Archived threads in /diy/ - Do It yourself - 387. page

>>1060751

Try the /ohm/ thread, they can help

>>1060751
the volume pot on their website is a normal 3 pin pot on a pcb.
i guess its 6 pin to take signal + ground and they do something with the bridge and neck pickup combining too
just tie the grounds together and put the signal through center and the other on the left or right pin depending on what way you want to turn it to make it go up.down.

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>>1060735
I plan on reading the CNC Programming Handbook to be able to use and program the FANUC controller that I have absolutely no experience with.

>>1060738
As an intro to machining, I plan on reading Machining Fundamentals. It seems to have a good reputation as a intro on the topic of machining.

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>>1060740
forgot pic.

With the mill I plan on beginning with cutting mostly aluminum parts and doing small scale production.

I thought about getting the Tormach PCNC 1100 but after adding all the options (ATC, Controller, Enclosure) which I'd like to have on a CNC the price is a lot closer to a used 4020 mill like the Samsung MCV-50 in OP. I'd also rather not be stuck with Tormach TTS tooling when it's time to buy a CAT40 machine.

>>1060599
7 shooter?

>>1060599
the rendering is really bad because you can't see shit

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>>1060599
designed a little rocket for shiggles a few years ago. uses pvc for the payload casing and steel pipe for the motor body, designed for using a rocket candy fuel block.

It's probably too late. Because it's already cut, it's going to dry fast, and that means it will crack.

Possible fix, glue both faces down with elmers/yellow wood glue to a piece of plywood or something. wait 3-6 months, then use a heat gun/water/clothes iron on steam setting to soften the glue and get your slice back.

>>1060461
commonly you need to seal the ends with wax or 2-6 layers of latex paint.

Even with slow drying a ring like that will really want to crack. Waxing heavily wont hurt. People also treat green wood with polyethelene glycol, it replaces some of the water, so even when it is fully dry, it doesnt shrink as much.good luck

Describe what you consider light weight, give some dimensions

Also what application do you have?

>>1060447
The application is a combat robot similar to the one in the video. So as light as possible. 5oz would be amazing. Half a pound would be ok. 10oz is probably too much.

>>1060449
>>1060450
Also note that I'm assuming 850psi since that is what most co2 cartridges seem to be.

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currently I've been plugging in my 5V power source into the 5V power Pin for the Pi. I figured this would "power up" the other pins, or am I wrong to assume this? I tried running diodes over other pins to see if anything was flowing through and it doesnt look like it is. Is it possible my software was just set up incorrectly? I feel as though I just dont know how to physically lay a circuit out-- which is part of the reason I'm doing this project.

>>1060172
Have you tried lighting one channel at a time to see what corresponding lights actually light? I get wires crossed like that all the time

>>1060172
What's Max channels on that? I have a gemmy light show, does a pretty good job for the price, but only 6 channels, and not expandable

>>1060068
I would probably buy a new stem for the bowl. Like these: http://www.ebay.com/itm/NEW-3pcs-Ebonite-vulcanizates-mouthpieces-Stem-For-Tobacco-Smoking-pipe-Fzui01-/131703816645

Its more sanitary that way anyway.

>>1060068
you could most likely remove the broken stem part from the bowl with a stud extractor then either glue the extracted part back on the stem or better still just buy a new stem, as stated it will be more sanitary, if you have no intention of actually smoking the pipe then gluing the stem back together will suffice I guess, personally I would just buy a new stem either way.

well, have you considered pulling out a multimeter and measuring it?

>inb4 i don't have a multimeter

>>1059564
whats the other end of the cable? hdmi? or is it the same? i dont think vga has audio, so if the other end does (like hdmi maybe) then youd have a way to get sound from the vga source

>>1059570
I have a multimeter but I don't have access to the podium at the moment.
>>1059573
I checked in the back.
It appears to convert to component, which means still analog.
It was a rat's nest of cables back there though, and I didn't have complete access. Whoever set up that podium should be shot.

Probably not. A true bench supply can have two independant outputs with isolated grounds, so you can hook the two supplies together to get double the output - A PC power supply only has one ground and so cannot be bridged.

Hooking the +ve and -ve 12v together will give you either a bang and some smoke, or you will have 24vAC (connecting two half wave signals together? Depends how good the smoothing is I guess) but I'd be curious to see what you get.

>>1059466
The -12v in some supplies has a very small capacity. Check the specs.

>>1059466
Yes, but the device really needs to be "small". The -12V output is pretty weak, sometimes limited to just 500mA or so.

Wouldn't high silicate steel be better

Probably can't hurt to mention 'where' in the world you are, I mean I can find commercial sources of iron here but I dunno where you are.
Also- is it going to be cast or machined?

You probably want laminations otherwise you'll have eddy current problems.

presently working on a router table for a regular router, and possibly another for a dremel to use with 1/8" bits

got a tap a while ago for the dremel threaded "tip" but the original plans kinda fizzled

also making a new insert for a table saw

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I've been making sparring swords to practice for sca tournaments with my mates. I've heard hickory is a good wood to use, but I have only been able to find red oak and pine. the oak seems to last quite a bit longer but it also splinters quite a bit more, any advice?

Does that thing have plans?

What a useless video

>>1058023
I can't wait for some dumbass to use regular wire instead of nichrome wire for the lighter and be surprised when the battery catches fire.

>>1058023
I liked the last one, the tripwire alarm.
The hot glue gun though, cringed every time that thing was whipped out

>>1055868
post butts

>>1055868
Was there wall paper along the top half? How are you going to make it smooth, plaster over it?

>>1055868
I suggest cleaning up the room

Good idea, I did one of these threads a while back

If anyone has any questions for a mechanical engineer (that works as an electromechanical engineer) US based, I'll answer them

I primarily work on hydraulics, supercritical fluids, and cryogenic cooling (also general thermodynamics and heat transfer)

>>1058862
>cryogenic cooling
do you ever freeze and revive anything?

>>1058858
Whats that picture op?

So I have a 55 gallon barrel wrapped with approximately 930 feet of a communications wiring. It is 12 strands of 24 gauge wire. I am trying to figure what the approximated gauge all 12 individual strands together would be equivalent to.

I'm a mathematician. Not sure I understand the point of this thread though.

Oh well, have a bump for acknowledging my shitty field.

I am essentially trying to create an emp generator. Can this put out anything significant or is the length of wire too long? Thinking DC power source. Having a hell of a time dealing with voltage drop and the initial figures of what guage 12 24 strands equals.