Any suggestions on falling a tree for the first time?
I've used a chainsaw many many times but only cutting firewood that was already on the ground
>my life insurance is current
Chain and come-along are your friends.
Cut as low to the ground as possible to avoid having Mr. Tree hop the base and cleave your leg off.
>>917814
My first idea was to use my winch attached to a rope around a high branch with a very little pressure on it then just cut a wedge out of the tree and cut along the backside. Is this right?
>>917813
Reading things like this make me happy I can afford to pay people to do shit like this.
Or at least afford to rent a jlg to take it down piece by my self
what is this type of circuit board called - how are the traces made?
It's just a basic PCB. There are several ways to make them, but you could google "toner transfer" and "photographic method pcb" for the starters.
It's a regular copper clad board and it looks like the circuit was drawn on with a permanent marker then etched and then tinned to make it silver.
Markers are shit and rarely work well, I've had much better results with toner transfer.
>>921289
thx
ayy /b/ros, i need someo basic help with electronics:
I have an arduino (80mA 4.5V output source) and I want to use it to switch a circuit ON/OFF
wat do
pic related, someone suggested it, but it doesnt work.
Is the - (or GND) of your battery connected to the GND on your Arduino?
Check if you used the same GND with the arduino and the power-supply in the switched circuit.
Have you connected Drain, Source and Gate correctly?
Not a FET, an ordinary transistor
So I need a 5uF >200V capacitor to replace one of those old wax film ones in some old gear, the problem is that that isn't a very common value/voltage for caps nowadays. Is there any easier alternative to finding one of these? Can I run some in series? Use 4.7?
>>921714
http://www.digikey.com/product-search/en/capacitors
Plenty of 5uf 200v+ capacitors in every type of chemistry.
>>921714
A 450v rated axial electrolytic will cost you most of a dollar at justradiosdotcom. They have many types and configurations mostly geared toward higher voltage builds.
Hmmm...
I want Captain Phasma armour, so I found a bunch of various storm trooper armor making techniques on the internet, I need a good balance between accuracy, simplicity, and cost.
I am considering:
Paper mache
Cardboard and bondo
Forming from PVC
and variations of all of these. What other techniques are there? And which provide the best cost to simplicity to accuracy ratio? Is it a better idea to just buy a suit?
The problem is that while all of that would be great for a regular stormtrooper, they aren't gonna give you the metallic look of her suit.
>>921696
Couldn't a chrome paint get the job done?
>>921697
chromed-looking armor on plastic is always a pain. Chrome paint usually can't do any better than shiny, even with a massive amount of prep and work, and it enhances every single possible flaw and structural wrinkle. Working from perfect vac casts the best bet might be vacuum metalizing or chroming, maybe skinning the parts in some kind of mylar-like material and bonding it smoothly.
If I wanted to start making some music as a side project and/or hobby. What type of program(s) would I need and how much would it cost? Would genre matter? What about recording equipment how much would that cost and what exactly would I need/ what is recommended ?
Google these questions. It sounds like you have no fucking idea what you want to do. Asking giant general questions and wanting specific exacting answers is something a lazy fucktard does. Your music will probably suck ass.
>>921390
A few years back when I played with making songs, I used Cakewalk Home Studio and it had everything for recording mixing down separate tracks of audio and MIDI.
You could use audio loops with it but it was not real easy to do.
If you want to make techno/loop music, then there is programs targeted at that--Fruityloops (now FL Studio) is a bigger one.
Plus there is freeware/Linux programs too. But they are usually pretty shit compared to the ones you pay for.
-------
As I saw it, PCs are great for mixing down but aren't real good at the actual "recording" part. You can easily spend $2000+ trying to build a PC that has the input ports you want, runs totally silent AND has no lag issues when recording.
Nowadays you can just go spend $300-$400 and get a portable multitrack recorder (flash or hard drive-based) and it is way easier to use, is portable, comes with phantom power XLR ports and has no noise or lag problems at all. You just gotta copy the recorded files onto your PC for mixing down and adding effects.
{pic unrelated}
Old thread >>895624
>open source community
http://reprap.org/
http://forums.reprap.org/
>buyfag buyers guide
https://www.3dhubs.com/best-3d-printer-guide
Any number of Reprap kits out there
>basic 3d printing FAQs
https://opendesignengine.net/projects/vg3dp/wiki (lots of useful stufff)
http://www.reddit.com/r/3Dprinting/wiki/index
>what kind of filament do I want
http://support.3dverkstan.se/article/28-material-guide
http://www.matterhackers.com/3d-printer-filament-compareComment too long. Click here to view the full text.
So I'm seeing a couple of really good instruction sets for building your own printer, but I'm wondering how the quality is to something made professionally.
All of the test prints I've seen have very obvious imperfections. This isn't a huge problem because I figure you could always go and sand stuff down a bit, but I also wonder how strong the material is in comparison to traditionally manufactured plastic.
A 3d printer would be very convenient for making custom robotics parts but I want to make sure that it will hold up to a certain level of...
Comment too long. Click here to view the full text.
>>910102
Every plastic part in the picture you posted was 3d printed and they can withstand the forces required of a 4-axis robot (the printer). If printed on the printer in the picture, you can DIY something similar; I have an all leadscrew reprap.
So to answer your questions:
Probably.
