Author Topic: my build diarys (Read 120133 times)

NFX · « **Reply #420 on:** September 03, 2011, 04:51:35 PM »

Ideally, the hammer should be a fair bit longer, and the other end should be an extremely sharp spike. =D

haz · « **Reply #421 on:** September 10, 2011, 02:54:09 PM »

GoldenFox93 · « **Reply #422 on:** September 10, 2011, 03:02:13 PM »

Reminds me of one side of Gemini =P

haz · « **Reply #423 on:** September 10, 2011, 03:04:54 PM »

haha nice

GoldenFox93 · « **Reply #424 on:** September 10, 2011, 03:15:33 PM »

I'm liking the look of the weapon, as well. What can it lift?

haz · « **Reply #425 on:** September 10, 2011, 03:17:14 PM »

a featherweigh

it can lift up to 50kg

NFX · « **Reply #426 on:** September 10, 2011, 03:26:09 PM »

You've trimmed down the chassis, haven't you? Now add Shiny Hubs.

haz · « **Reply #427 on:** September 10, 2011, 03:28:20 PM »

build to the weight limit, minamize space add MOAR RAZORS got ya

GoldenFox93 · « **Reply #428 on:** September 10, 2011, 03:28:57 PM »

Quote from: haz on September 10, 2011, 03:17:14 PM

a featherweigh it can lift up to 50kg

Ah, that's pretty good for a FW. Perhaps you could add a bladed tip and use it to hang up opponents, a la Big Cheese

haz · « **Reply #429 on:** September 10, 2011, 03:31:49 PM »

like this?

NFX · « **Reply #430 on:** September 10, 2011, 03:35:57 PM »

Actually, I've just thought of something. If a robot was just on the top of the arm, would it not tilt itself over when it tried to lift it, rather than lifting the opponent? With the front edge being so far back. You could either add stabilising things to the front of the chassis, or shorten the arm if you really wanted to.

GoldenFox93 · « **Reply #431 on:** September 10, 2011, 03:40:51 PM »

Quote from: haz on September 10, 2011, 03:31:49 PM

like this?
(Image removed from quote.)

Yep. Or this-

haz · « **Reply #432 on:** September 10, 2011, 03:43:36 PM »

the wheels being in the middle stop it from doing that.

haz · « **Reply #433 on:** September 11, 2011, 11:42:19 AM »

i upped the voltage a little and replaced the weapon speedo

SKBT · « **Reply #434 on:** September 11, 2011, 12:13:03 PM »

I'd move the wheels forward to where the battery's are because once you lift something the bot is going to want to faceplant and with the wheels up at the front the bot has a smaller turning circle to get the weapon facing an opponent.

If you don't do that I'd mount most of the heavy stuff at the back to act as a counterweight when you lift another bot.

Or just put some outriggers on the front to prevent it from faceplanting.

haz · « **Reply #435 on:** September 11, 2011, 12:36:50 PM »

cool, thanks for the feedback, looks like i had better get the hardox out then

haz · « **Reply #436 on:** September 13, 2011, 12:34:34 PM »

here is the latest featherweight creation from my team mate jonny, who insisted on doing it propperly the fool!

NFX · « **Reply #437 on:** September 13, 2011, 01:22:43 PM »

lol @ random tin of Varnish.

Looks pretty good so far. I'd add something on the back to stop getting stranded. Why do all the LW's seem to have relatively tiny wheels?

SKBT · « **Reply #438 on:** September 13, 2011, 01:42:23 PM »

Most LW and lower bots use drill motors that output 450-1000rpm. Average robot speed is ~10-12mph.

Tire diameter (inches) * Axle shaft speed (rpm) / 336 = speed in mph. So with that a 4" wheel and a 900rpm the speed is just below 12 mph. Which is about average speed for a robot.

Also large wheels cause more backforce on gearboxes which means more stress on the gears and a higher likelihood of stripping a gear.

How big is the ram and what pressure are you running at?

haz · « **Reply #439 on:** September 13, 2011, 03:53:22 PM »

yeah this uses 2 speed 900s with a 5:1 gear ratio so it zips along nicly, with regards to pnematics, i havnet a clue all i know is it involves burkets and will be quite powerfull