KNEX robot. plase help :)
I saw the BOE-bot and I wondered how can I make my own robot. I decided on a tank made of knex. It all went well (see the pics) and I decided to have wiskers because they're cheap rather than ir (I live in NZ.) Then I had the idea of making it roam for a while then it would stop and wait for someone to walk past then BAM they would be shot by a rubberband. I can make the launcher alright but then how do I trigger it?
I have 1 servo to use and can't buy more ($49.00 NZ) any ideas on triggering would be handy.
Here is the only place I can buy parts (DSE New Zealand www.dse.co.nz/cgi-bin/dse.storefront
Micro
I have 1 servo to use and can't buy more ($49.00 NZ) any ideas on triggering would be handy.
Here is the only place I can buy parts (DSE New Zealand www.dse.co.nz/cgi-bin/dse.storefront
Micro
Comments
A servo may have enough force to open a clothes pin. You will have to experiment with it.
The bigger problem will be getting the robot to "see" that there is something to shoot at, and to "pull the trigger" at the right time. Maybe you could remotely trigger it by shinning a light on one of the CDs cells that came with the Parallax "Robotics" kit. The IR sensor can only see about one foot out which is a little close for shooting a rubber band at someone.
Micro
·· If you had gone with IR sensing you'd have what you need.· But with whiskers, you're out of luck unless someone bumps into the front of it.
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Chris Savage
Parallax Tech Support
csavage@parallax.com
DSE is the wrong place to get some things in NZ. Check with our distributor:
E-Source Ltd.
Auckland
Phone: Intl: +64211929950
Fax: Intl +64 9 521 3832
Web: http://www.esource.co.nz/
Email: sales@esource.co.nz
Mike Wake can take care of you. Considering we sell Futaba S-148 servos for $10 US, I'm certain they can't cost more than $25-30NZ once they've made their way over the pond. And you also will need a wireless sensor like IR or perhaps our new PING))). Ask him about those - heck, we nearly give them to our distributors so you can have them for a reasonable cost like our American customers. If you find that the costs are still high, then e-mail sales@parallax.com and ask them for a USPS quote on the items you would like to have.
I think DSE sells a Stamp for a good 40% higher than us, even taking into consideration the exchange rate. By the way, is there a microcontroller on this robot or are you trying to do this entirely with switches and logic?
Ken
2 X DC motors for drive systems (They're modified knex motors)
1 X BS2 homework board
For direction control I'm using 8 transistors (2 X H-Bridges)
and I want to have whiskers for navigating, IR/CdS for person detection
What I need help with is
A) Triggering the gun (Rubberband Gun)
Any help would be good,
Micro
Who is Mike Wake?
And can you give me his email?
The H-Bridge for direction control isn't going too well but thats no problem
The pics Are cool but I want to stick with knex although yours looks better
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Ben Damon
And may God Bless America!
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so it isn't really 'modified just had new wires'
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rockybulwinkle2004@sbcglobal.net
On second thought I don't need it to be mobile. Hey anyone know how to sense people with stuff that isn't too expensive
form this site DickSmith Electronics
Thanks heaps guys espcially Knex_Master
Microman171
PS The Signature of mine didnt come out so I'm going to change it
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Post Edited (Microman171) : 6/19/2005 8:17:28 AM GMT
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Mike Wake is our distributor in New Zealand.· Here is his information:
NEW ZEALAND
E-Source Ltd.
Auckland
Phone: Intl: +64211929950·
Fax: Intl +64 9 521 3832
Web: http://www.esource.co.nz/
Email: sales@esource.co.nz Dave
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Dave Andreae
Tech Support
dandreae@parallax.com
www.parallax.com
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Great job on both
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Ben Damon
And may God Bless America!
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Ben Damon
And may God Bless America!
Just yeasterday I won a large box of knex on ebay for 5.50, plus 6.00 shipping. Hopfully it will have something to work with.... I'll problebly order your sejestion as well. thanx _Duane