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thought about making my own security camera setup but for as cheap as possible as i only need it for my front door, i don't want anything fancy but i want you to help me figure out a way to do it, i planned on getting a few cheap webcams off ebay, they can go for as little as 3 dollars, the only thing i am trying to figure out is how to connect it to my pc, whether i should spend another 15$ or so and get a cam that can transmit wirelessly, any advice would be appreciated, i would prefer if it stands below 45$
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>>1202843
Get some chink cameras from Ali and setup zoneminder. (Make sure the cameras are compatible first obv)
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>>1202843
Since you want to put them outside I was recommend against cheep webcams an actually get cameras that are built for outdoors.
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>>1202851
Cheap*
And*
How do you do professional quality electronics painting?
Google and youtube tutorials only go as far as spraying them down with rattle cans which may look nice sometimes but even the smallest amount of paint often makes whatever you painted unusable.
How do i paint something with the quality of [insert custom controller service here]?
21 Posts / 2 Images
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Custom vinyl stickers. Also videogames are for children.
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>>1202618
What do you mean by unusable? Take the parts that are to be painted off first and don't paint around the exposed electronics.
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>>1202633
Bait
How do you convert PC Video to VHS and vice versa?
This guy does it in his video using a VGA to RCA converter box. But he doesn't explain what is connected to what or how the AUDIO is connected. He made it very confusing.
The only thing I can make out is that his converter box has a VGA IN has a cable connected to it and that the YELLOW Video out has a cable connected to it.
He also seems to be using a UCEC USB Capture Card hooked up to his USB.
https://www.youtube.com/watch?v=39E8LjWoExI
28 Posts / 8 Images
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>>1202205
he probably used a simple y cable
shouldn't be hard for you to find
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>>1202205
>But he doesn't explain what is connected to what or how the AUDIO is connected.
line out from laptop, use 3.5mm to red white/phono cable.
can only guess he is using capture card to check the output is working or to view what he has recorded by playing back the tape, there isn't any other screen shown to look at the playback.
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the simplest way to output video is to use an old video card with NTSC output (usually called TV OUT) like this Geforce 5500 (first hit on google). some old laptops also have this TV out jack. for sound, you use an adapter cable with 3.5mm TRS plug on one end and 2 RCA males on the other, which you plug into the sound card.
to convert back, there's a lot of USB video capture boards, like the Dazzle from Pinnacle. it handles both video and sound.
Anonymous
Hey DIY how fucked am I with this AC 2017-06-30 06:28:29 Post No.1201906
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Hey DIY how fucked am I with this AC 2017-06-30 06:28:29 Post No.1201906
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Hey DIY how fucked am I with this AC
Anonymous
2017-06-30 06:28:29
Post No. 1201906
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GF ordered an Ac that would fit, it doesn't fit at all because of out bars. Is there any way to rig this to work. Google is overrun with listicle websites and ads.
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>>1201906
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>>1201907
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>>1201906
shouldve gotten portable ac
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Need aluminum molds CNC'd into sinker dicks. Have several ideas and i will work with you if you will work with me.
I'll mail you plastic versions of whatever you need or blank mold or if you are handy with a dremel i will buy one sided carved and polished blocks for a mold.
Sand casting sucks and i need to make a lot.
Will be a couple weeks until i have cash but we can email in the meantime and finalize price and design. I will even send you a shipping label. 0 out of pocket on your end.
[email protected]
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Something similar to this but with a hole for fishing line eother on the end or a groove through ot for 10 guage solid copper wire to lay.
Pour lead, pull copper wire, hole through it for line.
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If need be can just carve a chanel for a metal ring to be casted in
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Many different molds required in the future i hope. I have made contact with a couple of people bit it has been over a week with no reply and no company will take me seriously.
Pic related is how committed i am.
Anonymous
Looking for a DIY Satellite Phone 2017-06-29 02:49:30 Post No.1201410
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Looking for a DIY Satellite Phone 2017-06-29 02:49:30 Post No.1201410
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Looking for a DIY Satellite Phone
Anonymous
2017-06-29 02:49:30
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I'm looking for a way to maybe connect a Garmin GPS to a smartphone to then have some sort of satellite connection where there is no cell service or WiFi. I work in Northern Ontario for long periods of time and have no means of communication. I know there are sat phones you can buy, though they are very expensive. Any help would be greatly appreciated!
