Sup /diy/ Im buying a mini lathe tomorow and i was wondering if any of you guys have one and what projects or tips you might be able to offer me if you would be so kind. Ive used lathes before but ive been wanting my own for the longest time so im going to buy a cheaper one to start off with and work my way up as I dont got lots o cash at the moment.
>Anyone got any projects there proud or shit I love to see others works.
>>901625 I meant for the security system itself. It needs a way to dial out to you. If where ever it is going to be placed is within range of wifi then that would be the best and cheapest option. Next best would be using a land line or a cell network for connectivity but they both have monthly costs. You would only roll a custom radio solution if you're so far out in the sticks that there is no land line or cellular options.
Hey /diy/, quick question. Looked for a QTDDTOT thread but found none. Anyway:
I'm building a semi-permanent shelter out in the woods on a friend's property and I have it mostly completed except for one thing: a fireplace.
Now the whole structure is something of a wigwam debris hut, it has a wooden framework that i wove with flexible branches and then covered in bark and leaves. Obviously I need to put a little time into how to safely have a fire inside for cooking and heating. I was thinking of getting some kind of chimney to route hot exhaust and... Comment too long. Click here to view the full text.
I found no information on gel wrist rests, although there are instructions online on how to do the rest of a mouse pad. What are the rests made of and filled with? What would be a cheap/easy to get alternative?
I've just been learning how to use these. I have one IC and I've powered a string of LEDs with an Arduino, then moved onto driving a 1 digit 7 segment LED display and then a 4 digit version with multiplexing.
Now I want to elaborate with multiple LED matrices to make a large (at least 24 by 24) matrix (out of 8 by 8 ones most likely).
What are my limits with a single Arduino and its 5V supply, if I start daisychaining shift registers to drive such large displays?
>>901539 with a shift register like that you can put all the leds on at the same time. usually with more leds you make them into a squareish matrix, have a string of shift registers on the x and a separate set on the y. turn on the leds one row or column at a time
then you calculate the power drawn from a single row or column because thats the maximum draw at one time
max draw from arduino is probably like 1A or something have a look at the regulator see what its rated at.
I have a small project where i need to power about 2000 LEDs. Just normal 5mm 3v leds. How would i go about doing that? I was hoping some old computer charger could do the trick, but i'm far from an electronics expert, so i don't know exactly how. I dont need to be able to control any of them individually, they have to light up all at the same time. I was hoping to make a big grid, and wire all of them in parallel, so i can hook them to a single power source. If i did that, and have a 19V DC computer charger, what would i need to do, so i don't... Comment too long. Click here to view the full text.
>>901461 I did dipshit, i asked if it was enough to put a resistor on one of the wires, and how big it would have to be in that case. Now, can you answer my question, or are you an idiot from every angle?
A buddy of mine owns/runs a tree trimming operation. He heats everything with wood. Has a wood boiler for how water. One for heating the house including radiant floors. Runs a smaller third one for heating a pool.
The units aren't cheap but you can't legally /diy/ your own without getting it tested which would costs tens to hundreds of thousands. Plus he has unlimited wood.
You could possibly /diy/ your own pool heater because it's probably not subject to the same requirements as a water heater or boiler.
I have a PSU similar to this (this is just a Google image) and I've broken it.
When I was charging a battery with it a while ago, I noticed that once I turned off the PSU, while the battery was connected, the voltage needle indicated the voltage on the battery. Based on that, I assumed that you could also use a PSU as a voltmeter.
Then I tried to do the same thing again some weeks later and, I don't know why, but the wires immediately went super hot, burning my fingers and melting the plastic sheathes.
Now the thing doesn't turn on. Why did... Comment too long. Click here to view the full text.
You're supposed to have a shaman present for the real experience, and he is supposed to guide you on your spirit journey
>Purple Potato, diced >Root of a Mnago tree >Coca Leaves, to taste >3 tbsp Pisco >Water until it's almost covered >Bring it all to a boil >Simmer, then stir and mash until it... Comment too long. Click here to view the full text.
Hi /diy/ looking to get into CNC. Routing at first and maybe printing later
Could anyone recommend some software to begin this journey, particularly since 3D design would have to go to CAM I would assume. I have experience with vector art and .svg with lasers, but not much in the world of 3D.
Would be nice if it has the option to create shapes by entering numbers, like number of vertices, length, width, etc.
>>901912 Well the obvious would be a very stupid thing indeed. Google's bubble searches are designed around common searches, most people aren't trying to host milling equipment in their house and those that run a full scale business are likely buying whatever a high end manufacture recommends. So 3 days of hunting articles off a search for hobbyist levels results in fuck all of a definitive answer for beginners.
So I've been trying Autodesk Design, FreeCAD, and Sketchup, but without the backing of someone... Comment too long. Click here to view the full text.
Anyone got experience with soundproofing? I want to nail two doors together, with an egg shell layer between them, will that work? Any other cheap ideas that I can use? I am desperate, I am living with my aunt, who is bipolar, and I need a way to insulate myself from her madness.
An old Fujitsu laptop won't boot except from HDD. The BIOS password works, but the BIOS itself is altered and won't allow changes to the boot order. This makes it impossible (for me?) to flash the BIOS.
Now I assume disconnecting the CMOS battery will not erase the password. But will it reset the BIOS to factory default?
I take the password still working as an indication that it is saved outside the BIOS, which I assume is hacked. So if removing the battery does not affect the password, will it affect the BIOS?
Could... Comment too long. Click here to view the full text.
No, removing the CMOS battery won't change the BIOS code... Sounds like you need to reflash the BIOS directly. You're probably not interested in investing the time to do that, so learn your lesson and buy a new one.
>>901240 yes disconnecting the cmos battery will reset the password and clear the cmos. which is like the ram that the bios runs in. it will also force the computer to refresh the cmos.
source: used to work in a computer store where the same customers would repeatedly return because their password "simply didnt work but they were typing it in properly." some laptops require long disassembly in order to access it.
the password is saved in the cmos, not the bios. even the fancy drive locker bios shits can... Comment too long. Click here to view the full text.
Alright guys, I need help with my lab report suggestions. The problem is that I made a linear Voltage controlled frequency generator and am getting a 'ramping' effect on my integrator circuit. Do you guys know how i can possibly solve this? The output i should be getting is perfect square and triangle waves. pic related.
What are your favorite cordless tools? I'm looking to buy into a set (shared ecosystem), and want to make sure I buy crap and have to start over.
At work we use 18v DeWalts (pic related), they're pretty good, but I think they've been supplanted for the most part by their new 20v line. We have 1 20v cordless and it's much lighter in the hand than the 18v.
My boss has a white makita drill and impact driver, they seem to have held up pretty well to our abuse.
I haven't had much experience with other cordless sets, we have... Comment too long. Click here to view the full text.
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