Floating Desk

I've been thinking about making a desk for my new room. The best place for it would be to put in a a corner. I'm looking at dimensions of 41x21". What i want to do is make it floating so that i wouldn't have leg posts in my way. I've seen elsewhere floating shelves made from interior doors and was thinking about incorporating that into my desk design.  What i want to do is cut an interior door to this 41x21" dimension. Then hang it up just like you would a floating shelf. Because it's in a corner i would have the advantage of being able to cleat not only the back but also one of the sides. Once i had it in place i planned to put a supporting bracket on the floating side for a little extra support.  I just wanted to know what other people thought of this idea. Would it make a sturdy enough desk, or should i use a different material than the door?

Topic by ProRock   |  last reply


Floating sparkles

Hi guys! A few days ago I mixed in some sparkles with borax slime (oh, gods, the smell!) and perhaps foolishly assumed that the thickness of the slime would keep the sparkles from settling for at least a month, since they are rather light and all that. Alas, it was not to be. Four days later and most of my sparkles are at the bottom of the jar. Question: Does anybody have an idea or suggestion or anything to keep the sparkles where they are? Thank you!

Topic by TashaDax   |  last reply


floating key chain?

Hi i need help making a self inflating key chain that uses a balloon or something to carry keys to the surface of the water, it needs to inflate when fully submerged but can handle some minor splashes. something similar to this:      www.water-buoy.com

Question by rocketman217   |  last reply


Wooden spoon floating?

My mom was cooking a pot of soup in the kitchen while i was sitting in the next room over, then suddenly she called me in, I asked why, she said for me to hurry, and when i got there is saw the strangest thing in my life. There was a wooden spoon standing on end wobbling around as if someone had their finger on the  edge of the bowl shaped part. it was standing at about a 40- 45* angle , witch is clearly impossible with a wooden spoon. When my mom moved it she siad it felt as if a magnet was pulling on it. She moved it completely away then inspected it put it back int he same spot and nothing happened. I don't think this is an answerable question just thought id share it, I also don't think my mom was trying to trick me cause she's not that smart  and has never done a single magic trick in her life. This was just too weird. I could get a pic of the spoon if you want.

Question by the_burrito_master   |  last reply


Airsoft target floating

Hello.Y make the airsoft targets floating and didn t work...y make all like in the blog,it s somebody who make and it s working?Y trie whit a compressor and y don t now if it s to small...help please

Question by AndreeaS19   |  last reply


3D Floating Hologram

Is it possible to make a 3D floating hologram like in the movies? I need help. I'm trying to develop something like this and I'm having trouble. Could I use an LED cube to make it? Or should I use glass and a projector? Or something else?

Topic by MattGyver92   |  last reply


Japanese Glass Float

My dad is going to give me a glass float (which will be called a glass ball from now on) but I need to make something to hold it so that it doesn't get broken. I'm not quite sure how big it is exactly, but it's definitely bigger than a volleyball. Anyway I have absolutely no idea what to make for it. I want something that will look good but not cost too much. So... Any ideas?

Topic by Sunbanks   |  last reply


floating shoes? anyone?

Shoes that are wearable in public, but allow you to stand on a calm body of water. Can this be done by DIY means?

Question by Divendren   |  last reply


Create a Floating Moon

Hi there, i need help, It's almost my wedding aniversary, and me and my wife have this agreement that we gonna surprise each other every year, well there is one thing that i'm doing this year, been thinking about it since we got married, but never got the gear to do it, well now it's diferent, there's only one thing left, i'm going to steel the moon for her (a moon done in machê paper) theres only one thing, what can i put inside it to make it float? I've tought about making it with a beach ball filled with helium but it seems that the ball leaks, does anybody have any idea???? Glad for the Help, Nuno

