Featherweight Database

[knightrous]

Featherweight Database

Is that the planetary ring gear youve welded to the chassis????

[killercarrot]

Featherweight Database

yep
planetary gear cages welded, drive shaft bushed through 50x25 2mm ERW chassis, no more of that floppy motor mounting business with jubilee clips..

[glen]

Featherweight Database

cant remember if i posted this before or not but hey ill do it anyway lol

Name: King cobra

Drive: 2x 18v dewalts with the complete team delta setup at 24v, 2x 3 x 1.5 colsons and home made bearing blocks
Weapon: as if it needs one
Battery: 24v CP2400scr nicad packs
Speed controller: victor 885
Armor: 6mm mild steel angled all over, base lid and wedge are 3mm, the inside pieces are all 4.5mm stainless as are the wedge mounts.
Status: just about ready

http://img.photobucket.com/albums/v357/Cobrarobotics/DSC02428.jpghttp://img.photobucket.com/albums/v3...s/DSC02428.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/DSC02437.jpghttp://img.photobucket.com/albums/v3...s/DSC02437.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/DSC02439.jpghttp://img.photobucket.com/albums/v3...s/DSC02439.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/DSC02460.jpghttp://img.photobucket.com/albums/v3...s/DSC02460.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/DSC02462.jpghttp://img.photobucket.com/albums/v3...s/DSC02462.jpg

Name: Woodzilla
Drive: 2x 9.6v drills at 12v with dual 95mm wheels
Weapon: 115kg crusher
Batteries: 12v cp2400scr pack
Speed controllers: umm basically just some lego IR controllers that fire off relays... its an interesting setup ill tell you that
Armour: 12mm MDF held together with 3mm ali L bracket and m6 bolts. the crusher is all 4.5mm stainless.
Status: just needs final wiring and drives mounted.

http://img.photobucket.com/albums/v357/Cobrarobotics/Woodzilla/DSC02262.jpghttp://img.photobucket.com/albums/v3...a/DSC02262.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/Woodzilla/DSC02421.jpghttp://img.photobucket.com/albums/v3...a/DSC02421.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/Woodzilla/DSC02422.jpghttp://img.photobucket.com/albums/v3...a/DSC02422.jpg
http://glen.botclips.net/Woodzilla test%202.wmvhttp://glen.botclips.net/Woodzilla test%202.wmv

Name: Kang
Drive: 18v drills at 24v, 95mm custom polyurethane wheels. these gearboxes are hand modified by a good friend to have bigger pins and theres 6 on the output and supported on both sides, BULLET PROOF.
Weapon: 260mm saw blade. 850g in weight driven staight off a giant fan motor that has a spinning plate. ~ 4000rpm
Batteries: 24v 3000mah nimh pack
Speed controller: IBC
armour: 10mm 5083 ali everywhere 12mm wall thickness pipes on the sides
notes: came second at our last event, woohoo

http://img.photobucket.com/albums/v357/Cobrarobotics/Kang/DSC02471.jpghttp://img.photobucket.com/albums/v3...g/DSC02471.jpg
http://img.photobucket.com/albums/v357/Cobrarobotics/Kang/DSC02010.jpghttp://img.photobucket.com/albums/v3...g/DSC02010.jpg
http://glen.botclips.net/Kang%20vs%20BoB.wmvhttp://glen.botclips.net/Kang%20vs%20BoB.wmv
http://glen.botclips.net/Plan%20F%20vs%20Kang%20vs%20Retread.wmvhttp://glen.botclips.net/Plan%20F%20...%20Retread.wmv

/end

(Message edited by Glen on December 08, 2005)

[dragonmaster_1]

Featherweight Database

Just finished uping the power on Kishar from 12v to 24v for the Disc. Small vid on http://www.teamdragon.org.ukwww.teamdragon.org.uk bottom of Kishar page

[armadrillo]

Featherweight Database

Hmm. Very Nice Tony.

That reminds me why im in no hurry to get my feather finished any time soon!!

[ewan]

Featherweight Database

Finally made a page about my neat new HTI gearboxes

http://www.micro-maul.co.uk/gearmod.htmlhttp://www.micro-maul.co.uk/gearmod.html

[knightrous]

Featherweight Database

I now have the ability of running at up to 24v with less risk of burning out the motor

Having seen HellBringerX run 4 x HTI motors with SS2 gearboxes @ 24v, Id say you have the same chance of blowing the motors up as a Mini EV HellBringerX smoked on average 2 motors per event, IIRC.

[robotic_ants]

Featherweight Database

I have seen quite a few reports on the american forums of the HTIs burning out at 24v in various configurations/set-ups but im sure you will have much better luck at 18v.

Chris - ^_^

[jamesb]

Featherweight Database

sorry, what did you do here?
swapped some cheapo drill motors for slightly more expenseive cheapo drill motors?

no offense meant, just a lot of writing about a simple thing.

I have been running 2 wheel drive 600 size 6volt motors at 24 volts for 6 months now, no big deal really, pushed pillow torque in a couple of fights... and ran well on plastic gears for 3 events.

I personally would use better motors on the gearbox you have, but thaTS JUST ME.

[storm]

Featherweight Database

Actually I thought Ewans effort was something to be commended rather than taken to bits. Clearly a lot of thought went into produce an information page with no use other than trying to show others how they can work on their machines (which is pretty self-less if you ask me).

Yes you might choose a different motor - but doesnt the fact that someone Ewans age can do the job of modifying the gearbox, and have the nouse to document it and write about it deserve support rather than a flaming ?

Seriously Ewan, dont let them get you down !

Ed
http://www.teamstorm.comhttp://www.teamstorm.com

[jamesb]

Featherweight Database

fair point, although i think the actual mod was simple, and a bit pointless documenting it, I must say that Ewan has done something I find extremely difficult.

Putting this information on the net is not a thing i find easy, so yes, all commendation to Ewan on that, and to the fact he is selfless in his attempts to help everyone for no reward other than the enjoyment of helping. Fair play.

Doesnt change the fact that I worry about people Ewans age (and sometimes a little older) posting indepth information that I often feel is misleading, inaccurate and to be honest, does more harm than good, but in this case, yes, very well done article, not all acurate, but still... changing motors is not rocket science. I would be far more interested in why Ewan chose this motor? What benefits are there? What are its specs? It says basically, but more info would be nice, since so much time and effort was put in. Also, more info on the gearbox, what can it do at its limit?

People who visit this forum for information benefit a lot from people like Ewan, who put so much stuff up for them, but I have to say that there are times when I cringe at the stuff being said. I wonder how many people copy bad advice and give up when it doesnt work? Very few people realize how old some of our experts are, which I feel is dangerous.

This is nothing personal against Ewan, or anyone else, heck, Im sure people would disagree with some of the advice I give, but I always try to be sure that I am giving the best advice, not the latest thing i tried and dont know if it works yet. I have come accross a lot of people who have said that half the stuff you read about building robots is bad advice... I agree

Ewan has achieved something else I cant, Ed jumped to his defence very quickly, so he clearly knows how to make friends and influence people A future world leader maybe?

[jamesb]

Featherweight Database

and having said that.....
Ewan DID put info links about both motor and gearbox....

slinks away under a rock, with egg on face....

[ewan]

Featherweight Database

you do that

[andrewj]

Featherweight Database

Just a suggestion... maybe the FRA should put together a set of guides like these to help beginner roboteers? I beleive the Aussies are doing something like this at the moment.

[aliboy]

Featherweight Database

It looks like Ewans guide was written just in time are the SS2 gearbox and the HTI motor is no longer availible on The RMP or RDS , Great Going Ewan !