Yes.
I dunno.
>>910121
Good enough for me, anon. Thanks a bunch.
I have every tool you could think of needing for hobby woodwork other than a band saw.
What bandsaw do you have? I've been looking at a 12" bandsaw for light moderate use.
this is DIY, build one.
https://woodgears.ca/bandsaw/homemade.html
plans included
>>921472
I've considered it and decided against it. Maybe in the future I'd consider it though.
>>921450
Find one of CL for $50. Use it until it dies.
Can I tap 1/2" stainless steel pipe by hand or am I in for a bad time?
>>921560
Not with that mastercraft shit you can't.
>>921565
What would you reccomend
>>921567
a pipe tap and die set to being with
How can I get my computer to play though the speakers of my tv?
I have it hooked up with a VGA right now, or can I only use computer speakers? Is there a way to hook it up to a surround sound system?
The tv
The aux cord on the vga didn't work
>>920479
you could use an aux cord
Sup diy. I have always wanted to be a jeweler as a hobby ever since I had a job selling jewelry 15 years ago. I am finally going to start getting my tools together and I am curious as to if anyone here knows anything about it. I really would like some ideas on where to pick up scrap jewelry I can dismantle and melt to have my own metal stock.
>>921209
Should prolly start with silver or copper rather than gold since they're way cheaper.
>>921273
http://libgen.io/get_new.php?md5=35037d057bf5f0c87d30242b3ee1c370
I literally always thought this gif she was eating fried chicken until I just read "Poo" on the box.
Anyone here experience with saws like these?
I have one similair to the one in picture, except its PTO driven.
Main question is what speeds it supposed to run.
>>920898
PTOs only come in 2 speeds unless your shit is 100 years old.
6 spline shaft, 540rpm
20 or 21 spline shaft, 1000rpm
my gut feeling is that 1000rpm would be sketchy as fuck on a blade of that diameter.
>>921548
Sketchy, but hilarious
>>921575
This may be relevant:
http://opensourceecology.org/wiki/Sawmill_Research
Don't ever rev it or they can shatter.
Everyone wants to go off the grid with solar panels and such. But how viable would it be to make your own little coal powered electrical plant in your back yard? Its a simple process, and I live in the middle of nowhere and have access to coal. Thoughts?
Boiler and turbine maintenance is not very DIY. There's too much knowledge and tooling to half ass it, and shit explodes big.
Maybe make a coal slurry and feed it to a diesel engine tuned for it.
How are you gonna source coal? Solar and wind are good for OTG because it's always shining down or blowing through.
>>920582
High-pressure boilers of a size practical for your application are not Amateur Night projects; they're dangerous as fuck and could explode with the force a a thousand suns if not maintained and managed very carefully. Might also involve a permit/license.
Like another anon said it might not be cost effective or easy to source coal. Might be better with a sterling engine that will run off any kind of fuel. Bio, wood, coal, charcoal etc. Probably not very efficient though.
Could always pull out a diesel engine from a car or truck and repurpose it as a diesel generator.
Hey diy!
I would like to make myself a small lift to lift my computer tower from underneath the window to in a direct line out the window.
My plan is to just have the actuator mounted on top of a box that's on wheels that is just small enough to hold the tower underneath the desk when not in use. The actuator will be fixed to the top of the box and a plate on the other end for the tower to sit on.
Do I need something to stabilize the platform seeing as the only thing holding it will be the single actuator shaft?
Looking at designs for bigger...
Comment too long. Click here to view the full text.
>>920617
>Do I need something to stabilize the platform seeing as the only thing holding it will be the single actuator shaft?
From the ones I've handled, yes. You would need some kind of rack arrangement that would move up and down, and then the actuator just does the lifting.
>I am also having trouble finding how loud these things run, is the motor constantly running while under load or just while lifting?
loudness depends. The motors only run when they...
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>>920617
These things are just a geared down DC motor that drives a worm drive that extends and retracts a rack unit.
They also have a limit or reed switch at each end of it's stroke to disconnect the supply to the motor.
Also bear in mind that you reverse the direction by the polarity of the DC voltage applied to the motor.
Hope this helps.
>>920617
You're building a mechanism to eject your computer out of the window? Why? In case the fbi knock on your door while you're fapping?
Hey have 66 lead acid batteries to play with, I'm thinking of making a shitty electric car. What would you do wit too many 12 volt battery.
They were used as a backup power supply for a casino, maintained well enough. I
don't really know what I would do with so many
>>920603
Bomb proof home backup system?
You probably use 5kw/day at most and assuming I lowball the batteries (50 usable batteries * 70 Ah * 12 V * .80 % efficency) you'd have around 35 kw of energy to use and I'm really lowballing this. You could use the rest to make a kickass car or a really strong welding setup. I'd talk to someone who does home backup/solar stuff.
>>920601
I'd use it as part of an off the grid electrical system for my house (48v 1283.7aH in series-parallel ), until they died in around the 5 year old mark.
How old are they? They might be worth more just as scrap. If so you can make a DC stick welder out of them or a furnace. Make an electrical car or a few electrical gokarts. They'd be great for one of those solar-powered Elf vehicles/bicycle hybrid things. There's lots of plans online for similar vehicles.
https://www.youtube.com/watch?v=pQQzLMIXOJ0