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First build-Team Terra-QLD
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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First build-Team Terra-QLD

ok so i have started to think about some bot designs and i have some cool ideas i think but first i think i need to focus on the functionality of my bot i have watched the tutorials on how to use cordless drill motors and i think i can do that pretty easy, then i noticed in my back shed i have a couple of indoor fans that i dont use any more do you think i could use the motors from these or maby there wouldn't be enough torque what does everyone think.

Post Sat May 23, 2015 10:20 am 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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file:///C:/Users/corey/Pictures/Camera%20Roll/WIN_20150523_102426.JPG
i cant work ouit how to add a picture so i hope this works

Post Sat May 23, 2015 10:26 am 
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marto
Experienced Roboteer


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


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You will need to upload a picture to some internet sharing thing. Then you can use the img tag. Its a bit shit but I think aaron has done a tutorial somewhere.

http://robowars.org/forum/viewtopic.php?t=934

Bit outdated but should get you started. I use dropbox or photobucket but that got a bit crappy after Microsoft bought it.

Look forward to seeing bots.

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

Post Sat May 23, 2015 10:53 am 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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http://imgur.com/hGz0mL4
hey guys these are the motors i was thinking about using there are from and indoor fan what are everyone's thoughts?[/url]

Post Sat May 23, 2015 11:05 am 
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marto
Experienced Roboteer


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


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On imgur there is a button called embed codes. If you pick the BB code one you can actually put the pic embedded. See below



As for the motors I reckon they would need some sort of gearing. Car fan motors used to be a prime candidate for a weapon motor back in the day. Although indoor fans are they 240V or 12V?

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

Post Sat May 23, 2015 11:11 am 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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im really new to all this so thank you for your help they are 240v but to be honest im not sure what that means and what do you mean by gearing
Sorry if im wasting your time i should probly do some research

Post Sat May 23, 2015 11:23 am 
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maddox



Joined: 21 Dec 2006
Posts: 786
Location: Belgium


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240V meant 240 volt, or home main power, AC. Not useable in our machines.

Gearing. Most motors have a high rpm and low torque. You can exchange rpm and torque by gearing the setup.

For example. Most batteriedrills use a planetary gearbox of about 20-1 (some 16-1, others 36-1), meaning the motor RPM is divided by 20, and torque multiplied by 20.

And we're willing to give the information if asked in a pleasant or fun way.

Post Sat May 23, 2015 11:30 am 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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Oh right thats why when i hooked it up to a batteries nothing happened haha thank you very much i might go buy some cordless drills
i was thinking for my weapon either a flipper or a spiner what would you recommend for a beginner

Post Sat May 23, 2015 11:47 am 
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maddox



Joined: 21 Dec 2006
Posts: 786
Location: Belgium


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For a starter on a low budget, a ramming box or wedge. Just to get the experience.

For me, it was easy to go for a flipper , as I had experience from the heavies and the tools to make full custom setups.



Now I'm trying spinners. And it seems to be a problem to get those reliable.

Post Sat May 23, 2015 12:02 pm 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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ok are these allowed to compete in the nats in October because at the moment that is my goal to be ready in time?for a flipper is a pneumatic piston the best way to go does hobby king or bot bits sell these?

Post Sat May 23, 2015 12:11 pm 
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Nick
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Joined: 16 Jun 2004
Posts: 11802
Location: Sydney, NSW


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You will have to get the pneumatic ram from eBay or an engineering shop.
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Post Sat May 23, 2015 12:36 pm 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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Could someone please direct me to the bot requirement for competing or even just outlie them for me thanks guys you have all been very helpfull

Post Sat May 23, 2015 12:40 pm 
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Daniel
Experienced Roboteer


Joined: 30 Aug 2005
Posts: 2729
Location: Gold Coast


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I've recently started collecting pneumatic parts for a new hammer robot. Here's some on the parts that I've got:

Pneumatic Ram, 40mm bore 100mm stroke = US$10.70 http://www.aliexpress.com/item/1X-FREE-SHIPPING-40mm-Bore-100mm-Stroke-G1-4-SC40-100-Standard-Pneumatic-Air-Cylinder-Model/616463458.html

5/2 solenoid valve = US$2.50 (Yep, you read that right Cool ) http://www.aliexpress.com/item/1-4-2-Position-5-Port-AirTAC-Air-Solenoid-Valves-4V210-08-Pneumatic-Control-Valve-4v21008/901029312.html

Quick Exhaust Valves = $2.25 http://www.aliexpress.com/item/Pneumatic-QE-02-1-4-One-Way-Air-Quick-Exhaust-Valve-In-Out-1-4-Exhaust/32264919536.html

Some push fittings = US$8 for 10, but they guy threw in some extras http://www.aliexpress.com/item/PC-08-R1-4-Male-Straight-Connector-For-8mm-Tubing-1-4-Thread-Pneumatic-Fitting/1483125502.html

Tubing = US$0.20 per meter http://www.aliexpress.com/item/High-Quality-Pneumatic-Hose-PU-Tube-OD-8MM-ID-5MM-Plastic-Flexible-Pipe-PU8-5-Polyurethane/1351232593.html

Paintball regulator = US$30 http://www.aliexpress.com/item/High-Quality-Pneumatic-Hose-PU-Tube-OD-8MM-ID-5MM-Plastic-Flexible-Pipe-PU8-5-Polyurethane/1351232593.html

Paintball CO2 tanks are a bit harder to find cheaply

Post Sat May 23, 2015 8:11 pm 
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RedKnight



Joined: 22 May 2015
Posts: 35
Location: Townsville QLD


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thanks mate thats a big help ill have to do some research on how to put it all together
i did a few sketches last night still cant decide on a flipper or a ramming bot

Post Sun May 24, 2015 8:54 am 
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seanet1310



Joined: 08 Nov 2006
Posts: 1265
Location: Adelaide


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quote:
Originally posted by RedKnight:
Could someone please direct me to the bot requirement for competing or even just outlie them for me thanks guys you have all been very helpfull


Compliant with the rules. Controlled motion is a must. Ability to failsafe if transmitter signal is lost (typically done in the electronic speed controller), a power light, ability to power on robot without opening it up (switch or removable link is typically the way) and within the weight limit.

Last time I checked (it has been a while) we used the RFL rules as a basis for the nationals. No flame weapons or internal combustion engines. The main division is the 13.6kg featherweight. If you have a moving weapon there must be a way to lock it safely from activating in the pits. (The sportsman bit apples to the NSW Vivid event next week)

http://botleague.info/rules.php
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Post Sun May 24, 2015 5:00 pm 
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