Topic by nsilva12   |  last reply


fishbowl with floating tv

Can someone tell me if this has already been done or where i might find some information? (beg pardon if answer is painfully apparent / easy to find and i didnt) backstory: i bought a house. in historical documents of 1905 a lighted "french" sculpture was mentioned. it is now gone but there is a convenient hole with a electric switch for said hole. i was thinking of what to put in the hole and i remembered watching the Chris Isaak tv show something like ten years ago and aside from the amiable goofball lead the show also had an wise advisor character who was dressed up like a mermaid and through the refractive index of a fishbowl and some other feats of science appeared to be floating and moving in a large fishbowl mounted on a table in a bar. question1; does anyone know the conditions necesary to set up a similar trick? maybe with a small tv, cell phone screen, clock, camera, or something else set up on the bottom of a glass ball with the image floating in the ball? question 2; could you set up a large trapezoidal cube made of glass on top of a flat screen tv on the floor where the light bending quality of the glass would redirect the image on the tv on all the surfaces of the cube? sub-question; could you make said cube with slightly convex surfaces to enlarge the image of a very small image projector?

Topic by brazenfaith 


how to make a floating shelves?

Iam wanting to make some modern floating shelves. i have know idea on how the shelve can support all the weight without brackets & ian trying to do it my self with out buying a 130 dollar kit.

Question by    |  last reply


Would a floating desk made made with an interior door be practical, or should i find a sturdier material?

I've been thinking about making a desk for my new room. The best place for it would be to put in a a corner. I'm looking at dimensions of 41x21". What i want to do is make it floating so that i wouldn't have leg posts in my way. I've seen elsewhere floating shelves made from interior doors and was thinking about incorporating that into my desk design. What i want to do is cut an interior door to this 41x21" dimension. Then hang it up just like you would a floating shelf. Because it's in a corner i would have the advantage of being able to cleat not only the back but also one of the sides. Once i had it in place i planned to put a supporting bracket on the floating side for a little extra support. I just wanted to know what other people thought of this idea. Would it make a sturdy enough desk, or should i use a different material than the door?

Question by ProRock   |  last reply


Help Needed: How would i make a 3-Section Floating Computer Desk (horizontal-diagonal-vertical)

I recently came upon the idea to build a floating or wall-mounted desk/workstation. I  am a graphic artist and use my computer area for computer research, drawing on my computer, drawing in sketchpads, printing/scanning, etc. its essentially my art-station.... So the idea came to give myself more room to get my work done, while at the same time not "crowding" my room, which isnt huge to begin with, since I don't have access to a separate office space. This idea could potentially give me enough space to draw and use my computer without having to constantly move things around to fit my materials. It would also allow for more leg room, as i could use my computer chair to roll through my entire area with no interference. I have a rough idea of how this might be able to work, but as i have never done any DIY projects, i figured i'd ask the more experienced people on here for their advice or opinions on the concept itself. and maybe if i am lucky i can get some recommendations on materials. i am VERY new to this and am running just on concept and basic logic; So the concept here is to have 3 pieces of wood, two of them will be 4' x 1' 6" ((48in x 18in)) and the center piece would be 4' 6" x 1' 7.5" ((54in x 19.5in)) however i would need to actually measure it out to make sure on that last one as i just did some quick math to scale of my drawings...  i have a diagonal wall in my room that connects to a horizontal and a vertical wall, which i plan to build the floating desk on. i included a diagram of how i plan to cut and connect the pieces (cutting off triangular pieces from each board should allow them to fit like a puzzle, to which i have to then find a way to attach them). Now, my question is, does this plan look doable. i feel it will be alot less expensive then buying a desk and i will have much more room for what i need. what would i need to support the desk? i would like to make this without legs if possible. while making it as sturdy as possible of course.... and i plan to add a sliding keyboard holder....i will not have many heavy things on top of the desk as shown on my diagrams, the heaviest thing would be an iMac which doesnt weigh much. i would also most likely stain the word a mahogany/reddish toned wood color. so i am looking for a sturdy would that can be stained fairly easily.... ((i will also cut a semi-circle hole on one of the boars for wires to go through, although i will have minimal wiring. I was thinking of using those L-shaped bracket things they sell at Home Depot to support the wood to the wall... they come at a maximum size of about 12 inches i believe....  Does anyone foresee any problems i might run into? any suggestions? is there some materials i should purchase. i have access to a power drill, and materials/machines to cut the diagonal/triangular cuts off of the wood. so yea, did i miss anything.. again sorry, this is my first DIY idea ever...!

