Tourbillon-Tischuhr Sternengucker

Finally I've got this excellent and beautiful model to work. After carefully building the clock it used to work always for some minutes then the escape fork hit the escape wheel from above, causing the whole thing to get stuck. I don't know if this was caused by my build, but I knew, I would have to fix it.

Some research taught me that the impulse pin would not provide enough energy to the escape fork, which then was too slow compared to the movement of the escape wheel.

I had to rework the inner and outer mount of the balance spring. On the inside the spring was mounted in an incorrect angle, causing the spring to touch the inner mount, so I bent it to a proper position. On the outside the spring was several centimetres too long, so I shortened it just by letting it stick out on the back side of the mount. To avoid interference, I had to place the inner mount closer to the balance wheel.

Then I removed some vertical play on the metal axle and the escape fork mount using washers and also placed washers below some gears to reduce friction.

This whole process took me longer than the initial build, I rebuilt the tourbillon about 20 times, but it was great fun and worth every minute. Now the clock runs without any problems, it runs for about three hours before I have to wind it up again and keeps time very well.

I can recommend this model, but be aware this thing is an advanced build.

Definitely anadvanced build (not for the faint of heart)! This is my first Ugears project after doing six of a competitor brand. I find that the instructions weren't as detailed BUT the parts are much more sturdy. Actually thepanels are at least twice as thick.
I have it completed but I have a couple of gears jamming and Ihaven't found out whichones they are so it won't operate (annoying) but I will figure it out.
One other thing I discovered is that the "lock" is just a hair too long making catch on the drive gear!
Try it if you dare and want a challenge!

John

Fun project
Now if I can just get it to work. LoL

An excellent puzzle! A challenge to build and impressive to show off. Adequate instructions, easy to follow. Not for beginners though! And extreme care must be taken - this is very intricate puzzle, and demands full attention at all times. (I made one minor mistake: I installed the UGEARS logo backwards on the top part.) They point out that you need to seat the top tourbillon part. However, once it is completed, there is a breaking-in period: The first time it only ran a few seconds, but I kept restarting it and now it runs continuously.

The lenquige needs to bein nl to

Wow! This is a piece of art and I’m so grateful for this company and the fun we had putting this together. Such a work of craftsmanship!!

Amazing pieces, amazing escapement, wonderful

Just received my Ugears and looking forward to the build.

Hier passt Alles!

I have ordered from this company several times, and have always been very pleased with the items they make excellent presents, will order again from this company.