On an unrelated note, Id change the name as Crash has already been used.
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On an unrelated note, Id change the name as Crash has already been used.
ok, thaks guys
for a name how about CRoOkEd
it will be a box wedge
the size of the co2 tank is 1.2kg
ok, the new chassis is made out of 6mm mild steel
btw dimensions are...
1m long, 0.4m wide and 0.4m tall at the back
(Message edited by Team_Orr on August 14, 2008)
(Message edited by Team_Orr on August 14, 2008)
40cm is a bit on the narrow side Jack, the 2 magmotors by them selves are already that wide. try somewhere between 65 and 80cm, thats a lot closer.
Co2 is measures in kg, not liters. but I get the point.
If I were you, but that is up to you of course, I would switch from 2 rams of 110mm, to 1 ram of 110mm. that is still 5 tonnes of force (more than Gravity 3) and with the weight you save you could fit a 2kg bottle in there.
ok thanks leo
i will switch from 0.4 to 0.75
i will have 1 ram now and fit a 2kg bottle instead
blimey, 5 TONNES of force! guess ill get a few ootas then,
jack
Jack, to be honest, 5000kg of force is WAY too much. Vapours tend to aim somewhere around the 1000kg-1500kg mark, as it gives suitible power without blowing ram clean off.
I think a ram produced 3500kg of force.
To tone it down, you do the sum
maximum force divided by the force you want = the ratio to give your flipper.
No Paul, the ram produces 5 tonnes (110mm). What he gets on the tip of the flipper is what the ratio, as you point out, will be (as in where along the flipperarm you place the ram).
I have to say though 5 tons of force at the ram is something else then 5 tons of force at the tip of the flipper Paul...
damn, Leo beat me to it...
(Message edited by MajinB on August 14, 2008)
Paul! Friend! I am so going to make your day.
http://www.robotgames.nl/images/nitrogene.jpghttp://www.robotgames.nl/images/nitrogene.jpg
Guess what, it will be a tight for for batteries and you will need to play with the hinges a little, but with a 1.2kg bottle it will fit.
Hooray! Thanks Leo! About the batteries, would 120x 3000mAh NiCad cells producing 12amps suffice 2 MagMotors?
Paul, yes they would. Barely, but yes.
In response to this battery thing, see my new topic, i think this could help all of us.
Something which might be worth pointing out on Knyfe
Height - 220mm (22cm)
motors - Lem 200s which have a diameter of 205.3mm (taken from http://www.lemcoltd.com/downloads_pdf/lmc_200_motor_assembly.pdfhttp://www.lemcoltd.com/downloads_pd...r_assembly.pdf so Lem 200s should really be called Lem 205s)
Top armour - 6mm Hardox
Bottom armour - 4mm titanium
Which gives a total height of 215.3mm assuming there is no gap between motor and armour panel
Ground clearance - 8mm, so in my mind thats the gap between the body and the ground, so doubling that to give 16mm, gives a total height of 231.3mm, 11.3mm taller than what says in the stats (again assuming that the 4cm rubber is just on the sides).
Also:
LOCOMOTION: 6 Vulkanised Wheels.
So the entire wheel including hub is vulkanised rubber?
Dave, about the wheels youre being pedantic :lame:
And its now 25cm in height :lame:
No, hes being serious. How do you expect to move with wheels made completely out of rubber? :P You have to state otherwise, or people will take what you say in the stats. :P
What, I sometimes do research into stuff :lame:
But you might want to write in your stats that the wheel hubs are steel or something, and another thing worth mentioning is how the wheels are driven (as I kinda assumed they were chain driven with the motors between the rear 2 sets of wheels
FFS! First I have to stat batteries, but thanks to Leo thats OK - but do we NOW have to be SO petty that we need to state if something is belt or chain driven. You were stating in another thread that all the fun is being taken away...be careful what you say. :proud:
quote:
how do you expect to move with wheels made completeley out of rubber
It has been done before with solid rubber wheels, its just not really the best use of weight :proud:
Paul, just say they are aluminium with a vulkanized rubber thread, thats fine.
As for belt or chain driven, both is just as good (or bad). I prefer planetary gears or spurgear drives anyway.
Are titanium hubs a tad too heavy, Leo?
7075 Aluminium hubs are twice the strength of stainless steel already. You could use Ti but what would be the point? Its just more weight to hold a piece of rubber in place.
All right, thanks for the advice.
Hows this?
http://strickenone.proboards99.com/index.cgi?board=teamww&action=display&thread=352http://strickenone.proboards99.com/i...isplay&thread= 352
Id love to help out but I am having a serious blond moment here. :)
Would it be possible to build a vapour walker (200kg in weight) with 4 legs, each using two short, low pressure pneumatic rams 9one for up/down movement, one for left/right movement), or would it just require so much gas it would be overweight?
Ive toyed with that idea myself and although in theory it would work it was too complex for my liking. Too many valves, too many variables.
