Monz
July 25th, 2016, 05:27 PM
We have 3 Kaweco Sport pens in the house. The commercially available sac type ink converter holds a tiny amount of ink and the newly introduced “piston” type converter is only slightly better. My 13 year old son (who is a fan of the Kaweco Sport) and I decided to make our own larger capacity ink converter. It only took a few minutes.
Items required (Fig 1):
25949
Used/ empty Kaweco ink cartridge
Size 18 Latex ink sac or Size 17 Silicone ink sac
Sharp knife
Shellac
Ruler
Procedure:
1.Take an empty Kaweco ink cartridge and cut it 5mm from the ridge (see Fig 2)
25950
2.Cut the sac so that it is 4.7 cm long (see Figs 3 and 4)
25956
25952
3.Apply coating of Shellac to end of cut cartridge (see Fig 5)
25953
4.Pull the open end of the ink sac on to the end of the cut cartridge (see Fig 6)
25954
5.Allow the Shellac to dry.
That’s it!
See Fig 7 for comparison with commercial converter and a ink cartridge.
25955
The home made converter can be filled to the brim using a two stage squeezing technique: the first one or two squeezes will half fill the converter. At this stage, take the pen out of the bottle and hold upright with the nib pointing upwards. Tap the converter so that the ink settles at the bottom of the converter where surface tension will hold it. Then put the nib back in the bottle and squeeze out the air pocket and wait for more ink to be drawn up… the converter should now be almost completely full of ink.
Items required (Fig 1):
25949
Used/ empty Kaweco ink cartridge
Size 18 Latex ink sac or Size 17 Silicone ink sac
Sharp knife
Shellac
Ruler
Procedure:
1.Take an empty Kaweco ink cartridge and cut it 5mm from the ridge (see Fig 2)
25950
2.Cut the sac so that it is 4.7 cm long (see Figs 3 and 4)
25956
25952
3.Apply coating of Shellac to end of cut cartridge (see Fig 5)
25953
4.Pull the open end of the ink sac on to the end of the cut cartridge (see Fig 6)
25954
5.Allow the Shellac to dry.
That’s it!
See Fig 7 for comparison with commercial converter and a ink cartridge.
25955
The home made converter can be filled to the brim using a two stage squeezing technique: the first one or two squeezes will half fill the converter. At this stage, take the pen out of the bottle and hold upright with the nib pointing upwards. Tap the converter so that the ink settles at the bottom of the converter where surface tension will hold it. Then put the nib back in the bottle and squeeze out the air pocket and wait for more ink to be drawn up… the converter should now be almost completely full of ink.