Oops, freudian slip :P
Printable View
Oops, freudian slip :P
Magnet testing of 540 going well... Massive amounts of grip, and the wedge is pulled down tight to the floor.... If it doesn't blow up, or ruin any more gears, it should be ok;
http://www.youtube.com/watch?v=bpei2vKm ... ata_player
Is that whole thing Ti and Hardox?! If I remember right the base is 5mm Ti, Hardox sides and top? How much did that all cost, (ignoring the the electronics) I asked a company for a quote in 2mm Ti and 2mm Alu and the the Ti version was £110 for 1 compared to the Alu at £23 for 2!
£110 for what? a sheet of ti? or a fabricated shell?
i didnt buy new, i got it all at mates rates- £20 for hardox, £20 for titanium base... everything else was just blocks of ali i got from ebay... most of the original components i had liying around, so didnt cost to much.. biggest expense was gears, tyres, belts and pulleys.
Have you put your top back to Hardox again? How did you get that in weight?
Just found out that Bitza Mk2 weighs in at 14.2kgs currently.... Needs a serious diet!
Looking good though, anyone else got a magnet bot? You could have a ceiling fight......
Without the disc it's in weight... Can run 2 configurations;
Disc, motor, titanium lid = 13.555kg
Hardox front, Hardox top, magnet = 13kg
Just have to decide what configuration to run, depending on who I'm fighting :)
LS4 also has 4 small magnets... so far i think thats the only other robot using them...although im guessing someone will turn up and suprise us this year with one.
Neat idea!
I think I'll put a paper clip magnet in Bitza just to join the club :lol:
I'm buying Magnets :)
Champs went bad... More fire and broken gears, so... Had a good think, 720's being striped for parts and sold, 540 is probably going to Gary who's re fitting the dewalts in low gear and using the beater... Should be very reliable in that setup...
New robots to be built... Just spent a fair whack on parts from the US, so when that arrives I'll start drawing something up... Will be pretty simple compared to my other feathers.
... And yes it's going to be a spinner :)
good man.
stuipidly powerful i hope?
3+kg drum going somewhere between 15,000-20,000rpm, similar to touro from the US hopefully.
Gonna call it Galactus? :wink:
surely it should be 900... 360, 540, 720
lol @ jamie...
Dunno, guess ill just call it a number again, thinking up a name is effort.
call it boo bee :rofl:
800 833 ?
If the drum is going on the front you could paint it green and call it 'The Psychotic Killer Lawn Mower'... or have I gone to far? :lol:
OMG! :shock: 540 is so gonna be called 800 833!
Call it 118, and stick a 'tache on it.Quote:
Originally Posted by mr_turbulence
Quote:
Originally Posted by k_c_r
Gotta be done.
836?
If you know about download 2011 you will get it :lol:
I was there and I don't get it?.......
Duckbillflappypus?
Quote:
Originally Posted by mattsdragons
http://i408.photobucket.com/albums/p...0d/awkward.pngQuote:
Originally Posted by PJ-27
Oh dear PJ, you don't remeber the legendary securely guard from the Sunday of download who's number was 836? :O
No? How did I miss this!?
oh dear PJ, how did you manage to go and not see 836?! :D
Did first CAD-
All the parts are on order, so couldnt double check meassurements against the ones states on the websites i ordered the stuff from, so it'll probably all change when they turn up...
http://i685.photobucket.com/albums/v...s/newfwcad.png
Decided to try something different to scorpion motors... im aiming to get the disc speed up to near 20,000rpm :)
Very nice, should have some awesome gyro-dancing, especially spinning at that speed. You still planning on having the toothless timing pulley with this?
compact beatery drummy spinny things are the future!
I just need to make sure I fine-tune mine to help stay in the mix, but I'm liking the increasing number of drumbots 8)
Why not make a single toothed drum, i don't think there's been one of those before.
with good reason
Yeah i am going for toothless on the drum... being a bit of a pain to draw in cad as im not entirely sure what diamater to have that part on the drum.... im guessing ill work out the PCD as if i was using normal pulleys but turn the one on the drum to the PCD of the larger pulley.... if that makes sense.... trying to do it so i dont need a tensioner.
i think drums could do really well in the future if done right- they do in america... only problem is NST and LS4... building something to take the horizontal impacts is a challenge... thats why the front end has a billet of ali either side wraped in hardox, and all the chassis will be 20mm alumec 89... beefy :)
Yes, it would be deemed to cool to compete 8) .Quote:
Originally Posted by harry hills
Too right! The ali billets will be a good help, but the difficult bit to protect against will be the drum itself. That's what happened in my play-off with Savage Evo back in 2009. I had 16mm of HDPE and 20mm Nylon as my front supports which could cope with anything, but Savage got a hit on the tooth of the drum and pulled it out its mounts.Quote:
Originally Posted by mr_turbulence
I'll probably look at Drumroll and see if there's any way to fit some sort of deflective armour on the front (shaped like the front of a boat, so that horizontal blades deflect down into the arena floor, an idea implemented by one of the Aussie builders) but it's trying to get the right trade-off between not having your drum sticking out too far that it gets hit, and not having it too recessed that it's struggling to hit anything. But I think horizontals in general tend to have the upper hand against verticals.
What material are you planning on using for the radius bits at the back corners, and all round armour for that matter?
EDIT: Scratch that, read your last post and saw Hardox mentioned.
yeah, i shouldnt have that problem as there shouldnt be much flex in the chassis compared to urse...
not going to have too much drum sticking out so there wont be much side purchase... and its going to be on angular thrust bearings to take some of the side load out... so hopefully that'll help..
The side armour is 3.2 hardox im going to TRY to bend out of 2 pieces- 1 per side... if ed lets me pop in and use his hydraulic press at some point.... i wanted something with a bit of flex around the wheels.
...think were going to have break dancing competitions when its finnished jamie :P
We should just spend the full three minutes of a battle doing that. Wonder how the judges would score that one :rofl:Quote:
Originally Posted by mr_turbulence
Yeah there is quite a bit of flex in my chassis come to think of it. Not sure how the pros and cons of that balance out, so will be interesting to see how a more rigid one like yours gets on.
But you've got it well planned out by the sounds of things and it'll probably look pretty shiny and cool as usual, looking forward to build pics in due course :)
I would always err on the side of having more drum showing. I'm not in the arena to proect my opponents from my weapon and I've learned the hard way that having it shielded in various ways just ends up hampering you
What CAD software are you using Dave?
Looks nice a clean, and obviously does 2D. Getting fed up with this fake horizon, random woman at startup, SketchUp crap.