Topic by PJ_Graphix   |  last reply


55 gallon barrels

Where can I purchase barrels for a floating dock that are priced reasonable?  I live in the country and don't have or know anyone to try to pick up barrels for free.  The prices are all over the place for plastic ones, so I thought someone who purchased them might give me a heads up where to purchase them. jdvallet@aol.com

Question by jdvallet   |  last reply


Would this floating idea be plausable?

Basically, I was thinking in my sleep as I usually do. I thought about how less dense things float on top of more dense things. And this got me thinking towards this: Are there any gases that are more dense than the human body? If so, we could float on this particular gas (with gas masks or oxygen tanks of course). This also led me to think about: Are there any liquids which are lighter than air? We could have a swimming pool of sorts that floats on the ceiling. All we would need is the right chemical. Any scientists out there? (I know it is unlikely as states of matter generally mean that in terms of density, Solid>liquid>gas.

Question by The Jamalam   |  last reply


what lego pieces float? Answered

Hi i have a question are any of you good at making lego boats because i am planning to make a floating lego boat

Question by rosie feather   |  last reply


Floating radio power usage?

I am building a floating radio to take on a float trip. I do not know much about power usage. I was going to use a car or deep well battery for power. I was wanting to run (4)-6X9 speakers, a amp, a 10" sub, and possibly some LED lights that would beat with the music that could be shut off during the day. Is this to much drain on the battery? The float lasts all day and I was concerned about draining the battery before the trip was over. I was told by the local Marine shop that once I start adding amps andor subs the power would drain much quicker. Any suggestions on stereo, speaker, sub, amp, size or the number of things I could run would be appreciated.

Question by rodsteryz   |  last reply


Hoverchairs for floating senior citizens

Hovercrafts are great ways to reuse a leaf blower or shopvac for goofing off. Now some folks in Japan are using the same idea to float senior citizens around. These chairs designed at Japan's Kobe Gakuin University can lift up to 330 pounds. The next step is to find someone who can manufacture them so we can get everyone floating along, softly bumping off each other. Related: Hovercraft Autonomous, Wirelessly Controlled Hovercraft Simple Rideable Hovercraft Link

Topic by fungus amungus 


Will this float switch idea work?

I'm messing around with cheap-o solar pumping project wherein I want to pump water 75-100' from a stream (or really a shallow well next to a stream) to barrel near my fruit trees. I wanted to install a float switch in said barrel to turn off the pump when the barrel is full, but was trying to avoid having to run wire all the way from the pump/controller/battery set-up at the stream to the barrel. I had this idea that if I pumped water first into a 5-gal bucket mounted on a tree near the pump and raised it up above the barrel, Not only would I make the most of my pump's feeble lift (by reducing the friction it must overcome and allowing gravity to do the work), but it would also allow me to put a float switch on the bucket itself, rather than in the barrel, thus reducing the wire run significantly. Here's a picture (not all system components represented).  Will it work?  I'm wondering if there's a physical/practical consideration that I'm missing... Thanks for having a look!

