"Flame-Blued Hands" Project (retrofit for Laco Pilot Baumuster B)

[Janne]

The Wempe hands look very correct, widest part where it should be etc. I wonder who makes them?
the Stowa FE minute hand is of the wrong type, widest part close to the center.

[Paulo]

Stowa FO is a Baumaster A, not B.

[Janne]

Yes, what I meant is that they are of the wrong type for "our" watch!

[thodgins]

I was just using the Stowa to illustrate the lume on the hand and where the lume should touch.

[Janne]

And, with your pic, you have also reminded and shown us how beautiful the blued hand will be!
It is just too easy to settle with the black hands when the watch arrives.....

[Paulo]

I understood your point Tod, but it really depends of the "distance" of the lume end and the hand end, which in the case of narrow ended hands is a big distance (which shows on your great shot) and in the case of broad ended hands, like the Baumuster B, is much smaller.

If the lume of a Baumuster B hand just touches the 5 minute marks the hand will look too small for the dial.

[thodgins]

I think Wempe did a great job with its hands and I would use that as a guide for the hands on this project.

I forgot to put that the pic came from Stowa. My bad. It isn't my great shot, I totally forgot to put the source.

[frank_be]

Please have a closer look at the hands;

I will forward these CAD-files to Laco in order to get the blued hands process on rails again.

Please feel free to comment; Changes can still be made.



Greetings,
Frank

[Janne]

It looks like the widest part of the Minute Hand is too close to the tip!
according to my calculations, it should be 35% from the tip. Calculating between the tip and the center hole.

[frank_be]

Hello Janne,

I've changed some small things and indeed it looks better, maybe even perfect now.

I've changed the tip angle from 25° to 22° and your calculated 35% was IMO just a bit too much. I believe it is now +- 31%. In fact the bending point is at 5.60mm from the tip (with a hand length to the center of 18.00mm)



What do you think of it?

Greetings,
Frank