How does a person make a shocking good Urwerk UR-202 to pay tribute
Meet with young engineering student Karel from San Ramon, California. Due to his love of timepieces and the more unusual timepieces of the 21st century, he quickly liked Urwerk and their unique way of showing time. In fact, he liked them very much. He started to take his studies as an engineering student and designed and produced his own tribute to his favorite high-end watch brand - today, he shares his experiences and achievements with us. .....
It all started about 2 years ago, when I first saw some of Urwerk's timepieces. Their watches are different from anything I have ever seen: for me, they are the modern pioneers of watchmaking. One thing that fascinates me with these works is that they have incredible advances in horology, while seamlessly meshing these institutions in a very aesthetically pleasing way. It's not uncommon to see a watch full of incredible engineering, and the rest of the design seems to be an afterthought. The reason why watchmaking is so unique is the ability to combine engineering and art. In my opinion, Urwerk has performed very well.
Tabulation is one of the last engineering forms with a lot of freedom, because there are almost no design constraints - of course, except for size limitations. In this sense, it is still an art; we encourage people to propose new functions, complications and escapement, not necessarily trying to go beyond quartz and atomic clocks as scientific instruments, but to show that watchmaking is far more than capable Set aside time.
I found the Urwerk UR-202 to be incredible. However, they paid a heavy price and still be a college student, which may not be suitable for my budget. Still, contrary to the process of having this great timepiece on one day, it motivated me to try to get as close as possible to it. As a mechanical engineer, I don't think there is a better way to learn from these great watchmakers, instead of using 3D CAD software to rebuild the watch on my computer. Now, I know this is not an easy task, but my enthusiasm for watchmaking and engineering overcame any second thought, and I immediately began to study new love that will soon become a watch world.review replica zenith pilot watches
Under the hat of Ukrainian UR-202 for many years
Finding the right size is one of the hardest parts of the project because it's simple and there is nothing available (obvious reason). I first edited hundreds of photos of the Urwerk UR-202 from various angles and obtained the overall size of the watch (case height, width and length). With this information, I was able to develop a sketch of an appropriately sized shell by using the overall dimensions to be scaled and create a conversion ratio for the remaining angles/measurements. Once the dimensions of the enclosure have been determined, I will move to the back of the case, the crown, the rotor assembly and any other components that can be seen from the outside.
Finding the right size is one of the hardest parts of the project because it's simple and there is nothing available (obvious reason). I first edited hundreds of photos of the Urwerk UR-202 from various angles and obtained the overall size of the watch (case height, width and length). With this information, I was able to develop a sketch of an appropriately sized shell by using the overall dimensions to be scaled and create a conversion ratio for the remaining angles/measurements. Once the dimensions of the enclosure have been determined, I will move to the back of the case, the crown, the rotor assembly and any other components that can be seen from the outside.
Once all the external components have been properly sized, I started to convert these sketches into Solidworks CAD software. However, the internal and mechanical functions of the part are more difficult to recreate in software. That being said, every struggle has the opportunity to learn something new. Since there is no picture or reference movement, I should learn and develop methods that can be implemented without affecting the watch.
For me, the bottom plate is one of the most complicated components to reproduce in this watch. With many features and very tight tolerances, even the smallest defects make the movement completely useless. After watching the Urwerk UR-202 promotional video dozens of times and analyzing it frame by frame, I was able to better understand how this complex barrel assembly works. As one of the barrels turns to the crown, it is welcomed by a hook. The hook grabs a small opening in the barrel and rotates it 90 degrees.luxury replica richard mille rm 038 watches
Once the barrel is flattened again on the surface, it will repeat the process twice more for a total of 270 degrees, thus rotating to the new appropriate hour. This doesn't seem complicated until you understand the dimensions of these components and the precision of each measurement to get a smooth and consistent movement. The tolerances of these watches must be perfect; any slight deviation will significantly increase the friction, not only harmful to the power reserve, but also harmful to the overall life of the movement.
Another difficulty with the bottom plate is the cam path (highlighted in green), which allows the minute hand to extend or retract depending on the position of the minute hand dial. Below each wing of the rotor dial is a small guide that is mounted on the cam path and connected to the telescopic minute hand. As the rotor rotates, the cam path will adjust the length of the hand accordingly. This complex curvature is computational, which gives me a greater reason to pay attention in my calculus course. The curvature of the path takes some time to perfect, but after adjusting a few sizes, it works very well in the motion analysis of Solidworks.
However, just because something works well in CAD software doesn't necessarily mean it will work in real life. It’s been a year since the sketch of this project, and I finally designed and assembled all the components in Solidworks (as far as I know). When I play the movement on my computer, my admiration for this watch and the watchmaker behind it will only grow. I spent a lot of time and research on designing on a computer, and I think it would be a shame if you don't take further steps and process all the components yourself. I know this is not an easy task, and telling me that the more people it can't do, or the more difficult it is to process, it will only make me build it more firmly.
