Barrel And Cap For A Waterman 48 Safety?

[Synnove]

http://i.imgur.com/2TzoHCK.jpg

 

I just purchased the internals and feed for a Waterman 48S safety pen from the lovely Robert and Rita at Five Star Pens.

 

I'm wondering what pen makers would be willing to take a commission to fabricate an ebonite barrel and cap (no clip) for this pen? I've nibs selected, ebonite chosen, and the design is rather straight forward (only oddity is the need for a pair of straight channels along a portion of the barrel for the cross-link pin to move within).

[Jamesbeat]

The majority of the pen would be pretty straightforward to make, but those slots would be tricky.

Broaching would perhaps be the least difficult way of doing it.

Probably need to make a specific tool to do it though.

[Inspector]

With a metal lathe you would do the same as when you need to cut a keyway. A cutter is run in the hole to the depth you want, then retracted. The cross slide moved to cut a little deeper and the operation is repeated until you have the slot you want. For the opposite slot you would rotate 180 degrees and repeat the process. For lots of them you would use the broaching method already suggested but for a single or three pens it wouldn't take all that long to cut. I;m not in a position to do it but someday I'll take a crack at one.

 

Pete

[Jamesbeat]

With a metal lathe you would do the same as when you need to cut a keyway. A cutter is run in the hole to the depth you want, then retracted. The cross slide moved to cut a little deeper and the operation is repeated until you have the slot you want. For the opposite slot you would rotate 180 degrees and repeat the process. For lots of them you would use the broaching method already suggested but for a single or three pens it wouldn't take all that long to cut. I;m not in a position to do it but someday I'll take a crack at one.

 

Pete

The process you described is what I meant - I thought that was called broaching, but I guess I got my terms mixed up.

 

I imagine it would probably be pretty quick and easy to do this with ebonite because it's pretty soft stuff.

[Synnove]

I wasn't aware of these techniques (unsurprising as I don't have a lathe). Interesting to see how it can be done as it's been eating at my brain as to how they did it at Waterman.

 

You're correct that it'd be a quick process; the slots are quite shallow. So shallow actually that, where they run through the threading on the rear of the barrel, there is still threading left in the valley of the slot.

[Inspector]

I thought you meant this kind of broach.

 

http://www.shars.com/no-00-precision-keyway-broach-set

 

But we were both thinking of these, although just ground to suit from HSS cutter stock.

 

https://www.iscar.com/eCatalog/Products.aspx?mapp=TG&app=268

 

Pete

[Synnove]

Thankfully I was able to procure a #8 sized barrel and cap for these parts. Unfortunately, the cap has some internal damage that doesn't allow it to seal the barrel.

 

Would any one be willing to take a commission for creating just a cap?

[najera]

I have done a long time ago

Edited April 11, 2017 by najera