Archived threads in /diy/ - Do It yourself - 79. page

https://www.amazon.com/gp/product/B06ZYPPH9Q/ref=ox_sc_act_title_5?smid=A36FEP9VDJCUWP&psc=1

>12 amps

You're at the limit of a 15 amp breaker as the residential usage threshold for those breakers is 80%. Also a ballast on a gfci is prone to nuisance trips.

>3 A
Ya, sure on the 12 volt side. Not the 120 side. Turns into roughly 0.3 amps at 120 plus losses and conversion.

>tripped the gfci
Either you're on the limit or that thing is too noisy and u need a different plug. I'd say the former especially if you're running the hid ballasts on the same circuit.

Those little pussy strips are good for flowers not anything that takes real energy like tomatoes or weed. Personally I'd stick with HIDs v's expensive high output led setups unless you got the cash. It'll take some time to get an roi from an effective led setup. 1000w is 1 kwh or 24 kwh/day so you do the math when you look at the bill. If you can run the ballast on 240v you'll reduce your bill by half.

This is basic shit you can get off wiki. Lurk moar.

>>1206788
Try using bigger lights

I've also been told that LEDS don't work but usually by the guys at he hydro store who want me to spend $700 on equipment I don't fucking need cause I only want to grow two plants at a time.
Nigger was like, it's not worth it man. I'm not trying to grow a fields worth.

Grasscity.com has a forum for first time growers as well as experienced, they can help you.

I have yet to venture into this because funds are low but soon I will.

>>1206626
Get a suitable cord. And run It outside your car in the shade.

>>1206631
I can't do that if I'm living in it too.

What's keeping you in Utah?

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Here's the original pics if needed.

>>1208453
> solder wires to washers
> use rubber band to hold washers to ends of battery

Or you could just use some masking tape if you don't need the wires to be removable.

>>1208456
wow, that's actually pretty smart

I think I will try that, thanks!

>>1208459
Good luck man.

>>1208111
i just don't understand why someone would make this up. what is the reason?

>>1208111
Compression of air cools it. It needs wind power in a specific direction to work. It's not exactly rocket science.

>>1208111
This is the worst thing I have seen on /diy/. Making poor people waste resources like this is just criminal.

Here's some diy refrigeration that actually works:
https://en.wikipedia.org/wiki/Pot-in-pot_refrigerator

>>1208064

Built three and a half of them. All for lulz, mostly, but one I use regularly for my commute. like $1.50 in gas to take the car, measured a round-trip's worth of electric for the bike at just over $0.05.


Anyway...been thinking about re-building it at some point for a couple specific reasons.

Hub motors are good and stealthy (especially a smaller, geared hub), but I'd really like to use the gears, for performance reasons.

I built a custom pack to fit the frame of this bike, and it's a little larger than it needs to be for a round-trip commute. I'd like it to be a _lot_ larger than it needs to be. I have another pack's worth of cells to use, and it's always good to have more battery than you need. If not for the capacity for out-of-the-way meandering, then for the reduced load on the pack and the increased longevity that offers.

Current-based throttle. The standard ebike throttles control the duty cycle of the controller, effectively varying voltage at the motor. This is kind of crap, because it means the throttle literally does nothing if it's pushed to a point lower than would be representative of the speed you're going. Depending on the characteristics of your motor, you may hit current limit only slightly above that point. The net effect of this is that you end up with very little usable throttle travel, and kind of crap control because of it. Controllers that vary current based on throttle are much more usable, but, unfortunately, most controllers don't support this. Nicer ones might, and will specify if they do.

>>1208094
That's great! I was thinking of re-fitting my current 700c road bike (steel forks and alum frame) with a front hub 500W motor. Any suggestions on inexpensive brands? I'm in grad school for EE currently and don't want to spend too much. I was considering designing the controller from scratch using an arduino and an inverter as well. Not sure if that is too much to take on by myself.

>>1208094

(cont.)

If you're building your own controller, however, obviously you can put that in yourself. I've also considered making my own controller, because there are a few features I would like that are only present on more expensive models. Have a look at ebikes.ca's controllers. It's a bit pricey, but it has a very robust feature set, and includes most everything I'd be looking to do myself.

Speed limiter would be a good idea, specifically for legal reasons, and doubly so if the motor drives through the gears.

Never much cared for pedal assist, but I'm a lazy fuck. Straightforward enough to put a couple load cells on the pedals (though they necessitate some sliding contacts) or a torque sensor on the crank (probably requires some modifications to the frame). Not necessarily easy without the right equipment, though.

Misc stuff: Ball bearing disc brakes are choice. Braided cable sleeving and adhesive-lined shrink tube on the wiring is cheap and will make the finished product look very clean. Wear a helmet...I've eaten shit, pretty bad, twice on mine (one time just left scrapes and bruises and potato-chipped my front wheel, the other cracked a rib). Anderson powerpoles are a loose "standard" connector to use.

