Hobbity Circuits (I don't know)

Julie the Wizard /

I don't know what the fuck anymore so here's some shit from my folder called "hobbit shit". Most of this shit is shit I haven't tried yet. Seriously, this is some fo'reals R&D type bullshit. Shit.

(I just learned how to swear.)

I'll probably post to this thread if I remember / make more things. I have no idea if this stuff will work but I plan on trying it probably pretty soon.

First up, we haveeee... A new hobbit stop light. For this recipe of awesome you'll need:

10x LEDS (OVLEW1CB9)

* These fuckers are bright

* Like 35,000mcd (35 candles bright)

* They're 5mm in diam

* 20ma forward current so you don't know what the fuck anymore

* 3.2 forward v, watch out, I think that's enough to give someone an erection

5x Resistors

* What do I look like, radioshack?

* 330ohms

* 1/4watt is fine.

?x Resistor

* I odn't know a bunc of 180ohm res. Look at the schema.

14x LEDS (VAOL-5GWY4)

* Not as bright as other shit

* Good for looking cool or something

* 30ma forward current

* 3.5v forward

What the fuck my cat is now on my bed. Okay cool. You can chill here and look at my moped. Yeah. I know.

if you don't know what you're looking at, that's cool. it's basically a pcb measured and carefully made into a shape that I think will fit inside the tail light housing for a stock hobbit. If I'm wrong, I've traced the tracing far enough away that I can do some drilling without any harm. This is a two layer pcb with polyfill copper grounding planes.

The center row of leds are your super-fancy high power leds, the rest are the lower power leds. This takes in vcc+ on the top two rightmost pins at 12v. The left pin at top is gnd. rightmost is vcc+ at 12v for stop light.

this board is not protected from ac. So if you attempt to make this, please don't put it directly to your alternator. rectify it. or it will explode.

another pic

I'll upload some gerbal files or whatever they're called and my eagle files once I've finished cleaning them up. likewise, I'll start adding some posts of other circuits I'm working on now that I've tested them somewhat. voltage rectifier that I keep talking about and regulator.

if anyone has any suggestions, shoot. I didn't know where else to put this. (edited)

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

I'm bored. Have a picture of a circuit I'm not done.

Same shit as in my hobbit cdi thread. I already made two of these and sent one to another MA user. Now that I'm learning EAGLE, I want to make an official type board and stop breadboarding my shit.

biggest problem so far is heat dissipation. cause you know. that shit's hard.

Was thinking of ordering a 'build a box' aluminum water-tight enclosure from mcmaster carr, drilling a couple holes for the rectifiers on the circuit, and bolt them into the sides. That way they use the case for heatsinkage.

They're a little bit, so I'm thinking my hong kong voltage reg might be able to fit in there with the rectifier. whole power package in one spot. aww yea.

mostly I just want to be able to ride my ped in the rain without worrying that all my shit's gonna fry.

oh yeah, this is the regulator board.

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

Finally received a stack of boards in the mail. I soldered it up today.

I'm missing resistors and capacitors. The aux vreg board I got from hong kong. I was trying to figure out how to fit it to my board and I originally tried nuts and bolts. I failed with those, as they wouldn't fit the case I made for the circuit. So I tried instead riveting it. Well that broke the board. Then I tried bolting it and shaving it off with my dremel tool, but that got so hot that the circuit board caught on fire.

So I ended up just hot gluing it.

Whatever.

Once I get the four parts I need, this circuit will be a power rectification and regulation circuit. It's pretty efficient, as efficient as I could make it. I'll probably put a ultracap across the v-outs to the bike to act as a small battery.

Re: Hobbity Circuits (I don't know)

Probably Fred /

It's all very cool and wiring is fun but Why are you doing all that again ?

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

oh yeah. lol

Converting all the bike lights to LED, so I figured I'd switch the system to DC. This has all been a few very long posts on switching AC to DC, regulating that voltage to 12v, and making an LED backlight.

Re: Hobbity Circuits (I don't know)

are you trying to delete the stock battery and do this all battery-less?

