TWSBI 580 Disassembly
TWSBI has instructions inside their fountain pens showing how to take it apart, but I find that taking apart and putting a pen back together is shown best in a video. This demonstration will show you how to take apart and reassemble a TWSBI 580 fountain pen, but the piston assembly is exactly the same for the 540, 530, and Mini, so these techniques will work the same for all these pens. If you've ever struggled putting your TWSBI pen back together, this is the video for you.
