Well, I’ve seen a lot of brushbots online. You know, those little bots that move forward just because they jiggle… insert joke here. So, I needed a project while I was waiting one the bearings for the CNC machine, so I decided to build one. BAD idea. I started with one little brush and one little vibe motor… pretty soon, it got out of hand.
This is where it started getting out of hand. I decided that sponges would be awesome. This thing is going to end up cleaning my tub, so I want it to do a bang-up job. Sponges help bang-up jobs, right? Right.
Yeah. ALREADY out of hand. The red brush on the front was the original brush, had to incorporate it, you know? The little black feet sticking out of the back are there to make sure it goes forward, since the sponges aren’t… well, since they aren’t brushes, duh. I made it so that it would be easy to change the sponges out, used auto rivets for molding. Sweet set-up. I’m an idiot, but we’ll get to that.
See? Easy change-out. Yeah, well. SHUT IT!
This is a vibe motor out of an XBOX 360 controller. DID YOU KNOW that each one of those things has TWO of these?!? Yeah, they do. One has a bigger weight and requires more amperage than the other, btw. This is the bigger one.
Skipping a few steps, since who cares, this one didn’t work anyways. All wired up here, you can see the smaller aforementioned motor.
All wired and hotglued. Cause hotglue rules, and you know it. You might notice two 9-volts where 4 AAs used to be. Yeah, I go for power.
So this is the last iteration of this version. Two reasons… One, see those motors mounted upright? Should have mounted them sideways, because it caused a rotational effect and made the thing turn the way the motors were spinning instead of scooting forward because of the vibrations. Two, sponges weight A LOT when they absorb water. When I decided I could get past the rotational effect (it was more of a “I like to turn right as I move forward”, not so much of a crazy five-year-old getting dizzy), I tried it in the tub. DIDN’T MOVE AT ALL. I got mad and went to Wal-Mart.
$25 at Wally-World. Well, a little aggravation and $25, anyways. This is what I had planned on it looking like, and as I type this, its not to far from the truth, actually. I’ve since discarded the squeege on the back, as well as the smaller, aft-positioned brushes.
Well. Here is the main body of BrushBot 2.0 bolted together via a plate that someone threw at me at work. It flies like a small, heavy, sharp, metal freesbie, unsurprisingly.
See that controller? It has two more of those vibe motors, and I needs them! Die controller!
Moments later. I ain’t got time for screws! You have no hold over me, M-soft! Oh yeah, remember me mentioning the CNC machine? Yeah, that’s the bottom railbox I’ve been building this thing on, btw.
This is a little holder I made for all four vibe motors. Made sure to mount them on their sides, this time. Big ones in the middle, smaller ones on the outside.
So… two brushes are better than one, right?
So, of course after my experience with BB1.0, I’m not relying solely upon vibrations to make BB2.0 move. It’s gonna have wheels! Well, after a fashion, anyways. I heated the already-attached gears on the motors with a blowtorch, and allowed them to melt themselves into the stand-offs. I like fire…
Alright, so this is the current state of things. Sad, I know. I broke my vice bending those plates, which really shouldn’t surprise me. It was the cheapest one that Lowe’s had, after all. I plan on the two brush-wheels being on the back, mounted at 45 degree angles. Still curious about my power source. I picked up a 6 volt lantern battery, but I’m not sure if thats enough amperage or not. Or if it has enough amp-hrs to get the whole tub clean before it dies. Also, who wants to replace a fairly expensive battery like that everytime? I was considering making the whole tub an induction coil…heheheheheh… yeah, definately…