/diy/ builds a 60 pound combat robot, lets go >what weapons

Spinner for maximum pleb

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just make a little one of these

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Make this.

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>>968077

>>968072

Horizontal or vertical?

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>>968070
in the 60 pound range, the best bang for buck is a drum bot

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>>968070
Wedgebot always wins. Few weak points, armor has optimal angles to deflect blows, lowest possible center of gravity, primary weapon is also a self righting mechanism, simple (no complicated impact sensitive parts), easy to control.

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>>968080
just needs one of these hanging off it

>>968083
boring af tho >:[

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>>968082
>>968083

>>968085
Boring is often the best engineering design, especially for a simple problem. If there were more detailed requirements and more restrictions then you might need innovation.

/diy/ is at, a vertical drum w/wedge

any other ideas?

Just flip them out of the arena.

http://youtu.be/NQFgmJWFRAE

>>968092
drums can flip bots out of the arena

>>968092
Wedgebots FTW

>>968092

also pneumatics are too hard

>>968092
i feel bad for them :[

>>968070
http://members.toast.net/joerger/AskAaron/design.html

>>968070
The problem I have with robot wars is the lack of weapons actually allowed..

No projectiles. No entanglement. No acids/alkalines. Often enough weight restrictions.

And it always comes down to really. You either have an offense or defense robot you really cant have both.

>>968100

I know how to build a fucking robot, I have the experience and know-how, i want to know what robot /diy/ wants

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>>968102
this post ruined my fries

>>968102
I figured you were looking for ideas - that page talks about the pros and cons of a lot of different designs.

Apparently you know everything, so I suppose it wouldn't interest you.

>>968105

I know what I want, ideas from /diy/ not a deceased father/son team

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Fucking wedgefags.

>>968108
Some people like winning.

Make a drone.

>>968112

against the rules

>>968111
Wedges arent shit when you get knicked by a low profile drum.

>>968115
What rules?

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I'm up for a drum but what true will it play?

>>968119
OP didn't specify, but it's assumed that Robot Wars rules apply.

Thus, no flying, no projectile or explosive weapons, controlled by remote.

Wins by ring out or immobilization.

>>968091

Ok, what kind of chassis/material from here? Boxy? Round (like that one Brazilian team)? Tall? Compact? Fat? Wedge armor? Sheer edges?

>>968124
Armor should be angled like tank armor to deflect impacts, with a large pnumatic wedge flush with the armor. If the pnumatics fail the wedge can still be used by driving directly into the enemy.

Chassis should be titanium to minimize weight while retaining rigidity, external plating should be hardened steel to protect from piecing attacks and prevent snagging.

Any remaining weight allowance should be made up with a lead plate in the bottom of the chassis to lower the center of gravity as much as possible.

It might be interesting to have a system to retract the wheels on command and leave the robot flush with the floor to make it impossible to get a wedge underneath it.

>>968092
Is this legal?

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>>968135

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Have a big-ass bucket with a rubber gasket around the rim, self-sealing rubber lining along the outside and a high-speed vacuum pump hooked to it. As soon as the enemy gets close enough, flop the bucket over the enemy bot and suction it to the floor.

>>968124
beryllium enclosure

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OP here

based on the feedback pic related is what I got

>heavy duty back wedge
>spinning drum w/tiny wedge
>slanted armor

Now what? Any feedback (bear in mind this is a quick sketch)?

Also

>what do we name it?

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>>968176

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>>968178

>>968176
https://www.youtube.com/watch?v=-wukHk39Tt0

I would make a bot like the Streaker

Small core that contains main drive and control units. Surrounded by thick armor. Layer that with shaped charges facing outwards.

>>968188

>3 hours of footage

Which one is Streaker?

>>968195

what do you mean by charges?

>>968198
open the info for the video, it has timeline markers and match names

>>968198
A proper shaped explosive charge should be able punch a hole through quite a lot of material with little or no damage to anything else.

