Thank you! I will release the data soon. Actually, many people sells former Hollow Clock 4 without my permission (that was non-commercial license), and some RU-vidrs earn many viewers without clear credit. Therefore I wondered whether the new design should be published or not -- but I have no time to run business by my own, and my first priority is the pleasure of the sincere hobbyist, so I decided to release the data as before. I am always encouraged by you, and you. thanks
Amazing clock, my daughter requested for one :) With the indexes it's much more kids friendly. Thinking of using glow in the dark filament for it. BTW, I got to your page thanks to someone attributing your work.
Thanks! Please fix the magnets so securely because neodym magnet is dangerous for children. If your clock is sufficiently smooth (less friction), it could be remove ratchet mechanism to make the clock silent, or make click noise per minute.
It use click and rewind motion to keep correct time. If your clock is very smooth (and the stepper motor never loses its steps), you can remove click part.
Thanks! RP2040-Zero would be a next standard for me to make clocks, because it is cheap, compact and accurate. Genuine Waveshare RP2040-Zero is a bit expensive, but you can find compatibles below 2USD at AliExpress. It is now cheaper than compatibles of Arduino nano. I also like USB-C connecter that feet are inserted and soldered to the holes of PCB (thus it is much more durable than surface-mounted connectors).
@@shiuraWow they got cheap fast, that's pretty cool. And I agree 100% with the USB connectors that are soldered down are so much more reliable. I actually bought some USB C breakout boards just so I didn't have to use the crappy ones on most TP4056 boards.
Nice, Build. If I May Please Ask You Kindly? If I was to give this as a gift to someone such as a Friend / Family, how do they set the Correct time with this? I realise I have to Program the Controller, I have no issue with this part. Just a little confused
The display part (upper ring) can be pulled out from the base that has a motor and circuit. Turn the internal rings of the display part by your hand to the current time, then insert it to the base. All set!
No, I do not have a plan to extend it to WiFi time sync. I would like to keep this clock as simple as possible, and do not want to add configuration step. It is sufficiently precise (less than 1 second error per minute) for normal use.
@@shiura Thanks for the answer. But here's a suggestion. I think this type of watch with WiFi based on an ESP32 type board would be very beautiful and interesting.
@@marcosbarone6223 I agree with the merit of ESP32. Actually I made some clocks with WiFi sync, www.thingiverse.com/thing:5892066 www.thingiverse.com/thing:5518998 www.thingiverse.com/thing:5457127 www.thingiverse.com/thing:5437453 www.thingiverse.com/thing:5356334 www.thingiverse.com/thing:5242321 www.thingiverse.com/thing:5170654 To give auto sync function to this analog clock, it is necessary to add some kind of finding origin mechanism. It is not easy because this clock has insufficient space to add it.
@@shiura I know. I follow your work. I even have the WiFi Sync Clock 2 model here at home, which works very well. I suggested the hollow model because I saw one on RU-vid ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HT7B_4KGiqk.html. However, there is not much explanation on how to do it. Once again, I thank you very much for your kind attention.
@@marcosbarone6223 Thank you again for following and trying my works. I saw the clock you introduced. He noted that it needs manual initialization (align hands to 12:00), ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-HT7B_4KGiqk.htmlfeature=shared&t=63. Therefore, it is not so convenient. Anyway your suggestion I understand, and try it in the future.
Hello, I'm Siura I like your work. I'm asking you this question because there is a problem during the production process. First of all, if you use the test-code, the motor rotates in the right direction When clock-code, it continues to rotate in the reverse direction. If int port[4] = {5, 4, 3, 2} changes to int port[4] = {2, 3, 4, 5}, the reverse rotation is unknown. For your information, it says that when you turn on the power for the first time, it rotates backward for a while, but when you turn on the power, it only reverse turns right away, can you tell me why? And I only have 3 motor drives on, is that normal too?
No, as answered to the other question, I have no plan to add WiFi sync function. There are several reasons. Firstly, I would like to keep this clock as simple as possible. If they use WiFi, they should configure the clock and it is troublesome. The other important factor is the way to find the origin. Since it has two rings, it is not easy to find the origin precisely. Mechanical origin is also difficult because there is no space to add hook. The last problem is the space for ESP-based microcontroller. Some people add WiFi function to Hollow Clock 4 without origin finding methods, so it needs manual initialization (manually align hands to 12:00 then insert). Every time it got power lost, the initialization is necessary. If current time were stored to non-volatile memory every minute, it could know when the power is lost theoretically. However, the wear of flash memory matters. Usually lifetime (maximum count) of writing NVM is around 100,000 so it lasts only 2 months. I think WiFi sync function is necessary to complex clocks that is difficult to adjust manually, such as www.thingiverse.com/thing:4939540 .
Thank you for trying this clock. I think it might be caused by the variation of the stepper motor (for other projects, I received similar reports. there are multiple variations of this motor, and some instances rotate different direction.) Please change the order of the number of int port[4] = {5, 4, 3, 2}; to int port[4] = {2, 3, 4, 5}; and watch what happens. If you do not have Arduino IDE, I will send compiled binary. Please not that it rotates back once when it is powered to initialize the position of the hands.
Dear Shiura, When I apply power, the engine rotates backwards for a short time, then forwards. It rotates backwards and then forwards a small amount every minute.
@@djtur1 When power is on, the minute hand rotates backwards for a short time. It is a initialization step to align the minute hand position. Then it rotates forward to advance 1 minute, then rotate backward a little. This is repeated every minute. This motion works to compensate the slippage of the motor (out of step). If the load of the clock hand is too large compared to the motor torque, it often rotates less than intended. Therefore, It rotates more than the angle of 1 minute (6 degrees) , then rotate backward. Backward motion is regulated by the ratchet mechanism, and slippage is compensated in this time. Therefore, every minute, it rotates forward more than 6 degrees (but less than 12 degrees) then move backward. It is programmed (intended) motion.
ru-vid.comaQrvOLPWvrk?si=gyDyS2dQg6zrXmF4 I'm so sorry to bother you. Is it normal for it to be like the video I shared the link to? When it works like this, the latch hook causes the engine to have difficulty when it turns upside down.
