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M.D's console dimensions and techniques,

Started by museumdave, Jul 10, 2013, 09:48 pm

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museumdave

Jul 10, 2013, 09:48 pm Last Edit: Sep 03, 2013, 02:57 am by museumdave
M.D's console dimensions and techniques,

Hello all, Perhaps this should not be a separate page from my build page- and if not let me know.

I have generally been reluctant to share dimensions of my build in large. This is really not because I am a foul selfish git (mostly), but because I don't want to lead anybody astray.  I had thought that through the build I may discover through some thing or another that my numbers were badly off- as of yet I have not discovered this. However I want to be perfectly clear that I DO NOT KNOW THAT MY DIMENTIONS ARE ACCURATE!!!

But I have been asked by a number of people on the site to share, and am happy to do so.
So take them for what they are.  A best guess in most cases.

There are some pieces that I scaled very carfully from known objects. Using the singer handle for example to get some dimensions for the demat lever.  There are also some bits where I found something that looked about right and used it with no measuring at all.

So to start with the demat lever for Dino.

demat1.jpgdemat2.jpg

The body of the housing is a board measuring 3.5 inches wide and  8 inches long. It is about 2 1/2 inches deep.  added to this there is the outer raised edge that is  9 1/2 inches long, 5 inches wide and 3 inches deep ( plywood).  To the lever side an extra layer of ply was added angled at the front so that it measures roughly 4 inches long at the top and 5 1/4 inches long at the bottom.  I added a circular punched out bit of metal- I think used to help mount ceiling lights (?).

The lever it self is about 1/4 inch think and inch wide and 8 inches long- the last 3 1/4 inches taper and end in a ball.

There is a bit of ply that was cut into a bracket to stop the lever bottoming out at the top of bottom.  It is 1/2 inch ply cut to be 4 inches long and an inch wide- with a notch out of the centere for the lever.
The whole thing is mounted to a base plate the is flush with the lever guard and overhangs on the opposite side. this plate measure (roughly ) 7 3/4 inches wide by 9 and  1/8 long.  My base plate is flush at the front of the housing and doesn't go quite all the way to the back of the housing.... To be honest - I don't recall if that was on purpose, or just the way it worked.

The clock housing is 2 1/8 square

Dino  I hope that helps.

There will be more, but if any body wants anything in particular please let me know.

Thanks all.

Dave
"I could retire and be the curator of this place,"  the 11th doctor or maybe the 12th?

galacticprobe

Jul 11, 2013, 06:27 am #1 Last Edit: Jul 11, 2013, 06:28 am by galacticprobe
Wow, M.D.! That helps, indeed, and definitely gives me something to scale things by! At the size I have to work with because of room space I can already see that my idea for the Demat Lever has to be scaled back some because one this size would be too large. (So it looks like I'll be working on a 3/4ths scale of yours - maybe smaller once I start crunching numbers.)

With all of those measurements I can draw up a serious diagram and use that as a starting point. (And all I was hoping for was a basic 'X inches long, by Y inches wide, by Z inches high' for the main part.)

Thank you so very much!

Dino.
"What's wrong with being childish?! I like being childish." -3rd Doctor, "Terror of the Autons"

museumdave

Sep 02, 2013, 09:00 pm #2 Last Edit: Sep 02, 2013, 09:15 pm by museumdave
Hello All,
Sorry for the delay, I have been trying to deal with some computer issues...  I have some rough numbers in terms of over all dimensions for the console.console overview.jpg


These dimensions are a bit rough.  And if I recall correctly my console is not so much circular from the top as it is an oval- so it will be a touch longer(or shorted) across.  I will see If I can find some one to hold the other end of the tape measure and get more complete measurements.  The ribs are 2 different widths.  And the central column currently reaches to the (some what limited) ceiling, at around 8'.  This means that there is just under 3' of central column exposed, but is designed to extend another 2' (ish)
So If I had the space the whole thing could be 10' tall.

It is funny I would have said that I think I have gone a little too large to be accurate on this console- that is until I had seen the youtube thing I did... now I think it may be a touch small.

