Quantcast

Recent content by Buchanan

Help Support HMEM:

  1. Buchanan

    Astro Skeleton clock.

    Thank you for the compliments. Terry I know your work , so it is a compliment indeed. This is where we are now. The inner planet gearbox is practically complete. This is gearbox in two halves There are about 40 gears here. It is not all that big either There is 15,5 mm between the...
  2. Buchanan

    Astro Skeleton clock.

    Here are the following two updates on the clock, I will try to attach a few more photos shortly. http://www.my-time-machines.net/astro_12-18.htm http://www.my-time-machines.net/astro_11-18.htm
  3. Buchanan

    Astro Skeleton clock.

    Shopgeezer : My client is a highly intelligent and knowledgeable clock collector, here is his description of what he wanted. Quote: On the cover of the October 2003 issue of Horological Journal was a beautiful great-wheel skeleton clock by the firm Buchanan. I was interested to see if the...
  4. Buchanan

    Astro Skeleton clock.

    I have now altered the 12 ball races require for the center bearing assembly and made all the associated parts. These make a set of 5 concentric sleeves .. Here they are all assembled. I do appreciate all the compliments. Please take into account that this is a commercial...
  5. Buchanan

    Astro Skeleton clock.

    Clean everything and apply a little grease on the inner side of the outer race. Replace the balls all on one side . Put the inner race back in place. The thinner components make this a relatively easy process. Spread the balls equally around the bearing and gently encourage the cage back...
  6. Buchanan

    Astro Skeleton clock.

    Here is something others might find useful. I first read about in the M.E. many years ago. In this project space is tight. Especially in height in the Orrery. With the main center bearing assembly. the available height is 29mm. into that space we must fit 6 concentric sleeves or shafts and 12...
  7. Buchanan

    Astro Skeleton clock.

    Kvon you are dead right. I polish with Brasso and Lacquer with an Australian product called Like Armor. We have not made a decision what the final finish will be, but if you polish brass and leave it undercoated, just don,t touch it. (why do we want to hold that part when it is beautifully...
  8. Buchanan

    Astro Skeleton clock.

    Here is the next installment:http://www.my-time-machines.net/astro_10-18.htm
  9. Buchanan

    Stuart No 4 Engine

    I see a Hardinge in the photos1. That is a beaut of a machine. Enjoying the build.
  10. Buchanan

    Another Knucklehead Build

    Terry. The way you make the distrubter blend into the overall design is perfect.
  11. Buchanan

    Astro Skeleton clock.

    Here are a few photos of progress to date, Jupiter is complete 64 of the 105 gears in the Orrery.
  12. Buchanan

    Astro Skeleton clock.

    Here is the next installment. http://www.my-time-machines.net/astro-09-18.htm Saturn is complete and Jupiter nearly so. Kvom, yes. You are correct. The clock is not stopped or interfered with during a demonstration. So the accuracy of the clock is not affected.
  13. Buchanan

    Astro Skeleton clock.

    The prime criteria when given this commission was: size(not to small ),complexity and movement. When the clock is running normally, every thing moves in real time. So the fastest moons on Saturn and Jupiter complete an orbit in just over a day, But, that is a little slow so we have a demo mode...
  14. Buchanan

    Another Knucklehead Build

    Would the slight rise in temperature due to compression have a crank speed factor. More so on small engines. Temperature would be lost through the cylinder walls, piston and head, but that does not explain why a small engine is sometimes harder to start when warm.
  15. Buchanan

    Astro Skeleton clock.

    About 6 foot , the brass movement is 28 inches wide 29.5 inches to the top of the brass balls and 17 inches deep . I have lost count of the number of parts but it must be heading for the 4000 mark
Top