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Messages - RedSawn

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441
Challenge Board / Re: Kid_Krusher13 vs "The Cool Kids"
« on: January 18, 2013, 08:17:15 AM »
What are the rules of this challenge I must ask?

442
Tournament Archives / Re: RA2Olympics: Lillehammer/Signups OPEN!!!
« on: January 17, 2013, 01:40:22 PM »
I got a LW wired, smartzoned and ready to be binded. Still considering options for a second entry, though there's a MW on the sidelines. Will send them both at the same time if so be.

443
DSL TC Showcases / Re: Red's Robotic Hall of Lame - DSL Edition
« on: January 16, 2013, 05:18:12 PM »
Red's Golden Rule of Bot Building: If you like a robot, build it a weight class smaller.


The X-Terminator knockoff returns as a LW, probably more suited as a IRL DSL bot than it's MW brother. Cheatbot2'd for the red extender again to act as one of those rotating warning lights. Still beats some of the standard DSL AI, though that's because it's a hammer bot. Not as stable as the MW, but it only rocks slightly when firing.

444
Tournament Archives / Re: RA2Olympics: Lillehammer/Signups OPEN!!!
« on: January 15, 2013, 06:28:45 AM »
I'll put some things together and see if I've got anything good enough to enter.

445
Off-Topic Discussion / Re: New Vette
« on: January 15, 2013, 04:14:06 AM »
It makes me think of an Italian supercar. Where's that needlessly bulky, relatively straightforward but monsterous look of the American muscle car? Or am I thinking too much of the Charger and other icons?

446
Off-Topic Discussion / Re: GTM Awards 2012 - VOTING OPEN!
« on: December 29, 2012, 06:52:09 AM »
I'm kind of holding off from voting since I only have a week or so to go by.

447
Real Robotics Discussion / Re: Thinking my options through
« on: December 29, 2012, 06:45:05 AM »
Sure, I just can't find any videos of 150g robots that don't look like they use servo motors. I am of the mind that the videos I am finding are of older competitions and robots where the micro geared motors were not as widely used (Apparently).

My shopping list so far, then:
x4 50:1 Micro Geared Motor HP - http://www.pololu.com/catalog/product/998/specs
x4 Lite Flite Wheel 2pk (1.5 inch or 1.75 inch diameter depending on robot height) - http://www.robotmarketplace.com/products/0-DAV5517.html or http://www.robotmarketplace.com/products/0-DAV5515.html
x4 Lite Flite Hub - http://www.robotmarketplace.com/products/0-FT-LITE-HUBS.html
x4 Micro Metal Gearmotor Bracket - http://www.robotmarketplace.com/products/0-PL989.html
x2 tinyESC v2 Speed Controller - http://www.fingertechrobotics.com/proddetail.php?prod=ft-tinyESCv2
7.4v E-Flite 200mAh Battery - http://www.modellbauuk.com/e-flite-200mah-battery-for-mig-306-p.asp
All in all about £110 and 93~96 grams. Seems like quite a lot of weight to have left, though this doesn't include the body.

To consider:
OrangeRx R610 Spektrum DSM2 6Ch 2.4Ghz Receiver - http://www.hobbyking.com/hobbyking/store/__11965__OrangeRx_R610_Spektrum_DSM2_6Ch_2_4Ghz_Receiver_w_Sat_Port_.html
500x250mm sheet of HDPE (Not sure about thickness) - http://www.directplasticsonline.co.uk/HDPESheet/Natural/

Things I already have:
Spektrum DX6i TX
Spektrum Dx5e TX (Yes, turns out my dad has one of these too, and I assume the included RX would be somewhere too)

448
Off-Topic Discussion / Re: Post your Christmas gifts!
« on: December 25, 2012, 04:01:06 PM »
cool beans, you like any other power metal bands?

I've been keeping an eye on Dragonland, Kamelot, Iron Mask, Iron Savior, Ravenheart, At Vance, Majesty... there are probably others I am forgetting.

