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Twisted Constructions
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miles&Jules
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Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD


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So are you building a 3d printer? It that it on the floor of you computer room?
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

Post Fri Apr 22, 2011 6:33 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Yep its now a lot more complete than that.
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Fri Apr 22, 2011 7:52 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Well time to put my money where my mouth is and try out some of my controllers in my own bot.
I rebuilt most of the wEdge bot the sarv. It will be my first platform for the feather event I am also hoping to have a flipper as well. For the moment we shall refer to it as naked turtle (have you ever seen a naked turtle?)

wEdge bot will be using a 2in1 Tz85a (if I can get this to work) and will be running a 6S A123 battery.
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Tue Apr 26, 2011 8:24 pm 
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miles&Jules
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Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD


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Ha ha that would be so cool, if you can get the 2in1 going!
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

Post Tue Apr 26, 2011 11:02 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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wEdge bot has a wedge and is pretty well ready to run as long as it gets a ESC. I have plenty of sabertooths lying around if it comes to it.

I am still thinking about ways to setup this flipper. I need to program a relay controller for triggering the solenoid which shouldn't be a problem and I need to sort out the battery I want to use for it. I am thinking I will need at least 6S to trigger solenoid but I am also considering a separate battery for drives and weapon.

Pictures laters
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Sat Apr 30, 2011 5:56 pm 
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marto
Experienced Roboteer


Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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New Ant! - Budget Bot mini.

Small scale nostalgia.



Now with blade and armour its 130g. Also it does not really drive very well need to look into speed modding these servos.

And scorpy rebuild is complete. Its not new style still waiting on a few bits and pieces but am starting to use up all the kitbot parts I have around.


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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Mon May 02, 2011 6:20 pm 
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Spockie-Tech
Site Admin


Joined: 31 May 2004
Posts: 3160
Location: Melbourne, Australia


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Heh, I see a Gorilla-Pod in that picture. Smile

Like it ? I found ours to be very useful for getting that perfect close up angle shot and occasionally sticking the camera to things up high
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Great minds discuss ideas. Average minds discuss events. Small minds discuss people

Post Mon May 02, 2011 6:38 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Yeh its been handy I just grabbed two cheapys and they arent really stiff enough to hold anything big. I grabbed 2 as they were like $3 and then taped them together. One holds the iphone and the other holds it up.

Steve
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Mon May 02, 2011 8:49 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Yay ordered plastic for 3D printer. Hopefully here by friday.
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Wed May 04, 2011 12:04 pm 
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miles&Jules
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Joined: 19 May 2010
Posts: 3973
Location: ipswich QLD


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Hey Steve ,we probably got a full size tripod you can have. it would be lame but fine for documenting like this.
M&J
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Miles Blow - Julie Pitts
www.mulesfilm.com.au
www.wombokforest.com.au

-Pickasso- Vivid Sportsman champion 2015

Post Wed May 04, 2011 12:30 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Ok so I finally worked out how I am going to do naked turtle.

Firstly it will still be a low pressure flipper however it will be running a R134a propellant. This is a non-flammable HFC which is used in airhorns. I had tossed up using butane and making it a flame thrower as well but this will just cause too many issues.

The pressure of R134a is ~90psi - 150psi depending on temperature. Which unfortunately takes me a bit out of the range of coke bottle but will be fine with fire extinguisher reservoir.

The can is about $20 and 300grams so should get me an event. Just grabbed one off ebay.
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Fri May 06, 2011 2:13 pm 
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Jaemus
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Joined: 01 Apr 2009
Posts: 2674
Location: NSW


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wow, you can just buy cans of R134a on ebay?

The stuff the fridges my work sells uses is R500 isobutane Smile very flammable Razz
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<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

Post Fri May 06, 2011 2:57 pm 
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marto
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Joined: 08 Jul 2004
Posts: 5459
Location: Brisbane, QLD


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Yes you can. You can buy it for air horns for marine or safetly applications.

AFAIK its just not widely used as its a greenhouse gas. But I doubt my robot will contribute much to global warming.
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Steven Martin
Twisted Constructions
http://www.botbitz.com

Post Fri May 06, 2011 3:55 pm 
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Jaemus
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Joined: 01 Apr 2009
Posts: 2674
Location: NSW


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i kinda like that it's contributing in some way though

its more manly somehow - like a car with an excessively large engine
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<Patrician|Away> what does your robot do, sam
<bovril> it collects data about the surrounding environment, then discards it and drives into walls

Post Fri May 06, 2011 4:35 pm 
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Philip
Experienced Roboteer


Joined: 18 Jun 2004
Posts: 3842
Location: Queensland near Brisbane


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You could also try a smaller CO2 cylinder in Naked Turtle.

That would fit your idea of making the robot smaller. You could also use a much smaller reservoir to save volume in the robot. You only need 2.5 - 3 times the volume of the ram displacement.
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So even the rain that falls isn't actually going to fill our dams and our river systems

Post Sun May 08, 2011 7:06 am 
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