpg Uncapped it obviously lacks the nib of a m805, although the lengths are well-matched. http://3.bp.blogspot.com/-zIo52iiZJXE/Vb2tCnSS2lI/AAAAAAAAFAQ/0xh7oZmbYUU/s1600/DSC_4937.jpg ECONOMIC VALUE (4/6) It retails at around Rs 5,500 ($ 86) here and I got it from a local store at around $ 70. The problem with ordering it from TWSBI’s website directly is that apart from heavy shipping charges, there are unseen duties to be paid for. Given the fact that you could get one of the usual butter-smooth and more responsive steel-nibbed Faber-Castell pens at a similar or even lesser price, it’s rather a decision of piston vs converter. I hope that the retail prices will get evened out with demand. OVERALL (4.6/6) This nib is wet with a hint of feedback which is expected of fine nibs. I purposely used a less wet ink, since the pen runs smooth with wet inks. There is some line variation which is evident with thicker vertical lines. A complete absence of any perceptible softness in this nib, kills the responsiveness part. The fine nib lays a line which runs between Japanese Fines and European Fines. Being a wet writer out of the box, the Fine nib puts a line which takes around 16-17 seconds to dry on MD Paper with Pelikan 4001 ink. http://2.bp.blogspot.com/-CwXFByod9IE/Vb2tIszp84I/AAAAAAAAFAo/K60KSx721a8/s1600/DSC_4943.jpg INNER CAP - INK RESIDUE In case you find any ink trapped between the inner cap and the cap, a wooden pencil fitted with attached eraser, can help clean it. I have experienced this kind of leakage during air-travel. 1. Take the wooden pencil (Standard #2) and insert the eraser-end into the cap. 2. Bend the cap in one direction, while putting pressure on the eraser in the opposite direction. 3. Slowly use the friction created by the eraser to pull out the inner cap. 4. Wash the ink out (Plain water is fine). 5. Re-insert the inner cap, and screw the pen back in, and it should friction-fit back into its original position. REFERENCES FPN TWSBI Bock Clientele Ink Residue Disassembly - gouletpens, srebrown Thank you for going through the review. You can find some more pen and paraphernalia reviews here.

Finally managed to visit the Wality factory in Mumbai and bought two demonstrator pens - the 69T and the 71JT

I thought fans of demonstrators might find this photo of a 1940 Pontiac interesting: http://www.shorpy.com/node/19380 ETA: Scroll down for a night shot.

One of my recent Sheaffer acquisitions has a very hazy, fuzzy ink view, pretty much opaque unless held up to light. I believe it has been heat or environmentally exposed to make it that way. Is it possible to sand/polish off or treat the hazy part to get a clearer ink view underneath? Not a crucial thing, as the pen works superbly otherwise, but would be nice to make the view section clear again, at least a bit more so.

Here is a link to the sailor lineup of Toh mei kan, pens, inks, and converter: http://www.sailor.co.jp/lineup/tohmeikan/11-2014 (with google Jpn ==> En translation) Don't know when it was introduced. But here it is.