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>>1201410
gps is receive only. a gps gets signals from multiple satellites and calculates a position from that data. that's it. no transmissions.
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Not happening. Completely different satellites and you need service go begin with. This isn't something you can DIY a solution for. Set yourself up a decent repeater base station and get a good radio.
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Just connect the red wire on the GPS device to the black wire on the smartphone. Don't listen to the people above, they're just Satellite phone shills.
Anonymous
Dug a trench because of damp 2017-06-27 07:16:18 Post No.1200265
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Dug a trench because of damp 2017-06-27 07:16:18 Post No.1200265
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Dug a trench because of damp
Anonymous
2017-06-27 07:16:18
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Long story short I have a old house what kept on getting very bad damp on the whole bay window.
I got told by someome the main cause of it was probably because the front garden had been brought up higher.it covered a bit of an air brick and about 3 bricks below it.
So I've dug out this trench as well as putting in a. New damp course (one that goes in the mortar)bleached all the bottom inside bricks.When I get round to rendering it going to use a damp proof chemical in it as well
>question
Now I have a big horrible trench i was going to throw some stones in there.
I want to know is there a specific type to use ? Something that prevents my wall from getting damp.
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Any one ?
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>>1200285
>- Be patient, this is a slow board; your thread will be around for days.
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Had similar issues on bed room wall. Air flow solved everything. Left nothing there at all. There is a garden in front of the trench to keep persons away from it.
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Does anyone have tips on how to clean a bathtub/shower that hasn't had a lot of love for a while?
I went a bit too long between cleaning my shower, and now it's got these discolored stains by the drain and on the sides. I've tried about 3 different kinds of cleaning solutions, which do very little. I've used the magic erasers which do a lot, but still leave a bit of the discolored stains no matter how much I scrub. And the most effective thing so far has been using the green armor mold away stuff. But the discoloration is still there.
A guy at the hardware store suggested using Baking soda and vinegar, which sounds like he's just fucking with me because that shit is what you use to make school project volcanoes.
I would just like for this tub to look good as new, does anyone have any tips for miracle jobs?
Pic somewhat related, not my shower.
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Bleach. Undiluted bleach.
Plug drain, fill with 1/8 of bleach. Let sit for an hour, scrub with a green 3m pad or magic ereaser.
Bleach will cause the drain to rust but if it's proper stainless you just wipe it off when done.
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>>1199413
As a complete novice who has never used bleach.
how safe it is after the fact? Do I need to let the shower run for like 20 mins after?
I have a cat, do I keep her out of the bathroom forever?
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>>1199416
If you get a bottle of Chlorox or generic bleach, it is already diluted. You can stick you hand right in there and suffer no damage. Just make sure you move rugs and show curtain out of the way and don't wear nice clothes. You'll want to rise the shower, but you'll have to do that anyway to wash the crud away. Just 30 seconds of flushing will clear the bleach all away.
The smell will go away quickly once you flush it. Open a window or turn on the fan during to pull out the fumes. You cat will probably hate the smell and will stay away from it until the smell is gone.
Anonymous
/ohm/ - electronics general 2017-06-23 08:23:04 Post No.1198346
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/ohm/ - electronics general 2017-06-23 08:23:04 Post No.1198346
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/ohm/ - electronics general
Anonymous
2017-06-23 08:23:04
Post No. 1198346
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last thread >>1191510
pastebin.com/9UgLjyND
>I'm new to electronics, where to get started?
There are several good books and YouTube channels that are commonly recommended for beginners and those wanting to learn more, many with advanced techniques. The best way to get involved in electronics is just to make stuff. Don't be afraid to get your hands dirty.
>What books are there?
