Featherweight Database

**sam_t** · 17th April 2005, 09:08

No mag motor personly I dont see how you could put one in a 12kg bot and use it to its full potential. its ev powered with drills for drive. I have a design without motors or axle on my profile.

**dragonmaster_1** · 17th April 2005, 10:38

Same shape as before. Just changing the weapon to Ti and going to chain drive for the weapon.

**ewan** · 17th April 2005, 10:42

All these robots just look awesome!

**robotic_ants** · 17th April 2005, 13:41

Oh right sorry Samuel, its just that you quoted 6000rpm for the disk and only a Mag motor could privide that off the bat.

So are you gearing up an Ev warrior then because on no load at 24v they only do 4480rpm and maybe a couple of rpm over that for 25.2v?

And while im online for anyone who is interested Ive started a collection of parts for my next project, picture on profile. Possibly not a featherweight!

Chris - http://www.featherweights.org/forumBreak

**sam_t** · 17th April 2005, 17:52

The disk is geared up at the moment but I may drop to 1:1 (current plan is around (1:1.5), it depends on the losses in the bearings and the performance of the batteries.

For reference pimp 2 has a ev warrior at 1:2 @25.2v and we have measured it at over 8000rpm with a calibrated tacho. in theory this bot should be less powerfull than pimp 2 @1:2 but more powerfull than pimp 2 @ 1:5. Im going to try it geared up 150% and drop it if there are problems.

**dyrodium** · 19th April 2005, 11:59

Hello all, I have a featherweight called cataclysm, see my profile for build pictures. Its my first bot, and has only been in one comp so far, beating last years Australian New South Wales champ (called Sorry) for its first match, then being flipped and stuck against the wall in its second by El Bravo.

Power: 2 x 12v cordless drill batteries

Drive: 2 x 12v cordless drill motors and gearboxes

Control: Servo microswitching

Weapon: Passive Wedges. Uses opponents spinning weapons against themselves through self-destruct.

Armour: 6mm mild steel bullbar and 4mm mild steel wedges

Status: Finished, with constant upgrades.

**dragonmaster_1** · 21st April 2005, 20:13

Just about to start to rebuild Tiamat. Getting a new hp ram from Mario 60 bore 75 stroke. Pic on profile.

**maddox** · 21st April 2005, 22:16

50 bore, 50.

**jhq** · 22nd April 2005, 20:25

I shall introduce the toughest drumbot in Finland or probably the toughest one this side of the pond!

Name: HC (hardcore :P)

Drive: 2x 14.4v/550rpm drills at 12v with 76mm wheels.

Battery: 24v/3300mAh matched GP brand high-quality cells, 45A continuous.

Weapon: 24v dewalt spinning 4.3kg/165mm (365mm wide) drum at 2000rpm (can be 450rpm if needed due to safety) Teeth are 3.5mm thick mild steel and will be replaced with 8mm thick hardox 650 ones ASAP.

Frame: 8x50mm 6063 T-6 aluminium flat, 3/8 and 10mm polycarb.

Armor: 3.5mm aircraft alu baseplate and 4mm polycarb top.

Status: 13hr 18min to 3-2-1-GO!

(pic on profile) will post how it did in the event tomorrow.