Re: Hobbity Circuits (I don't know)

Holy cow, how have I missed all this business!? This is awesome! looking for your CDI thread now.

That tail light board is nice. Care to share the Eagle files? We do some shitty PCB etching at my shop and I've been meaning to give it a try.

Re: Hobbity Circuits (I don't know)

Oh, didn't take the time to read before replying; it's a regulator. That's awesome, but I was excited by CDI schematics :)

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

Okay, contained in here is an archive of ALL my current files which are a bit different than what's shown.

Honda Hobbit EAGLE Files

The light board now has spots for diodes. This means it can be run on an AC bike, just find some appropriate diodes to slap in the two spots. If you alread have a DC system, just bridge with a metal bar or put them in anyways as an extra safety feature.

The power system in here is a AC RECTIFIER (An inverter for layman terms). Dual FULL single wave rectifiers. It -requires- you to NOT GROUND YOUR COILS! Meaning you need to have two more wires coming out from your stator. -there cannot be a common ground-. I found this fries the circuit because the common ground reverse negative overloads the circuit at worse and at best you gain nothing.

I don't know any other way around that, because I am not an electrical engineer or designer. It will work with just one coil attached if people want to use this circuit on different bikes. Just attach your accessory coil to the yellow side. This won't regulator your voltage, only correct the AC to DC.

The hatched marking on the circuit board indicate where you can attach an aux voltage regulation system to bring the output to a regulated voltage. At stock, the out (because it's in series) will output somewhere between 12 and 35 volts!! It could fry your shit, bro.

The maximum voltage this circuit can handle is 200volts. The peak output is 400volts. 4a (4a per coil) is absolute max amperage.

Enjoy and don't kill yourself. (edited)

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

And yes, if you put an ultracap on the regulated voltage, you could delete the battery entirely. This -should- be more efficient than any other moped power board anywhere. I haven't actually tested it yet, like the top of this thread says, "This is some R&D type bullshit".

With this circuit, you can switch all your lights to LEDs, add a cell phone charger, and watch porn while crashing into things with your hi-tech future machine moped.

Re: Hobbity Circuits (I don't know)

I think I'm in the same boat as you. I like software and metal. I'm kind of EE-tarded. I need a circuit that can take a charge either off a magneto or off a battery and dump a charge to a transformer ("high tension coil") when triggered by microcontroller, and uhhh... I dunoh.

Re: Hobbity Circuits (I don't know)

Neil Burgess /

Go with a battery rather than a cap. The cap works- might even be ok with just a couple bulbs or some leds. But it'll flicker at idle and forget about turn signals or extras- the cap will fizzle out under any kind of load. I tried a few different caps- some small and some quite large. Found that they all dim to nothing in seconds unless I was cruising off idle. One cap almost worked- but it was bigger than a 1.5mah sealed acid battery. Even that one wouldn't hold a led headlight load with led blinker on for more than a few secs at idle.

I messed with the cdi electronics for about a year! Now that I have the bugs worked out- my blinkers and lights all work good /stay working good even at idle. Settled on a pietcard single light coil, Trailtech reg/rectifier, 1.5mah sealed acid battery, led headlight, led blinkers, and kept the standard 8w running/10w stop bulbs in the rear.

It's a fine balance- you may have potential to make 35v- but 2/3 of that gets shunted to ground by the regulator to hold at 12-14v. At the same time 2/3 of available wattage gets shunted. Cant power shit idling at 10v. You'll get 30-50 useable watts at best when cruising. Spend your watts wisely. And have a good battery to hold your lights when sitting at a long light.

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

It shouldn't flicker. The DC curve is pretty smooth, and even with a significant load, it would be hard for it to dip the caps low enough to produce a flicker.

The whole LED taillight assembly uses like.. Less than a few watts. In fact, all my experimental bike, the biggest consumer is the 35W headlight. Everything else will be just a few measley watts here and there. The coils have also been rewound for more turns.

With two thick accessory coils, this thing should provide hella power.

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

I should note you might be totally right and this is a huge waste of time. I am not an EE. I'm just splainin' my thought process.

You could be right on the money.