Topic by Sam_NY   |  last reply


Foldable floating house for two

Hello everyone. I have plans for foldable and floating house fit for 2 people with WC, 2 beds, 2 fishing chairs with tables and maybe a bbq :) I dont have the money to build it but its a dream of mine. I'll be happy if someone is interested and actually build this thing. when folded its 250sm / 150sm / 50 sm h. For the materials i can use steinless steal squares for base, old inner tires for support, light aluminium rods for the roof, some watter resistent fabric for the walls and some custom made beds and tables. I'm working on pictures with some lame architecture program and i'm posting them as soon as i can. I also have schematics of the joints and locking systems ... well if anyone is interested let me know

Topic by WishKeeper   |  last reply


Float Your Boat Challenge

<br /> [BCITSA YouTube Chanel] Recently, the BCIT Student Association (BCITSA) hosted a 2-day 'Float Your Boat' competition for the Marine Engineering Students at the Marine Campus in North Vancouver. Contestants were supplied with ‘surprise’ materials to construct their vessels with; materials included plastic garbage bags, popsicle sticks, bamboo skewers, aluminum foil, string, plastic party cups and tape. Teams of 2-3 were given an hour to become acquainted with the surprise materials, then design and construct a sea-worthy vessel. Boats were then raced in heats on the indoor pool, using human-powered fans for wind, to determine who had the fastest time. Prizes were awarded for: Fastest Boat, Most Creative Team and Best Overall Design, all donated by local businesses. I attended just to check out the scene, but the event was also covered by local news media and has since been broadcast on stations in Metro Vancouver, as well as printed publications. Pretty awesome for a low-budget student association! And there's more, the BCITSA has a history of hosting awesome events for students, such as: 3rd Annual Flying Extravaganza, where students at the Aerospace Campus in Richmond, BC "construct planes from everyday office supplies, with the winners chosen based on the distance they can safely land their lego pilots. Additional prizes go to those with best design and best crash." CTV News coverage (youtube video) Engineering Week, hosted at the BCIT Main Campus in Burnaby, BC, where electronic, mechanical and civil engineers compete in tower building, catapult destruction and racing CO2 powered cars, all made from everyday office supplies. As well as the competition Engineering Students brought along projects they have been working on to share with their fellow students, there was even a real live Angry Birds game being played. CityTV News coverage (youtube video) Facebook photos Aside from a much needed break from studies, challenges like these put on by the BCITSA pushes students use creative solutions learned in class with hands-on problem solving, turning academics into tangible results.

Topic by mikeasaurus   |  last reply


question about floating things on SF6 or any other gas

Hey guys, I have this burning desire to float something on SF6. Rather than just balloons or foil boat. Right now i am thinking about dandelions seeds, dust bunnies? dead insects? is there any way for these things to float on SF6? or any other gas? In addition, if i use a balloon full of air, how long can it stay up before going back down? if i seal the fish tank up really good, can i keep it up for a good amount of time? Please let me know what you guys think! Thank you so much!

Topic by haoishao   |  last reply



Do you think anyone out there could make a cocoon sleeping bed, could anyone make it, or make it cheaply?

 I have seen it before, and it is a sleeping bed cocoon that floats in the air between two tress. And it isnt open it is your own little pocket, there will be photos on google, I just want to know how, if possible could this thing be made, and cheaply too. Thank you to whom ever tries.

Question by kittycatdogto   |  last reply


Arc produced orange lightweight gas? Answered

EMERGENCY: I have been arcing through everyday air in an enclosed container.  An orange gas formed at the top and I am not sure what it is.  The container is plastic and has had a small amount of melting in a top part, but very minimally.  My electrodes are aluminum foil layered over a couple times, melting has occurred slightly on the electrodes.   10kv 30mA transformer.

Question by jj.inc   |  last reply


Magnetic Levitation (without electromagnet above, or spinning top)? Answered

Hey, so I was watching some of these videos about magnetic levitation, and I notices that some levitating globes don't have an electromagnet above the globe. Nor is the globe spinning very fast. This is one of the devices that I have seen, and I would like to know how it works so that I can build it....and maybe make an instructable along the way. Also, SimerLab has the levitation down pretty well. Anyone have any ideas? Thanks! Sam P.S. Found another good website here that has one taken apart (it was a Levitron AG). And this website has a kinda breakdown on how one might work, but it definitly isn't specific enought o build one.