However, with a 5kg tank and small enough double acting rams like 16mm @ 10 bars for instance, yes it could work. And it would beyond a shadow of a doubt be a true walker.
Dont ask me how the steering would work though, I completely threw my towel in the ring when I came to that stage. :)
It may take a while, but Im going to give this a try, since its only vapours. Basically, no one nick my idea while I try and get it to work! :proud:
Nice to know there is some originality still around. :)
Dont worry, Liam, I dont do shufflers/walkers anymore. The last one I did was in the 2002 era, Junkyard Maw. Yall remember how well it did it in PTT3 pinball. :proud: And it actually won a round. :proud: What possessed Steve to have it win something, I dont know. :proud:
Just re-checked my notes, 16mm was radius, not diameter. Told you I had a blond moment. :)
Robot Name: The Subjugator
Shape: Box with skirts all the way around
Weight: 200kg
Length: 90cm
Width: 90cm
Height: 35cm
Motivation/Drive: 4 x hardox legs with vulkalon rubber feet, they are each actuated by two 10 bar 16mm pneumatic rams from a 5kg tank, they are not visible as they are internal
Armour: 5mm titanium on top, 5mm titanium (then space for the legs) and 4mm hardox on sides and 1mm polypropylene base
Weaponry: A Son of Whyachi style tri-bar made of steel, but instead of the hammers it has tungsten claws that each weigh 11kg, and with the bars it weighs a total of 45kg. It is spun by a LEM-200 at 48v (Kj output and spin up temporarily unconfirmed)
Speed: ???
Turning Circle: In the centre of the robot€™s base armour there is a 20cm x 20cm circular section that extends to below the robot via another 10 bar ram, but this one is 400mm and takes the gas from its own 1.1kg bottle, once on the ground the circular piece of armour rotates in the direction which I want the robot to go via a Bosch 750 watt motor at 12v
Ground Clearance: 20mm all round, protected by 7mm titanium torsion sprung skirts, held together at the corner s by 5mm hardox hinges
Srimech: None, but it is hard to get under
Colour: Silver cage, black bodywork and the name in white on the front, sides and back
Strengths: Twice the weight of most opponents
Weaknesses: No srimech
If not 16mm, what would you suggest?
Oh, sorry, 16mm radius means 32mm diameter, my bad.
Mkay, is the turning mechanism feasible? Also what speeds do you think it could reach?
(Message edited by Swim2win on August 15, 2008)
its absolutely feasible to turn that way, but not very quick. What I am more worried about is what that huge triangle spinning frame does while you wobble across the floor. :)
About the speed I cant make any predictions since that involves length of leg and the swing angle.
Maybe Ill change the weapon, I have other evil plans
Wouldnt linear actuators be better than co2 pistons?
In what way?
The use of actuators vs pneumatics is always a careful deliberation.
In terms of simplicity, actuators would be better.
However in terms of speed, weight, and oddly enough durability the pneumatic ram would be in an advantage.
Both methods are not wrong. In fact the most famous true walker I know, Mechadon, uses actuators. However in this application I would prefer to use co2 because of speed and weight.
(Message edited by leorcc on August 16, 2008)
Do you think I could get about 6-8mph?
I should guess so, but there is no way for me to know for sure. Most quadropeds I know are small and they are pretty quick but I cant give you a number on how quick exactly.
How does the weaponry work on robots like Stinger and Weeliwako (RW3, Heat A, it beat Brimhur then lost to Mace II)? It is counted as passive weaponry, but all that happens is the motors stop, so surely the appendage in the middle would just lie there?
hi
since CroOKeD went down quite well i have decided to make 2 more vapours
the 1st
Name:Boxx
Shape: box, lol
number of wheels: 4 go-cart wheels
Drive: 2 wheelchair motors with chain drive to power the other 2 wheels
Armor: 10mm polycarb on the sides, 8mm hardox on the back, a wedge made out of 7mm ti on the front and 7mm ti on the top
Chassis: 10mm hardox
Weight: 98kgs
Ground clearance: 0mm at the front,2mm at the back and 2mm at the sides
Dimensions: 1m long, 0.75m wide and 0.3m high
Weapons: pusher
Top speed: 5mph
batteries: 2 12v sealed-lead-acid wired in series
Weakness: when flipped over it has a high ground clearance at the front
Strength: good pushing power, ivertable
the 2nd
Name: pick-axe of doom
Shape: box wedge
number of wheels: 2 go-cart wheels
Drive: 2 wheelchair motors
Armor: 9mm polycarb for the front/back, 7mm polycarb on the top and 8mm ti on the sides
Chassis: 8mm mild steel
Weapon: 5mm steel tubing(0.6m long) with a 8mm ti axe head(10cm long)powered by a 2kg c02 tank at 750psi with 1 100mm ram
Dimensions: 0.9m long, 0.75m wide and 0.5m high at the back
Top speed: 5mph
Ground clearance: 0mm at the front 2mm at the back and 2mm at the sides
Batteries: 2 12v sealed-lead-acid wired in seires
Weakness: easy to hit with other axes
Strength: can self right with the axe
any comments
jack
I suppose its time I pitched in in this thread:
Name:Boxx
Shape: box, lol
A little vague - try to give an idea of which dimensions are bigger, either a picture or dimensions is whats needed here.
number of wheels: 4 go-cart wheels
Drive: 2 wheelchair motors with chain drive to power the other 2 wheels
So its direct drive but with extra chains to power the secodn wheels? Youd probably be better off with a skid steer system as youd get better controll and the gearing would give you more power.
