I need help with this robot i'm designing nothing is certain but i would love to keep the same shape and would like some some help many thanks :) :)
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I need help with this robot i'm designing nothing is certain but i would love to keep the same shape and would like some some help many thanks :) :)
Hi there.
You would have to be alot more specific with exactly what help you're in need of.
What weight class robot?
Do you need help with the weapon, wiring up electronics, where to get materials to build it?
Please explain as much as you possibly can and I bet you will get several good answers to help you get it done! :)
stick this in the 'weight appropriate' section will get noticed more
Well i'm planning to make it a featherweight or at least something as cheap as possible i think i'll be okay with the weapon because after some consideration I've planned on giving it flippers or at the very least lifters and i'm not sure about the wiring thanks in advance.Quote:
Originally Posted by gizz
Will do thanks for the adviceQuote:
Originally Posted by psycho_fling
I have redesigned the robot and have wondered if it would work it would have no weapons. (the white holes would be for the wheels)
Hi
I dont think this design would work very well, to have a double wedge shape like this you will need very large wheels, some sizes would be good, give everybody some idea of what your trying to do.
DaveMac.
I'm hoping to make it a bit of a rammer bot that is cheap to build
Making it flat on top instead of it coming to a point might be an easier option as far as getting wheels is concerned. Also, might make it a bit more stable and effective when it is running upside down.
Would this be good?
Design looking better, try measuring everything up using 80mm or 100mm wheels, see how it looks, then think of how you are going to drive the wheels, figure out where the other components are going.
DaveMac.
Its a similar design to the UK champions so I reckon it has been proven fairly well. Nice and simple to put together too.
Thank you for your help do you have any idea what it would cost if it could be as cheap as possible?
Also do you guys think it would work if I made the sides flippers?
Hello mate,
For how much it would cost, I often do the same, as little as possible is best. Do you have any bits such as radio gear, that is one of the more expensive bits really, but a lot less than it used to be I am sure. Also, depends what you would like to make it from, for example wood would be cheap and fairly easy to get hold of and work with. Plastic is also fairly easy to work with but a bit more expensive then metals would start costing you more and of course the stronger the metal you use, the harder is it is work with (in general).
For the flippers part, what I would suggest is maybe doing it without the flippers then maybe add them later when you've been to a few events/got a bit more experience? Maybe then if you attend a few events you could have a talk with some of the other guys who run featherweight flippers.
Personally, I always prefer to see things working in the flesh so maybe getting a push/ram bot working and going to some events would be good? If you're not too bothered about seeing it work, there are guys on here who could help you with the pneumatics part, sadly, I am not one of them.
Thank you and I currently have no parts and is my first robot so i will stick to the ramming element. I also would like to use some sort of cheap plastic as I soul be able to use equiptment at my school so tools should be fine but I would like to ge my own I'd possible
*If possible
Not a problem mate, a few months ago I was asking the same questions as you. Good to keep it simple on a first build.
If you're just using plastics theres no real specialised tools, just a hand drill and jigsaw with a plastic or metal bit.
For plastics, the one we're building now is RG1000 (some people prefer Nylon) for the main structure and HDPE for the armour from directplasticsonline.co.uk.
Radio gear, the radio I started using was Planet 5 which is about £45, may be cheaper in certain stores. Or alternatively look in the wanted section for other roboteers selling second hand gear.
Motors, I use drills from Argos, as many people on here do and recommend http://www.argos.co.uk/static/Product/p ... EDRILL.htm and there are a few ways of modifying them kicking about on here, if you decide to go that way I will post how its done for you, just let me know.
Wheels, www.robochallenge.co.uk wheels fit right on to the end of the drill thread once the drill part is removed and it makes life much easier for you.
Speed Controllers (ESC's) are possibly one of the more expensive things you would need. I usually use electronize ones, but there are a variety of them out there that I will write about when I am not about to fall asleep... if no one beats me to it that is.
Hopefully that will get you started anyway :D. Don't be afraid to give me a shout if you want to ask anything else.
Tony
Quote:
Originally Posted by Anttazz
For the main structure RG1000 probably 15mm-ish much less than than and it wont really stand up to anything. For the HDPE something like 6-8mm should do it.
Remote control cars tend to use something like 27MHz - 40MHz which isn't going to be allowed (I think i'm right in saying) pretty soon. 2.4GHz will make life a lot simpler for you I would suggest.