At least the LED taillight I'm totally sure on. That one is good.

Re: Hobbity Circuits (I don't know)

Did you ever see an ultracap get a spike they can blow up real good. With a full bridge you wont have any problems like that.

Re: Hobbity Circuits (I don't know)

You fool no one, Julie with this circuit you could rule the world. At least in Eugene. Looks like you fun doing it and stayed out of trouble. I tried to open your file on the circuit but couldn't . Just learning how to cuss, bull.

Re: Hobbity Circuits (I don't know)

Neil Burgess /

Julie Iaccarino Wrote:

-------------------------------------------------------

> I should note you might be totally right and this

> is a huge waste of time. I am not an EE. I'm just

> splainin' my thought process.

>

> You could be right on the money.

>

> At least the LED taillight I'm totally sure on.

> That one is good.

Yes- experimentation is good. I just found that by making more watts- more gets shunted to ground by the reg. I actually made enough power to turn one of my rewound hobbit coils brown. Not quite black- but obviously discolored. Not having any issues with the pietcard coil which is as big as both the hobbit coils put together. Your results may vary- as you are dual rectifying where I am using a single rectifier.

The flicker is mainly due to the led's super fast on/off time. At idle you'll most likely flicker- as voltage will dip below 12v. Mine did with caps but with a battery it's fine.

I like the taillight- so make me one too(of course I'd buy it) and I'll come down there- you me and Harvey can test ride them! He rode my bike a couple weeks ago when I was down there- it was fun. He thinks my bike should be raced on a track lol said it was the fastest moped he's ever ridden! High praise from the guy with 10 mopeds......"ridiculous" was his word...... Personally I'm always changing stuff on this one- It's got too much stuff on it and I'm no lightweight myself- topping out 50-55 mph. On a stripped down Hobbit with a light rider 60+ would be easy. Always room for improvement! So my next project may be a racing frame to slap my engine on...... or maybe just build another..... who knows! One thing is for sure- I love Hobbits!

Re: Hobbity Circuits (I don't know)

Emil Kniemel /

Neil Burgess Wrote:

-------------------------------------------------------

> Julie Iaccarino Wrote:

> --------------------------------------------------

> -----

> > I should note you might be totally right and

> this

> > is a huge waste of time. I am not an EE. I'm

> just

> > splainin' my thought process.

> >

> > You could be right on the money.

> >

> > At least the LED taillight I'm totally sure on.

> > That one is good.

>

> Yes- experimentation is good. I just found that by

> making more watts- more gets shunted to ground by

> the reg. I actually made enough power to turn one

> of my rewound hobbit coils brown. Not quite black-

> but obviously discolored. Not having any issues

> with the pietcard coil which is as big as both the

> hobbit coils put together. Your results may vary-

> as you are dual rectifying where I am using a

> single rectifier.

>

> The flicker is mainly due to the led's super fast

> on/off time. At idle you'll most likely flicker-

> as voltage will dip below 12v. Mine did with caps

> but with a battery it's fine.

>

> I like the taillight- so make me one too(of course

> I'd buy it) and I'll come down there- you me and

> Harvey can test ride them! He rode my bike a

> couple weeks ago when I was down there- it was

> fun. He thinks my bike should be raced on a track

> lol said it was the fastest moped he's ever

> ridden! High praise from the guy with 10

> mopeds......"ridiculous" was his word......

> Personally I'm always changing stuff on this one-

> It's got too much stuff on it and I'm no

> lightweight myself- topping out 50-55 mph. On a

> stripped down Hobbit with a light rider 60+ would

> be easy. Always room for improvement! So my next

> project may be a racing frame to slap my engine

> on...... or maybe just build another..... who

> knows! One thing is for sure- I love Hobbits!

i weigh < 130lb, let me test ride your hobbit. i cant wait to break 50mph..

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

lol guys.

Neil, get a couple people to come down to Eugene and let's do a ride, man!

I'll make you a taillight if you want one. The cost for the bill of materials in parts was... (checks) $26.47 (inc shipping). But I ordered extra in case I fucked shit up. You could probably get it a little cheaper if we just got the necessary parts.

