Archived threads in /diy/ - Do It yourself - 548. page

>>990611
for simplicity a flash adc will work but is pretty component heavy
if you want something interesting try a sigma-delta adc. the output is digital but its not BCD

>>990611
>quantizing a signal in analog
quantizing literally means assigning a discrete value to an analog signal
the very act of quantization means that you shifted into the digital domain

>>990611
You know that the ATMega328 ADC has a built-in S&H, right?
One of the simplest ways to perform AD conversion is the single slope conversion (ramp up voltage at known rate, see when the input voltage is exceeded). There are better versions of the same idea, like dual slope conversion. Google explains it better. You can use ATMega328's analog comparators or even normal digital pins + timer for a crude single slope conversion.
Slope converters are generally slow, though. Typically 100kHz ADCs use successive approximation, meaning an N bit DAC + control logic. Google SAR ADC.

100kHz at 8b is possible with relatively crude design, but what are you going to do with your 100kB/s data stream?
And like the other anon said, large part of ADC is digital.

Fuck off

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I'd think you're kind of a dick for causing a localized collapse of cattails around the most accessible part of a public river. Did you plant the cattails? You know that's how they make more cattails right, and they are not very successful individually, right?

I would expect there would be very little difference between cotton and cattail. Their seeds operate fairly similarly, it's going to be based on cellulose. You could just buy some cotton batting for $not much from a fabric store instead of trying to setup your own cattail-gin and carding station and I don't even know how you'd go on to make batting from cotton/cattail from scratch. That's also a fucking hell of a lot of cattail.

You probably have a sample of cattail already? wash it and smush it around a bit, because that's exactly what will happen in your jacket. How much volume do you have left of cattail? None? Now imagine how many fucking cattails you'll need so there will be a big enough matrix of it to actually support itself

>>990162
>>990167
why are there so much troll's on /diy/ lately.. who the fuck sent you here, actually better yet. why the fuck did you stay.

beating the cattail isn't to remove the seeds, its to break it up making it more fluffy.

cattail works on the same principle as goose down, compressible. yet creating those miniature pockets of air needed for insulation to work correctly. one shoot can effectively fill about four square inches of space. two square inches if you pack in in tightly.

Also where I'm collecting the cattail fuzz isn't going to collapse any natural sort of Eco-system. they're all retention ponds built because local roadways displaced water. the cat-tails are planted there to make the area look more pleasing and to keep the grass clippings where the county mows out of the water.

and trust me, Florida got plenty of cattail. I'm not going to make a dent in its population.

Tissue clone with agar is easier

>>990023
>use wax paper, as in, baking paper
>bake wax paper on high for half an hour to sterilize
>let cool
>make print

I use aluminium foil though.

glass is easier to get all the spores. but you dont need glass. also it is difficult to store 100 plates of glass and painful to transport. paper or alfoil you can stuff in a folder and its easy to cart.

>cover part of print in sterile water
>if water runs off the print dont use it, you've stuffed it
>use tip of syringe to scrap off spores into the thin layer of water
>suck up spore water

>>990282
oh would you fuck off, it is not. agar is not easy. would not reccomend taking a biopsy to someone who cant even figure out how to put a cap on a piece of paper.

>>990285
You spelled aluminum wrong :^)

>>987234
No, it's because it makes a better bond if you ensure that both faces are completely coated.

>>987241
Also, a thick layer of glue on one side will be less even than a thin layer, because surface tension will help to distribute the glue.

>>987234
In woodworking its better to apply more glue and have some squeeze-out then to apply too little and only find out when you start clamping things up.

Also >>987241

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>>985433
The sherline lathes are fucking fantastic, if that's not too small for your needs. They will absolutely handle steels and even cast iron, just don't expect to be taking black-ass-thick roughing cuts at speed.

Pic related

>>985448
OP here, that looks right up my alley, I'll give it a look, thanks.

>>985450
forgot to mention, they also sell a similar vertical mill which uses the same motor, DRO, and CNC servos as their lathe, so you can buy one interface box and use both tools by just switching the cables over. Their CNC is based on EMC2/linuxcnc which isn't Mach but definitely enough for the home or hobbyist user.

When you say "hiding place" do you mean "from the cops", "from niggers", or "from family or visitors, aka for fun"?
Either one can greatly affect the result.