Sorry I thought I put the bit about the wheels in, must've deleted it for some reason. Its the one with nut inserts, which diameter will depend on your design and also larger wheels will increase speed and decrease control, in general, but you don't want to buy a set of wheels that don't touch the ground.
Would it be ok to use rods for the chassis?
I wouldn't, better using the sheets. The way the guy does it in this video is what I would suggest if you're going to use plastic
http://www.youtube.com/watch?v=9ibaEOpYPAg
Also could you help with a name?
Just added up costs and would be about £170 wow
Where did you get those costings from, and also what is that including?
Remember that the £45 - 50 for the radio stuff is one off i.e. you will use it on any future projects.
Some of my bots don't have names yet, but maybe it will come to you during the build process.
build the bot first then worry about the name
dont worry, i got all the parts for my bot and it cost me 140 quid too build the whole thing!Quote:
Originally Posted by gchachanidze
(it was only so cheap because all the body armor etc has been from spare plasic and aluminium)
It includes :Quote:
Originally Posted by Anttazz
plastic for frame £20.09
plastic for armour £9.22
2 drills for motors £20.40
wheels 100mm £14.30
speed controler £39.75
radio set £45.00
My sister came up with the name flipside do you guys think its good?
add about another 20 to 30 quid to that total to include nuts and bolts, wiring, connectors, LED etc and remember that stuff ordered over the net has delivery added as well.
all together approximately £200 thats quite a lot :|
what speed controler are you planning to use?
i'm planning on using electronize ones
I hate to say it, but it's really not in the world of robotic combat. Although it's A LOT cheaper now than it used to be. When I started a half decent transmitter cost 100 quid plus. Start gathering the parts one at a time and gradually over time you will be able to build it up. Keep a look out in the for sale section for second hand parts that may be of use to you.
If you're using Electronize controllers, that price you've mentioned of £39.75 sounds like the cost of one controller. With Electronize units you will need two controllers (one for each side of drive on your robot) so the chances are that your speed controller price will more likely be around £79.50, plus P&P. At that price it may be worth contemplating getting a dual speed controller (one controller but controls both drive motors) as the Scorpion XL and the Sabretooth 2x25 are both roughly £80 and offer more precise control.
£200 can seem quite a lot when your funds are small, but that is the average price of an entry level featherweight.
Just to make you aware, there is a transmitter/receiver combo that offers four channels of control for £27, making it a cheaper option than the £45 one you listed. Take a look at: http://www.giantcod.co.uk/gianitcod-24g ... 03779.html
And yeah as Gary said, be prepared to spend more than you possibly anticipated buying all the little bits and pieces. Bolts, LEDs, wire, connectors and so on really do add up when you're on a budget so keep an eye on that. In addition to the delivery costs, a lot of websites list their prices without VAT (and then the VAT-inclusive price in smaller text and/or brackets next to that) so that can add an unexpected few pounds onto the cost of items if you initially overlook that.
You haven't mentioned batteries in your list of things that you will be having to buy either. You could use this drill ones, at least for now.
I think there is a tutorial on how to do that here: http://www.rampagingchariots.org.uk/abo ... out-us.php
Well, that is a photo of a way it can be done but there are manuals in the construction section on how they have done it.
You can always revert to wood, nails and sticky tape if it all gets too expensive haha
do not mock the use of wood in robots :) or gaffa tape for that :rofl:
Slightly off-topic: I've always liked the simplistic design of the Rampaging Chariots robots, but that modified one (bottom picture in the link Tony provided) is immense! Still simple, but it looks so cool 8)
Haha I wasn't mocking it, just reminding George that I had mentioned it as a possibility earlier that would bring the cost down a bit.
I do like that bottom Rampaging Chariot on that page, shows what you can do with a nice simple design. Looks like they may have spent more time on the aesthetics than they did building the rest of it. I'm trying to convince some of the local BB companies as well as primary & secondary schools around here to get involved with it, I know I would have loved that when I was at school.
I can still remember when we were first developing those kits once we decided to retire from combat robots :)
I've just read through most of the construction guide on the site; http://www.rampagingchariots.org.uk/con ... l-2009.pdf
It's like a smaller scale version of the Riobotz tutorial, but for basic featherweight-esque robots. Good clear explanations of what the parts are, why they're used, how to do things and so on. Doesn't cover as many topics as the Riobotz book because, well, because it doesn't need to, but could be handy for any new featherweight builders who don't really know where to start.