2009 Fighting Robots FW UK Championships hosted by Robo Chal

**Kenny** · 22nd March 2009, 20:13

hey, jamie with that brushless i gave you you will need around 7/1 reduction give ya around 6krpm then, because on 24v the motor will be doing 42,000rpm lol, the current gearing you have on it the drum will be going 10,500rpm would be cool but might be abit too fast

**RogueTwoRobots** · 22nd March 2009, 20:34

Yeah I'll definetly need to up the ratio as the current 2.5:1 is too low for it. The most I can go however is 4.8:1 running at 19.2V as the smallest pulley is 10-tooth and its 48-tooth that's on the drum. Don't think I'll ever have it running at full speed as it could make driving almost impossible and the teeth probably just wouldn't engage.

Actually a quick calculation puts the top speed at 6600rpm not inlcuding friction losses etc on that 4.8:1 ratio so I might be able to crank it up full occasionally. Will certainly need to play about with/test it and find out what suits. Should make for interesting viewing though

( <- I got myself a new favourite emoticon)

**xtreme** · 22nd March 2009, 20:44

Bah! everyones going brushless. Soon ill be the only one left with a brushed motor spinner, Unless... Ummmm maybe next year eh?

**RogueTwoRobots** · 22nd March 2009, 20:48

Don't worry, if the Speed 900s leave Drumroll, I intend on connecting them up to some other form of spinning metal :twisted:

I think we can both testify to their effectiveness after last weekend

**xtreme** · 22nd March 2009, 20:51

Drumroll is a far superior machine, The fight shouldnt have gone the way it did.
After the tag champs i cant see there been much left of Savage Evo, Kenny and Mouldy are going to destroy everything in site i think.

**cliveb** · 22nd March 2009, 21:58

Did anybody film Tiny Toon v Ironside please?

**leorcc** · 25th March 2009, 07:29

Originally Posted by xtreme

4 speed 900s at 24v at 6-1 with 75mm wheels, that should be pretty nippy right?

That sounds like Omega.

**james...venom** · 25th March 2009, 16:40

does anybody have any pictures from the event?

**RogueTwoRobots** · 25th March 2009, 16:56

Just got some of robots in the pits - not as many as I normally do, I put that down to videoing more this time though:

http://s31.photobucket.com/albums/c3...champs%202009/