Question by samr37l   |  last reply


Coffins, bedstead and idiot rescued by lifeboat.

Sometimes I wonder how we earned our reputation as a seafaring nation... A DIY sailor had to be rescued by the Lyme Regis coastguard and lifeboat after taking to the sea in a DIY yacht consisting mainly of two coffin-sized plywood boxes and an iron bed frame. The anonymous man had spent several days on the beach, lashing his vessel together.  It was so obviously unseaworthy that the coastguard and lifeboat crews warned him not to put to sea. Unfortunately, he did put to sea off Charmouth.  On an out-going tide in an offshore breeze. Within yards, onlookers had to call emergency services, and the lifeboat insisted on towing the (for want of a better word) boat back to the beach.  The captain had been unable to make headway against the breeze with his home-made oars... I've got to wonder... how many of our own authors have been in a similar situation? (You get all the serious news in the Daily Mail...)

Topic by Kiteman   |  last reply


Floating CSS Images at Bottom Left?

Greetings all! I need a little help with a CSS problem. I'm trying to float several images of different sizes at the bottom of a web page. I'm using the Bootstrap kit from Twitter to get myself started. See twitter.github.com/bootstrap for info on it. Any help will be welcomed!                                                 -joespicnictables

Question by joespicnictables   |  last reply


how to save float value EEPROM

Hi This is Eabul. i want to save data to eeprom from press button . when TemperatureUp button press. increase float data like as 0.01> 0.02--------30.10> 30.61 and this value save to eeprom. and when TemperatureDown button press . decrease float data like as 30.60>30.59-----29.10 and update minus value eeprom and increase and decrease valud view lcd display . but when press button save int number not float. and show me lcd display int value. please help how to write and read float value from eeprom. press button. hear my code. //For Display #include // 3wire display LiquidCrystal595 lcd(4, 3, 2); // DS, ST_CP, SH_CP //For time #include #include RTC_DS1307 RTC; //for humidity #include "DHT.h" DHT dht; //for stor tempereratur and humidity #include int SetHumidity; int HumidityUp = 10; // switch up is at pin 10 int HumidityDown = 11; // switch down is at pin 11 float fix = 0.01; float settemp; // make a variable called temp float TemperatureUp = 12; // switch up is at pin 12 float TemperatureDown = 13; // switch down is at pin 13 //result view int led = 0; // led is at pin 0 void setup() { //For timer Wire.begin(); RTC.begin(); //For welcome screen lcd.begin(16,4); lcd.setCursor(0,0); lcd.print("Welcome Elab"); delay(2000); lcd.clear(); //for dht-11 pin setup dht.setup(A1); // data pin 2 } void loop() { //For tempererature up / down float temp[3]; getTemp(temp); float tempererature = temp[1]; settemp = EEPROM.read(1); // read the settemp on the eeprom if(digitalRead(TemperatureUp) == 1 ) { settemp+=fix; settemp++; EEPROM.write (1, settemp); /* write the most recent settemp in eeprom data stoage*/ } else {} if(digitalRead (TemperatureDown) == 1) { settemp -= fix; settemp--; EEPROM.write (1, settemp); /* write the most recent settemp in eeprom data stoage*/ } if (tempererature >= settemp) { digitalWrite (led, 1); } else { digitalWrite (led, 0);} //else { }; lcd.setCursor(0,0); lcd.print("T:"); lcd.print(tempererature); lcd.setCursor(8,0); lcd.print ("ST"); lcd.print (settemp); lcd.print((char)223); //End tempererature controll //For humidity up / down SetHumidity = EEPROM.read(2); int humidity = dht.getHumidity(); if(digitalRead(HumidityUp ) == 0 ) {SetHumidity++ ; } // add one to the settemp else {} if(digitalRead (HumidityDown) == 0) { SetHumidity--; } // Reduse settemp else { }; lcd.setCursor (0, 1); lcd.print ("CH:"); lcd.print (humidity); lcd.print ("%"); lcd.setCursor (8, 1); lcd.print ("SH:"); lcd.print (SetHumidity); lcd.print ("%"); delay (1); // wait 100 milliseconds EEPROM.write (2, SetHumidity); /* write the most recent settemp in eeprom data stoage*/ //End tempererature controll controll } //analog temperature void getTemp(float * t) { const int analogPin = 0; // replace 0 with analog pin const float invBeta = 1.00 / 3380.00; // replace "Beta" with beta of thermistor const float adcMax = 1023.00; const float invT0 = 1.00 / 298.15; // room temp in Kelvin int adcVal, i, numSamples = 5; float K, C, F; adcVal = 0; for (i = 0; i < numSamples; i++) { adcVal = adcVal + analogRead(analogPin); delay(100); } adcVal = adcVal/5; K = 1.00 / (invT0 + invBeta*(log ( adcMax / (float) adcVal - 1.00))); C = K - 273.15; // convert to Celsius F = ((9.0*C)/5.00) + 32.00; // convert to Fahrenheit t[0] = K; t[1] = C; t[2] = F; return; }

