Friday, February 23, 2024

Another Benchtest!

 

Week 8

This week we had another bench test! Nicholas from England!


Here he is learning how to put in the mainspring in the barrel by hand.

 

STUDENT HIGHLIGHTS

Workshop B

Students:
    Amer, Dunham, Faris, Ivan, Louis, Varun

    This week Ivan continued planning out his school watch with Fusion 360.

     Ivan also continued his restoration work on his pocket watch.

He beveled and polished the edges of the ratchet wheel and used tetrabore to matt finish the top of the screw.


Here Ivan refinished the entire surface of the barrel bridge. He used paper to flatten the surface before he frosted the surface.



GUEST STARRING

Workshop A

Students:
    Art, Daniel, David, Harold, Miguel, Nine

    This week Daniel, David and Miguel learned how to oil the gear train and apply epilame.

Coming in at a 45º angle to touch the pivot to allow oil in.

Using a dropper to apply epilame only to the teeth of the escape wheel.

2 Incabloc jewels. The one above has epilame and the bottom does not. You can see that the epilame helps the oil to form more consistently for cleaner work.

     This week Daniel made a prototype of his escape wheel and asked Ivan to help him create his gear train in Fusion 360.

Daniel made some mistakes centering the spokes and wants to reshape them to be thinner.

    This week Daniel also prepared to take his escapement exam next week

    This week David and Miguel took their escapement exams and passed!

    This week David also serviced his Omega 601.

    This week Miguel made and finished his pallet fork holder just in time for his escapement exam.




    The base is made out of brass that has been straight grained and black rhodium plated before the mandrin was cut down and friction fit into the base. It was designed to be adjustable when under the microscope to check the cleanliness of the pallet fork.

 


COMING UP NEXT...

We have another bench test next week! Tune in next week to find out where they're from.

 

 

 

Thank you for reading! 

Hope to see you again next week! 

Friday, February 16, 2024

Bench Test!

 

Week 7

    This week we had a new bench tester! Bernd from Germany! Here he is working on a 6498 and a pocket watch movement.    
 


STUDENT HIGHLIGHTS

Workshop A

Students:
    Art, Daniel, David, Harold, Miguel, Nine 

    This week, Daniel, David and Miguel learned how to remove the hairspring collet from the balance staff and flatten a balance wheel using the lyre and the horia tool.

Here is the laser welded collet of Nivarox for an ETA 2892 balance wheel.

Using hand levers, you must gently pry off the collet to separate it from the balance staff.

Then you place the balance in a Lyre tool to check the flatness of the balance wheel.

Finally after spotting the high or low spots, you place it into a horia tool and gently press with your finger.

Here is the balance wheel before flattening.

Here is the balance wheel after flattening, the wobble has been almost completely eliminated.

    This week Art and Nine have also finished their filing exams! They are now focusing on making some of the required tools and exercise pieces such as the balance bridge holder and the press fit plate.

    Here is art turning the spike of the balance bridge holder on the lathe.
 

    David also took several practice exams for escapements this week.

    This week Harold has dealt with ETA7750, 6498 and 2892, learned the disassembly and assembly of the balance complete, the different types of configurations of the hairspring, adjustment of the stud and regulator, and made good progress on the set of theory questions.

 


 

Thank you for reading!

Hope to see you again next week! 

Friday, February 9, 2024

Parts and Tool making!

 
Week 6


STUDENT HIGHLIGHTS

Workshop B

Students:
Amer, Dunham, Faris, Ivan, Louis, Varun 

    This week Ivan made a balance staff for his pocket watch.


    This week Dunny made a pinion and wheel for his school watch.


    This week Louis made an hour trip for a repeater pocket watch.






GUEST STARRING

Workshop A

Students:
Art, Daniel, David, Harold, Miguel, Nine 

    This week, Miguel continued adjusting the escapements for his 7 movements and he also made a custom anvil and pusher for his Horia to remove the guard pin of his P7001 pallet fork.

Anvil (Left), Pusher (Right)
The main bodies are turned from brass and the contact points are made of blue steel that have been pressfit.

The tips of the steel portion have been polished to avoid scratching the pallet fork when in use. The body of the brass anvil has been knurled for better grip and a groove was cut into the pusher to make it easier to remove.

    This week Daniel has shaped the spokes for his center wheel on the milling table.


 


THANK YOU FOR READING!
 
HOPE TO SEE YOU AGAIN NEXT WEEK!

Friday, February 2, 2024

New Lessons!

 

Week 5


STUDENT HIGHLIGHTS

Workshop A

Students:
Art, Daniel, David, Harold, Miguel, Nine

    This week Art and Nine learned how to turn on the lathe.

Art is turning the pin for the balance bridge holder.
 

