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Author Topic: Three Legs are better than Two  (Read 38818 times)
Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
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Herr Döktor, and friend.


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« on: October 01, 2011, 12:19:47 am »

Well, for the longest time I've been intending to make some sort of three-legged walking tank type machine, possibly the sort of thing that might just have been back-engineered from one of the Martian tripods, but with the practical look of Great British common sense.

So far, I have this:


Made from three plastic wine glasses, three parts from the reliable vase set*, three plastic Xmas baubles and one giant Xmas bauble.

With the hip/shoulders, knee/elbow and ankle/wrist joints all articulated, with the shoulders and ankles being swiveling ball joints, the machine is fully pose-able:


This is just the bare bones, needs access hatches, smoke stacks, windows, guns etc.

*
Spoiler: this one (click to show/hide)
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Atterton
Time Traveler
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Only The Shadow knows


« Reply #1 on: October 01, 2011, 12:25:53 am »

I´m thinking that this is what the Martian tripods would look like if Disney made War of the Worlds.  Cheesy
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TVC15
Zeppelin Admiral
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Extremely hazardous...have some?


« Reply #2 on: October 01, 2011, 12:30:24 am »

Always looking forward to your builds, sir. I have a pseudo-prototype that may lend to your design. Mine was from a lamp with four 'heads' which had seen better days. The tripod design is foolproof-stability for motionless objects but with imagination and poetic license...



Edit: Thought I had a pic of the tripod with foot-cups and an oval, plastic body but seems to have misplaced the image.
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Well, it seemed like a good idea at the time...
Larcen
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« Reply #3 on: October 01, 2011, 12:31:21 am »

that has just given me an idea for a walking citadel, i must get drawing. . .anyway sadly im not as resorceful as you but i look forward to seeing the results it looks awesome all ready
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Dr cornelius quack
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« Reply #4 on: October 01, 2011, 12:35:58 am »

Oh!!? It's a vase!!

I thought it was some sort of multiple choice sample bottle.

Tactical tip.

Deploying ones battle tripod on the stairs leaves them vulnerable to strikes by suicide Slinkies.

Details of articulation required, you devilish cunning fellow, you.

Possible accessory for the Tiger season??

http://en.wikipedia.org/wiki/Howdah
« Last Edit: October 01, 2011, 01:29:45 am by Dr cornelius quack » Logged

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barb dwyer
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Same planet ~ different world


« Reply #5 on: October 01, 2011, 01:57:13 am »

I'll be looking forward to the development of this one -

and then to the stop-action animation
you can do with it
when it's done.

Thinking specifically maybe
something to the 'Start Wearing Purple' tune....

 Cheesy
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Drew P
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« Reply #6 on: October 01, 2011, 03:53:08 am »

Yes,yes,yes,Fantastic!

And...how do you articulate such wonders?

How I wish I just had more time to make just something-or shall I say...finish something Cry
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TVC15
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Extremely hazardous...have some?


« Reply #7 on: October 01, 2011, 03:58:20 am »

This is how he does it. Secret file downloaded. He is exposed!
Spoiler (click to show/hide)
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CacheForte
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« Reply #8 on: October 01, 2011, 04:02:10 am »

I was just pressing the post button, asking the same question about the articulation. Is it something you fab yourself, or is there some special doodad you can buy?
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von Corax
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Prof. Darwin Prætorius von Corax


« Reply #9 on: October 01, 2011, 05:54:32 am »

You've used those vases before!

Oh, wait — that's what you meant by "reliable," isn't it?
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Prof. Albrecht Von Taggërt
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« Reply #10 on: October 01, 2011, 10:06:12 am »

Watching this with great interest!
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« Reply #11 on: October 01, 2011, 12:13:00 pm »

Its funny you mention what the british empire might have made from alien tripods.

Let me drop this trailer here for your enjoyment.

http://www.wotw-goliath.com/video_trailer.html

Its a specifically steampunk animated sequel to War of the Worlds, where we have made our own tripods from the tech left behind, and use them to fight against a new wave of Martians.
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barb dwyer
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Same planet ~ different world


« Reply #12 on: October 01, 2011, 02:36:51 pm »

I know when it'd finish'd
it's going to be drop a jaw incredible-

right now,
(I've been back to look two more times)
I can almost hear
it's little feet making suction cup noises
when it walks around the house at night.