Topic by esumon   |  last reply


Makeshift floating/inflatable island/pool ?

Hi there, so a bunch of us are going camping at a lake and would like to make a makeshift inflatable island?  Out of blow up pools perhaps, another question would a blow up pool hold several of us in it on water? Haha

Question by Krissy004   |  last reply


Where are the vacuum balloons?

I am interested in making a vacuum balloon. I have been looking around and I can't find a single vacuum balloon that floated. If anyone has any links, pictures, videos, or suggestions they would be very helpful. The closest I found is this and it collapsed just before it floated.http://s113.photobucket.com/albums/n219/coreview2/?action=view&current;=VB03.jpg

Question by Danjor   |  last reply


Amazing Family of DIY Pirates Cross Atlantic Ocean in Raft Made from Garbage!

This is actually old news at this point, but it's so awesome that I think it deserves some attention on Instructables. A unique family called the Neutrinos built a raft from garbage and scraps found on the streets of New York City, perfected their design during numerous trips along the coast, and then during the summer of 1998 spent 60 days floating it across the Atlantic in 20ft seas while fending off swirling currents and heart attacks!Needless to say, the story warranted some further investigation, upon which I learned that these empowered adventurers have built many rafts over the past 20 years. The children of the family were born in Mexico and raised in the circus. The more I read about their story, the more interested and excited I become.Check out the details at their extensive website - The Floating Neutrinos where they write about the other rafts they have built, brain reprogramming, and about their newest project: The Vilma B, a floating 128' orphanage housing up to 25 children!National Geographic TV featured their home-made a movie about their journey across the Atlantic, and a new movie about the family is on the way. Watch the trailer here.If you don't have time to dig through the entire site, you can check out the condensed summary of it all at http://www.paulsorganic.com/most-fascinating.htmIf anyone knows more about these people please reply - I can't stop reading about their adventures and getting exciting about floating somewhere myself!

Topic by noahw   |  last reply


I need to make a giant globe for a float.

The globe will be painted by young children for a recylcing themed parade float.

Question by    |  last reply


How to put a hole in a 3" glass float?

I have a bunch of 3" glass fishing net floats and I want to put a 1/2" hole in them to put LEDs in them to make them lights.  Any ideas on how to do it without destroying the float would be appreciated? I have attached a picture of what they look like. Thanks for any help

Question by rhargesheimer   |  last reply


how do you make a paper plate float over a fan?

I've been trying to make my Legos float on a plate!

Question by mjcoolkid1998   |  last reply


holiday inflatable - giant floating (indoor) balloon

 We have a Gemmy inflatable at work (a giant Homer Simpson -- about 8 feet tall) and we were wondering if we could somehow fill it with helium and float it on the ceiling. We're concerned that it's too permeable (when the fan is not going, it deflates FAST).  One idea was to coat the inside with polyurethane (turning the fan on to blow it throughout the balloon) but that seems like it wouldn't work very well (too patchy), and could make it too heavy. Another option would be to take a bunch of balloons, insert them into the Homer, and then inflate the smaller balloons (and tie them off). Any other thoughts or suggestions?

