Lynxmotion Tech Support

First Run..

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Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk/
Create, Innovate, Inspire.

HaHa.. you took some time finaly..

Wow.. simply amazing..
Even for a first run it's very nice.

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

Ill start playing with the arduino later when i get back home. Ill run a few more RC tests first though.

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Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk/
Create, Innovate, Inspire.

TEST PART 2!

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Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk/
Create, Innovate, Inspire.

Great work! Love the movement.

Should get lots of attention!

Kurt

Holy Crap man. That looks awesome.

How well is a dimension held on those 3d printed parts. Did you have yours 'polished'? I've got a part that would be too much hassle to cast and I'm looking at using shapeways.

The head does move very nicely..
Now we have to do some Arduino Programming to have sequence... !!

"Kurte" any info for that.. lol

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

Thanks guys,
Still yet waiting for the new head and eyelid mech but its getting there.

Marcham:
the parts not not polished. the reason i didnt go for polished is that i found it can shrink the parts slightly. and on the ball joints that wouldnt be good.

the parts are pretty exact to the dimensions i put in. cannot fault Shapeways one bit.
not sure that polished is a porous as "non polished".
I dyed the pull cases my self to save cost.

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Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk/
Create, Innovate, Inspire.

So what's the big deal? Bet it still tastes like chicken!

Having it born out of one of Zenta's MorphHexes, now that would be a big deal.

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Ted, RoboTed
Never quite finishing means never having to admit failure!

I am assuming that you will still be using an SSC-32 to control the servos? If so it makes life much easier to do sequences as storing sequences on the Arduino you can take a couple of different approaches.
1) Try to store to EEPROM on Arduno, but this has issues:
a) Very small EEPROM on the Atmega chip (1K for 328s and 4K on megas) and by default it is erased each time you program the chip.
b) You need code to do this... I do have some VB code and code like this that I used to store sequences on Arc32 and other...
c) You need custom code to run the sequence. I have code for other platforms that does this.
2) Store the sequences in code. Other platform saves sequences to header file that you compile in. Again issues.
a) Limited code space. On Atmega328, maybe 30K
b) Need the code to do this. I do for other hex...

Now assuming you have SSC-32, you need to generate the sequences (I am not much help here ), and download them to SSC-32 using the standard ways you have done it in the past. Then you need code to run the sequences, which can be very simple, just simply output the string to run the sequence once. Or our later hexapod code allowed you to control the speed and direction the sequence ran, by using input from the Ps2 or DIY controller... I recently added this support to the Arduino Hexapods. I believe all of this code is up on my GITHUB sources and/or in the Zip file I uploaded as part of the refactoring...

Probably a bit longer of an answer than you were asking for

Kurt

Awesome!
Great to see it in action. I'm amazed to see how well the pull-pull system work. Also, the 3D parts are just perfect!
I'm wondering, is there much play/backlash in the pull/pull system?

Like Kurt said. Using the GP player is a great tool for sequences, especially long and complex sequences.

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[b]Kåre Halvorsen, Zenta[/b]
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Zenta's blog
http://zentasrobots.com/
Zenta's YouTube channel
http://www.youtube.com/ZentaOlbaid
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Was looking to use a ProMini alone (well on my shield).
It would be autonomus with random moving sequences.

With my so little knowledge in programming... i made some code.

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Eric Nantel
Qc Canada

Always liked Robot... Now i am learning to make some...! Wonderfull...

The cables are pulled tight to make sure it gets every part of rotation pulling as it should ' although i have noticed that even with the cables tight there is backlash. This is due to the tubes that house the cables.
Iv used 0.6mm and 1mm cables.. The ID of the tubes in nearly 3mm and so the cables get slack during some rotations.

Using the right ID tubes is critical for precise actions.
Will apply this discipline next time.

_________________
Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk/
Create, Innovate, Inspire.

Thank you Kurt for your input. Yes that would be a very good option but ill not be using the ssc as Eric has pointed out.
The code will work on very simple and basic routines. Ill build up a command code inputting very simple servo commands, and string it all together from the moment power is applied.
Even if the routines are not called up randomly Im not concerned. Along as i manage a long enough string of commands at least it shouldn't look repetitive.

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Jonny Poole,
Freelance Concept Art & Animatronics, 3D Art and 3D Modelling, as well as Physical Modelling, Mechanical design, and illustration.
http://www.innerbreed.co.uk/
Create, Innovate, Inspire.

Sounds Good,

Let me know if you need any help. Your projects always sound like fun!

Kurt

P.S. - Forgot to ask, which Arduino are you using? Probably mentioned somewhere in the thread... For the Megas I do have what I call my ServoEx library, which has some of the timed move capabilities like the SSC-32. i.e. you can say start a group move, move these servos to their new location and do it in N milliseconds...