How to Make Your Kaweco Sport Write Wetter - Nib and Feed Adjusting Tutorial for Fountain Pens

How to make your Kaweco Sport fountain pen write wetter! ⚠️ Do not attempt this if you cannot afford another nib unit replacement ($14 USD)!

My Kaweco M nib has always given me trouble. When I heard you could MacGuyver the nib and feed yourself with just an Xacto knife & brass shims (super affordable tools, btw) I thought, why not? I had about 4 other nib units to spare. May as well give it a shot.

My first go-around, I was too afraid to damage my feed, and had no idea what flossing my tines would do. So I used the smallest gage of brass, and barely added pressure while razoring the feed channel. In this stage, I think all I did was clean my pen a little. Which was fine. It added a touch of juice. But I needed more.

In stage 2 and 3, I got progressively aggressive. I added more pressure, even going so far as to attempt to shave off sides of the feed channel slightly with my Xacto blade, then flossing out whatever was left behind with my shims. I also graduated to the largest shim size when flossing my tines to really nudge those babies out wider. This gave me the juuuuice I needed! 😍💦 Next time, I’m skipping straight to flossing my feed and widening the channel instead of taking it easy with an Xacto. BUT! Starting gently gave me peace of mind I wasn’t totally nerfing my nib unit.

Now my fountain pen writes with much more lubrication. Like a slip & slide on the page. I’m putting all my shimmers & shaders in here!

Good luck attempting this at home! Save it and share it with your pen friends to spread the knowledge around! 🥰