Schmidt 400 and RB systems
Hi Dan,
For more info on the Schmidt 400 piston filler use the search function on the IAP Site, Scubaman has a nice example. There are threads on either side of the ink window which are metric. The front thread is 10 x .5 and the back one is a strange size, 10.2 X. 5. One member (Idb2000) shows an example where he turned off the threads and glued the body on with epoxy. I have the blueprints for both piston fillers, if you want them just PM me.
The Schmidt Rollerball System uses the M6.4 X. 5 tap available from Mike at Independence. I have used the tap to chase the threads on Triton and Baron fountain pens and then replaced the nibs with the rollerball nibs. It is a great system you can use a cartridge or a converter. If you use a converter you can stick the nib directly into a bottle of ink and fill it like a fountain pen. I am working on a kitless section for this system and will post it when I am finished.
Tony