Beginner:
Getting Started in Electronics Forrest Mims III
Make: Electronics Charles Platt
How to Diagnose Fix Everything Electronic Michael Jay Greier
Intermediate:
All New Electronics Self-Teaching Guide: Kybett, Boysen
Practical Electronics for Inventors: Paul Scherz and Simon Monk
Advanced:
The Art of Electronics by Paul Horowitz
>What YouTube channels are there?
https://www.youtube.com/user/mjlorton
https://www.youtube.com/user/paceworldwide
https://www.youtube.com/user/eevblog
https://www.youtube.com/user/EcProjects
https://www.youtube.com/user/greatscottlab
https://www.youtube.com/user/AfroTechMods
https://www.youtube.com/user/Photonvids
https://www.youtube.com/user/sdgelectronics
https://www.youtube.com/user/TheSignalPathBlog
>What websites feature electronics projects or ideas?
http://adafruit.com
http://instructables.com/tag/type-id/category-technology/
http://makezine.com/category/electronics/
>Where do I get components and lab equipment from?
digikey.com
jameco.com
sparkfun.com
ramseyelectronics.com
allelectronics.com
futurlec.com
ladyada.net/library/procure/hobbyist.html
mouser.com
alliedelec.com
newark.com
ebay.com
>What circuit sim software do you use?
This mostly comes down to personal preference. These are the most common ones though:
NI Multisim
LTSpice
CircuitLab
iCircuit for Macs
>What software should I use to layout boards?
Circuit Wizard
ExpressPCB
EAGLE
KiCad
327 Posts / 66 Images
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>>1198554
An Rpi can't provide enough current to drive the motors for an RC car big enough to mount an Rpi on. If you try you'll only break the pin or the chip. 5AA batteries in series will provide 7.5V. The Rpi likes 5V. You'll probably break it if you try. Buy a 5V regulator on Ali or ebay, and plug your Rpi into that, they cost almost nothing. 4AA batteries would give you 6V, which is still above what the Rpi wants. It'll probably work, but you risk breaking it. Your motors will be a lot weaker, though.
The chip on the car likely has two parts: A receiver and a motor controller. The receiver outputs pwm to the motor controller, so what you'll want to do is look at how the pwm is output, and then mimic that with your Rpi.
http://rcarduino.blogspot.com/2012/05/interfacing-rc-channels-to-l293d-motor.html does something similar, but with an Arduino. Instead of plugging the receiver into an Arduino and then the Arduino into the motor controller, you should plug the receiver into the Rpi, figure out the format of signals it outputs, and then figure out a way to have your Rpi transmit the same signals to the motor controller.
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how do i dissolve potting? its hard and black (heh) so i guess its epoxy. its a magnetic pickup so im pretty sure it just has copper wire around an iron core in it.
Anonymous
Where does /diy/ get your tools? 2017-06-15 04:52:41 Post No.1193812
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Where does /diy/ get your tools? 2017-06-15 04:52:41 Post No.1193812
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Where does /diy/ get your tools?
Anonymous
2017-06-15 04:52:41
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I'm a Home Depot man myself, but I hear some people here unironically get tools from other places. Care to explain why?
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You get tools over a number of years from many different places.
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they seem to never carry some really nice brands such as wera and dalluge.I dont really care for husky tools and forget about finding a professional framer tool belt. but for 99% of diyers its just fine. Of course if price is always your priority harbor freight/ princess auto will do.
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Amazon. Whichever local big box has saleson at the time. Rona usually has best regular price on bar clamps. Canadian Tire is good for miscellaneous when on 50% off sales.
Only thing I will go out of my way for is lumber. If I need nice dimensioned wood I go to locally owned lumber yards.
Anonymous
Old milling machine and chinese crap. 2017-07-05 10:43:16 Post No.1204442
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Old milling machine and chinese crap. 2017-07-05 10:43:16 Post No.1204442
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Old milling machine and chinese crap.
Anonymous
2017-07-05 10:43:16
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Long post.
Okay, so I recently got an old Victoria/Elliott milling machine for cheap. Got it set up in my workshop and it seems to run just fine. Motor sounds good, gearbox seems fine, auto-feeds work. Runout measured on the spindle is less than a thou.
The machine is at least 50 years old and hasn't been used in 20 years so it does need some cleanup before it can be put to proper use again, but I am quite happy.
I do however have two questions for DIY:
1. The sump in this machine is fucking filthy. Old coolant, grease and oil, left over from decades past, don't think it has ever been cleaned. I have a small pump on hand and it did a decent job getting the old coolant and some of the filth out, but most of the thick old crap remains. I don't want to throw away too much cash on a special pump that I'll only use a few times, so does anyone have any good ideas for a cheap solution?
2. I am a bit strapped for cash so I resorted to buying some cheap Chinese crap tools to get me startet. Milling chuck with collets, some bits, etc, and I'm thinking of buying a cheap dividing head and a small rotary table as well. I know that this stuff isn't quality, and I am planning on replacing it with some better stuff once I can afford it, but I'm curious to hear from anyone else who has bought the cheap Chinese crap. How bad is it? Can you still do a decent job with it if you take it easy and don't expect too much?