I have two spare boards, I ordered the three for 36$ or something not including shipping. So 12$ for the board itself.

Kinda sucks they're so expensive but when you're just ordering prototyping stuff instead from a huge manufacturer it's a little more pricey. otoh it's one of a kind :)

Should be a plug-n-play kinda deal. Bolt right up and etc assuming I measured the holes right.

Re: Hobbity Circuits (I don't know)

Jules

i could listen to you swear ad infinitum : - }

Re: Hobbity Circuits (I don't know)

Neil Burgess /

We'll do it Julie. Next time I'm down there at Harvey's we'll have to all ride again.

Emil Kniemel Wrote:

-------------------------------------------------------

> i weigh < 130lb, let me test ride your hobbit. i

> cant wait to break 50mph..

Too easy- mine pulls my 210lbs 50+ sitting upright. Tuck is good for 55ish. And my bikes way heavy with mags and hydro front forks/disc brake. Runs awesome tho I'm tuned more for 0-50 than 55+.

Seattle rally tomorrow I'll be there hop on and give it a go! Too bad I can only make tomorrow's ride :>( going to miss sat and sun to see my son get married east of the mountains........

Re: Hobbity Circuits (I don't know)

ha, i was gonna be like PROMA FTW!!!!

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

best wishes dude.

haha, I have a proma on my hobbit right nao, mit.

goddamnit I was a leo vince. I hear they're quieter. but then I can't really hear anything with all the noise this fuckin proma makes. lol.

Re: Hobbity Circuits (I don't know)

Downhill Harvey (OFMC) /

Am I the only person in the world that can quiet a Proma. Proma's have a circlip, LeoVince have 3 rivets. Circlip FTW any day. Practice packing, and you'll get it done "lickety split".

Re: Hobbity Circuits (I don't know)

I got mine worlds quieter through heavy modification of the baffle... Damn thing would still wake the dead.

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

Mopeders: I have received the boards.

Good news!

They fit the stock taillight casing -PERFECTLY-. Not only do the holes line up, but it fits without modification. I'm a little surprised that OSHPark was able to cut it exactly to my specifications.

Here are some pictures.

Now just to solder everything onto it. Fuck this is going to take forever.

Re: Hobbity Circuits (I don't know)

If you have a spare that you would like to recoup some of your cost with, let me know. I see some very high power LED that have a very narrow beam width just itching to go in there. My problem is always of trying to get a bulb that fills a reflector like an incandescent. Solution: Screw that, point em out.

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

Yeah, I have two more boards. They need some work, and I'd like to do a second revision. the via holes are too damn small for high powered electronics, so I'm settling for 1/4w res like m y initial plan was, rather than 1w beefy resistors.

My cat says hello, Ryan.

Also I hit 40mph on my moped while going to the electronics store for more resistors. Fastest it's ever gone.

Re: Hobbity Circuits (I don't know)

Julie the Wizard /
muse OP

Okay done. It took me a while to do this.

Couple hours almost.

First step was solder up a few LEDs, some tires, diodes, and a couple resistors so I could check that this thing wouldn't explode. I took a battery out of an LED flashlight. (4x 1.5v so 6v. That's half power for what this board was designed for. So keep that in mind that this thing is only at half brightness.)

My idea over whether or not this will work is as fuzzy as this picture. Let's hook it up to the battery.

Shit. It kind of hard to take a picture of because it was stupid bright. The angle of attack on these LED lenses is 15 to 20 deg. It'll blind everyone behind you.

So I continued soldering up more. This took a while. Snip leads. Insert into board. Clean soldering iron. Solder leads. Clean soldering iron. Repeat.

Eventually I ended up with this.

Sweet. Let's test running lights.

Yeah, okay, that's pretty bright. Does the whole board work?

Damn. That's bright.

This board should work on an AC hobbit. So I suppose it's time to test it. I'm lazy and I'm going to do that later.

Re: Hobbity Circuits (I don't know)

Julie I'm not sure your cat and I have met? Haha. Either way, let me know.

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