    Art has also taken and passed his first exam!

    This week Daniel, David and Miguel learned about the different types of escapements.

    Daniel has started with pallet fork adjustment.

Daniel's set up for inspecting and cleaning his pallet fork. He made a custom tool by shortening a mandrin to hold the pallet fork under the microscope.
 
 Daniel also made an hour and minute wheel for his school watch in beryllium copper instead of traditionally used brass.

Above is the hour wheel and below is the minute wheel.



GUEST STARRING

Workshop B

Students:
Amer, Dunham, Faris, Ivan, Louis, Varun 

    This week Dunham finished several sizes of his pivot gauges. He finished the 0.17 and 0.20 pivot gauges.

    Dunny has also started making wheel blanks for his school watch.

Here is the wheel made in Berylium Copper

 
He has also started cutting out the spokes for his wheels on the jig borer.




Thank you for reading!


Hope to see you again next week! 

Friday, January 26, 2024

Surprise Bazaar and New Lesson!

Week 4 
 
This week we had a nice surprise! Our friend Sabri stopped by for a surprise tool bazaar!
 
He had a nice selection of tools from tweezers, to escape meters, to mandrins.
 
 

STUDENT HIGHLIGHTS

Workshop B

Students:
Amer, Dunham, Faris, Ivan, Louis, Varun

    This week Ivan, Louis and Varun learned how to make an hour wheel on the lathe. 

Here is Ivan using the gear cutter to make the teeth of the hour wheel.

Louis is parting off the finished hour wheel from the bar.
      

    This week Louis also passed his hour wheel exam!  

    This week Louis also repaired the holder attachment for the agathon.

The thread for the handle was stripped so he pressed in a brass bushing and then pressed in the threaded bar after turning down one end to fit the bushing.

Due to the size and tight fit of the bushing and the bar, we had to use our large press to push it in!
 

    This week Dunham made a graver holder and started making his pivot gauges.


GUEST STARRING

Workshop A

Students:
Art, Daniel, David, Harold, Miguel, Nine

    This week Miguel finished restoring an old wheel flattening tool.

The tool was tarnished and was missing 2 of the reverse cones on one side as they had been cut off.


Miguel round polished the head of the main screw by hand.

Next he turned down a steel washer from 16mm to 14mm and from 1.5 mm thick to 0.4 mm thick. This goes between the two halves of the tool to reduce friction.

He used a small endmill and drill to re-make the holes for the steel reverse cones that hold the wheels.

Here is a close up of the new reverse cones made out of blue steel and friction fit into the new holes.
 
After polishing all of the brass parts, some of the stains and tarnished spots still remained.


Here is the finished tool. It now has 2 new steel inserts for the reverse cones to hold large wheels, a new washer, the whole tool was polished and plated, half in white rhodium, which was affected by some spotting from the remaining tarnish, and half in black rhodium. Finally the central screw was tempered to purple and 2 holes were drilled and tapped to prepare for future attachments.


Thank you for reading!
 
Hope to see you again next week!

Friday, January 19, 2024

Snail's place!

 

Week 3 

 

STUDENT HIGHLIGHTS

Workshop A

Students:
Art, Daniel, David, Harold, Miguel, Nine

    This week, Daniel, David and Miguel started learning about escapements. They learned about the parts of the pallet fork and balance and the checks and safeties for each part. 

    They also learned how to do snailing on wheels.

Here is Daniel's 6498. He double snailed the wheels and made a polished groove to separate them.

Here is David's 6498. He also double snailed the ratchet wheel.
 
 
    This week David also made a square hole punch to make his graver holder.


 This week Miguel finished fixing the division and end shakes for his 7 movements. He also started repairing a damaged Heuer stopwatch.

Sizing and fitting a new crystal, as the orignal was missing.

The original winding stem. The thread is broken and the tip of the square is damaged. There is a burr formed which prevents it from being removed from the winding pinion.


 


GUEST STARRING

Workshop B

Students:
Amer, Dunham, Faris, Ivan, Louis, Varun 

    This week Amer finished servicing a Longines wristwatch with timing down to delta 7!

    This week Dunham finished his winding stems and started preparing to start making pivot gauges.

    This week Ivan continued working on a restoration project, making a barrel bridge for an old pocket watch.

Spotting the center and opening up the holes in the lathe.

Here is the bridge after opening up the holes.

    This week Louis also did the restoration of an old pocket watch. He made a new in-setting for a rubbed in jewel and a new balance staff.

The jewel sitting in side the brass rod for the in setting.
Using a custom graver to cut the material to rub in the jewel.

The finished and parted off in-setting.
 
The finished balance staff. Its smaller than a dime!

Here is a close up of the finished balance staff.




Thank you for reading! 

Hope to see you again next week!