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>>1204442
Amazing find!
1: Take it apart, photograph it as you take it apart so you know how to put it back together. Degrease and clean everything. Make some tools out of wire to reach hard to reach places. Grease/oil it up and put it back together.
2: Cheap shit is cheap because it is very inconsistent, either in spec or durability. Sometimes, you get one that works perfectly and lasts a long long time. Most of the time it is shit, is off spec, and lasts about as long as 1 good job.
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>>1204443
Thanks Anon!
1. Good general advice,actually bought new grease and oil today. The sump is a different beast though, it is in the base of the machine, so it is really hard to get at, but I guess wire tools is the way I have to do it. Gonna take forever :p
2. Good point, I don't expect the milling bit's I bought to last long, but if I'm lucky the chuck and collets will be tolerable.
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I assume pic related? Looks super nice, how much was it? Can you take the sump off/apart? If I were you and had the time, I'd love to completely take apart the thing and clean the ever-living shit out of each individual part. De-rust what needs de-rusting, paint what needs painting, etc. Old tool refurbishment is one of my favorite things to do.
I don't know your milling experience (I, personally, have none), but cheap tools seem like a good idea for now until you gitgud at the craft. Better to fuck up the 3 dollar bit than the 30 dollar one. Plus learning how to do a good job on shit tools makes you that much better when you get the good stuff.
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Is there anything I can do to save this tree?
Seems like one half is dead, there are many holes in the tree I can see that older, previous branch cuts never healed properly
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>>1204315
Much of that tree is indeed dead. Once the bark starts coming off that means everything is dead under it. You have to cut off all the dead branches because they are more likely to break and drop on someone. They also look like shit. It will be a lot of work and may not be worth it. A huge portion of the trunk is dead also. I doubt the tree will ever recover.
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greetings anons,
i am looking for some help about a project i am planning on undertaking.
i want to build a brick pizza oven in my garden before the summer is over.
do any of you have any experience with this? if so, any pointers would be greatly appreciated.
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Everythings online, what fucked up my oven and bbq was having normal grout. Theres special heat stuff you can buy.
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>>1203924
is it straight forward enough to actually build the structure? i'm an absolute newbie when it comes to construction
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>>1203924
>grout
heh you also need firebricks I guess
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I'm losing my shit here. A 3" long ruler or straightedge or whatever you want to call it simply does not exist.
What can I make that's a good facsimile? I would prefer something transparent and durable. I just need a tiny ruler for making straight lines in my planner when I'm on a train or something - I do a lot of dumb nerd shit like making dungeons for this campaign I'm running
Here's a picture of fucking purple glue. Kids these days get all the cool office supplies...
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>>1203890
What is the dumb excuse preventing you from cutting down a normal ruler?
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I'll sell it to ya for 20 bucks. I'll even cut it to 3 inches for ya..
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>>1203894
... I'll see myself out.
Anonymous
Acrylic cases for projects 2017-06-30 03:52:47 Post No.1201850
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Acrylic cases for projects 2017-06-30 03:52:47 Post No.1201850
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Acrylic cases for projects
Anonymous
2017-06-30 03:52:47
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How do I build my own acrylic cases for projects? Acrylic sheets are cheap and available in plenty of places. Laser cutter shops are popping up everywhere and charge like $15/setup $1/min of use. Or if I'm feeling adventurous I can get an acrylic scoring knife and break/sand sheets to what I need.
But I'm retarded when it comes to designing something like picrelated. How do I come up with designs like that? Is there a reference anywhere?
I want a nice enclosure for some electronics that opens at the top with a hinge. But really just interested in learning how to design small project boxes. It sounds simple unless you try to think about what you actually have to do.
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>>1201850
Would love something that goes together with just thumb screws
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Start simple and work you way up.
Buy some IPS Weld-On 4 and some applicators and some cheap acrylic sheets. Practice making some basic boxes before you try and do complex ones.
Once you can weld a box together that doesn't look like shit start doing more complex shapes.
Laser cutter makes things way easier, but a dill and jigsaw can still do most things.
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Cut out joints and piece them together, like a 3d puzzle