I started looking around for the processing of these parts, and soon I came across a tough reality: making such small and complex parts can be very expensive. This is of course frustrating, but I didn't give up because I know that I will find my solution over time. This is the world I stumbled upon in 3D printing. I used to use 3D printing to handle relatively simple components; however, making complex assemblies is another task. I started to print out some of the larger parts, the outer casing, the bottom plate, the rotor dial, and so on. However, the print resolution is far from meeting my requirements. You can see the print layer very easily, and you've lost all the finer details in the process. This is common in most standard 3D printers, so I continue to look for alternatives.Hublot MP Limited Editions 902.NX.1179.RX watch replica
I imagine that it takes several iterations to prototype before everything works, so due to my budget constraints, it is impossible to process all the components in a given material in each case. As I continued my research in the field of 3D printing, I stumbled upon a relatively new technology called the Multijet modeling process or MJM. This method will produce a sheet material using multiple print nozzles and then polymerize each layer using a UV lamp. This UV-curable acrylic resin is not only extremely durable, but can be printed at a resolution of 0.01 mm, and for most standard 3D printers, it has a printing accuracy of 0.1 mm. This means that my current print resolution is about one tenth of the paper thickness. This significantly improved the accuracy and precision of my components; so I finally got back on track and recreated the Urwerk UR-202 to commemorate the great watchmakers and designers behind it.
After the correct assembly and function of nearly 7 fine-tuned prototypes, I am ready to start processing the final part. First, it is the turn of the outer casing and crown. These components took quite a while to get the right finishing, even though they are really beautiful. Every detail of the micro-engraving from the screw to the inside of the case is taken into account, because I want to be as close as possible to everything.
Next is the bottom plate. This component has about 8 iterations, each representing a small improvement and involves a lot of fine-tuning. The base plate is primarily responsible for the overall operation of the complex functions of the rotating satellite, so it is important to ensure that everything is working properly before processing the final part. Once I was satisfied with the bottom plate, I processed it with aluminum 6061. The coating is then applied to the designated area and the central portion of the plate is anodized. Finally, it is mounted on a Miyota base movement. Run and display time like the original - although I hope to upgrade to the ETA base in the future.
After the bottom plate was completed, I began to study the crystal covering the surface of the Urwerk UR-202. This is by far the single component that is the hardest to design. Urwerk's case design is unique, so the unique crystal must also be designed just right. This piece is not just a universal circle, but a series of complex splines and cuts that are not easy to design - not to mention the creation. When I created this piece in Solidworks, I realized how tight it was with the gap between the rotating buckets below it. The game between the two is about 0.3 mm (0.0118 inches), so it's absolutely essential to make sure they are perfectly aligned.wholesale replica watches for sale
After nearly a month of work to redesign and fine-tune this piece, I finally have time to process it. Like most companies, Urwerk uses sapphire crystals with anti-reflective coatings, so I contacted several companies to get a quote for the work. Now remember that if it's a simple circle cut from a sapphire crystal, the price may be controllable. However, in this case, when I received the offer, my chin fell to the floor. Due to the complex curvature of this piece, they need to engrave a whole piece of sapphire crystal, which is already a very difficult material to process.
I continued to look for alternatives, and once again, I found myself back to the wonderful world of 3D printing. A company I used to use has started 3D printing a new material called "Watershed XC." This is an engineering grade ABS photopolymer that is optically transparent and produces very strong and relatively scratch resistant parts. Another feature of this material is that it has a low refractive index; this means that images perceived by the glass are not magnified or tilted. This piece comes out of the machine and has a very rough surface that requires nearly 10 hours of hand polishing to achieve the desired optical clarity.
Now that the front glass piece has been completed, it is time to complete the rotor assembly below it. Rotor assembly (note that in this case, the term "rotor" does not refer to the automatic movement, but the three-arm satellite system used to indicate the Urwerk UR-202) is an incredible piece of work at night As beautiful as daytime. The Urwerk UR-202's super illuminator is applied to the hour markers on each of the four sides of the barrel, so when properly lit, the brightness is radiated in all directions, which is a very easy sight to see.
That being said, I am not an expert in the application of lume, especially on the small parts of the Urwerk UR-202. Once the moon phase, the minute dial and all the barrels were properly engraved, they were sent to my good friend Bolun Du, who did some wonderful lighting work. Together we work hard to find the best match for lume on the Urwerk UR-202, whether it is during the day or at night.replica Patek Philippe Twenty 4 watches price
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