Topic by jeffreality   |  last reply


Auto stop 12v pump (no float-switch)? Answered

Hi guys, i got a very urgent question, I need a mini small water pump just as the wiper pump 12v  but the most important thing  I need it to stop when the water tank is full (auto-stop) with no need of a float-switch. So how can i find this type of pump and what is their right name of the pump or what is the key-words that could give me the right on google  this is my first question link  https://www.instructables.com/answers/Water-dispenser-or-cooler-Pump-system-/ Thanks, Pls instructables community help me !!

Question by vwtm2006   |  last reply


Floating Garbage Island Twice the Size of Texas Aimlessly Spins in Pacific Ocean

The largest dump in the world isn't outside New York or London or Shanghai but in a desolate stretch of the Pacific Ocean nearly a thousand miles from the nearest island. Held together by a slowly rotating system of currents northeast of Hawaii, the Eastern Garbage Patch is more than just a few floating plastic bottles washed out to sea; the Patch is a giant mass of trash-laden water nearly double the size of Texas.Full Article:Plague of Plastic Chokes the Seas in the LA TimesQuick Blurb:Oceans of Garbage on Vestal Design

Topic by noahw   |  last reply



Arduino Error expected ',' before '*' token? Answered

My Sketch I used Micro soft to generate the Polynomial  below.       y = 28.089x5 - 158.77x4 + 410.33x3 - 426.65x2 + 532.31x - 320.03R² = 1 float I04 = A0; int readValue1; float x5 = 22.52; float x4 = 95.802; float x3 = 237.57; float x2 = 126.81; float x1 = 561.04; float x0 = 448.98; float I04_F = 0; int vdc1; int I04_C = 0; void setup() {   Serial.begin(9600);   pinMode(I04, INPUT); } void loop() {   { readValue1 = analogRead(I04);     vdc1 = (5. / 1023.) * readValue1;     I04_C = [x5 * vdc1 ^ 5] - [x4 * vdc1 ^ 4] + [x3 * vdc1 ^ 3] - [x2 * vdc1 ^ 2] + [x1 * vdc1] - x0;     I04_C = constrain(I04_C, 20, 1000);     Serial.println(" I04_C = " + (String) I04_C);     delay (25);   } After compiling i get the following, Arduino Error    expected ',' before '*' token? Thanks Steve,

Question by StevenM267   |  last reply


How to build a floating water polo goal post

Hi, Does anyone know how to build a floating water polo goal post I need to buil one to use it in the sea ? Thank you in advance, Dimitris

Topic by dimitemma   |  last reply


i need to make large pot of gold for parade float?

This is for a parade and needs to be big 

Question by peggy50   |  last reply


Any ideas on materials/ setup for levitating shoes? All serious responses greatly appreciated.?

I want to make levitating shoes with an old pair I have lying around. i know magnets and electromagnetic fields will not work, so I has thinking of fan propulsion systems like in the hover crafts you can buy. Even getting an inch off the ground would be fantastic. I was wondering what your guys' opinions would be on materials and setup, or if you have done the project successfully what you did and maybe your layout. All help greatly appreciated. Thanks!

Question by adam72   |  last reply



why does cut lemon float but cut lime sink ?

Working in a bar I was cutting up fruit to go in the drinks. We always put it in soda water to keep it moist but last night i noticed that the lemon slices floated but the lime sank, why ?

Question by queengoth   |  last reply


How much does float slow down arduino calculations, how do I avoid float values? Answered

I am writing a sketch with about 3 float numbers that go through some simple calculations such as divide and multiply. The calculations are very simple and only about 3 or four lines of code. I can't have this slowing down the reading of my interrupt pin. Can I store the numbers by multiplying until I have a whole number and store them as a int. Then divide them back out in the calculation? Thanks any help would be appreciated, David.

