Har Har bloody har.
I was more concerned about the poor Kid Tom who does quite well! LOL!
Mr Stu
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Har Har bloody har.
I was more concerned about the poor Kid Tom who does quite well! LOL!
Mr Stu
Gordon, did you modify the 12v golds front plate as suggested?
lol @ Grant
Has anyone tryed putting a fan or somthing onto the drive shaft of an over-volted gold motor to keep it cool? Like a bosch 750.
there isnt room inside.
Ewan ,Yes i did mod the front to take a 608 bearing.
Dave ,the fan inside the Bosch does next to naff all when used at a drive motor.Its never spininig fast enough for long enough.
By the way i also drilled holes in the casing of the gold motors but purely to save weight,i have taped over the holes.And i havent noted any difference in there performance.
:)GORD
putting holes in golds would not make much difference accept for weight as there is no fan to circulate the air through them. mounting in an obsorbant material is deffinatly the best way. Fans wouldnt make a large amount of difference even if it had them inside, Overvolting motors gets them majorly hot n seconds, far to quick for a fan to make much difference
Ive put a pic of Vertigo (as of saturday) on my profile. You may be surprised to hear Im putting the drive of micro-maul 05 (which went 6-1 at Rc Wars Wrexham) into Vertigo. Ive decided to stick with the gold for now (although I have modifed the gold with a bearing in the front boss). Testing will take place next weekend.
Looking good Ewan - just try not to kill yourself testing it :oP
Ed
http://www.teamstorm.comhttp://www.teamstorm.com
whats the specs on that? well the spinner? looking good. especially if the drives as good as it went at Rc Wars.
http://www.micro-maul.co.uk/vertigo.htmlhttp://www.micro-maul.co.uk/vertigo.html
Looks likes its going to be made of two 290mm dia. 8mm hardox disks weighing about 3.6Kg and driven by an overvolted Gold Motor, dont know what the gearing is but it sounds like its going to be a bugger to spin up quickley.
Looks like my plastic drum is going to take a beating again but this time its Ev Warrior powered!
Chris - http://www.featherweights.org/forum Im So Evil Im Worshipped By The Devil
how you doing for weight? and what batteries are you using, as that gold is going to suck alot of power.
but looks good.
Well I guess if he does need alittle weight back, ide take the rear drive motors out and replace them with skids then the bot would be able to turn on the disk axis rather than the centre point. Ive always seen it as a good feature for spinners to be able to turn on the centre of the weapon axis rather than the centre of the robot.
Chris - http://www.featherweights.org/forum
Weights going well, Im only 7.5kg in the pics. As Im planning on adding 4mm Ali around the sides and a little on the front, Im probably only going to use one of the hardox discs which means only around 1.8kg (or 2kg if you include the weight of the great big pulley) of disc weight. The ratio is exactly 1.8 to 1 off the gold which at a very rough estimate could give around 3800-4000rpm off the overvolted gold. Its certainly not going to be any kind of vortex but I hope the drive will make up for it, it could relly pack a punch driving full speed with the disc up and running... well... I hope
Ewan,
Chris has brought up a very sound point, just how far is the center line of the disc from the center line of your drive? Because if its any more than around 1/2 a disc radius, god help you if you need to make a tight turn! I know this from bitter experience! (ever seen a robot stand at 45 degrees from upright in the middle of the arena?!)
Just something for you to think about!
Theres a reason why Vortex had the axis of the weapon directly in line with the drive wheels (give or take a few mm).......
Ed
http://www.teamstorm.comhttp://www.teamstorm.com
Well see
look at pimp 2, that had a really good drive aswell as a great weapon, but it was mounted infront. it Flipped itself completely over at one point.
thats no bad thing, if hed flipped and the disk is running downwards, he can self right :)
(to Geoff), the center of the 2wd format is directly beneath the axle, while in 4wd, the turning centre is 12cm away from the axle. This means it is about 4/5 of a disc radius away.
The width of the bot is quite wider than Pimp2 or Vortex (about 420mm), while it is only 400mm long. While the centre of gravity may be slightly higher than these two bots, I might just about get away with it.
Ill take some more pics this evenin
P.S if Im flipped Im done for :)
.... know that feeling
Ed
http://www.teamstorm.comhttp://www.teamstorm.com
could have put rampage style roll cage on Ed....
It looks too tacky for him. HEHE.
Mr Stu
Then he could put 1/2 Grade 5 titanium roll bars on, with vortex milled into the top and then gold plated :) that wont look too tatty. And anyway, i like rampages roll cage, cheap/easy/simple AND WORKS
By the way chaps, I wont have the hardox discs from Sweden in time for Magna. Ive found a local metal stockists though which has the right size of aluminium disc (which Ill bolt steel teeth onto obviously).
P.S. Ill see how it goes at Magna but I might just add Rampage style roll bars eventually.
New updated Picture of the bot on my profile. It includes the new 290mm aluminium disc (see last post). The green bits are 3mm steel plates... I only had the green metal paint (to protect from rust) but it kinda suits it dont ya think? :)
Final Put-Together finishes tonight so I hope for a test run wednesday/thursday night.
Looks interesting Ewan!
I have a couple of questions...but they can wait until I see it in the flesh at Magna..
See you on Saturday,
Geoff.
It looks evil Ewan. That disk has gotta weigh nearly 4Kg assuming its solid! If not youd better start drilling my boy! lol :)
looks like a nice design, but is the disc ballanced well enough? Looks like too ruff a cut to be perfectly balanced, and if your running off a gold, it may not have the brute force to keep it spinning at a nice speed!
Cant wait to fight it - zoooooom smash. So what it does when 10mm ali with 5mm Ti on top of it hits it at 25mph. Big spark and someones going to fly, or both. LOL!
Mr Stu
To all questions: :)
Rob, Its only 2kg, even though it looks as beefy as it does :)
Grant, Its nicely lathed down, and the teeth balance it out perfectly. I dont really think the front-view of the disc does it justice.
Stu, bring it on! lol
Oi Stu!...Leave it alone, you know Pillow Torque has first claim!
As Jenny already knows, I have plans for it :wink:
*shivers*
So, it seems that the girls have you in their sights...Oh boy, are you in the deep poo now Ewan! :proud:
(Ask Stu, hes been there!):wink:
Ewan I like your feather but try and get your hands on an EV Warrior or better and up the voltage to 24v, as im alittle unsure about how the Gold is going to perform.
Then I might be going towards getting scared nearly just about.
Chris - http://www.featherweights.org/forum
Yeah inside the arena the girls are nice, out side - boy we all run and hide!!!!!!! hehe!!!
Mr Stu
Ewan. I estimated it was close to 4 Kg, being spinner enthusiast myself Ive a good idea how to judge their weight :) density of ali is 2.7kg per cm3.If your disk has a rad of 14.5cm its area is 660cm2, or 66cm3 per mm of disk thickness, giving a mass of 178g/mm thickness. My own 290mm disk on BlacknBlue is 8mm thick giving a mass of 1.5 Kg, yours looked nearer 20mm thick in the pic hence my estimate. The steel teeth add to the weight too.
Can wait to see it spining up!
Rob
density of ali is 2.7kg per cm3
I think you must have strong gravity that messes with the scales in your area ;)
2.7g/cm3 may be nearer the mark.
oops! Now that would be a heavy disk!
lol. Ewan needs a body guard I think