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 Building / Mecha / 13548
13547  |  13549
Subject: 
Re: Mr. Jeeves
Newsgroups: 
lugnet.build.mecha
Date: 
Tue, 20 Dec 2005 10:21:06 GMT
Viewed: 
1735 times
  
Hi,
When you say mana cat - were you using the bionacle "manas" parts? Or
was it just a name? I had some fun trying to incorporate them into a
robot as extra powered motors for the RCX.

The joints are all posable with worm gears arent they? I had a thought
last night on a "compliant" worm gear based joint - which involved
fixing the gear onto an axle, and allowing a housing assembly around
the axle to move a little with a technic suspension - thus giving a
joint a little compliance, which still springs back to the desired
position when the force comes off. The alternative I had (which is a
great deal more "human") was to use elastic-band tendons, and then
have a set of two (or four using long pins) technic pulleys - either
side of 2 pins - so a contraction would mean reeling in (winding up)
the elastic band between the pulleys. The pulleys would probably be
best driven by a high reduction system with a worm gear, and maybe a
clutch to ensure that the thing stops before the band snaps. I may
design an arm - and later a whole mech based on that...

The prop housings - the yellow parts are most definately from the
yellow technic sub - I have a couple. I have seen them in red too.
Take a look here http://www.peeron.com/inv/parts/2745 - they are
available in grey from the X-Wing fighter.

Is the ball joint one of these : http://www.peeron.com/inv/parts/44359?

I think the socket on Mr Jeeves is http://www.peeron.com/inv/parts/44358.

I am always interested in socket/ball joints - and larger ones more
so. Maybe we will see more of these in the coming lego mech series.
Anyway - I think it looks good, thanks for posting them eric.

Danny
--
Danny Staple MBCS
OrionRobots
http://orionrobots.co.uk
(Full contact details available through website)

On 20/12/05, Eric Sophie <mylegomaster@aol.com> wrote:
In lugnet.build.mecha, danny staple <orionrobots@gmail.com> wrote:

Now all we need to do is figure out hwo to add motors and get a couple
of RCX's on board, and you too can have a lego aibo...

Getting the motors installed is not too difficult. I'd like to try it
sometime.
When I built the Mana Cat, I was kind of going for that.

But the legs were built wrong and the only motorized elements were the Mana.
A fully articulated quadra-ped would be nice. I need more z40's.

It looks good eric. What peices are you using at the ankle joints?
http://www.brickshelf.com/cgi-bin/gallery.cgi?i=710824 - I can see
prop housings, and some kind of ball peice in them - I think - and i
am not quite sure what I am looking at there.. They are different
again on Mr Jeeves. Peeron links please!

Oh no! Not the parts refs!
I'm not that good with that, hahahaha, let's see.

The ankles are ball sockets from Star Wars sets. The yellow parts that
surround
the ankles are from Aquazone sets?

Or was that from the Yellow Technic Sub?

I'll have to go look them up. I wish I had a set in gray for Mr. Jeeves.
While planning the build, I knew these were parts I could not add.

Glad you liked the build. Thank you!

e

Danny
--
Danny Staple MBCS
OrionRobots
http://orionrobots.co.uk
(Full contact details available through website)





Message has 1 Reply:
  Re: Mr. Jeeves
 
(...) Good morning. (yawn) ahhh, yes, the Mana Cat, yes Manas. (URL) coffe. Um, ya, the Mana Cat was suxxor. Incorrect lower legs, trouble with the neck area. Really hit some brick walls. hahaha brick walls. Slayer. I did walk away with some cool (...) (19 years ago, 20-Dec-05, to lugnet.build.mecha)

Message is in Reply To:
  Re: Mr. Jeeves
 
(...) Getting the motors installed is not too difficult. I'd like to try it sometime. When I built the Mana Cat, I was kind of going for that. But the legs were built wrong and the only motorized elements were the Mana. A fully articulated (...) (19 years ago, 20-Dec-05, to lugnet.build.mecha)

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