Forums

Building the pendulum demonstrator

Started by Tim Wescott June 12, 2016
I show how I built the demonstrator for my systems & stability video.  
It's an electromechanical pendulum, and it's kewl -- or it was, until I 
broke it making this video.

https://youtu.be/YW33PVTYhdw

-- 

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

I'm looking for work -- see my website!
In article <9s-dnYjpTKR9JcDKnZ2dnUU7-LXNnZ2d@giganews.com>, 
seemywebsite@myfooter.really says...
> > I show how I built the demonstrator for my systems & stability video. > It's an electromechanical pendulum, and it's kewl -- or it was, until I > broke it making this video.
"Couldn't help it come apart in my hands" The story from many a youngster :-) -- Paul Carpenter | paul@pcserviceselectronics.co.uk <http://www.pcserviceselectronics.co.uk/> PC Services <http://www.pcserviceselectronics.co.uk/pi/> Raspberry Pi Add-ons <http://www.pcserviceselectronics.co.uk/fonts/> Timing Diagram Font <http://www.badweb.org.uk/> For those web sites you hate
On Sun, 12 Jun 2016 22:05:12 +0100, Paul wrote:

> In article <9s-dnYjpTKR9JcDKnZ2dnUU7-LXNnZ2d@giganews.com>, > seemywebsite@myfooter.really says... >> >> I show how I built the demonstrator for my systems & stability video. >> It's an electromechanical pendulum, and it's kewl -- or it was, until I >> broke it making this video. > > "Couldn't help it come apart in my hands" > > The story from many a youngster :-)
I tell the story in the video, but basically it has a very fiddly bearing in there. I got it working and glued it in place, but had to break the glue joint for the tear-down. Then I failed to fiddle it back into working again. :( Maybe I'll replace the ball bearing with a flexure, as I recommend in the video. Or, maybe I'll just put the damned thing on the shelf and cook up another video!! -- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com
In article <IPqdnTH2c8lVSMDKnZ2dnUU7-bmdnZ2d@giganews.com>, 
tim@seemywebsite.com says...
> > On Sun, 12 Jun 2016 22:05:12 +0100, Paul wrote: > > > In article <9s-dnYjpTKR9JcDKnZ2dnUU7-LXNnZ2d@giganews.com>, > > seemywebsite@myfooter.really says... > >> > >> I show how I built the demonstrator for my systems & stability video. > >> It's an electromechanical pendulum, and it's kewl -- or it was, until I > >> broke it making this video. > > > > "Couldn't help it come apart in my hands" > > > > The story from many a youngster :-) > > I tell the story in the video, but basically it has a very fiddly bearing > in there. I got it working and glued it in place, but had to break the > glue joint for the tear-down. Then I failed to fiddle it back into > working again. > > :( > > Maybe I'll replace the ball bearing with a flexure, as I recommend in the > video. Or, maybe I'll just put the damned thing on the shelf and cook up > another video!!
Too many toys and too much free time :) -- Paul Carpenter | paul@pcserviceselectronics.co.uk <http://www.pcserviceselectronics.co.uk/> PC Services <http://www.pcserviceselectronics.co.uk/pi/> Raspberry Pi Add-ons <http://www.pcserviceselectronics.co.uk/fonts/> Timing Diagram Font <http://www.badweb.org.uk/> For those web sites you hate
On Mon, 13 Jun 2016 11:03:58 +0100, Paul wrote:

> In article <IPqdnTH2c8lVSMDKnZ2dnUU7-bmdnZ2d@giganews.com>, > tim@seemywebsite.com says... >> >> On Sun, 12 Jun 2016 22:05:12 +0100, Paul wrote: >> >> > In article <9s-dnYjpTKR9JcDKnZ2dnUU7-LXNnZ2d@giganews.com>, >> > seemywebsite@myfooter.really says... >> >> >> >> I show how I built the demonstrator for my systems & stability >> >> video. It's an electromechanical pendulum, and it's kewl -- or it >> >> was, until I broke it making this video. >> > >> > "Couldn't help it come apart in my hands" >> > >> > The story from many a youngster :-) >> >> I tell the story in the video, but basically it has a very fiddly >> bearing in there. I got it working and glued it in place, but had to >> break the glue joint for the tear-down. Then I failed to fiddle it >> back into working again. >> >> :( >> >> Maybe I'll replace the ball bearing with a flexure, as I recommend in >> the video. Or, maybe I'll just put the damned thing on the shelf and >> cook up another video!! > > Too many toys and too much free time :)
This one kind of turned into an unhealthy obsession. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com I'm looking for work -- see my website!
On 6/13/2016 10:57 AM, Tim Wescott wrote:
>>> Maybe I'll replace the ball bearing with a flexure, as I recommend in >>> the video. Or, maybe I'll just put the damned thing on the shelf and >>> cook up another video!! >> >> Too many toys and too much free time :) > > This one kind of turned into an unhealthy obsession.
I strongly disagree! I think you learn the MOST on "pet projects" where you aren't arbitrarily constrained by a client's notion of what it should do, how it should work, what it should cost, when it should be finished, etc. Your money, your time, your imagination! Nothing to get in the way...
On 13-Jun-16 3:32 AM, Tim Wescott wrote:
> I show how I built the demonstrator for my systems & stability video. > It's an electromechanical pendulum, and it's kewl -- or it was, until I > broke it making this video. > > https://youtu.be/YW33PVTYhdw
Good video Tim - interesting stuff. Thank you. I recall seeing you post about production issues some time back - the video & audio quality are fine.
On Mon, 20 Jun 2016 16:06:09 +0800, axolotyl wrote:

> On 13-Jun-16 3:32 AM, Tim Wescott wrote: >> I show how I built the demonstrator for my systems & stability video. >> It's an electromechanical pendulum, and it's kewl -- or it was, until I >> broke it making this video. >> >> https://youtu.be/YW33PVTYhdw > > > Good video Tim - interesting stuff. Thank you. > > I recall seeing you post about production issues some time back - the > video & audio quality are fine.
Thanks -- the posts were very helpful. -- Tim Wescott Control systems, embedded software and circuit design I'm looking for work! See my website if you're interested http://www.wescottdesign.com
> > > Good video Tim - interesting stuff. Thank you. > > I recall seeing you post about production issues some time back - the > video & audio quality are fine.
+1 Mark