Only the Doktor and few others
could look at a box of vases
and say-

'hey - I could turn that into a three legged walking thingy'...

and then proceed to do so.


I'm trying to teach my mind to bend that direction. Roll Eyes
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Prof. Michael Masters
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« Reply #13 on: October 01, 2011, 08:50:17 pm »

Very interesting.

Herr Döktor I am curious, what do you do with all of your wonderful Creations once you are finished with them?
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Dr cornelius quack
Rogue Ætherlord
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Arrant Carney. Phmebian Cultural Attache.


« Reply #14 on: October 01, 2011, 09:39:28 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.
« Last Edit: October 01, 2011, 09:49:48 pm by Dr cornelius quack » Logged
Mr Peter Harrow, Esq
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« Reply #15 on: October 01, 2011, 09:50:42 pm »

He covets them in secret behind locked doors and drawn curtains, stroking them and calling them "my precious".

But then don't we all. Grin

A lot of makers not making things for a commission, make things to enjoy them. There is both the joy of making and the joy of ownership. It is always lovely to own something unique and beautiful, its even better if you have made it.

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Dr cornelius quack
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Arrant Carney. Phmebian Cultural Attache.


« Reply #16 on: October 01, 2011, 09:59:55 pm »

He covets them in secret.

The rest of us just covet them publicly.
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Mr Peter Harrow, Esq
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« Reply #17 on: October 01, 2011, 10:11:45 pm »

He covets them in secret.

The rest of us just covet them publicly.

Dr Quack, you have missed the first 'l' out of publicly. Unless of course this was what you mean't in the first place.
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Dr cornelius quack
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« Reply #18 on: October 01, 2011, 10:22:18 pm »

No I haven't.

I rarely make such a 'B*lls-up'.

Might I suggest you contact the 'D.N.A.'

The National Dyslectic Association.
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Mr Peter Harrow, Esq
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« Reply #19 on: October 01, 2011, 10:40:18 pm »

No I haven't.

I rarely make such a 'B*lls-up'.

Might I suggest you contact the 'D.N.A.'

The National Dyslectic Association.

Made you ook!
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Herr Döktor
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Herr Döktor, and friend.


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« Reply #20 on: October 01, 2011, 10:57:53 pm »

No I haven't.

I rarely make such a 'B*lls-up'.

Might I suggest you contact the 'D.N.A.'

The National Dyslectic Association.


Made you ook!


No, that's the 'Monkey Butlers: Steampunk or not?' thread!
« Last Edit: October 01, 2011, 11:29:04 pm by Herr Döktor » Logged
Herr Döktor
Gadgeteer, Contraptionist, and Inventor, FVSS
Moderator
Master Tinkerer
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Herr Döktor, and friend.


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« Reply #21 on: October 01, 2011, 11:30:15 pm »


So, some of you asked about the articulation, as a picture says a thousand words, here's some pictures:


The hips are ball joints, I heated up sheet styrene with a hot air gun, and push-moulded a section of hemisphere by pushing half a bauble into the hot plastic against the open end of a section of tube. A hole was cut into each moulding, and a 3mm bolt was fixed into each leg, with a washer cut from the waste from the hemispheres.


Using the same technique, I made the retainers from smaller mouldings taken from the first hemispheres, these were trimmed to be a few mm bigger than the holes, and fixed with a nut trapping two washers and a spring so that there would be enough friction to stop it from moving once positioned.


The joints on the feet were made in exactly the same way, but without the springs, as they don't really need them.


The knee joints are just hinges, with a piece of 4mm threaded rod going through them, with a brass domed bolt on each end, which also holds the spheres in place, the lower legs just slide up a length of tube, with a good enough fit not to fall off.

I *think* I've explained it clearly, if not do tell me!

Smiley
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Prof. Albrecht Von Taggërt
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« Reply #22 on: October 02, 2011, 02:20:55 am »

What is a "joint"??

 Grin

Looking awesome as usual Doktor!
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Cosmo Wipplegate
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« Reply #23 on: October 02, 2011, 04:54:58 am »

Wonderful!  Thank you for the step by step Doktor.  It is very informative.  I look forward to seeing this project progress.
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Steamworkshop
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« Reply #24 on: October 02, 2011, 06:34:24 am »

I can't wait to see this come together. I'm impressed with those ball joints in the main body.
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