Friday, October 22, 2021

FINISHING TECHNIQUES COURSE!

  WEEK 133

Michael
Origin : Malaysia 
Watchmaking class: Technician & Fullskill 
Current mood: It was a very busy week! Did some bevelling and finishing on steel. It was hard. First time doing it and it was a good start, more room for improvements. I also did some tools for black polishing and Geneva stripes. Looking forward to next week! Have a good weekend everyone! 


Renato & David
Origin: Zug, Zürich, Switzerland
Watchmaking class: Fullskill
Current mood: Continued practicing various finishing techniques this week. Countersink polishing, matt finish on steel and brass, black polishing, corner filing. Also did Geneva stripes. Setup is everything there and then it's relatively easy to do. It was great to have another week to experiment and get more routine after the finishing week. It's all about the details and I figured out plenty of them this week :) Renato

This week I worked on skeletonizing a 6497 movement. I learned a lot of finishing, using the hand motor. I also learned what areas to avoid when skeletonizing in order to keep the integrity of a bridge or a mainplate. I also tried frosting finishing. David


Francesco, Åsmund & Robert
Origin: Italy, Norway, USA
Watchmaking class: Fullskill 
Current mood: This was a full week of making some tooling, and spending time on putting bevels on small parts. And...most parts in watches happen to meet that category of "Small parts".
The beveling, for a beginner, can be very exasperating, just a small movement of the file, at a wrong angle, and you have to make corrections in that section of beveling, and perhaps in the adjacent beveling.
This is one of the skills where speed is not on your side, mistakes are easy to come by, and hard to fix. 
The tool making was a way to step away from beveling for a breather and make tools we will use, adding a little bit of pattern for grip.
Robert

Hi everyone, this week I kept on with finishing.
Yesterday I’ve just completed the yoke from the ETA 6498. I decided to change its shape, I filed until I got a a sharp external corner. Then I finished the flanks, the bevels and at the end I decided to do the matt surface on the flat surface. I started with the 800 paste but the grains where too small so I passed to the 600, it’s a bit coarser but in my opinion it turned out better.
Now I’m practicing with a bridge doing counter-sinks.
I’ve also ended with the aquamarine stones, I ground them until I got a round shape and I put it in the screw head of the scissor tool for the balance wheels.
See you next week, 
Francesco






STEP 1:  FINISHING TECHNIQUES COURSE! (KALLE, EDWIN, EWOUD)
















STEP 2:  FINISHING WEEKII! (FULLSKILL)














STEP 3:  BOOKS! (KHWCC LIBRARY)






HENRIK's WORDS:

 

 

It got even busier this week! We had Kalle, Ewoud, and Edwin from Chronoglide in Holland taking the Finishing Techniques class this week, as its only one week we only have time to try out techniques and see how they work in principle, but we covered a lot; bevelling, graining flanks with two different techniques, black polishing, making and polishing countersinks, Geneva stripes, spotting, two different techniques of straight graining, and even some more techniques. The Fullskill class continued in the other workshop to practice what they learned last week as well as continuing with their tool manufacturing, indeed very enjoyable and fun week!  have a great weekend everyone!






Friday, October 15, 2021

FINISHING!

 WEEK 132

Michael
Origin : Malaysia 
Watchmaking class: Technician & Fullskill 
Current mood: Finally finished my final exams last week! This is the finishing week and lots of fun stuff to do! First time doing flanks and bevels. Very addictive! Just don’t know when to stop. We were introduced to the various finishing including Geneva stripes, frosting, Matt finishing and etc. Looking forward to next week to meet new people attending the finishing class for public. Have a great weekend everyone! Cheers! 


Renato & David
Origin: Zug, Zürich, Switzerland
Watchmaking class: Fullskill
Current mood: This week we learned different finishing techniques. We learned how to do Geneva stripes on the milling machine, frosting, straight graining. We tried bevelling and refinishing the flanks of different parts. We learned how to finish countersinks. David

This week was finishing week. We started with black polishing screws. Interesting to see all the finishing tools that can be used on various parts of the movement. Abrasive papers, polishing paste, various materials/shapes they can be applied on... lots of possibilities we explored. Sablage, frosting, Geneva stripes, straight graining... check. Week ended with working on a yoke on which we also practiced bevelling and polishing the bevels by hand and with a motor. Not done yet, but it was great to try several techniques to figure what works best for me. Renato


Francesco, Åsmund & Robert
Origin: Italy, Norway, USA
Watchmaking class: Fullskill 
Current mood: 

Hello,

This week was very exciting. We have learned many different finishing techniques, black polishing, bevelling, make counter sinks, frosting, matt finish on steel and Geneva stripes. and even more to come next week as well. 

Spent most of the week experiencing with black polishing screws, bevelling and polishing a yoke. Preparation are key to perfection 

Have a great weekend.


Hi everybody, 
this week was really intense because of the finishing course. We had a lot of lessons: we started with the black polishing technique and I  polished screws and a crown wheel. Then Henrik showed us how to finish flanks, counter-sinks and some different techniques to make bevels. At the end of the week we learned to make steel matt looking, Geneva stripes at the milling machine and frosting with two powders. 
I have just started finishing a yoke lever from the ETA 6498. I have finished the flanks and I’m going to begin with hand bevelling. 
Have a nice weekend,
Francesco.

