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Author Topic: Three Legs are better than Two  (Read 38792 times)
Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
Moderator
Master Tinkerer
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United Kingdom United Kingdom


Herr Döktor, and friend.


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« Reply #25 on: October 02, 2011, 09:37:37 am »

Thank you! You know, for many years I was engaged in the making of prototype action figures- lots of multiple pose joints in arms legs and torsos, so I thought this would be easy; but I spent the better part of the day driving down to Dover and back, thinking about ever more complicated ways of making the hip joints, but it wasn't until that evening when I was walking down to my workshop that I had the "EUREKA!" moment- if I'd spent the day in the workshop, I may well have made it in a far more complicated and fragile way...

It pays to think before acting!

Smiley
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Dr cornelius quack
Rogue Ætherlord
*
United Kingdom United Kingdom


Arrant Carney. Phmebian Cultural Attache.


« Reply #26 on: October 02, 2011, 12:50:51 pm »

I've just put my hat on in order to be able to doff it in your direction.

Bravo!!

Scratch building of the highest standard.

Write a book.
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Such are the feeble bases on which many a public character rests.

Today, I am two, separate Gorillas.
Major Twangy Rubber
Snr. Officer
****
England England


« Reply #27 on: October 02, 2011, 01:54:22 pm »

It's bloody witchcraft, that's what it is!
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Larcen
Deck Hand
*
United Kingdom United Kingdom

Gravatar

Married with 2 air Pirates in training


« Reply #28 on: October 02, 2011, 08:07:43 pm »

thats damn well ingenious, bravo
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Who are you people and what are you doing with my cogs!
mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #29 on: October 02, 2011, 08:34:46 pm »

Very interesting.

Herr Döktor I am curious, what do you do with all of your wonderful Creations once you are finished with them?

He opens the back door, shoos them out into the garden and says, 'BEHOLD!! The only thing greater than yourself!!* FLY!! FLY!!, Little One..... BE FREE!!'

* Sometimes, the first thing that one of the Dok's artifacts behold is the number 57 Bus as it goes past the gate. This has led to some rather odd religious beliefs amongst his creations.
        I didn't think that the 57 omnibus went that far out unless the driver is well and truly lost  Grin
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general hammer abuser former lawnmower fireman
Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
Moderator
Master Tinkerer
*
United Kingdom United Kingdom


Herr Döktor, and friend.


WWW
« Reply #30 on: October 02, 2011, 09:14:31 pm »

Well, as, if memory serves, the No. 57 bus goes to Willesden Green*, to get to me it would have to be very far out indeed.

*Thank you, Dangermouse.

Meanwhile, here's a snap to give you some idea of scale:


The figure is a passing WW2 German tank commander, who was more than happy to help. He's 1/35th scale, or 54mm to the wargamers, making this behemoth over thirty-five feet tall in real life!

I've also added a door:


Which opens:


Mind you, the door is nearly twenty scale feet from the ground, so the crew would need a ladder.

The German tank chap had to have a look around, ably demonstrating that I've also put in a flat floor:


I also put bases on the feet, so they are a bit more solid, and less likely to act as suction cups.

Actually, speaking of Dangermouse, this particular project has been reminding me a little of Baron Greenbacks Frog's Head Flyer...

Spoiler (click to show/hide)

« Last Edit: October 02, 2011, 10:13:05 pm by Herr Döktor » Logged
mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #31 on: October 02, 2011, 10:30:30 pm »

The nearest 57 I know of runs Kingston to Stretham  these days
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Dr cornelius quack
Rogue Ætherlord
*
United Kingdom United Kingdom


Arrant Carney. Phmebian Cultural Attache.


« Reply #32 on: October 03, 2011, 12:13:56 am »

Never let facts get in the way of a good story.

Your model soldier has either just seen said bus and is signalling his intention to board it, or is giving orders to the Milkman.
'YOU VILL LEEF ONE LOW FAT YOGHURT!!'
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Lord Jeffreys
Snr. Officer
****
United States United States



« Reply #33 on: October 03, 2011, 06:15:50 am »

Brilliant! Basic geometry, three points define a plane. No wobble!
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Mr. Hatchett
Zeppelin Admiral
******
United States United States


Unnaturalist


« Reply #34 on: October 03, 2011, 04:26:22 pm »

Rather than using a ladder, could the operator not just lower the cab to near ground level?  It would take up more space on the lot with the legs splayed out thus, but I would assume that parking space is less precious than interior space.
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When Friday comes, we'll all call rats fish.
Mr Peter Harrow, Esq
Zeppelin Overlord
*******
United Kingdom United Kingdom

Fellow of the Victorian Steampunk Society


« Reply #35 on: October 03, 2011, 05:07:09 pm »

I would have thought a combination if both, a hatch forming a partial ladder and the Tripodulum squatting .
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Proudly giving the entire Asylum The Finger!
Inflatable Friend
Zeppelin Admiral
******
Italy Italy



« Reply #36 on: October 03, 2011, 05:33:19 pm »

Another fantastic looking project there Herr Docktor!

