Hey guys, I just came from another thread where someone did a review of the Preppy after they glued the body on and instead filled the eyedropper by a small hole + syringe after taking the nib off and that made me think about alternative designs that don't require the silicon grease.
This is all just theoretical and I don't own a preppy myself at the moment (I gave mine away to a friend who was fountain-curious).
The reason for this is someone in the same thread also mentioned the ability to toss a Lamy nib on the preppy, but that it was very hard to get back out again. I wouldn't mind doing this mod for myself, but I can't be arsed with the re-applying of grease every few fills.
So the idea would be to glue / waterproof the threads where the barrel screws on.
Then, using a saw and a file, take a little off the very end of the barrel, leaving it open. Use the file to smooth it out and make it flush.
I've roughly guesstimated the opening would be about 10mm (which equates to 3/8ths of an inch, according to the interweb).
The idea is then to friction seal the end with a small plastic cap:
If you can find a cap size that would fit tightly enough, yet have a little lip over the barrel, you could potentially get an ink-tight seal that could be removed and then replaced for filling. Or if the screw in type work, then that would be even better. Maybe the plastic could be heated and moulded around the screw in yellow type.
Just throwing random ideas around, as I said, I don't have the resources atm to try this out for myself. But if anyone with a preppy and plenty of time on their hands wants to give it a go, let me know how it goes.
Alternatively, you could drill a smaller hole in the side of the barrel if you could find a smaller plug, that might work better as you could suit the hole to any plugs you could find off hand.
Edited by WirlWind, 09 February 2014 - 06:36.