Any How I hope that helps

Cheers all

Dave
"I could retire and be the curator of this place,"  the 11th doctor or maybe the 12th?

galacticprobe

Sep 03, 2013, 04:51 am #3 Last Edit: Sep 03, 2013, 04:52 am by galacticprobe
Quote from: museumdave on Sep 02, 2013, 09:00 pm
It is funny I would have said that I think I have gone a little too large to be accurate on this console- that is until I had seen the youtube thing I did... now I think it may be a touch small.


Great measurements, M.D.! But what YouTube thing are you referring to? I thought in the great discussion we had on this back in this thread, http://tardisbuilders.com/index.php?topic=2734.0, the general consensus was that this console (at least going by the edge of the rim) was six feet in diameter - a bit wider at the ribs. Is there something (official?) on YouTube that contradicts that and gives different dimensions?

Dino.
"What's wrong with being childish?! I like being childish." -3rd Doctor, "Terror of the Autons"

museumdave

Hey Dino,

I just meant the youtube things I have done.  This one gives a different sense of scale vs my own body.

https://www.youtube.com/watch?v=dxVgIFA8pY8&feature=youtu.be

I know the consenses was that the rim was 6 foot across, but I figured it should be a bit more...

Thanks for look
Dave
"I could retire and be the curator of this place,"  the 11th doctor or maybe the 12th?

museumdave

Oct 05, 2013, 09:34 pm #5 Last Edit: Oct 05, 2013, 09:42 pm by museumdave
Hello All,

So I have described this else where, and my version is far from perfect, but I had the impression that my explanation wasn't that great so I thought I would have another go.


The time rotor.

we have a length of cable (grey) hanging over a pulley at the top. (red)
on one side of the cable we have the 1/2 of the time rotor pointing up- made of 2 discs and 6 tubes (Blue)

On the other side we have the other half of the time rotor - made of 2 discs and 6 slightly smaller tubes pointed down ( also blue)
the pieces of the rotor are held to the cable by cable clamps (furls) above and bellow- so that the maintain there spot on the cable- hence if that  side of the cable moves down- that half of the rotor moves down with it.

At the bottom we have a windshield wiper motor that moves like a teeter totter up and down.

So as the motor tips to the right the right side moves down taking the bottom half down BUT on the other side of the pulley the top half moves UP thus opening/ expanding the rotor.

As the left side moves down the left half or top half moves down -BUT_ on the other side of the pulley the bottom half moves UP -thus closing/ shrinking the rotor.

It works just like that (when it works ::))- EXCEPT the pulley is really small so that the top half and the bottom half interlock.

OK?

closing rotor.jpgopening rotor.jpg


Hope that makes sense.

thanks for looking

Cheers

Dave
"I could retire and be the curator of this place,"  the 11th doctor or maybe the 12th?

kiwidoc

Thanks Dave, that makes a lot more sense to me than the ways I'd been trying to imagine the system working!   Nice explanation  :)

galacticprobe

Oct 06, 2013, 04:44 am #7 Last Edit: Oct 06, 2013, 04:44 am by galacticprobe
Agreed. The graphic also helps. (The "exploded view" always helps show things better.) And small pulleys are very easy to find. Just about every home improvement store has them, some so small you'd think they were intended for fishing line!)

Dino.
"What's wrong with being childish?! I like being childish." -3rd Doctor, "Terror of the Autons"

rob49152

Watching the video the first thing that popped into my mind was 'wibbly-wobbly' :) But it seems to work quite well.

mordrogyn

I had actually hypothesized on how best to go about this back when that console first appeared, though with no intention or space to build a console it remained firmly inside my head.

You can actually lose the pivot on the bottom by directly connecting the bottom half to whatever is doing the raising/lowering  (a car window motor or something.  There is also no need then for the extra cable that runs down to where your pivot would be, the top half can be on the end of your cable.
The top half is counter balanced by the bottom and is still moved in the opposite direction to the bottom as the cable moves over the pulley.
It may have a little less wobble, I don't know I never actually built it.

I don't know if that makes sense to anyone but me, but there you are, the "How i would manage the rotor if I was building a console but I am not" theory  :)
(http://i50.tinypic.com/20kan9v.jpg)

atomicgraph


davidnagel

morddrogyn, might need to explain THAT one to me. lol.

Well done to MD for splashing this out on the web finally, this mechanism has been in my head for a few years - well since the TV Movie!
Kind Regards,

David

www.spiffinglyniceguy.co.uk