Sailor Cartridge Mod

[Tseg]

I just spent several days writing my Sailor KoP cartidge mod empty.

 

In using my syringe to measure, the standard cartridge contains .9mm to the seal or 1.0 mm if you take the ink to the lip of the cartridge.

 

My modified cartridge holds 1.35mm/1.45mm.

 

OEM: 1.0ml/49.65mm

Mod: 1.45ml/67.40mm

 

(Converter: .4ml/28.5mm)

 

Variation: 45%/35.8%

 

I can't really explain the variance.

 

What I can say is it took days to empty my mod-cartridge. If you believe the converter is only .4ml, my mod is 3.6X the volume and in its use it felt like it.

 

How did I do it?

I used Parafilm tape. So what is Parafilm tape? It is used in tree pruning to wrap freshly cut branches. The tape is sticky on neither side, rather it is like a tape version of Saran Wrap, where when stretched it tries to shrink back to original form and that shrinking action makes it adhere to what it is wrapped around. I cut the end of one used cartridge and the beginning of the other. In the picture you can see the modded cartridge ends at the silver ring of the barrel. It is feasible I could have cut the cartridge a bit longer to add 4-5mm or 3-3.5ml more in my KoP. Maybe I did not need to wrap so many layers but my cartridge is firm and my barrel is wide, so no issues. I did have to work around the metal bits the cartridge feeds into, so had to ensure I kept 27.3mm tape free on the originating cartridge to get it to slide properly in place.

 

One additional point, someone has advised the KoP ink feed houses an additional .4-.5ml.

 

I can't explain the length vs. volume variance. I remeasured a few times and listed above is my most conservative discrepancy.

 

At the end of the day I have a very wet writer with a broad nib and it took days to run it out with significant writing. The ink flow was fantastic through the duration. In summary, I have no issues with my Sailor ink capacity now. I have no desire to eek out that extra .3ml.

 

 

 

 

 

Edited May 19, 2018 by Tseg