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I am really enjoying this build, it is taking shape fast and looks real good. When making nuts for difficult threads, I have cut the male thread an inch or two longer, or cut a second identical male thread and made a tap out of the extra length. To get the tap hard enough, I just case harden...

Here is a link to another months work on the clock. This is what happened in October. http://www.my-time-machines.net/astro_10-17.htm It is mostly about how I produced cams to give a annual cycle of positions on the shutters that display the length of day and night. It would, no doubt, be...

I like your steady a lot. could you tell us about the automata ? They are usually very interesting. Thanks Buchanan

Here is another update. http://www.my-time-machines.net/astro_09-17.htm This section of the clock is now almost complete. The attached photos show how I made the Moon. The materials are Mammoth ivory and ebony. I am not sure how old the mammoth is, but the ebony comes from a round ruler used...

The Arabic numbers are drawn by hand 2 or 3 times oversize and reduced on to paper as you see here. When we are happy we send it to an enamel dial maker and they are done in traditional fired enamel. The construction is modular, so we can pack the small delicate parts separate , Transport and...

Those poor sprag clutches!:p

Here is another update. http://www.my-time-machines.net/astro_08-17.htm

This web page and the videos on it gives a very good overview of the clock. http://www.my-time-machines.net/astro_10-16.htm

Yes, I have used Berrilium copper(Dangerous in dust form) and Tungsten copper. The best electrode material I have used is ,to my knowledge Tellurium Copper. It is the best material for copper based electrodes.: Quote: Tellurium Copper's (TelCu) resistance to hydrogen embrittlement...

Kvom. The electrode is copper, correct, you can use any conductible material as an electrode. The four factors that make a good electrode are low electrical resistance, high melting point, good machining, and price. I know that jewelers will use silver as an electrode. Gold would be...

We have another month's progress here: http://www.my-time-machines.net/astro_07-17.htm I have been filing cams for the sunrise and sunset shutters and hands. A slow and painful process.

Kvom I think I could say that there is a light at the end of the tunnel.... I have two more major assemblies to make. A Planisphere, which is quite simple. It shows the stars and also the sun's position in the sky, and an Orrery. This has all the planets up to Saturn with moons for the...

There is a new instalment on the clock at my client’s website.: http://www.my-time-machines.net/astro_06-17.htm Here is something that might be of interest. I CNC milled a pretty brass Sun face for the dial that I am working on. I needed to fix it to a steel arm to make it into a clock...

Kvom : I have a large set I bought and have added to from to time to time. All from Thorntons in England. I have made my own single tooth fly cutters over the years but if you want a beautiful smooth transmission then I cannot beat a bought cutter. In clock making , smooth torque is some times...

Absolutely stunning. A beautiful kinetic art container holding thousands of hours of accurate careful planing and labor. Buchanan

So you started it,th_confused0052 And you only give us a 3 line description of it running! Congratulations! Buchanan

I tried to melt shell casings for casting many years ago. 1985! The brass alloy is designed for hot pressing, I believe. The brass melts in a cruicable bit stays a plastic mass rather than becoming a fluid. Old taps and other scrap brass melted fine but I never had any success with shell...

Terry , I really like your period engraving on your panel, not to mention everything else that you have done. It is beautifull.

That is a neat tool storage system!

You may need a few more rollers on the outside of your idler/gearshift wheel to stop the belt jumping teeth and loosing your gear ratio in relation to your gear lever. These systems don't have rigid belt tension but usually rely on spring tension to keep the belt tight. Make one and test it, it...