Question by David97   |  last reply


What is Hi-Float made out of, and is it possible to make my own? Answered

Hi-Float is, apparently, some liquid you can pump into a balloon to make it stay inflated for a longer amount of time. I can't seem to find anything other than commercial promotion on a Google search, and I'm terribly curious about how it does this, what it's made out of, and whether it would be feasible to make it myself, homebrew-style.

Question by V-Man737   |  last reply


How can I float a small ring magnet? Answered

I am creating a fluid level indicator for my automated drink mixer and need either an alternate solution or an item that can float a small ring magnet. Currently, my idea is to sink a reed switch into a straw, with a ring magnet around the straw.  Once the magnet floats down to the reed switch, it lights up the indicator that the alcohol is (almost) gone. Unfortunately, I cannot find a durable non-toxic way to make the magnet float.  I've done several searches and the closest matches I've found are fishing tackle, which I'm not sure would work all that well.  I've found manufactured devices, but $30 per bottle is a bit much to spend.  I'd like to keep it to under $5 per bottle.

Question by kidmosey   |  last reply


Floating Dock/Pontoon/Cabin Hybrid. Please Help!? Answered

So i have this idea for a vessel i would like to construct. First, imagine a 10' by 20' floating dock. It floats using steel or plastic drums arranged in a line and possibly attached to make two parallel pontoons. After the "dock" part is constructed, a 10' by 10' cube will be constructed on top, around 3/4 of the way back on the dock. The rest of the space in the front of the cabin will used for a mast and pirate-like (:)) steering assembly managing a rudder or two on the aft. Propulsion can be sorted later and may not even be necessary. I would also like pointers on how and where to construct this and possible costs parameters. I am on a lake, Lake Cushman if you've heard of it, and have little dock space. The lake level will go down and provide an inclined beach where i can begin construction over the winter. The lake level will rise after winter, but it can be completed by then i believe. Assume i have the cabin idea figured out, all i need advice on is the above stated. Thanks! Any advice is much appreciated!

Question by idy26   |  last reply


Sitar bridge mod (for floating-tailpiece guitars) idea

The characteristic sound of a sitar is created by a bridge that gently rolls away from the strings; this creates a buzzing timbre which quickly depletes higher overtones in the string's vibration (I could draw some diagrams if anyone's interested). This type of bridge is something I'd like to make as a removable modification for a guitar. My guitar has a "floating tailpiece" as I believe it's called, in which the strings pass beyond the bridge to the tailpiece. The segment of the strings below the bridge have no part in tone generation, and so could have an object attached to them (a piece of wood wedged between the strings, perhaps) without affecting the guitar's tone. If some object (the "clamp") were attached to the strings immediately below the bridge, another object (the "sitar bridge") could be affixed to it some minuscule distance from the vibrating portion of the strings. The sitar bridge would not make contact with the strings at rest, and so would not be a node of vibration (and not affect the strings' pitch), but when the strings are played, their vibrations would make them rattle against the sitar bridge - much like the bridge of an actual sitar. So how about it? I think it'd be an interesting and relatively simple mod that could be made to be removable and not destructive at all to the actual guitar. I unfortunately have no idea how to refine the concept any further than what's written, so I leave it up to any willing DIY-ers. It all makes sense in my head, but I may have accidentally left out some important particulars of this kind of mod, so please ask any questions you have. Because this mod relies on the strings below the bridge in a floating tailpiece guitar, I don't think it would work on most solid-bodied guitars, but if anyone can come up with a similar mod for the more common bridge type, be my guest. Also remember that the "clamp" below the bridge cannot rely on the tensile strength of the strings, as not only are they not terribly strong, their tension needs to remain intact so that the guitar can be played in tune.

Topic by Impasse   |  last reply