What is the ram size, buffer and valve?
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What is the ram size, buffer and valve?
What is the size of the ram in Flow?
will talk to you on msn
Team: Team Xtreme Robotics
Name: Anxious
Status: Active
Drive: 2 x 12V drill motors with 100mm blue wheels
Power: 14.4v
Speedo: Scorpion XL
Armour: 3mm Mild Steel
Weapon: Rambot
Weight: 5.2kg (With Anxious the elephant on board)
Hight: 100mm
Width: 380mm
Length: 200mm
Radio Gear: 40mhz Technobots SkySport 4
Pictures: On profile and more http://s189.photobucket.com/albums/z...s/Anxious/Here
Weight: 5.2kg
please let me flip you lol
Ok.
Thats not a robot, thats a door stop :lol:
Probably takes the title for the most compact feather now :)
BonX, but smaller and a lot softer.
It would make a nice Raptor.
Thats about the size I was thinking for my new feather, It looks really well made Tom be proud of yourself I like it
Well, no name yet and also not finished yet, but here are the first previews of our new feather: <
http://www.team-rcc.org/images/RCCHittersmall.jpg
http://www.team-rcc.org/images/featheraxeframesmall.jpg
The frame is all Laser cut and welded up today. The rest is on the way.
A few specs:
Drive, 2x speed 900 with 90mm wheels
Weapon 1x speed 900 21.6:1 gear reduction
Scorpion XXL for drive
Custom H-bridge for weapon.
Voltage tbd.
Lookin good Leo. :)
Certanly looks like its going to be entertaining in its fights.
Name: Tanto XP
Status: being constructed
Drive: 2x 700 size Brushless motors custom wound (by me)
Topspeed: Approx. 45 Mph
Power: 2x A123 6cell 2300 mAh.
Speedo: reprogrammed controller (classified brand)
Armour: 12 and 4mm Hardox 450
Weapon: 17KJ Rambot
Post in error (wrong section) Sorry:uhoh:
(Message edited by scorpion on December 10, 2008)
well its going to be under 8kg by the looks of it so might be able to have 2, but this one is costing about £500
Name: Hunter
Status: Under construction
Drive: 2 golf caddy motors
Topspead: 15/20 mph?
Power: 3 24v alarm batteries
Speedo: TBA
Armour: 3mm Ali
Weapon: Full Body Hammer/Thwack Bot
Sounds like two quite extreme robots from both Craig and Matt.
Hopefully pictures will be posted soon.
Craig, I have no idea how you got a robot with a combination of 12 and 4mm hardox under 8kg. What speedo you planning to use?
Matt that sounds rather mental. What are these gold caddy motors? Sounds more more like a heavy setup.
What batteries are you using? The alarm batteries are usually 12volt SLA around 2amps. How do you plan to use three?
Its the amount of hardox Marco and the fact that i havent weighed it complete (as in not weighed it in finished) but i calculate it to be 7.9kg total
Controllers, im not willing to say just yet same as Anto XP but bigger
Craig- good luck trying to get brushless motors with the start up tourque to power a decent pusher.
Sounds like your going down a dodgy road already- i tryed using small name brushless stuff.. the rating on the box isnt realistic and the speed controllers they suggest with the motors are no were near capable enough for robot use most of the time.
What brand are the motors? Its worth going with a big named highly suggested company that are well known within the RC helicopter or plane market- i tryed some one off motors first in 360- they worked brilliantly.. once. then burnt out. And the speedos the suggested were 1/3rd of the power ive had to upgrade to now.. the first set of speedos went up in smoke before it reached 10rpm.
Im on my 5th and 6th esc now. Brushless stuff for antweights isnt hard.. trying to get it to work in a bigger weight class is a pain.
A picture of Hunter is on my profile.
No, theyre not gold motors, though they do look alike!
Theyre from golf caddys.
They VERY qucik and strong at the same time.
The alarm batteries are batteries from Security alarms which we got from a nearby shop that does all that stuff.
We found out that with 2 we could last 2 minutes, but if we had 3 then it would last the full 3 minutes.
