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Off-Topic => Real Robotics => Real Robotics Discussion => Topic started by: drgn006 on March 11, 2009, 11:38:05 PM

Title: Antweight Building Guide
Post by: drgn006 on March 11, 2009, 11:38:05 PM: First off, here are some proven weapons/designs. In order of easiest to build, to hardest.

Weapon System

Pusher (Perfect for beginners)
Wedge (Perfect for beginners)
Blade (Ok for talented beginners)
Undercutter (Not recommended unless you have experience)
Drum (Difficult)
Eggbeater (Very Difficult)

That's pretty much it. You're taking a chance with anything else. Not to say it can't be done, but you better have the experience before you try to pull it off.

Weapon Motors

Pusher: N/A
Wedge: N/A
Blade: Brushed, 2:1, 3:1, 4:1 Gearing - Brushless: Direct Drive, 2:1, 3:1
Undercutter: Brushless: Direct Drive, 2:1, 3:1
Drum: Brushless: Direct Drive, 2:1
Eggbeater: Brushless: 1:1, 2:1

Drive Motors
Pusher: Banebots 16mm 38:1
Wedge: Banebots 16mm 11:1, 24:1, Maxon 17:1
Blade: Banebots 16mm 24:1, Maxon 17:1
Undercutter: Banebots 16mm 11:1, 24:1, Maxon 17:1
Drum: Banebots 16mm 11:1, 24:1, Maxon 17:1
Eggbeater: Banebots 16mm 24:1, Maxon 17:1

Wheel Hubs: In order from best to worst
Dave's Hubs
Banebots Hubs
Prop Adapter
Mini Aluminum Hub

Wheels: In order from best to worst
LiteFlites: Non Lectra
Banebots

Things Not to Use/Do
Copal Motors
Plastic Wheels such as Tamiya 70145, 70111
Plastic Gearboxes
Tank Treads such as 70108
Single Set Screws on Weapons
Set Screws without thread lock
6v or less batteries

Quality Armor Materials
Delrin Plastic
UHMW Polyethylene
Garolite CE, G11
ABS Plastic
Polycarbonate Lexan
Carbon Fiber
7075 Aluminum

Quality Weapon Materials
S7 Steel
Titanium

Safety
Even at home, use proper power on/off procedures. You should still use weapon locks, and sharp edge covers.
Do not power up the robot around other people, even if you are sure the weapon is off. The robot could be damaged, you could get interference, or many other factors.
Do not stay in the same room as the robot while testing. If one thing goes wrong, you could get seriously injured.

Resources
http://www.robotmarketplace.com
http://www.banebots.com
http://www.mcmaster.com
http://www.sdp-si.com
http://www.hobby-lobby.com
http://www.towerhobbies.com
http://www.buildersdb.com
http://www.teamwhyachi.com

Have questions? I'd be happy to help.
Title: Antweight Building Guide
Post by: Urjak on March 11, 2009, 11:42:02 PM: Not bad, not bad at all.
Title: Antweight Building Guide
Post by: drgn006 on March 11, 2009, 11:48:25 PM: Also, I think I've found a stable source of maxons, so I will PM it to you upon request. I'd prefer to keep it with as few people as possible until I'm sure it's not going to dry up fast.
Title: Antweight Building Guide
Post by: Somebody on March 12, 2009, 06:11:12 AM: Are maxons hard to come by?
Title: Antweight Building Guide
Post by: MikeNCR on March 12, 2009, 06:31:07 AM: 17:1's aren't

http://www.fingertechrobotics.com/proddetail.php?prod=mp-13017

Also, one of the Brazilian teams put together a great combat robot tutorial for all weight classes. You can get it here: http://www.robocore.net/tutorial
Title: Antweight Building Guide
Post by: drgn006 on March 12, 2009, 03:20:50 PM: Quote from: MikeNCR;30745
17:1's aren't

http://www.fingertechrobotics.com/proddetail.php?prod=mp-13017

Also, one of the Brazilian teams put together a great combat robot tutorial for all weight classes. You can get it here: http://www.robocore.net/tutorial

I heard from someone that this wasn't a reliable source, is that true?
Title: Antweight Building Guide
Post by: zipdragon64 on March 13, 2009, 06:32:18 PM: i would like to add pololu 35:1 motors to the drive systems there pretty go little motors
Title: Antweight Building Guide
Post by: System32 on March 13, 2009, 07:33:41 PM: What about VS?
Title: Antweight Building Guide
Post by: zipdragon64 on March 13, 2009, 09:10:53 PM: i think thats what he means by "blade" but idk
Title: Antweight Building Guide
Post by: drgn006 on March 15, 2009, 05:06:10 AM: Quote from: System32;30822
What about VS?

I haven't seen non-bladed vertical spinners do well.
Title: Antweight Building Guide
Post by: drgn006 on March 15, 2009, 05:09:17 AM: Quote from: zipdragon64;30816
i would like to add pololu 35:1 motors to the drive systems there pretty go little motors

Never heard of them, how do they work for you? Where do you get them?
Title: Antweight Building Guide
Post by: zipdragon64 on March 15, 2009, 08:13:10 PM: http://www.pololu.com/catalog/product/1091

they're pretty good little motors, much better then banebots 16mms, i've had so much trouble with bb's there just not worth the money
Title: Antweight Building Guide
Post by: roboman2444 on April 07, 2009, 05:14:20 PM: Some copals are bad. the 50/1 can get lots of dust and shavings in them. The 60/1 are the best. They are quite small and fairly cheep. I have had good success with the 60/1 copals on my robot MTF2. Look at it on my website below.
Title: Antweight Building Guide
Post by: drgn006 on June 09, 2009, 01:29:00 PM: Quote from: roboman2444;33360
Some copals are bad. the 50/1 can get lots of dust and shavings in them. The 60/1 are the best. They are quite small and fairly cheep. I have had good success with the 60/1 copals on my robot MTF2. Look at it on my website below.

Are you kidding? The 60:1 copals are some of the worst motors I've found for ants. They'll take two hits if you're lucky. I've seen the whole gearbox ripped out with the wheel in a single hit on a brand new motor. The 50:1s are slightly better, but I still wouldn't use them. This is with foam tires, no less.
Title: Antweight Building Guide
Post by: roboman2444 on June 09, 2009, 02:44:36 PM: that is if you mount them by the motor and not the gearbox.