Yup, I had 24 hours per day and my whole retirement ahead of me.

@@andrewyates89 It it for sale, if so how much....I love it, fine job!!!!

Send me your address and I'll send you my bank details

Its real magic.Can i order one more ?

I have a messy plan of various cross-section layers from which I made the sheet drawings for cutting out all the super-wood parts, but I have not yet made assembly drawings that would be suitable for a "kit" form project. There are also quite a few other non-wooden parts required such as the chime disk, springs, balls, the synchronous motor, axels, etc. I had originally intended to offer the clock as a flat-pack kit with all the ancillary parts included, but I am concerned about model builders accidentally gluing parts incorrectly (eg. back-to-front which is very easily done) and resultant endless requests for extra spares. so at this stage I am only considering offering fully assembled units.

Yes, the synchronous motor speed was a bit of a challenge. It was sold as having a speed of 5 r/min but actually it was 4.9716xxx (lots more decimal fractions). I dismantled one of the motors and counted the gear teeth in order to work out how to fix the speed to precisely 5 r/min. It needs a 22 teeth gear on the motor output shaft driving a 24 teeth idler gear which is connected to a 21 teeth gear driving a 25 teeth gear. This is built into the clock as part of the whole gear train which reduces to 1 r/min and finally 1r/hour for the chime wheel. (This last reduction is done via a ratchet mechanism.)

I designed it myself. The operating principles were gathered from a combination of other peoples clever ideas and all I did was to try and package it together as compactly as possible. I have since published an updated design on KZfaq that overcomes some inherent weaknesses in this design.

Hmmm that's difficult question. It's not (yet) at the commercial stage for even a limited production run. I have made a handful of units and have "sold" some of them at the basic materials cost price (ZAR 2000) to friends in order to get some idea of longer term running reliability. I am also tweaking the design to speed up the manufacturing time to bring down the cost. (Currently it takes about 30 hours per unit, but a lot of that time is spent filing and sandpapering to get the various parts to fit just right.) So, to answer your question, the cost depends on whether you would be happy with an early, still-in-development version (reliability not assured) which is suitable for a home handyman to tweak and fiddle if necessary (around ZAR 4700 plus postage ex South Africa), or whether you expect a tried-and-tested, guaranteed version, the type of thing that you would expect from a speciality clock manufacturer in a beautiful custom-made box, etc. The difference in price between the former and the latter would probably be a factor of five and I doubt that I will ever get to the latter stage.

Bryan Goodwin I am working towards making a kit version but it is not quite ready yet. (See my response to Michael Vanderwater below.) I have changed some of the mechanism principles to make the clock more robust and less delicate but it will still look quite similar externally. I am currently evaluating the new design elements and expect to put up a vid clip of the new version next month.

Bryan Goodwin FYI, the new version is up at kzfaq.info/get/bejne/fK2Zmtyk2NHcmZs.html

Nice! Thanks so much

It's home-made. There were some technical problems with this arrangement so I re-designed the whole clock. You can find the updated version if you look at my other videos.

There is a little piece of wood glued on the base of the tray that prevents the first ball from exiting with the other balls when the tray empties.

Thanks for your expression of interest. As I indicated in my reply to Elmar Motam two months ago, I have a number of units being evaluated to ensure long-term reliability. These tests have exposed a number of weaknesses in the design that need to be addressed before I could offer the product more widely. In the meanwhile, I have been busy with a couple on other projects and am only now starting to work on re-engineering the ball clock. I am using the opportunity to also significantly improve the way the whole clock is constructed to reduce the assembly time - hopefully moving towards a situation where I could possibly offer the clock in kit form. So, please be patient and bear with me. I will upload a clip of the next version as soon as it is operational and we can then discuss your question.

michael vandewater FYI, the new version is up at kzfaq.info/get/bejne/fK2Zmtyk2NHcmZs.html

Liam Morley Hi Liam. If you scan thru my comments to other folk, you will see that I have highlighted some issues with the clock that are intrinsic design weaknesses and so I wouldn't recommend that you copy this version. I have been developing a better design that bypasses all the identified problem areas and am busy testing the Mk 2 version to verify that it is indeed completely reliable. (The time-keeping section has been on test for the past two months but I only finished the chiming part about ten days ago.) I will post a video within the next week or so. If you are keen to make such a clock, I suggest that you wait to see the upgraded version and copy that.

Liam Morley FYI, the new version is up at kzfaq.info/get/bejne/fK2Zmtyk2NHcmZs.html

stphn44 Thanks - I think I have now sorted out most of the obvious flaws in the design. Take a look at the Mk2 version at kzfaq.info/get/bejne/fK2Zmtyk2NHcmZs.html