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https://en.m.wikipedia.org/wiki/Silicone_rubber 575F. Sounds like zinc would damage it. Lead is OK.
yeah, I guess 100% of one's weight on 1 side is significant.
https://www.menards.com/main/paint/paneling-planking/paneling/fasade-reg-diamond-plate-4-x-8-pvc-wall-panel/p-1444423260561.htm. Most westrn toilets have hinged toilet seat and a cover over that. What if another hinged layer, at the bottom was diamond plate? Stand on that.
I might draw it up, but I'm not real motivated to build it. As for cartoons, I'm not much of a cartoonist, but I. Think it's a 5 frame comic: westerner steps out of shower, butt sparles with cleanness. Asian squats on toilet. Toilet with footprints, Westerner stands up from toilet with footprints on butt. Repeat frame 2- Asian sqatting this time with cicle an line across, indicating "don't do this
funny, yup. If toilets are getting broken, how hard would it be to have 1 stall with an Asian style hole in the floor?
one could take the squatty potty one step further. Build a platform each side o the bowl, same height as bowl.
adressing why they consider western method unclean may be important. Are butcheeks unclean in Asia? Could they put toilet paper on seat
if you can find hollow plastic tubes, a screw or bolt could go in the end. 1/2 inch pvc, maybe.
I gotta remember that phrase! Nice!No Go?
I've never needed permit or lisence. U.S. I think you need training above a D engine. Wildfire is more likely with rockets than guns. Perhaps that is the concern.
Ah. I'm not at all sure that electric will have the power to weight ratio you need.
There. I see it. Thanks.
Colin furze did somethin like this. Check youtube.
when I get a new car, the old one gets bored, lonely, and jealous. Then 5 to 15 years later, it rises again, like the phoenix from the ashes... or rust, in this case.
If you find a 5v charger for your car's cigarrete lighter, it will work for 12 v in, or 18 v in, or 7 v in. So if you don't find the exact right battery, you can adapt it.As for the initial generator, Seeing what's available is often helpful in prototyping. As for what is the best -scratchbuilt, or motor, I as a teacher would be impressed if you tried both and compared efficiency. Options for cheap motors: thrift store cordless drills, junkyard car window motors.
I received 1 or 2 of those once. Didn't know how to activate. Don't know if they expired. No idea where they are if they still exist.
what are advantages to pro
When you click on the image you get the full size.Ask Autodesk why they chop pics we add here ;) - Downunder35m
Yup. That's what I meant... I think. - Yonatan24
I have done that as a kid for a simple "electrocution device".If you connect a NC contact in series to the power supply for the coil it produces a very fast switching and in return a nice bit on your fingers if you touch it.So I would assume if you add a capacitor to the NO contact it will delay the opening until charged up enough.Another cap on a different contact can serve as a "battery" to keep the relay on for a very short time if it is switched in parallel to the coil when active and parallel to the battery when not. - Downunder35m
yup. I did a shocker once with this. 9V battery supply. Relay/cap circuit supplies chopped DC to the secondary(now acting as the primary) of a wall wart, and ba-bing-120v output.
yes. I think that's it. Thx, du35m. The pic is slightly amputated, but that's it. Positive to the top left lead, and, ummm...
yeah. I think that for a Buzzer, you don't need caps and resistors, but to slow it down for a bell, blinker, whatev, that's when you need em.
I know that there's some kind of circuit where you power a relay. It might be your schematic. You have to give power to the relay, and it turns itself off immediately, and on... and off... Really quickly. Then you put resistors or capacitors (Not sure...), and it makes the realy turn on and off slower. I have no idea... - Yonatan24
You mean something like this? - Downunder35m
MONKEY HUNTER PHYSICS!
http://letsmakerobots.com/content/fading-led-hardw...Scroll down to the post that says "it works
Suggestion: Get a 12v cooler, leave it in your trunk filled with water bottles and reusable ice packs. They draw about 50W or 3.5A@12V so you could continue running it for an hour or so without worrying too much about flattening your battery, although having a second battery would be a real bonus. You can get batteries with higher capacity than a normal car battery if it doesn't have to be able to provide hundreds of amps to crank your engine and it doesn't matter if it goes flat. When necessary, pull a cold water/coke/ice pack out of the cooler- it's much more efficient to just cool yourself rather than try to cool the entire inside of your car.
Why a battery?Check how cooling was done in the old days.A pottery pot of suitable size with sand in it.Everything inside the wet sand was cooled nice until the sand was dry or you left it in the direct sun.In modern times these designs could be matched with heat pipes in the sand with the hotend inside the car - or by using a fan with solar ;)
I like that. Maybe even on a separate, solar charged battery.
I'd guess ACs of electric cars are driven by an extra electric motor anyway as they lack that serpentine belt that drives generator, water pump, AC etc. in a combustion car. - verence
Also consider most AC compressors are driven by belt, so would need an additional motor, clutch and all...Might be easier to create an evaporative cooling system instead... - Downunder35m
According to Wikipedia, AC consumes about 3KW (or 4HP). That means it draws 3000W/12V=250A. A starter battery has about 36Ah - so it will last 36Ah/250A= 0,144h or about 9 minutes. Bring a lot of extra batteries... - verence
I'd make it of coroplast just like a regular cardboard box. Use grommets on the bottom seam, and lace it up like a shoe. Edge pieces only needed if abrasion resistance is needed (or for aesthetics)
well, shoot. Maybe this is an idea for hybrid cars only.
at one point, I was going to do this with cams and switches. But solid state is probably better.
looks like a double pole, double throw. It should be possible to bypass. And FYI, It's soldered, not welded.