449
Off-Topic Discussion / Re: Post your Christmas gifts!
« on: December 25, 2012, 03:12:44 PM »
- Shirts
- Socks
- Electric Trimmer
- £25 iTunes Gift Card (Which is inactive for some reason and I have to get iTunes support on it)
- 5 Iced Earth albums (Dystopia and the Box of the Wicked set which has Framing Armageddon, Crucible of Man, I Walk Among You (EP) and Overture of the Wicked (EP))

There may be more coming, those were gifts from direct family and my grandparents.

450
Real Robotics Discussion / Re: Thinking my options through
« on: December 25, 2012, 12:48:36 PM »
Sounds like it'll be onboard mixing. Surely can't be that much weight difference, right?

I'm curious as to how these motors will control now. I've been looking for videos of other 150g bots and all I can seemingly find is servo drive, unless I am mistaken about other drive motors at this level.

EDIT: I'm eying this battery as a power source. http://www.modellbauuk.com/e-flite-200mah-battery-for-mig-306-p.asp Light, within the voltage range of the motors and will theorically last 30 minutes in use (400ma current total from the four motors, maybe it'll be more on a bigger voltage so maybe I need a 350maH). I can't find a better option.
EDIT2: http://www.google.co.uk/shopping/product/17294855120760941065?q=7.4v%20300mah%20lipo%20battery&ie=UTF-8&oe=UTF-8&hl=en&client=safari&sa=X&ei=ekzaUIOiNoWJ0AX0koEg&ved=0CDcQ8wIwAA#hsec:overview 300maH 7.4v E-Flite in the case of needing a tad higher capacity.

451
Real Robotics Discussion / Re: Thinking my options through
« on: December 22, 2012, 06:58:57 PM »
Yeah, since I'm getting all of the technical stuff and such out of the way before I even think of buying the parts I'm going to need to know how to before I can consider the Tiny Escs, or anything for that matter.

452
Real Robotics Discussion / Re: Thinking my options through
« on: December 21, 2012, 06:23:08 PM »
The problem with them would be that you would need 2 to drive 4 motors, which then brings up the problem of mixing (which can be done on the DX6i if you're willing to mess with the settings but is still a pain in the neck).

That doesn't sound like something I can manage. Seems I'm still with the Sabertooth but isn't there a speed controller that can handle 4 motors that doesn't weigh over a tenth of my weight limit? I'm still not sure what battery I'll need but what I can tell that'll be a significant chunk of weight too, and it feels like it is adding up.

453
Real Robotics Discussion / Re: Thinking my options through
« on: December 21, 2012, 01:43:26 PM »
Convenient link since I actually had to poke around: http://www.fingertechrobotics.com/proddetail.php?prod=ft-tinyESCv2
You weren't kidding when you said those were lightweight. Would I need to do anything to them other then hook it up to everything? I.E is it combat ready out of the box or must I do something?

454
Existing Games / Re: Junkbot
« on: December 20, 2012, 06:25:24 PM »
Not the full version [of Lego Racers], I mean the online mini games they used.

Drome Racing Challenge was the shiz.
I had Lego Drome Racers for the GBA, but i lost it. That game was awesome.

That's too bad. I got the PC version of it, passable even if it was the standard 'racing game with weapon powerups!' affair.

455
Existing Games / Re: Junkbot
« on: December 20, 2012, 06:15:37 PM »
Not the full version [of Lego Racers], I mean the online mini games they used.

Drome Racing Challenge was the shiz.

456
Real Robotics Discussion / Re: Thinking my options through
« on: December 20, 2012, 05:38:50 PM »
Aaaah x) Well yeah, I only need one bot for now.

So I have the drivetrain, what about the power, speed controller and whatnot?
http://www.robotmarketplace.com/products/0-SABER2X5-RC.html I'm only really aware of the Sabertooth 2X5 for a speed controller and that seems a bit heavy for UK ants/US fairys.

http://www.hobbyking.com/hobbyking/store/__11965__OrangeRx_R610_Spektrum_DSM2_6Ch_2_4Ghz_Receiver_w_Sat_Port_.html Glad to see OrangeRx was mentioned. Super lightweight 2.4 receiver compatible with Spektrum transmitters that costs just under $6? Bloody heck.

EDIT: When I searched for the Spektrum Dx5e I knew it looked familiar, and lo behold, it (kinda) did. It turns out my dad's model aeroplane uses the Spektrum DX6i ( http://www.spektrumrc.com/Products/Default.aspx?ProdID=SPM6600 ). Since he basically never uses it I may of scored a free TX. There'll be no issues using it, right?

457
Real Robotics Discussion / Re: Thinking my options through
« on: December 20, 2012, 03:21:13 PM »
Well I'm based out of Kent, and I'll consider places as they come up.

Naturally, though it hinged on the simplicity of fixating the plate/wedge/scoop. It looks like the wedge on your bot is held on by the four large screws, which doesn't look particularly taxing to take off and put back on.

458
Real Robotics Discussion / Re: Thinking my options through
« on: December 20, 2012, 12:47:15 PM »
Oh x)

Sure, it'd still go fast and it'd have the pushing power too. Now I need light enough batteries to power the motors. And a speed controller.

I was turned off from the wedge because we'd literally have the same bot! Just you have Lego wheels and whatnot.
It does bring up an interesting thought though - perhaps the front could be interchangeable, a flat plate of armor or a wedge. Hell, maybe even a scoop. If it's designed to be as simple as undoing a few screws here and there, ofcourse.

459
Real Robotics Discussion / Re: Thinking my options through
« on: December 20, 2012, 11:38:15 AM »
1000:1 30:1s? Confusing x) Odd how they supposedly weigh significantly different. They're still 10 grams, shouldn't cause too many problems.



This is where I am now, a fast and agile 4WD box rammer/pusher with a tough front end to go head-on with whatever. A box will make for a simple first build.
It's probably in my best interests to go with the smaller micro motors in that case. Anyhow, here's a list of all three different powers of the 30:1 and 50:1 micros. It's hard to really say anything because every site has different readings for the capabilities of the motor, and the only thing they can agree on is the dimensions and weight.
Low Power 30:1 http://www.pololu.com/catalog/product/993/specs
Medium Power 30:1 http://www.pololu.com/catalog/product/2364/specs
High Power 30:1 http://www.pololu.com/catalog/product/1093/specs

Low Power 50:1 http://www.pololu.com/catalog/product/1098/specs
Medium Power 50:1 http://www.pololu.com/catalog/product/2365/specs
High Power 50:1 http://www.pololu.com/catalog/product/998/specs

It seems I must decide among these, baring in mind the motors, wheels and hubs will take up 69.44 grams though a bit less with 1.5" inch wheels, that I'll need to find and fit a battery in there suitable for the total current of whichever motors I use, and these choices must allow for the speed controller and shell of the bot :s I really have no idea what all of this is going to weigh.

460
Real Robotics Discussion / Re: Thinking my options through
« on: December 20, 2012, 03:20:28 AM »
If the speed and agility would be comparable to a Rotax Max kart I've experienced something with such ludicrous speed first hand x) I've raced RC cars and 80 mph karts indoors and outdoors at varying levels. Nothing with tank steering, but it's not like I'm going at it with absolutely no experience.

It is a pretty slim chance, yeah, true.

EDIT: I found out that when I was referring to 1000 RPM I was thinking of the 1050 RPM 35:1 Micro Geared motors, the big ones currently intended for the 2WD concept.
Anyway, I was looking at the 50:1 motors on the Robot Marketplace.
http://www.robotmarketplace.com/products/0-GM11A.html 56:1 Micro Geared. 7.8 grams, 480 free run RPM. Would replace the 4WD motors well; they actually weigh .4 grams less but are the same size, draw nearly the same current, almost runs at the same RPM as the 30:1s (which are actually 500 rpm) but apparently has 58% more torque. Seems like a good tradeoff if you ask me.


EDIT2: I have now also found high power versions of the 30:1 and 50:1 micro motors. The current is higher across the board but performance is significantly improved.
http://www.pololu.com/catalog/product/1093/specs 30:1
http://www.pololu.com/catalog/product/998/specs 50:1

EDIT3: I have realized I got myself confused. There are two "30:1 Micro Geared Motors" in the Robot Marketplace store. One says it does 1000 RPM and the other does not (500 RPM). I must assume one of them is the HP version but unmarked as being such.

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