Any good book about pic microcontrollers? Also general PIC thread. Have you ever programmed for a PIC microcontroller? What have u done? If not, what the fuck are you waiting for?

How many cats do I need to get about 20-30 squirrels out of my attic?

My cat has never been outside before and when I pushed her fat ass up there a squirrel chased her down

Here's the project: I want to make a fake fire, you can see them around at restaurants, casinos, etc... It's usually a fan that blows pieces of fabric with a colored light shining on the fabric to simulate a flame.

My specific plan is to hang this up as a halloween decoration and use 2 shades of bright blue LEDs to simulate a Hinotama. (see picture. It's the "ghost fire" of japanese legends.)

I've been working on this for a while and I can't get it to work. I'm using a variety of computer fans, from 1" to 5". I've moved up to server fans that sound like damn vaccuum cleaners and it still won't make the fabric flames move.

I've tried mounting the fabric on straight sticks over the fan, and I've tried mounting the fabric as a tube. Neither worked. I've tried using cardboard from a toilet paper roll to make a 1-2" long tube to channel the air in the right direction and it only marginally worked.

I think it might just be too heavy a material. I'm using whatever Jo-Annes calls "silky solids" since that was the closest they had to actual silk.

So, if any of you have made a fake fire before, what kind of material did you use for flames and are there any other tips you can give me? It'd be much appreciated.

Hello /diy/, /g/ here

I am considering making some small chemical powered rockets, does anyone have any experience or a decent guide, specifically about how to make the rocket fuel and fuse?

I have access to a wide variety of chemicals due to working in a lab, but unfortunately little in the way of ammonium nitrate or potassium nitrate. I'll write a list of likely chemicals which I have easy access to and if anyone can point me in the right direction I'd be grateful.

I'm currently leaning towards solid fuel, which means a paste or impregnated newspaper.

The chemicals I can use are:
Potassium permanganate (and sugar)
Sodium metabisulphite
Ammonia
Acetone
Iodine
Hydrochloric, sulphuric, malic, lactic, methanesulphonic, orthophosphoric, chromic, acetic acids
Sodium hydroxide
Hydrogen peroxide
Urea
Bromine, chlorine (as hypochlorite)
Starch
Methanol, propan-1-ol, -2-ol, methylated spirit, ethanol

Probably others, as well as equipment such as a still and fume cupboard etc.

Currently I'm considering a TATP-permanganate mix, but I'm concerned about making TATP in any decent quantity due to the stability issue.

I can also access household chemicals such as matches.

Any design info would be great as well. I am going to bed for a few hours but I'll check this thread in the morning for ideas.

Hi /diy/.

I'm a NEET with about $10,000 which I'm willing to spend on expanding my living space. I currently occupy a very small bedroom in my parents' home. While I intend to keep using this bedroom to store my belongings, I thought it would be nice to spread out a little as well (I would like to buy a sofa and maybe have my own bathroom).

So, I have two ideas. Either I build a tinyhouse in the backyard, or I build a partition for myself in the (presently unfinished and possibly structurally unsound) basement. Both ideas come with their pros and cons of course as I explain in pic related. Which one do you guys think I should pick?

I recently came into possession of 3 stepper motors but I'm not sure what to do with them. Does anyone have any ideas for projects that would make good use of them

At the moment I'm considering trying to make a CNC but I don't know if I'd even use it for anything.

I need glove help.

I work in coveralls and am proved generic leather workgloves, or rubber gloves with elasitc cuffs.

Wear generic coveralls, with a single button on the sleeve ends.

The work is incredibly dusty(various powders, dust mask always on, etc). And I'm sick of getting dust in my gloves.

Problem with leather gloves is the cuffs are too short/split and material gets in your gloves.

Problem with the yellow rubber gloves is material gets up your sleeves.

Is there some sort of thing you can put on the end of your sleeves or gloves to stop this?

Something like boot spats but for your gloves/sleeves.

Go through gloves fairly quickly(grease, getting stained, torned etc) So investing in gloves themselves isn't an option.

What did you build today, /ohm/ ?

https://www.youtube.com/watch?v=ATNHuoVfUsY

I don't want to get jewed so I thought it'd be better to confirm from you guys:
• There's a billion laser cutters in the market. How can I know that I won't buy a shitty one?
• What are the minimum requirements for cutting 3mm veneer?
• What's the average cost? I know I can get a ultra-shitty one for 700 bucks, but I've seen some Chinese "yes yes very good cutter" -types for 2000 USD. What's the catch? I just want to cut and engrave veneer.
• Is the software always shit?

Hey /diy, I made this guy yesterday from an old sawblade, i've also already made the primary bevel so the next step is heat treating. I don't know how this steel is going to behave, it probably does not have a lot of carbon, but im hoping I can harden it anyway. Im only a little worried because its too thin (1.5 milimeter) and it may crack or lose some material from oxidizing; looking for some tips so i can protect the blade while heating it.

Any interesting techniques you guys want to share?