And expect to spend more than you think you will. I got a good deal on all my parts (especially the batteries), and, all-up, I'm still sitting on about $1000 of equipment, including the bike itself. Prices have come down a bit since I got this stuff, but still.

>>1207850
Go to the local cheap shit store (Walmart, etc) and buy a set of strap weights. They are filled with small weighted bags. Maybe put some layers of duck tape to make them more durable.

>Duct tape smells
Don't buy cheap duck tape. I'm not saying you need to spend $15 a roll or anything but I've never had a problem with 3M brand duck tape and it is a bit more expensive than the normal stuff.

Why not bypass the tape and stitch the bags into fabric pockets?

>>1207968
>>1207855
He should use cheap tape just to see if it is worth it. If he doesn't like it, not much work would be done or materials lost.

You'd need to use 2 bags, one fitted over the other. The inner bag would have its top facing the bottom of the outer bag. Then you fold the outer bag's top over and tap it down.

>>1207661

If it's not too much trouble post pics of the actual part where we can see the damage.

Cast iron can be hard to deal with. Some welder guys say you can't weld it but I think you can weld or braze or something.

JB weld might be the solution depending on how it broke. If a long straight section cracked then you can put another piece of iron or steel on the back where it is not visible and then the JB weld is not dealing with a weak butt joint but rather a long lap joint.

Is this something that people walk on? If so what is underneath? Pictures help with that too.

Details details details.

>>1207661
go buy a grill cooking grate and cut to size with an angle grinder

also killllllllllll yourrrrrrrrrrrselfffffffffff fffffffffffffffaaaaaaaaaaggot

>>1207684
>also killllllllllll yourrrrrrrrrrrselfffffffffff fffffffffffffffaaaaaaaaaaggot

is there a school where you learn how to do this?

is it a subreddit? a tumblr page?

It looks complicated yet simple at the same time. I might try it on a low-traffic thread, maybe early in the morning.

>>1207644

water jet
wont melt the the vinyl likr a laser cutter would. wont crack the vinyl like scissors will

next time google this shit

>>1207673
Is this really an affordable thing you can do at home?

>>1207688
You mean you don't have a water jet at your house?
Pff, man you are missing out.

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Also, I can't drill or use silicone glue or such (renting), so I was thinking of using pic related to fix the whatever panel I wind up using.

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I use this rigid foam stuff when I need to poke pipes through a ground-level window.
The downside is that it has no strength at all and offers no resistance to break-ins.

>>1207593
You literally posted a picture of what you need to do....

>>1207524
101 ways of making sure the neighborhood hates your spic ass.

Number one, install iron bars over windows.

>just install plywood over your windows when the need arises. Or better yet get better home insurance to have your windows replaced for free if something does kool-aid threw them.

>>1207527
Maybe if you didn't have spic level reading comprehension you wouldve noticed that the project is for removable wooden panels during hurricanes.

No metal is going to be a perfect solution, even galvanised or stainless can be affected by some types of timber, but your best bet for both minimising timber to metal contact and anchoring the fasteners as well as possible is to use epoxy. Go to the West System Epoxy site and read their stuff about embedding fasteners.

Pretty sure you will need a dedicated network interface for that. I don't see any widely available li-fi network interfaces out there.

>>1207481

IrDA is dead as a door nail, LiFi doesn't seem to have much chance of doing any better.

Why do you want to use optical?

>>1207660
He's trying to plant a bug and flash a signal against the window to read with a scope and a pi.

get phone vr. cut out hole for phone camera. or if your phone doesnt have ir mount a camera on the outside and route the feed to the phone

>>1207437
instead of the LCD screens, what about salvaging two of the viewports from old handheld cameras, with the mini CRTs in... Ain't fun without the HV.

>>1207475
direct ocular xray injection ftw

>>1207407

They're better than window units. Period. Downsides are cost and more complicated installation.

>>1207423
Yeah it seems that they're around $800-$900 plus close to $2000 to pay some dude to install them (I can do basic handiwork but I'm not gonna do anything that touches my roof).

I should see if I can figure out how much electricity I'd save and if I can get my power company to subsidize it since they already said they'd replace my lightbulbs with LEDs to save power.

>>1207424
You can save a lot of money if you do some of the installation by your self, it is simple af

>>1207352
Knock yourself out anon. I buikt a trailer mounted foundry.

Was gonna try the reil style burners. I hear good things and they cheap

>>1207367
Kast-o-lite 3,000 or kaowool unless u wanna throw an old brake rokor in the sink

I built a brake rotor forge, with a small electric fan. Don't go too deep for the fire box and buy good coal.