Its hard to explain, we dont know the exact names of them.
Dave Brusless for drive isnt easy for antweights its taken years to get it working in the antweight, it will work in a feather and Ill prove it in the coming months
If you use standard parts itll blow up but if u learn what ive learned over the last few years youll know how to make it work
Start up shouldnt require masses of current mine has sensors to feed back to the controller to tell it where the motor is in terms of its rotation, this solves the problem of stalling the motors on start up
Craig- your not the first person to do a brushless pusher in the uk- and yes it did work alright - equivilent to astroflights, it had to have custom made speedcontrollers aswell, just seems more hastle then its worth. Especialy if your only having 8kg of weight pushing it down- its never going to have great traction.
Yeah ive seen a few speed-controllers that know what position the armitures are in for start up. Ill talk to you on msn about it all.
Also- To get a brushless setup working correctly you have to be VERY carefull when picking your gear ratio- Dont pick a motor with a high KV rating and treat it like a normal motor- i pressume youve never geared a brushless motor on an ant before.
What problems have you had then?
the first version of the ant would stutter on start up unless you acceled really slowly
then it would draw too much current ive had it fireball 3 lipo packs
this was with outrunner motors and they were useless, they had no gearbox and would litterally do 30mph
new version uses a 30:1 gearbox and inrunner motors which are much better they now act like a decent pair of brushed motors
Im not claiming to be the first person to do it in a feather but i was the first to do it in an ant
Its got a similar gearbox to Tanto HW the wonderfull thing about brushless motors is that when they have sensors you can get the controllers to act like they have traction control
big wheels and planitairy gearboxs then? good luck with it :) i seriously carnt see you getting 45mph out of it with a 700 size motor though. there normally half the power- if that of one of the motors in 360
Just got back from the factory and did a first spinup of the disc with the new motors and gearbox. Unfortunatly had a problem with the one motor- but managed to get it going on half power with one motor. Spinup time should be just under 2 seconds with both motors working... enjoy; http://uk.youtube.com/watch?v=zAPaqqKb_vI&feature=channel_pagehttp://uk.youtube.com/watch?v=zAPaqq...e=channel_page
Oh and the entire robot with a 4.4kg disc, 4wd and selfwrighter weighs in at 12.1kg
11.9kg Dave:lol:
nice now we just need some events grant :)
11.9 without the gearbox material and a few bolts :) im happy with 12.1..
John - We will update you very soon.
I am looking forward to the rebel robots event now to see 360 in the arena at full speed! If people arent scared enough im sure i can lend dave my much larger lipo pack to test out for another 100% extra power:proud:
ye just whack it in
lol its a little harder to do then that, Getting it to drive in a stable manor will be hard enough on 4cell.
You need some better bearings Dave, sounds a bit rough!:talker:
just needs abit of lubrication on the 2 sets of gears.
So you rushed the first test run not preparing the machine properly?
Tut tut, one thing that I have learned in life is that there is always time for lubrication :proud:
Looking slick :)
Dont add any lube to the gears - it sounds scarier and more intimidating when its noisy! Going for the black spiral on the disc at all?
Gary, my connection screwed up when I was on MSN earlier, but since Im lazy and cant be arsed to type up an email, just to let you know Im sorted for a piece of aluminium now so I dont need to hassle you for some :)
sounds like it just needs running more has the bearings sound like they havent settled yet
the grinding noise is kind of wierd- makes it till it starts spinning up properly.. most of the whirring noise comes from the motors themselfs.. thats fine.
The first stage ratio is in a sealed gearbox and will be filled with high speed grease when its finished- the second stage im not going to grease- because i dont want arena dust/swarf, and general arena rubbish sticking to them and messing it up.
Kennys right- it does need running in, that video is the second time ive ever span it up, theres 5 gears and 8 bearings that need running in.
Name: Chuzzle
Weight Class: Feather Weight
Weight: ???
Weapon: Wedges and a feather duster!
Motors: Drill Motors
Battery: 24v Rechargables
Armour: WOOD!
Extra Info: Covered in fur!