This week all prior projects were set aside while we received instruction on applying various methods of finishing (decoration) to watch movements.
Bevelling edges of parts, machining Geneva stripes, and other methods of finishing large, flat surfaces were the main focus.
Some time was also spent on tool-making to hold some of the smaller parts while they had the finishing work done to them.
Not much else to report on, as this week was heavy on the "Instruction & Demonstration" part of this watchmaking pursuit.
Robert



STEP 1:  FINISHING WEEK! (ALL)





Everyone busy with practicing various finishing techniques!



STEP 2:  WATCHES! (RENATO)


Renato show us one of his cool wristwatches! Not sure we can really trust all the values due to the quartz's crystal running at warp speed, 2.4MHz!



STEP 3:  BOOKS! (KHWCC LIBRARY)

This is a very enjoyable read! especially since it describes a lot of the life of the company and the people behind the chronometers as well as having some repair tips concerning marine chronometers.





HENRIK's WORDS:

 

As I suspected this week did get extremely busy! I introduced everyone to common classical finishing techniques such as Geneva stripes, making steel parts matt and black polished, Frosting on brass bridges with polished and bevelled countersinks etc. Since it was only a short introduction they will continue practicing next week and hopefully soon we have some nice finished parts to show you! This part in the course is always very exciting for everyone! And it continues next week with another 3 watchmakers coming for a similar finishing week as well. Very nice week!  have a great weekend everyone!

Friday, October 8, 2021

SERENITY!

 WEEK 131

Michael
Origin : Malaysia 
Watchmaking class: Technician & Fullskill 
Current mood: n/a


Renato & David
Origin: Zug, Zürich, Switzerland
Watchmaking class: Fullskill
Current mood: Designed the setting lever for one of my pocket watch movements on the profile projector. Will start making the holes on the jig borer soon and mill out a section for the spring action. Afterwards we'll have a pantograph intro. The shape will be done on the pantograph. Besides that, I had two winding stem practice exams. Very intense, these. Making a winding stem in 8h from A to Z requires quite some force and strategic planning. Interesting to see what can go wrong as well, so the real exam might be planned better. I never turned a piece so fast :) Renato

This week I worked on creating a new winding stem. Unfortunately after heat treatment I broke it. However  I got much further then last week. The reason being is that last week I did not follow the exact operarations, which this week I did. Better luck for me next week, when I will make a new one yet again. David


Francesco, Åsmund & Robert
Origin: Italy, Norway, USA
Watchmaking class: Fullskill 
Current mood: Hello everybody, during this week I worked on my tools, especially on the balance wheel holder. I’ve made my own design, I took inspiration from an old compass, it looks like a scissor with a curved guide that locks the two legs in position. 
First of all I glued together two brass plates and I milled the round shape in the lathe with the help of the dividing head. Then I drilled five holes for the three feet and the curved guide.
In the middle of the week I started focusing on the curved guide. I used the rotating attachment in the Aciera F1 and I milled a section of circle. After that I started with the screws, Henrik taught me how to cut slots with the milling attachment in the Schaublin 70. Then for the other 4 screws I’ve made a special design but I’ve not finished them yet.
This project requires a lot of time, more than expected but I think that at the end the result will be nice. 
See you next week, 
Francesco.

Hello, 

Nothing much to report this week. Last weekend I went to Robella de travers and tried the downhill slope. On the last run I fell and injured my thumb, so this week has been going a bit slow. I’ve been spending much time filing the balance wheel holder and sharpening my files so it will be good for internal corners. 

Have a good weekend

Spent some time this week re-writing the milling directions for a flat brass tool. It's like writing G-code for machining, needing to compensate for the width a cutter makes, using reference points to act as "zero's", just a more in-depth, leave-less-to-interpretation method than last week. This re-write is going into a little pocket notebook, only a few steps/operations per page, when that page is finished, I'll turn to the next page...easier to keep track of where I am in the operation, less stress, less chance of doing a wrong turn of a handle. Time consuming to write up.
If it wasn't for the overlapping stripes...on the bottom...inside a recess...it would go a little quicker.
Had our first actual frost of fall this week, I'm trying to perpetuate the "Switzerland is cold" mantra. Please ignore the tropical (banana?) plants that stand sentinel at our train station at a little under 1,000 meters/3200 feet elevation.
Robert



STEP 1:  MACHINING CREATIVITY! (FRANCESCO)






Francesco did a lot of creative work this week by using the manual milling machine, lathe, and milling machine in lathe! to create the individual parts of his balance wheel support compass style!




STEP 2:  BOOKS! (KHWCC LIBRARY)

This is a great book if studying escapements!



STEP 3:  RESTORATION! (RENATO)
Old broken setting lever!
The spring section of the setting lever!
The breaking point!
Using the old lever as a template to design a new one as we believed it is the original one.
Stock material ready to be drilled, milled and finished into a new setting lever!





HENRIK's WORDS:

 


It was a very nice and calm week! Of course, thats how it usually is before it becomes extremely intensive which is most likely next week when the students have their finishing week and after that another intense one week finishing class! Michael continued and finished his final exam this Friday, hopefully it will all go well!  Renato decided to use the week mostly for trial winding stem exams and David continued practicing making complete winding stems, Francesco almost finished his compass style balance wheel support, which seemed to be rather a creative micromachining experience! Asmund continued with a lot of hand filing of his tools, for me it was a very serene week! Have a great weekend everyone!