FountainPen.it Forum

By "point of maximum expansion" do you mean the widest part of the nib? Per "punto di massima espansione" intendi la parte più larga del pennino? Hi LordCactus, I mean the maximum horizontal expansion of the hole inside the nib. -------- Ciao LordCactus, intendo la massima espan...

Very interesting- the curvature of the nib is not the only thing that affects flex, how the curvature varies along the slit length must be important too. Molto interessante: la curvatura del pennino non è l'unica cosa che influenza la flessibilità, anche il modo in cui la curvatura varia lungo la lu...

Hai qualche foto di questa torsione che avviene nel pennino? Ecco una foto di una vecchia versione del pennino che si flette fino a 6 mm+, senza alcuna torsione evidente Hi LordCactus, The twisting I'm talking about is difficult to photograph. It's much easier to film. I've posted the video on Redd...

As for cross cuts it is the same argument. We begin with a regular nib 1), extend the tines so we have more leverage and max flex (if the metal can safely bend to angle θ, then the max flex will be xsin(θ) where x is the length of the tines, so the longer the tines the more flex we get)... ------ P...

Yes, I created that modification! Sì, ho creato quella modifica! nice to meet you here. I did not expect to find you in an italian forum. Your idea seems very awesome, I am intrigued. Do you think it would be a good idea to replace the overfeed with a 3D printed housing instead? What I mean, is som...

pbon ha scritto: ↑venerdì 17 maggio 2024, 23:43 State provando a fare la modifica "arrowflex" che ho visto su youtube? pare interessante, apre certe nuove possibilità artistiche dato che è capace di flettere a modo da sembrare un pennarello largo.

Yes, I created that modification!
Sì, ho creato quella modifica!

To explain the infinite cuts idea a bit more-: if we take a very extreme example of a notch as a cut with almost 0mm width, we end up with a point on the nib with a lot of stress concentration 2) To ease this we can add more of these cuts to spread this stress concentration out. 3) To make the chang...

If you want good ink flow but still do not want to add an overfeed... Hi LordCactus, I tried switching to a metal overfeed that's a bit different from yours. What you showed in the photos seems like an ingenious refinement. Using part of the nib to secure the overfeed and press it onto the feeder a...

Questo è interessante! Cosa usi per fare un taglio così fine? Io non ho trovato nulla per stare sotto i 0,5-0,6mm That’s interesting! What do you use to make such a fine cut? I can’t go down 0.5-0.6mm Hi! I use a 0.4mm diamond grinding burr on the dremel. I will add the Italian translations from no...

Ma secondo te, nell'esempio di quest'ultimo pennino fa differenza avere il taglio largo oppure lo reputi ininfluente? Penso che consenta di avere il flusso necessario per alimentare a dovere in fase di flessione. In effetti la goccia era comunque la mia prima scelta proprio per questo. Puoi spiegar...

This is some of the potential line variatiob you can achieve by modifying steel nibs, I will share more information about how this mod works and the steps needed to apply it later this week

Normally I anchor it by bending the tip of the arrow cutout into a hook, and placing it underneath the cutout. I am still working on a flexible stainless overfeed that will go through the nib (rather than sit on top of the nib). As in, the overfeed will start on the underside of the nib and finish o...

Here we go! Mesh works well but I think there is a way to design a 0.2mm 304 stainless sheet overfeed that will perform similarly well whilst being more durable

Ho provato a metterlo all'opera con un velo di carta (tipo fazzoletto di carta, che si impregna bene): Volendo potresti provare con un foglio in acciaio inox a trama (e provare differenti trame), non si sbriciola ed è lavabile. Mesh200sf - 1.jpeg Mesh200sf - 2.jpeg Mesh200sf - 3.jpeg Questa in part...

Hello! I will make a post later today outlining the method used to achieve huge flex and also how to maintain good ink flow.



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