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Off-Topic => Real Robotics => Real Robotics Discussion => Topic started by: drgn006 on June 05, 2009, 08:01:20 AM

Title: Heavyweight Robot (220 lbs)
Post by: drgn006 on June 05, 2009, 08:01:20 AM
Going to build a heavyweight. What do you think would be good for a frame? 1/2" square tube steel? 1" square tube steel.... 2" square tube? I plan to use 3/8" steel as a wedge/rammer in the front. Is that enough?

What about size? Right now it will be about 8" tall, 48" long, 35" wide. 4 wheels 10.0" each (1" ground clearance).

As far as a drive system, I plan to use sprockets to gear down 4x NPC-2446 (About 3 hp total). This thing would be very fast, since these motors won't be geared down much (Pretty much as little as possible). I am actually a bit concerned that this is not enough power in the drivetrain. I've considered 4 of the NPC-1200... even 2 of the Black Maxs. The S28-150 is also something I'm considering.

As far as voltage, I've been thinking 36V, NiMh.

Appreciate any feedback.

Thanks!
Title: Heavyweight Robot (220 lbs)
Post by: R1885 on June 05, 2009, 09:44:03 AM
Your at the wrong place to ask.
Title: Heavyweight Robot (220 lbs)
Post by: Reier on June 05, 2009, 09:49:12 AM
Forum? }=|
And drgn006, I suggest talking to MikeNCR.
Title: Heavyweight Robot (220 lbs)
Post by: drgn006 on June 09, 2009, 01:39:01 PM
Update: Decided on a middleweight, 2 motors, 4 wheels. Frame with tires is about 45 lbs. Using 1" welded square steel tube, 10" rubber tires with custom steel hubs. Using sprockets and chain for the drivetrain. 2x 12V NiMh for 24V 3300mAh. 3/8" steel "plow" for a weapon. Haven't decided on the top/bottom/side armor. Most likely steel or 7075 aluminum.

I'll take what I learn from this to build the heavyweight for battlebots. Maybe they'll allow middleweights in the next one... I won't hold my breath.

Would appreciate any feedback from real builders...
Title: Heavyweight Robot (220 lbs)
Post by: roboman2444 on June 09, 2009, 02:42:12 PM
i only build insect class.
If you plan to weld the aurmor on, use steel.
Title: Heavyweight Robot (220 lbs)
Post by: R0B0SH4RK on June 16, 2009, 03:39:02 PM
Hmmm... French spambots.










I blame Naryar.
Title: Heavyweight Robot (220 lbs)
Post by: Reier on June 16, 2009, 03:42:21 PM
ermm





gtg >>
Title: Heavyweight Robot (220 lbs)
Post by: Naryar on June 16, 2009, 04:03:47 PM
Keep your blaming for the next time i'll out-wedge you.
Title: Heavyweight Robot (220 lbs)
Post by: 090901 on September 18, 2009, 07:47:26 PM
Quote from: dep595er;67098
khoo (http://khoo.baidu.ws/)yuer (http://yuer.baidu.ws/)tch (http://tch.baidu.ws/)thai (http://thai.baidu.ws/)miir (http://miir.baidu.ws/)


Spambot, great, really great. //sarcasm
Title: Heavyweight Robot (220 lbs)
Post by: MikeNCR on September 18, 2009, 08:14:59 PM
Look at the book linked in this thread: https://gametechmods.com/forums/showthread.php?t=2480

Read it.

Understand it.
Title: Heavyweight Robot (220 lbs)
Post by: roboman2444 on September 18, 2009, 08:30:10 PM
Quote from: dep595er;67098
khoo (http://khoo.baidu.ws/)yuer (http://yuer.baidu.ws/)tch (http://tch.baidu.ws/)thai (http://thai.baidu.ws/)miir (http://miir.baidu.ws/)
spambot!


i would personally recomend this book also
http://www.amazon.com/Building-Bots-Designing-Warrior-Robots/dp/1556524595/ref=sr_1_1?ie=UTF8&s=books&qid=1253323730&sr=1-1

includes alot of stuff about pneumatics and hydrolics, also.
also a great physics book :)
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