[duncsuss]

A while back, a penmaker on the IAP and Fountain Pen Network organized a group-buy of taps for the Esterbrook renew-point fountain pen nib units, and I joined in.

It took me a couple of attempts to make this work, but I finally managed to make a nib section that holds the nib unit in one end and a cartridge-converter in the other, and hasn't let go of either in a couple of days testing.

I decided to try making the clip-ring hidden, but experimenting on some scrap acrylic pieces taught me that none of my existing tools were fine enough to cut the groove that the ring seats in. I have a couple of old files that I'd repurposed as scrapers, I ground down the tang of one of these into a very narrow square-end scraper -- it did the job nicely.

Cap-barrel threads are 12mm x 0.75, barrel-section threads 9mm x 0.75. The cap posts (but I forgot to take a photo of it posted). Thanks for looking.

 

[clpead]

A while back, a penmaker on the IAP and Fountain Pen Network organized a group-buy of taps for the Esterbrook renew-point fountain pen nib units, and I joined in.

It took me a couple of attempts to make this work, but I finally managed to make a nib section that holds the nib unit in one end and a cartridge-converter in the other, and hasn't let go of either in a couple of days testing.

I decided to try making the clip-ring hidden, but experimenting on some scrap acrylic pieces taught me that none of my existing tools were fine enough to cut the groove that the ring seats in. I have a couple of old files that I'd repurposed as scrapers, I ground down the tang of one of these into a very narrow square-end scraper -- it did the job nicely.

Cap-barrel threads are 12mm x 0.75, barrel-section threads 9mm x 0.75. The cap posts (but I forgot to take a photo of it posted). Thanks for looking.

That is sweet, great job

 

[duncsuss]

thanks Aaron :smile:

 

[Dave Paine]

I am impressed that you are able to turn such fine threads. I expect some materials will work better than others.

No surprise that it took "a couple" of attempts.

Nice looking pen. Well done. :thumbsup:

 

[duncsuss]

I am impressed that you are able to turn such fine threads. I expect some materials will work better than others.

No surprise that it took "a couple" of attempts.

Nice looking pen. Well done. :thumbsup:

Thanks :smile:

I used taps and dies to cut the threads, lubed with a spritz of aerosol cooking oil. Acrylic acetate takes the threads well, as does ebonite.

I've tried Corian ... it's a challenge -- the threads cut, but it didn't tolerate such thin wall thicknesses, simply cracked up as I was tapping the inside threads. I gave up trying to make the nib section from that, but I'm making a barrel and cap from it and it won't beat me. :laughing: