Author Topic: Team FarSide  (Read 33620 times)

Offline haz

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Re: Team FarSide
« Reply #40 on: January 08, 2012, 08:44:21 AM »
eeeugh dx4e
shutta your gaping noise void woman!!

Offline R1885

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Re: Team FarSide
« Reply #41 on: January 08, 2012, 03:40:39 PM »
I has more cash :gawe: .
Would this motor work nice?
http://www.fingertechrobotics.com/proddetail.php?prod=tam72003 
This was once a part of VDD. Should I use it?

Offline haz

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Re: Team FarSide
« Reply #42 on: January 08, 2012, 03:49:02 PM »
looks terible
shutta your gaping noise void woman!!

Offline SKBT

Re: Team FarSide
« Reply #43 on: January 08, 2012, 04:58:20 PM »
There's a reason it's only $6, because it's crap. The cost of spares you'd blow through in a competition would equal or be more than a the cost of fingertech gold spark motors.

Offline R1885

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Re: Team FarSide
« Reply #44 on: January 08, 2012, 05:44:07 PM »
It's either that or the motors I have already.
Unless someone's willing to donate gear motors, I have no choice. I have very little cash in building terms.

Offline R1885

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Re: Team FarSide
« Reply #45 on: January 10, 2012, 11:53:11 AM »
I've done a total recalculation, here's the new parts list:
Motors: Kitbots 1000 RPM gear motors
Wheels: BaneBots 2-7/8 green wheels with hubs
ESC: Sabertooth 5
Battery: Rhino 11.1 volt 750 mAh
Charger: Poly Charge 1-3 cell
Radio: Spektrum(?) Dx4e with Hobbyking orange Rx
Any better from last time?

Offline SKBT

Re: Team FarSide
« Reply #46 on: January 10, 2012, 12:37:56 PM »
I'd personally use lite flites but that's just me...

Offline haz

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Re: Team FarSide
« Reply #47 on: January 10, 2012, 02:16:40 PM »
save up and get a dx5e
shutta your gaping noise void woman!!

Offline R1885

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Re: Team FarSide
« Reply #48 on: January 13, 2012, 10:00:17 PM »
At this point, I'm thinking of just getting a Viper Kit from FingerTec, after getting a cheapo charger and transmitter battery from robot market place to power it. Good idea?

Offline SKBT

Re: Team FarSide
« Reply #49 on: January 13, 2012, 10:05:40 PM »
The Viper isn't going to be competitive with it's chassis but if it's still selling for $110, its a steal, in terms of what you get out of it.

Offline R1885

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Re: Team FarSide
« Reply #50 on: January 19, 2012, 08:35:04 AM »
I have ordered a Viper Kit, and it will arrive hopefully in time for WAR.

Offline R1885

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Re: Team FarSide
« Reply #51 on: July 05, 2012, 11:43:39 PM »
So, long time no see.
Thanks to generous relatives, I now have 225 dollars to work with, so I decided to finally make a competitive antweight, and I have made a list of parts:
Drive: Four 33:1 FingerTech Silver Sparks
ESC: A pair of Tiny Esc V2s
Radio: Hobbyking 6 channel
Power: http://www.robotmarketplace.com/products/0-EFLB4303SJ.html
Charger: http://www.horizonhobby.com/products/DYN4101
Wheels: 2.5 inch Lite Flites w/ Finger tech hubs
Armor: 3/4 inch UWMH sides, 1/16 inch thick garrolite top and bottom plate
Weapon: .125 inch thick 7075 aluminum hinged wedge

Anyone see any problems?

Offline MikeNCR

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Re: Team FarSide
« Reply #52 on: July 06, 2012, 12:11:11 AM »
So, long time no see.
Thanks to generous relatives, I now have 225 dollars to work with, so I decided to finally make a competitive antweight, and I have made a list of parts:
Drive: Four 33:1 FingerTech Silver Sparks
ESC: A pair of Tiny Esc V2s
Radio: Hobbyking 6 channel
Power: http://www.robotmarketplace.com/products/0-EFLB4303SJ.html
Charger: http://www.horizonhobby.com/products/DYN4101
Wheels: 2.5 inch Lite Flites w/ Finger tech hubs
Armor: 3/4 inch UWMH sides, 1/16 inch thick garrolite top and bottom plate
Weapon: .125 inch thick 7075 aluminum hinged wedge

Anyone see any problems?

the 2.5" wheels with 33:1 sparks will make for a pretty big ant. On a 3s lipo I was running 1.75" lite flites with 22:1's and 1.125" lite flites(turned on a lathe because I do silly things with wheels) with 11:1 gearboxes and only one motor per side. If you drop the wheel size and gear ratio you'll be able to make the body a bit more compact and up the armor a bit.

I'd also suggest steel for the wedge if you have weight, the aluminum will get chewed up quickly.

Offline R1885

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Re: Team FarSide
« Reply #53 on: July 12, 2012, 12:00:59 AM »
I think I'm going to drop the silver sparks in my robot for now, WAY to much for right now, they eat up almost half of my budget. Does four 50:1 gold sparks sound good?

I also will drop the wheel size to 2 1/4 inches. Armor will still be 3/4 inch UWMH, and top and bottom will be 1/16 inch thick garolite. The wedge will now also be 1/8 thick hardened chrome-moly.

Should I move the wheels into my bot? Or should I keep the inside. I'm not sure, because I want to go to ComBots in October.

Also, should I drop the Original Sin hinged wedge, or go with a static wedge and risk other wedges get under me?

Offline MikeNCR

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Re: Team FarSide
« Reply #54 on: July 12, 2012, 08:46:13 AM »
I think I'm going to drop the silver sparks in my robot for now, WAY to much for right now, they eat up almost half of my budget. Does four 50:1 gold sparks sound good?

I also will drop the wheel size to 2 1/4 inches. Armor will still be 3/4 inch UWMH, and top and bottom will be 1/16 inch thick garolite. The wedge will now also be 1/8 thick hardened chrome-moly.

Should I move the wheels into my bot? Or should I keep the inside. I'm not sure, because I want to go to ComBots in October.

Also, should I drop the Original Sin hinged wedge, or go with a static wedge and risk other wedges get under me?

There's not a ton of weight difference between the silver and gold sparks, and in my experience, the silver sparks hold up to combat much better than the golds.

It sounds like you've got a lot more armor than you'll likely need, which is eating up a bunch of the weight. With Kobalos, I had a 3/32" thick unhardened steel wedge and while it got scuffed and gouged, nothing ever got through it. The 3/4" UHMW is also probably a good bit more than you'll need.

Internal vs. external wheels is a tough choice. Internal wheels will be better protected, but you'll also have a better chance of getting immobilized or wedged into a position where you don't have as much or any traction. Gilbert ( http://www.buildersdb.com/botdetails.asp?eventid=352&BotID=6703 ) is one of the better examples of the general type of robot you're going for,  so it may be worth looking at some of what was done with that bot.

Offline SKBT

Re: Team FarSide
« Reply #55 on: July 12, 2012, 09:27:50 AM »
3/4" uhmw is more than enough for a 30... Realistically you can go as thin as 3/8" and still hold a screw fine. 1/8" chromoly is really thick and heavy. Did you check your weight yet? I can't see how you are going to cram everything in for less than 1lb. I just did some rough estimates and came up with about 16 oz spent on the frame, wedge, and top/bottom armor.

You are also going to be on the large and slow side with the wheels and motors you want to use (about 1mph on 3s) You would be fine with 4 11:1 sparks and 2 1/4" wheels (about 5mph on 3s).

Math:  [(motor output rpm) * (wheel dia) / 366] = speed of robot in mph

It would almost be cheaper to switch building a 3 and using kitbots 1000rpm motors with two botbitz6 esc's

Offline R1885

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Re: Team FarSide
« Reply #56 on: July 12, 2012, 11:29:41 AM »
I see what you guys mean.
I never knew about botbitz, I'll have to go there more often.
What I meant by "don't have the budget for the motors" I meant the price of the motors. I think I will drop the sides thickness to 1/8 inch. I'm not using the sides to hold the screws, I'm using kitbots nut strips.
Yeah, that wedge thickness is massive over kill. So I'm dropping to 1/16 thick. I'm keeping the Garolite thickness, though.
...You can tell that I studied big robots more than small ones.

Offline SKBT

Re: Team FarSide
« Reply #57 on: July 12, 2012, 11:37:37 AM »
1/8" uhmw is kinda... uh... flexible... 1/4" is about as think as you can go while keeping *some* rigidity.

Kitbots 1000rpms are $12 and silver sparks are $24. 4 tiny esc's are going to run you $134. two Botbitz6's are $34 plus shipping.

Offline R1885

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Re: Team FarSide
« Reply #58 on: July 12, 2012, 10:57:23 PM »

Offline MikeNCR

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Re: Team FarSide
« Reply #59 on: July 12, 2012, 11:06:25 PM »
Hey, is this a good price? I want to replace my cheap ass Hobby King Radio.
http://www.ebay.com/itm/Spektrum-Dx6i-6-Channel-2-4ghz-Dsm2-/110914521091?pt=Radio_Control_Vehicles&hash=item19d3054803

Yeah, probably too good a price. I'd expect it to end up between $75 and $125 by the time the auction ends. I currently have two, one for my non wedge bots, and another that's my girlfriends.