R2server

Hey BB, did you ever get that copper traceing down for the 360 degree head spin? I'm kinda thinking of something similar for a project I'm designing right now. Only with alot more juice, I was wondering if there was a limit to the amount of electrcity that could be transfored if I went with that method (or one similar).

Also, hows R2 work with power? Like when its moving around is the computer on, are they seperate systems? Hows that whole deal working out?

Aero,

I've started looking a diffrent direction for R2's swivel power interface I'm looking into comercial slip rings there not cheap but they can handle more power and alot more signals (like 24 total lines). The Circuit board one that I was looking at makeing would have handled maybe a couple of amps. How much power it could deliver is based on the thickness of the copper on the board, the width of the trace and the surface area of the transfer (the more surface are where the brush and trace meet the lower the resistance = more current).

As for the powering R2's CPU while driving around....I've not implemented it yet. But I'm much closer now, I've just need to order the 12V 12AH battery and build a circuit to charge the battery while alowing the CPU to run from it at the same time. That was a little harder to figure out then one would think, I had to talk with one of the guys I work with to come up with the charging circuit, I just need to buid it now :)

Sorry that's all the help I've got.
CrazyBillyBob

So By now your all thinking that I've give up on R2...NOPE Just a little busy.
The part I've been working on has been kicking my butt. The shape has been difficult to covert from 2d Drawing (think a picture with dimensions) into a flat-pack (a drawing that’s used when your going to form everything out of a sheet of flat metal) It's got an angled cut on a curve that took me abit to work out. In this ref pic here there's a cylinder in the way but you get the Idea.

With everything laid out

The Hard part is done Now I just cut each peice out

Then Clamp it up for Brazing, I'm Brazing instead of welding because tese parts are not structural and it's easier to do on this thin sheet metal (22ga).

With It all brazed up and a light bit of sanding (to get all the slag off), The First one is done! One more to go

I only built one at first to make sure my math and drawings were right :) now that this one worked out I'll go ahead and finish the second one (already have it cut out).

The mother board should be back soon, Once that's back I think I'm going to redesign the mother board tray, as I think that it flexed to much and that's what casued the failure.... So if anyone has any new Ideas please let me know!

Well back to the shop!

CrazyBillybob

woooaa This looks amazing :O

R2 FTW!! :banana:

In this Installment of this old Droid we're showing you how discount LED Christmas lights can be used to Pretty up your Droid. :)

A long while ago you all saw me Drill an absurd number of 3mm holes ( 108 ) in some 1/8" aluminum.

Well I dug it back out for use till a new custom Display can be built (that Scrolls Messages like the front).
Here's the items I have to work with

The LED Christmas lights were on Clearance ($3ea) at Walgreens, but I had to have a Friend ship them in from Florida, Seems the Walgreens here in the North didn’t carry them at all this year. Each set has 20 LEDs strung together, so I'll be using 6 sets (the extra will be bundled up and hidden. They will be driven by a "Pic Flasher" from Carl's electronics. The LED Strings run on 4 AA's (6V) the Flasher runs on 9V so I'll just switch out the Resisters that come with the kit for some 390 ohm ones, which will keep the LED's from burning up when run on 9V.

After several hours of random insertion and hot glue you get to this (not quite done but getting there) There's like 3hours of watching movies and burning my fingers in there pwned Not to everyone, Hot glue is hot, and sticky it stays moltten for awhile, and hurts the whole time :) so don't get it on you.

After Testing all the LED strings I tidy up a bit, some black tape, some final connections to the Pic Flasher we're ready to go.

Nope, Some idiot wired all the LED strands backwards to the Pic Flasher... :( It's so Hard to get good help these days!)
By the time I figured that out It was too late in the night to pull all the wires out of the Flasher and fix it.
So Next Time on this Old Droid (tonight) I'll get it rewired, and film the lights running (video forth coming).

Thanks for Tuning in to This Old Droid.
Up next DYI Hyperdrives




CrazyBillyBob

This is my first step into the Dome Electronics, I'm hoping that it will kick me in the butt and I'll get the rest pumped out soon ( with the holidays, and my wife not in school for the last 2 months. my motivation has been lacking, hopefully this will change now).

Lookin good CBB. Keep up the good work man!

You sonovabitch. I can't believe you had the balls to come back. What, you keep me waiting this long, then when i give up, you spring one on me? Well tough man, this ship has sailed.

...I forgive you. :) And i can't believe how cool that looks. You Pwned that glue dude, not the other way around.

-Dave

Just to Prove that I'm not Scared of you Dave!! :bunny: :banana: :santa:

CrazyBillyBob

This Space For Rent



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I've gotten the wiring sorted out on the Rear Logic display.

The Blinking pattern is ok, Not sure what I was hoping for, but it will do!

Here's a Quick link to a Video of the display in action. (it's 36Mb so modems beware! and you'll need a MOV player like QuickTime to view it).

Now that the display is complete I'm moving on to the next system....
Sound :) I'm starting out with this nice Chinese made I-Fraud I-shuffle Mp3 player.

I'm toying with the Idea of making it radio controlled...How by hacking a cheap Zip-Zap Knock off (that I got last year @ MML for being on a loosing team in Ubisoft's GRAW Tourney....Clancy Section did have it's benefits)
I've gotta do some testing on both first. If you've got any Ideas please share them with me (and the rest of the class :) )

Next time the Dissection of the I-shuffle (and maybe the car)

CrazyBillyBob

If you want to make it radio controlled, go to a local hobby shop and see what they have in terms of remote control kits. You might be able to get a nice long range remote and a powerful receiver for cheap. You might also get this stuff on Ebay.

The logic panel looks cool! Surprised you managed to do it without any glue leading out the holes.

-Dave