>>968200
ty

>>968202
explosives are against the rules

>>968070
>what weapons
Gasoline sprayer with lighter
>armor
none
>chassis
quadrocopter

Just fly over them and set them on fire

>>968206

Against the rules mate

>>968200

Given input, a Streaker style robot seems to be the way /diy/ is going

>>968070
Wedge-shaped box with an automatic rifle on it with a cattle-prod hose-clamped to the end of the barrel.

>>968176
Moar slant, less faces

>>968224

Ok, tomorrow I will be back on a new thread if this one archives at about 6:00 pst

>>968092

>Spend all kinds of time designing and building a robot
>Some little shit throws you out of the arena like a bitch

wew

>>968176
Name it, Wedgefucker.

>make a battlebot that is literally just a sphere
>no wedge can flip you
>no lawnmower spinner can send you flying (only spinning)
>no pick can pierce you
spherebots are literally immortal

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>>968246
Gentlemen. BEHOLD! The perfect, invincible battlebot! What could possibly save you now?

>>968246
dude BB-8 without the head. fuck shit up all o'er the place.

>>968252
How would it attack? There's a weight limit so it couldn't crush anything

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>>968258
nah I assume it'll have little arms that come out of those trap doors and such with a saw wheel or a welding torch and stuff like that >:]

Any rule problems preventing a layer of tar coated nylon fur, for clogging the spinning blades of other bots?

>>968263
oooo passive-aggressive. i like it! a-are you a grill?

>>968264
tar coated nylon can't melt steel grills.

>>968263
I guess that counts as entanglement

How about a spike that is hooked to the discharge post of a large capacitor?

What's the legislation on extending parts?
Are they never used because of laws or because of fragility?

>>968275
then you'd confuse the referees because you'd just have one big battlebot.

Imitation crab meat shields as armor for maximum carnage

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>>968286
† RIP crammeet-anon †

I couldn't find a picture but I always liked the submission robot. Had a sandbox cover that would engulf the other robot. If the just wrapped that thing in a metal mesh I think they would have won one or 2 before the judges realized it was breaking the jammer rules.

>>968176
>Sketchup

>>968292
>legit nothing wrong with using sketchup.

>>968292
>>968294
Does google even offer that still? I tried looking for it a long time ago and couldn't find it.

>>968299
It exists, and it's still the bane of every worthwhile CAD or 3D modeling application.
If you bother using it, you may as well say goodbye to reasonable mesh topology.

>>968299
Google sold it to a company called "Trimble" a few years ago.

>>968299
>>968306
and it's still just as good or even better now too. i work in architectural acoustics and we use various CAD programs but nothing is faster, easier, or client-friendly than sketchup. it's not the ultimate platform we run simulations and designs on but man, the world is a better place because of sketchup

>>968308
How much can you do with the free version? Can you make STL files from it for 3D printing? I can't seem to find anything about it on the website.

I have used a plugin called "Flattery" for unfolding 2D patterns of 3D surfaces with Sketchup 8 (the last version from Google), then printing out said patterns to make real parts/shapes (i.e. from cardboard or sheet metal). Very handy but I don't know if it's compatible with newer versions of Sketchup.

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>>968311
desu bro. be a pirate. ARRRGGG. [get teh pro version] I think I'm still on 8 myself. I love sketchup. can spend like 3 hours straight just building a chair/table [I add all the joinery and make a cut list at the same time]

>>968176
What happens when it's flipped?
Can it self right? If not then it's already lost.

>>968425
Most drum bots I see have exposed wheels through the top and bottom, or run exposed tracks.

With a 60 pound limit, you cant be putting a self right mechanism on it

>>968429
>60 pounds!
That's a child's toy!

Majority of robots built here in the UK are 220lbs

>>968447
Well from what I assuming from reading in this thread, OP is building himself a bot for a competition, probably high school. 60 pounds is super small, but an obtainable and reasonable size for high school kids.

>>968101
They should change the rules and make a show out of combat robots with machine guns in the desert

>>968176
whats bets free cad software for students in ger?

fuck 60 pounds

i want to see up-armored autonomous 4 wheel drives,with railguns and shit attached, driving around the middle of the desert blowing the shit out of each other

>>968505
try Syria

>>968070
Do any bots squirt flammable liquids or deliver capacitor charges?

