GearHeads Corner

It's been on and off the back burner and taken a couple of false starts on the elctronics but I actually have a moving pendulum prototype for what will ultimately become my GPS locked wooden clock!
Here's a quick video of where I'm up to.

Kit

https://vimeo.com/236876727

Kit:

Awesome. A great video and a great explanation. Keep us informed.

Art

Nicely done Kit, first GPS synced pendulum clock I've seen. Congratz..

Cheers
Bob
;)

Thanks for the kind words gents.

I did a few calculations to compare the efficiency of this pendulum to my Sextus clock. It's not good!

Weight driven Sextus:
Runs for approx 30 hours on energy supplied by a 3Kg weight falling 1m.
Total energy expended = 3Kg x 1m x 9.81N/m = 30 Joules
Time = 30 x 60 x 60 = 108000 seconds
Average power = 30 Joules/ 108000 seconds = 0.28milliWatts

Electric pendulum:
Draws 2Amps from a 12Voly supply for 25mS every second.
Average power = 2A x 12V x (25/1000) = 600milliWatts

A few more calculations reveal that at least 98% of the power delivered to the solenoid of the electrc clock is lost as heat in the resistance of the coil. However, construction of a superconducting solenoid is NOT on my agenda... Yet. None the less, as the ultimate plan is to power the clock from a solar panel I think its carbon footprint will be within acceptable limits.

Kit

>>However, construct ion of a supercond ucting solenoid is NOT on my agenda.


  Im my previous career I took care of MRI Magnets, so I could help with the
superconducting magnet thing...think I still have my cryro license somewhere..
does seem like overkill for a clock though. :)

Art

;D