Armor: 10mm polycarb on the sides, 8mm hardox on the back, a wedge made out of 7mm ti on the front and 7mm ti on the top
Very odd armour distribution there, as a general rule, the back of a robot will need the least armour because hopefully thats not the end that your opponent will be at. Plus 8mm hardox is probably too heavy. If you still want all three hardox on the front, titanium on the sides, polycarb on the back would make more sense.
Chassis: 10mm hardox
Also kind of vague, and if you have chunky hardox as well will be a bit heavy, titanium would probably be better here.
Weight: 98kgs
Ground clearance: 0mm at the front,2mm at the back and 2mm at the sides
Dimensions: 1m long, 0.75m wide and 0.3m high
Weapons: pusher
Id advise at least havign a few static spikes - they really do make rammers more effective. Incidentally those motors are really not up to scratch for a rammer.
Top speed: 5mph
Too slow for a rammer, youll get easily outmanouvered.
batteries: 2 12v sealed-lead-acid wired in series
Ill leave this to someone who can tell you what you DO need, but considering most heavies opperate at 24-48v this isnt enough I dont think, again, particularly for a rammer
.
Weakness: when flipped over it has a high ground clearance at the front
Strength: good pushing power, invertable
You need to mention the invertibleness before this
Hey Jack, this is something ALEX wrote in the Beginners Guide. If you havent already read it, do. :)This should help with what to put in your stats. For Boxxs motors, I suggest LEM-130s at 36v, or LEM-200s up to 60v, but LEM-200s are heavy so you may need to thin the armour or make it smaller. Like Alex said static spikes or a wedge would help, and for batteries I recommend NiCad battlepacks or A123s
Name:
- Whatever you want it to be, as long as it€™s not offensive and not already taken (either by a real robot or existing vapourbot).
Weight:
- 100kg is the standard, however, other movement mechanisms sometimes get different bonuses. The common ones are: Walkers - 150kg/200kg, Tracks - 110kg, Shufflers: 120kg/150kg. Note that the term shuffler may vary between writers in interpretation, so check.
Shape:
- Whatever you want it to be, just describe it as best you can. A picture usually helps.
Wheels/Motivation:
- Describe in detail wheels, tracks, walking mechanism or anything else you come up with. The more detail you give the better idea the writer will have about what you are imagining, talk about materials, widths, and any special features.
Motors:
- What motors you use and what voltage they run at. Remember they have to be real life components. If you don€™t know what motors to use look in the €˜How Could I Improve€™ Thread, or ask anyone.
Speed:
- Is a pretty obvious one - the faster a machine is the harder to control it will generally be, the slower it is the easier to out manoeuvre. As a guideline, staying between 8mph and 16mph will suit most needs.
Turning circle:
- This will almost always be 0m, however a few robots with more exotic drive systems may vary.
Armour:
- Armour is pretty self explanatory - pick a material and give a thickness for the most basic armour stats, however, you may want to have different materials and/or thicknesses in different parts of the robot. Also if you want to talk about the chassis, that should go here. If you are unsure what material suits your purpose and how much you can fit in, ask someone.
Ground clearance:
- The difference between the bottom of the robots main body and the ground, generally this measures between 3mm and 1cm. If you had no ground clearance you wouldn€™t be able to move, but the higher it is the easier to get under. If you have an axlebot or an externally tracked bot then you done really need to give this stat. Also, €˜skirts€™ should be listed here - essentially pieces of metal that sit against the ground to prevent an opponent getting under so easily - make sure to list what they are made of and how thick they are.
Srimech
- AKA self righting mechanism - essentially how does your robot recover from being flipped over, can it€™s weapon right it or does it have a specific mechanism for doing so.
Weapons:
- Generally the €˜big€™ one, you can use anything you can think of as long as it follows the normal rules (no chemicals, no untethered projectiles etc) Be realistic, generally the more weight you give to a weapon the more powerful you can make it but the more you sacrifice elsewhere in your design. You can have as many weapons as you want, but the more you have the less weight you€™ll be able to use for each and the weaker they€™ll be. However, remember that your own weapon will feed back into your robot - so you better be able to withstand the impact as much as your opponent!
Additionally some writers may ask for strengths/weaknesses and dimensions, but usually these are optional.