>>968531
>squirt flammable liquids
yes
>deliver capacitor charges
no

>>968575
Just trying to think outside of the box. I think the bot needs to out gimmick the rest. The skid plate design is really tired.

What about powerful magnets and adhesive on one end then just get a hold of and drill into the competition like a spider wasp.

Just get one of those little RC tanks and stuff it chock full of explosives.
ALLAHU AKBAR.

A robot made of 4 rotating ramps.

>>968207
these rules are starting to seem more and more bullshit

>>968880
No jamming

>>969686
spinning pyramidbot is inferior to spinning dome-bot is inferior to spinning spherebot

>>968205

can you build a robot that has a combustion engine?

>>968097

with no explosives allowed pneumatics or hydraulics are the only real option

what about a huge LiPo battery that can be tactically ejected when it mysteriously starts to explode

>>969697
The rules are in place because its a bunch of high school kids in a gymnasium. It needs to be safe, and it needs to not be able to break out of the small and kinda cheap arena.

What I would do is make a wedgebot like everyone else has suggested, but out of ar500 plates if it can stop steel core 54r it can stop a toy robot. Then maybe some kind of electric shock system of the flipping face, because I'm sure the bottoms of these things aren't too protected due to the weight limit. Not sure how effective that would be though, maybe a series of small holes on the flip face that hardened nails could be fired from using those .22 blanks for nail guns.

>>969782

Also, cover the thing in old chainsaw pants to bind up any blades they may have.

>>969783
Thing is, these bots are less of the "efficiently destroy the enemy" variety and more of the "I'm going to make you inoperable by brute force" variety.

With weight limits in place, you can install hydraulics and such that you only really need to lift so much. And then flip the enemy over. You don't really have to worry about getting shot at so much as a ``hammer" spinning at a shitload of revs that would send anyone flying.

Projectiles are against the rules, too.

This competition is basically the "no fun allowed" of robot duels.

>>969782

Steel plate thick enough to actually work as protection against bullets is far heavier than you seem to think it is.

Just two square feet of half-inch AR500 is 40lbs. Good luck staying under 60 and being anything other than (barely) mobile.

Also:

>toy robot

Imagine a a circular saw blade suddenly ejecting itself from its arbor and flying toward you, still spinning at 5500RPM.

Now imagine that, only the blade weighs 20lbs and is still attached to the saw. It's going to do damage when it hits, "toy" or no.

>>968102

Rambot with a three pneumatic cylinders, the on in the middle with a hardened steel point that twists 90 degrees once its past the armor and whatever else it gets into. Then the other two fire off and pull the turned spike out of the other bot, hopefully with important bits attached.

Only issue would be ramp bots that are too low profile and can get under it.

>>968070

honestly the best weapon would probably be an angle grinder

>>968263
cannot release any substances onto the playing field, read the rules lel

>>969909
angle grinder disks will shatter from impact

>>969733
>No jamming their radio
this makes sense

>no attaching to the enemy bot
Is this jamming?

I'm beginning to think that just building a perfectly armored "Door stop" bot is more viable than getting creative.

An explosive jack a la Speed Racer that flips our bot over, and hopefully the competition, would be fun. If the competition skirts under our bot, the jack can be used as a spike attack. We could use Ramset style internal charges.

>>969697

Rules, simplified as follows

Nothing boring
>electrical
>radio jamming

Nothing dangerous
>guns
>explosives
>some arenas ban flame

Nothing messy
>liquids

Most bullshit are entanglement, but this kinda' falls under boring because one net and the fight is over.

And there is no flying, I don't think this matters because I don't think flying can really give a robot an advantage in the first place, I think it is a holdover to make arena construction easier.

>>969781
As a high school competitor, I've only ever faced off against adults.

>>969909

>Let me slowly grind your titanium wedge to oblivion.

Best weapon in your dreams kid, kinetic energy weapons are the only spinning weapon that makes sense

why the fuck havent we made a robot dirty fighting league with gambling

Triple fully automatic nailgun setup.
No armor.
Lightweight chasis for maximum movement

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>>968083
Which is why battlebots was doomed from the getgo with all the shitty rules.