For deployable ladders I'll throw out the fancy dandy Boeing Air Stair.
Spoiler (click to show/hide)
It's slow, but makes a large ladder emerge from a small hole. With pop up rails!
« Last Edit: October 03, 2011, 06:24:58 pm by Inflatable Friend » Logged
Steelheart
Officer
***
United States United States


« Reply #37 on: October 03, 2011, 06:07:59 pm »

Truly you have an amazing imagination/skill/knowledge to be able to create such designs and implement them. I often wonder what it would be like if we had unlimited funds and could produce full scale working prototypes. Then I think that perhaps it is better, and safer for our neighbors, that we do not.

I agree with Mr. Hatchett in that the machine should, if the upper legs will allow for the rotation, lower itself close to the ground and perhaps have a small fold out stair.
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mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #38 on: October 03, 2011, 08:37:16 pm »

I have a little question what stops it from falling over when a foot is lifted ?
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Dr cornelius quack
Rogue Ætherlord
*
United Kingdom United Kingdom


Arrant Carney. Phmebian Cultural Attache.


« Reply #39 on: October 03, 2011, 08:46:38 pm »

What stops you ?

Actually, I wouldn't put it past the Dok. to have a 1/35th scale Segway bolted to one of the main bulkheads.
« Last Edit: October 03, 2011, 08:57:13 pm by Dr cornelius quack » Logged
Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
Moderator
Master Tinkerer
*
United Kingdom United Kingdom


Herr Döktor, and friend.


WWW
« Reply #40 on: October 03, 2011, 08:53:29 pm »

I have a little question what stops it from falling over when a foot is lifted ?

What stops you ?

Indeed, Dr. Quack is quite correct: it's that same inherent automatic balancing system that works for bipeds, but here increased by 50% to account for the third leg.

No one ever asks Martians how they do it, especially not Steampunks; we're all far too polite.

Wink
Logged
mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #41 on: October 03, 2011, 08:57:37 pm »

What stops me falling over is keeping my centre of mass and centre of gravity (which are not that close to the ground) reasonably over my centre of support (foot)  (and going easy on the higher proof alcohol )    M
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mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #42 on: October 03, 2011, 09:16:26 pm »

It is just from an engineering point it would need either  a tear drop shaped foot print, a wider body or a more upright stance to keep the centre of mass within the centre of support when on two legs during perambulation      M
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Dr cornelius quack
Rogue Ætherlord
*
United Kingdom United Kingdom


Arrant Carney. Phmebian Cultural Attache.


« Reply #43 on: October 03, 2011, 09:28:56 pm »

One might posit a tripodal gait in which the lifting of one leg causes a pivoting movement about axis joining the ground contact points of the other two. Such a transfer of weight, combined with a rapid replacement of the lifted foot would act to cause a springing forward of the whole structure somewhat like the loping run of certain primates when using the arms as springing points.
Or this.
Jumping Dog Toy


Come on, Dok. You know you want to.
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akumabito
Immortal
**
Netherlands Netherlands


Mundus Patria Nostra!


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« Reply #44 on: October 03, 2011, 09:30:47 pm »

I vote rocket power. You know, a short boost to compensate for balance every time a foot is lifted. Compleyely pointless mode of locomotion, of course, but the fiery gait would be quite the epic sight..
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Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
Moderator
Master Tinkerer
*
United Kingdom United Kingdom


Herr Döktor, and friend.


WWW
« Reply #45 on: October 03, 2011, 09:33:56 pm »

Just enough Cavorite to give it the weight of a small dog, or medium sized cat; thus allowing it to bound, three legged, across the fields of Surrey and the plains of Mars with equal ease.
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mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #46 on: October 03, 2011, 09:38:21 pm »

I hope you have your can of Cavorite well chained down to save it damaging your workshop    M
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Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
Moderator
Master Tinkerer
*
United Kingdom United Kingdom


Herr Döktor, and friend.


WWW
« Reply #47 on: October 03, 2011, 09:39:45 pm »

It's keeping the lid on the Cavorite paint that's difficult!
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mark V
Snr. Officer
****
England England


where's the firing shovel

1CC1_36006
« Reply #48 on: October 03, 2011, 09:59:04 pm »

presumably the secret is a tethered lid and open the tin upside down    M
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Dr cornelius quack
Rogue Ætherlord
*
United Kingdom United Kingdom


Arrant Carney. Phmebian Cultural Attache.


« Reply #49 on: October 03, 2011, 10:08:36 pm »

The whole process is made much easier by buying your Cavorite from a reputable supplier, who will provide it in a properly made tin with the label inverted and the lid on the bottom to begin with.

Now if that aint a cue for a build, then I don't know what is.
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