>>984796
If only there was a way for you to hide your autism

The rectum works pretty well for felons.

>>983929
I use old ddr2 to help compensate for Alzheimer's.
Also monsanto is helping us with our population numbers, idk if that counts as biohacking or not.

I've done a lot of research into magnetic subdermal implants, they give you the ability to sense electronic devises and others magnetic fields from a distance

I've watched spiderman once

>>991166
Would help if you mentioned what job you are talking about doing. Read a book.

Haste leads to waste.

Take your time, think 3 times, measure twice, cut once.

>>991170
But don't take for ever.
You don't want to be the guy who always posts on youtube videos, "oh you did that nice but when I finally get off my ass to make mine it will be a gullibillion times."

literally rtfm

>>991062
I already read the fucking manual and it doesn't say

>>991056
It's the key is your kid locks themselves in the bathroom or whatever. You jam it in the hole and it unlocks

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>>990953
Should I just try to replace the primer bulb? It squeaks and there is bubbles, but nothing actually comes up.

>>990956
The primer bulb wouldn't stop it from running.

>>990958
Ok, but it sounds kind of like it's not getting any gas.

>>990941

the first thing i would do is really look into how the thing is made, just because it can carry a lot of weight does not mean its designed to hold the weight of the wheels/axles ect from above. last thing you want is the bucket rusting from above then dropping half a truck on your head.

>>990941
we can help you make a jump to flip it over with some shipping containers and pallets

Maybe but if somone saw a nice dump truck in a scrap yard they may try to salvage it or maybe even flip it back over to try to flx it up

Go check out the 501st legions website, they have plenty of tutorials on what to do.

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http://starwars.wikia.com/wiki/Woodoo_hide

5 seconds on Google

>>990663
Honestly automotive paint isn't that expensive.
Go to your nearest auto store, get sand paper primer and black or extremely dark blue auto spray paint, rough up the surface, prime and paint it, good amount of clear coat, sand it with fine grain sand paper and give it a quick buff with some turtle wax or something.

in total should cost maybe $50 at most.

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>>990597

>>990598
>>990598
No, not prime time yet. But good for diyer.

You dont need to stagger tiles on a wall that are the same type and size. It makes it look unfinished and uneven.

>>990598
the border at the top looks strange. if you can take more pics that arn't shit we could give better judgement

>>990430
Well that appears to be C or a variant of C. Every variant I've seen requires includes and defines to be preceded by a #. Have you tried doing #include #define and then recompiling?

>>990433
sorry my bad. Actually there is . The code is working. BEcause i tested it in simulation protheus 8.

Here is the correct version of the code

#include <16F84A.h>

#define pir input(PIN_A2) // Switch on RA0

void main (void)
{
set_tris_a(0x11);
set_tris_b(0x00);
output_b(0x00);

while(1) { //Forever Loop
output_high(pin_B1);
output_high(pin_B2);
}
}

>>990435
Oh ok, So all I see this doing is setting pins b1 and b2 to high forever. You have labeled pir input on pin a2, which I assume means you are trying to use a passive infrared sensor to trigger events on pins b1 and b2. Is this correct?

>>990331
Anything old from thrift stores, craiglist, second hand shops, yard sales, etc.
Do some test stitches and check if everything works.
Don't spend more than 50-100$.

>>990450
I forgot, I use the Janome 2212 in a local sewing workshop from time to time (branded as elna something - same model). It's an alright sewing machine, bog standard beginner model.

It works for what it is, but don't expect to have a good time sewing over 3-4 layers of denim (for example when making pants).
I have an old Ideal/Brilliant 137 (again, identical model marketed as two brands) at home which works a LOT better.
Here's a video so you know what I mean when I say "old":
https://www.youtube.com/watch?v=qExQcGwb34M
If I compare the modern (i.e. like the Janome) entry-level machines to the older entry-level machines (i.e. like mine, or an old mechanical singer or pfaff with external motor), the older machines are much much better at handling difficult fabric and more reliable in general.
That is, if they're both maintained properly.

On the other hand, you'll have a easier time finding special feet, and other accessories for the newer machines.


In my experience, it's better to get an old one.

It doesn't matter what machine you use within reason.

My grandmother can pretty much alter or make anything with any decent machine.

Seaming and sewing is a skill no doubt. Master that and you can make shit by hand.