>>969976

Which rules are shitty?

>Plus the new BattleBots was just renewed for season 2
>Adam Savage is gonna' be a judge
>Inherently shit as a show, but Adam is gonna' bring it home for me

>>969977
>no lister

dropped

>>968480
I can't remember the show, but some guys did that. They had like 3 bots per side and mounted machine guns and grenade launchers to them. Shit was cash

>>970004
Yeah I remember that one guy had missiles but got hit by a nuke
Fuck off.

>>968083
https://www.youtube.com/watch?v=-ovPD8xYZ_k
they could have simply banned wedge-bots. made a weapon an external weapon mandatory and a certain fraction of total weight. otherwise it's just fucking wedgebot vs wedgebot. or made it so that a critical element cannot be shielded. like the driven motor or power source must have an X sized window of maximum X depth such that battles can actually take place instead of just allowing faggots to "solve" the game.

>>970072

>citing a fight from over two decades ago

Of the top five robots ranked right now, two are spinners, including the number one rank right now

>>969967
might as well just put up 4 textbooks in a square and just put two turtles between them, this is why these high school competitions are bullshit, if you're in high school, make your own robot fighting club mate.

Get a robot that pours water all over the other.

>>970168

Mate, I compete with adult combat robot leagues.

These rules add very little limitations to the kind of weapons that would work effectively.

>Unless you want everyone to just dump buckets of water and liquid nitrogen on each other

>>970192
No explosives, fire, flame, or anything dangerous? Plus you can waterproof robots you know, this shit is boring as fuck, nobody's going to help you with these shit rules, piss off.

>>970168
When I was in high school, I didnt have the disposable cash to build a robot.

Its sponsored so the kids get to build a robot without ponying up the cash for it. Teaching opportunity, and its fun.

The competitions are great

>>970196
Turn it into a scholarship opportunity, give them a budget, let them build the robot how they want, and the winner gets the scholarship.

>>970194
>muh flames

Battlebots was vastly superior to Robot Wars because it didnt allow faggy shit like that.

Its really sad they got lax on the rules to make its more flashy for television in the new season.

I bet you think the secondary robot in the new season it cool.

>>970199
Okay, I admit flames are kinda fucking stupid, but this shit is just gay as fuck mate.

>>970194
>No explosives, fire, flame, or anything dangerous?

Nothing dangerous! No shit! People can get killed


>flames are allowed on each events own ability to get fire permits

>>970196
>When I was in high school, I didnt have the disposable cash to build a robot.

whatisajob.jpeg

It's how I pay for my shit

>>970206
>whatisajob.jpeg

A job in high school is working part time for 3 months at minimum wage.

>>970216

Not entirely true, and is more than enough to finance a robot

>>970222
Sure, it could have been enough to build a bot. Then it would get destroyed and you would need to repair it

Low on most kids agenda to spend their disposable cash on. There is a reason you dont see a ton of high school kids running their own competitions.

>>968092
>mfw by the end they are all just flippy wedgebots

If its scored by hits make a big tattoo gun with a rebar spike (maybe two powered by the same motor for a "one two punch") and strike them hundreds of times a minute.

I would build something scorpion/crab shaped with claws to grab a wedge and hold it up to the reciprocating spikes.

Strafe wheels running sideways to the main drive for scooting sideways. Not enough Aikido like circling moves. Most bots are stuck in a 2D movement system, maneuverability is king.
$.02

>>968178

Get rid of the bullet traps. Make the armor one piece on the sides (or on plane) otherwise you are giving things a place to potentially bite into.

>>968092
Why not just make a drill bot to counter these wedge mongers?

>>968092
4min in.

>>968070
Does 60 lbs include the battery? That's really really light. I did FIRST robotics in high school and we were always limited at 120 lbs, though there was a year where there was a different weights at certain heights.

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>buy a metal shredder
>place it on RC car
>add some chrome, spikes, and purple sash so it looks like the Shredder from TMNT
>??????
>PROFIT!!!

https://www.youtube.com/watch?v=b7ex3ejXnEo&feature=player_detailpage#t=51