Stellite is cobalt-based, meant for wear & corrosion resistance...?
Which I usually read as "hard & brittle", wouldn't be improved by sintering.
How's that compared to Spring Steel?
Have you modelled the whole pen?
Truth be told, I've got a Kaweco Sport and Pilot Kakuno sitting next to be 3D workbench for inspiration. Wondering what's a neat way to mod them for a clip or something else... add-on accessories are already out there but don't really match the pens.
Been thinking I should model (or get said model) the whole cap & then mod that for integrated clip.
Sorry for replying so late,
1 For CoCrMo, if you use annealing process, it will provide better toughness compare to some Unannealed spring steel. But it still lack elasticity compare to those top high quality spring steel with perfect annealing. I choose this material because it won't rust in most general enviroment.
2 Actually, a friend of mine has made a whole titanium pen so I directly buy it from him.
3 Use or lend a professional 3d scanner and convert it to stl file. But to be honest, Clip may be not suitable for Pilot Kakuno, because I also try to build a 3d file for it but the cap has to many curved area. Beside it also has a small pen stop so an extra clip may looks very strange. As for Kaweco, a cheaper way is to measure one side length of the hexagon cap and then draw a standard hexagon as the clip Cross section. To meet the clip match perfectly. You can also expand this hexagon 0.1mm or 0.2mm so that the clip can fit surface better. Integrated clip is ok, but it may be harder to repaired.
Edited by VonPG, 05 January 2020 - 16:21.