2017May28
The Desk: Penatomy - TWSBI Micarta
The cartridge / converter ink systems are very common in contemporary fountain pens and the TWSBI Micarta features this system. This ink filling system has many benefits with the only downside being that the ink capacity is less than those that feature an integral ink reservoir (and maybe it isn't as fun to watch fill with ink as say a vacuum filler). This type of pen design opens up the option to using ink cartridges which is handy when you need a refill on the go or travelling. This ink converter is a piston type. To fill the pen you need to turn the knob element at the end of the unit to drive a piston either up or down inside the ink reservoir. This action will either draw ink into the pen or discharge it. Ink converters / cartridges are friction fit onto the nib section and come in a few differing sizes, the TWSBI Micarta is an International size unit which is common for a variety of pen brands. Some companies have proprietary sized converters/cartridges like Waterman, Parker, Sheaffer, and Lamy to name a few.
One important discovery that I have made is that not all converters work like you would expect, on two (2) separate pens I have experienced flow issues were the ink was drying faster than expected and pen had trouble starting when put to paper. At first I thought it was the ink, then the nib, but the issues were resolved by swapping the converter. An easy way to tell if the converter is the problem is to use an ink cartridge with the pen that is giving you trouble and if experience no issues when using the cartridge, a simple replacing of the converter is all that the pen needs.
The design of cartridge/converter pens separates the ink delivery system from the ink storage system making it easy to maintain, clean, and service. A great design for those that prefer to use many different inks as it takes very little effort to flush the pen clean of any ink and if the ink happens to stain the converter, replacing the converter is not too costly.
With the Penatomy series of posts the idea is to dissect common filling systems to show the component parts that make up our favourite writing instruments.

Gord A
A student of Architecture that is very particular when choosing a tool.
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Content
- Pen Review: TWSBI Eco
- The Desk: Penatomy - TWSBI Micarta
- Ink Review: Corn Poppy Red by Mont Blanc
- Ink Review: Rome Burning by Noodlers
- The Drawer: 18 again - 8th Update
- Pen Review: Mont Blanc Meisterstuck #12
- Ink Review: Blue by Pilot
- 8th Addition: Omas / Levenger Articula
- Ink Review: Oyster Grey by Mont Blanc
- Ink Review: Mystery Black by Mont Blanc
- The Drawer: 18 again - 7th Update
- Pen Review: Lamy 2000
- Ink Review: Lexington Grey by Noodlers Ink
- Ink Review: Sepia by Platinum
- 7th Addition: Visconti Michelangelo
- The Desk: Ink Fill Solution for Large Nibs and Plunger / Vacuum Fillers
- Ink Review: Black Quink by Parker Pen Co.
- The Desk: Architect's custom nib grind
- The Desk: Penatomy - LAMY 2000
- Ink Reveiw: Heart of Darkness by Noodler's
- Ink Review: Solferino by Rohrer & Klingner
- The Drawer: 18 again - 6th Update
- Ink Review: Jentle Black by Sailor
- Pen Review: Eversharp Skyline
- 6th Addition: Waterman No.7 and Aurora 98T
- The Desk: Penatomy - Parker 51 Vacumatic
- Pen Review: Parker Vacumatic Jr
- The Desk: A Quest for Flex, a modern wet noodle.
- Ink Review: Golden Brown by Noodler's Ink
- Ink Review: No.8 Diep-Duinwaterblauw' by P.W.Akkerman
- The Desk: How make your handwriting a computer font.
- The Drawer: 18 Again - 5th Update
- Pen Review: Esterbrook "J"
- 5th Addition: Skyline, Meisterstuck No.12, and Duofold Jr
- Ink Review: Sheaffer Skrip Red
- Ink Review: Diamine Green Black
- Pen Review: Pelikan 400NN
- Ink Review: No.5 Shocking Blue by P.W.Akkerman
- Pen Review: Parker Striped Duofold
- The Drawer: 18 Again - 4th update
- Ink Review: Intense Black by Waterman
- Ink Review: Absolute Brown by Waterman
- 4th Addition: Lamy 2000 and Esterbrook model J
- Pen Review: Parker Duofold Jr. 'Lucky Curve'
- Ink Review: Blue/Black Quink by Parker Pen Co.
- The Desk: Ink test for cleaning and staining
- Ink Review: Black by Noodler's Ink
- Pen Review: Parker 50 'Falcon'
- Pen Review: Parker 51 Vacumatic
- The Drawer: 18 Again - 3rd Update
- Pen Review: Waterman Lady Patricia
- 3rd Addition: 3 Parkers and a Pelikan
- Pen Review: TWSBI Micarta
- Ink Review: Rattler Red Eel by Noodler's Ink
- Ink Review: Stormy Grey by J.Herbin
- Pen Review: Edison Beaumont
- The Drawer : 18 Again - 2nd Update
- Pen Review: Sheaffer No Nonsense
- Ren Review: Pilot Custom 823
- Pen Review: Waterman W2
- 2nd Addition : Edison Beaumont, TWSBI Micarta and 580
- Pen Review: Pelikan MK10
- Pen Review: Noodler's Ahab
- Pen Review: Noodler's Nib Creaper
- The Desk: A Vintage Parkette Zepher
- Pen Review: Sheaffer Targa
- The Desk: A donor pen for Waterman Lady Patrician
- The Drawer : 18 Again - 1st Update
- Pen Review: Pilot Elite 95s
- Ink Review : Emerald of Chivor by J.Herbin
- Pen Review: Hero 616
- 1st Addition : Pilot Custom 823, Waterman Lady Patricia, and Jinhao 188
- The Desk: Kaweco Sport converter solution
- The Desk: Must have tools for fountain pen users
- Pen Review: TWSBI Classic
- Pen Review: Waterman Reflectis Kultur
- Pen Review: Parker 51 Special
- The Drawer : First Look
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