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Hi.
About time I made one of these (it feels nice to be able to!
). I've had two 30a Electronize ESCs, a Planet 5 2.4ghz transmitter/reciever set and 4 drills for a while now. There's been some space opened up in my dads work schedule, making this weekend (day this thread was made) a good time to start putting something together.
We have loads of old iron. It's thick, very strong stuff, amazingly heavy, but since this first bot is just a great big full body hammer, I guess weight is a good thing! The iron is from window bars or rejas (Spanish name, I live in Spain), so it's designed to not let stuff get in, which is... Good!
We didn't really plan all that much, y'know, we took a drill apart to see how small we could get the motor and gearbox, only to find 16 tiny ball bearings explode out of no where as soon as you unwittingly spin the motor axel, lol.
We looked at some of these rejas (like these things: http://1.bp.blogspot.com/_7BFcyqAQNOM/T ... +REJAS.jpg) and made up a chassis.
PROBLEM.
We don't know how to weld, we've had very little experience, I've had none to be honest, so we tried our best to weld some chassis up, they aren't pretty, and probably not very strong, but for our current purposes they should be fun, two side aluminium plates bolted onto the two sides of reja also help, it's strong enough to stand on, say.
We got a crude, but by the looks of things perfectly functional motor mount (just making the right size holes in the right places of the side wall) together, and got a motor on either side of the bot (we only had two wheels to hand). We found a small caster wheel and screwed it into a chunk of wood, and wedged it in the back of the robot with an offcut of the ali we had (it came from an old ladder haha). We had some half charged batteries (the ones that came with the drills) and we had a thread ona really badly grouted tiled floor. It's fast, and has crazy acceleration (I've never seen one of these before) and that was on half power with pretty much just one motor, the others battery was really quite low. Plus the caster was crap, and the floor was about as bad as you could hope for a caster that size.
Surprising how fast a 9kg chunk, well, 7 or so kg chunk of iron can move! Some pics below.
Beware! This has not been made pretty at all yet, all the welds are dodgy, the old paint of the rejas is dead, it's rusty, the way we got the ESCs and whatnot to sit on top is quite interesting, we made good use of a cardboard cake tray! So yes, don't expect the finished product to look anything like this.
you see the basic shape of the chassis and two motors roughly mounted.
from above, crudely mounted... everything!
not a very flattering angle
There are a few ways we can lose a bit of weight, we like the idea of some sort of lifter (Storm II style), but that's all after it works as we want it to and it looks nice.
WE NEED A NAME!
Edit: oops, kind of a huge wall of text, sorry about that! :shock:
Ellis
About time I made one of these (it feels nice to be able to!
). I've had two 30a Electronize ESCs, a Planet 5 2.4ghz transmitter/reciever set and 4 drills for a while now. There's been some space opened up in my dads work schedule, making this weekend (day this thread was made) a good time to start putting something together.We have loads of old iron. It's thick, very strong stuff, amazingly heavy, but since this first bot is just a great big full body hammer, I guess weight is a good thing! The iron is from window bars or rejas (Spanish name, I live in Spain), so it's designed to not let stuff get in, which is... Good!
We didn't really plan all that much, y'know, we took a drill apart to see how small we could get the motor and gearbox, only to find 16 tiny ball bearings explode out of no where as soon as you unwittingly spin the motor axel, lol.We looked at some of these rejas (like these things: http://1.bp.blogspot.com/_7BFcyqAQNOM/T ... +REJAS.jpg) and made up a chassis.
PROBLEM.
We don't know how to weld, we've had very little experience, I've had none to be honest, so we tried our best to weld some chassis up, they aren't pretty, and probably not very strong, but for our current purposes they should be fun, two side aluminium plates bolted onto the two sides of reja also help, it's strong enough to stand on, say.
We got a crude, but by the looks of things perfectly functional motor mount (just making the right size holes in the right places of the side wall) together, and got a motor on either side of the bot (we only had two wheels to hand). We found a small caster wheel and screwed it into a chunk of wood, and wedged it in the back of the robot with an offcut of the ali we had (it came from an old ladder haha). We had some half charged batteries (the ones that came with the drills) and we had a thread ona really badly grouted tiled floor. It's fast, and has crazy acceleration (I've never seen one of these before) and that was on half power with pretty much just one motor, the others battery was really quite low. Plus the caster was crap, and the floor was about as bad as you could hope for a caster that size.
Surprising how fast a 9kg chunk, well, 7 or so kg chunk of iron can move! Some pics below.
Beware! This has not been made pretty at all yet, all the welds are dodgy, the old paint of the rejas is dead, it's rusty, the way we got the ESCs and whatnot to sit on top is quite interesting, we made good use of a cardboard cake tray!
So yes, don't expect the finished product to look anything like this.you see the basic shape of the chassis and two motors roughly mounted.
from above, crudely mounted... everything!
not a very flattering angle
There are a few ways we can lose a bit of weight, we like the idea of some sort of lifter (Storm II style), but that's all after it works as we want it to and it looks nice.
WE NEED A NAME!
Edit: oops, kind of a huge wall of text, sorry about that! :shock:
Ellis
) wheels gave up, they're made with some of the softest plastic I think I've ever seen, the bore (originally 9mm) got sliced away to almost 11mm lol!
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