craft stores? Foam is sold for insulation at home centers. I've seen shadow boxes made of yardsticks. Foamcore board is another easily worked option.
this might be a good topic to research in a (gasp) book. U may find one in an antique store.
suggested Google terms: atomic crystal structure shape. Maybe add : sugar, salt, quartz, fools gold.
can you let us know whether diamonds actually grow in the shape seen in jewelry? I don't think they do. Can u share your report once it's done?
lie on ground. Bugs will b seen against sky rather than against busy background of bushes, trees etc.
other options: those bubble rock things on the end of a fishbowl aerator tube. It's porous lava, iirc. Or can concrete be made porous with the addition of somethin
I think "shadow box" is the word. Google images. Maybe search instrictables projects.
in future, a more descriptive topic heading would help. "Powering servos" for example.
in my limited experience, 3d printed stuff is rather porous. Not conducive to tight plumbing fittings, nor to sterile surfaces.
actually, yes, you can get a fade-in. Just put a resistor in series, such that it limits current from power supply. A capaicitor in parallel to the LED will then draw most available current, leaving little for the LED, until cap is charged. Shutting off supply allows cap to discharge thru LED. Both on and off will have a fade in/out time if R and C are chosen well.
The technique with a sharpened tube is not to stab, but to rotate the tube as it is pressed into the material. I've done this with foam rubber, tennis balls, semi-hard foam, etc. Consider how you cut a tomato with a knife edge. you don't just press the blade straight down. you saw a bit.At this point, I'd say play with lotsa different materials until somethin works. ...and if there's a chance of 2 materials spontaneously igniting, try it small first. and outdoors. and _UnContained_.
Ok, makes much more sense now, sorry my crystal ball just came back and must be cloudy from the transport ;)Well, in such a case I would opt for a microcontroller like Arduino.If you check in the 3D printing department everything is done by PID control and temp sensors.Should be possible to get the reference tables for some common temp sensors.With that you take the inputs of both sensors to get the real temp instead of just a sensor value.Compare both and if inside is 5° degree warmer than outside for more than 5 minutes or so activate the motor to open.If inside is 5° colder than outside let the motor close.But a dual temp controller like the Rex 100 with two thermocouples should work too.Still requires endstops for the motor though.
perhaps I wasn't clear. If it is 85F inside and 80F outside, open. If. It is. 70F inside, and 65F outside, open. If it is 70F inside, and 75 outside, closed. See the complexity? It's a comparison of TWO thermostats. Hotter inside than outside? Open. Hotter outside than insi? Closed.
Power supply - thermostats - endstops - motor(s).If the thermostat says "open" the motor opens until the endstops cuts the power to it.If the other thermostat says "close" same with the other motor/direction.Basically the same as a gate opener just with thermostats instead of switches....
sometimes a bigbox store will sell damaged sheetgoods at deep discount. Is insulation yer option? What about floral foam?
can I ask about more details about what this whatchhoozit does? Or would that violate proprietary info?
yeah. Try the easiest thing first. If it don't work, ya didn't invest much effort. Using tubing to cut a plug (or a hole) is somethin I've done on the 1/2 to 3 inch scale with good success. U wanna grind somethin like a knife edge on the end o th tube, then rotate tube into foam (or rubber, whatever
depending on length and dia, you might sharpen the end of the tube and use it to cut a plug from foam.
just a capacitor might do the fade in/out bit. Try connecting it in parallel.
Voltage limiting can be done with a cigarette lighter to. USB adapter.
take home is good. Throwin stuff is always popular.
neon sign transformer arc.
1 2 3 4 5 123456 sevn54321
5 syllables first7 syllables second5 syllables thirdC
stuff that people, and especially kids interact with is good. Butterfly for instance.
Micro Mini Nerf Gun
I've some ideas. Don't feel like writing now. Pics later? Or giv u a hand if u r within 100 mi. Where r u?
"Five syllables First.Seven Syllables Second.Five syllables Last."copyright 2016
amusing! they do need to be adjusted with a wrench, though. No? like leveling a fridge, etc, Ya? not truly self leveling?
(or jumper to bypass the original switch). Then interupt the circuit anywhere, as u suggested.
if u can get th original switch to b always on, then u can switch it off with yer new switch.
this might be a matter of "nothin to lose". :. Force it.
sea foam deep creep i use it on lamp post in parking lot i have ones that tilt down to change the bulbs and the broke it free and has keep them from sticking.
I like it. Simpler than a humanoid biped, but still challenging.
does each LED get 12v? Or are they in series such that in a circuit of 12 LEDS (or whatev #) each one gets 1 v?
rumor: some schools block ibles for safety reasons. Having done some teaching, I can see why. Having been a kid ( and some may say still am one) there's a part o me which might get in a tiff about blocking access. In my day there were some books I had access to in elem, middle and HS. It's perhaps good that some books available in HS weren't available in Elem Sch.
aren't people just getting syringes now, to avoid the cost increase?
turn your screen upside down.
if the bench is framed with 2x4 under the top, u can clamp work to the bench without modifying the clamp.
free. Treadmill from craigslist
Close Quarters Impact Wrench
non GMO is the real trick.
convention is like a Revolver. Maybe make an automatic, except holes go up And Down.
u want somthin like a vice above the worktop? Or flush with it
regulation golf >_ 1.68". And <_1.62 Oz. I've a ball with all dimples filed off. 14 thousandths undersize. It needs polishing. Close enough in size, I suppose. Will it have substantially more drag
wood glue comes to mind.
oooh. I think I have some of that I could sell.
a coarse file works better than beltsander to remove dimples. I'm also workin on one by building up paint, then filing. This way, less change in mass and diameter.
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