Diy project Definition and 26 Threads

Hello All, I recently purchased a BW Tek BTC100-2s spectrometer from eBay. It has fairly good specifications, but I have been wondering if there is an inexpensive way to improve its resolution. The spectrometer uses a Czerny-Turner configuration. My plan was to place a slit at the focal length...

Hi, currently I am working on a particle accelerator. In the project, basically, by the magnetic force generated by the coil, the magnetic ball is accelerated in a circular path. I first thought that giving current all the time to the coil wouldn't cause problems. However, as it turned out if...

Anyway, I made a thing! A Christmas present to myself. When we moved here in June, this was just a janky roof on two janky posts hanging off the shed-proper. Now it's a whole 'nother room - lighted, heated, weather-proofed, air-circulated, child-proofed and usable all year round, and all my...

I'd like to perform an experiment that will build intuition for Special Relativity in the real world. While I do believe that it occurs in the real world, I'd like to be able to prove it for myself, and I feel that such an experiment would help others on this forum as well. Is there an...

Hi physics lovers, I'm a beekeeper and I need all the brain power I can get on this problem. If anyone can offer some guidance or opinions, I'm all ears. I'm not a STEM guy. I've taken a few semesters worth of college STEM stuff (chem, physics, calculus, comp sci, does bio count? lol) but I'm...

See the attached figure. I used 220uF with buzzer and also tried 10uF capacitor but buzzer isn't loud enough. I don't have any 3.3pf capacitor. I used 1.1 pF instead. I also tried changing the resistance of potentiometer but still buzzer isn't sound loud enough.

I am making my own humidifier, the store bought heat based humidifiers seem to all die very fast from how hard the water is where I live. I am pumping air from an aquarium air pump (A) into a sealed gallon of water (B) through an airstone (C) so that bubbles (D) rise through water and hydrated...

Hi, I am trying to think how to make a DYI volume knob to control variable actions on my audio card. But I don’t want one with buttons to toggle the actions.. instead I want to make one with a touch sensitive lcd screen and make the scroll knob (a físicas one) around the screen bc I want to use...

I'm actually an electronic engineer, but never really worked in the field, due to lack of opportunities in my home country. Instead I worked as computer programmer, and I had lots of satisfaction and accomplishment in that field. Meanwhile I remember that 40 years ago, in my teens, I used to...

Hi there and thanks to anyone who responds. I am creating a DIY project that is getting a little complicated for my knowledge. Specifically, I need to have three electromagnets hooked up to a sequencer or a timer of some sort that supplies equal power to one electromagnet at a time, then...

I am working on a project; a computer case made out of wood, most likely oak. I was wondering if two fans (one bringing air in, on taking air out) would be enough to keep the system at a stable temperature. I wasnt sure because i know most cases are made of thin metal which conducts and...

Hello, I have decided that no matter how many times I ask, people will always leave my bedroom door open. Therefore, I have decided to try my hand at a DYI project to create an automatic door closer. I'm aware these already exist but I'm also doing this because I've always been interested in...

There are many web sites and videos about various methods for producing one-off labels/graphics for our DIY project front panels. Most of the ideas I've seen involve printing on a laser or ink-jet, and transferring this (laser), or applying it (ink-jet) to the front panel with adhesive or...

So the rubber on one of my bicycle tires has worn out to the point it needs to be replaced, and I was thinking I'd prefer a solid tire this time. Rather then buying one like a normal person I was thinking if I could make my own out of recycled plastic. Here is the plan as it currently...

So as a quick background I've made a 3-d printer (I know a monkey could assemble one of those DIY prusas) and want to step up my game a little bit. I came to the realization that some people have made/sold DIY milling kits, but most of them are for plastics or wood. I would like to make a...

I'd like to experimentally simulate air flow turbulences around obstacles. Building the obstacles in one thing, but providing a well characterised flow (and mix it with something visible like smoke...) is something else. In general, I think the whole idea is easier to acomplish compared to fluid...

I'd like to build my own reliable alarm clock, but I don't have any knowledge in electronics and no fancy equipment, only some humble C programming experience. What do I need and what do I need to know to build one myself. Thanks very much.

I am wondering if it is at all possible to create a magnetic board which is capable of repelling magnets. I am looking up magnetic levitation and would like to make a DIY version at home. Any tips/tricks to make this. Thanks in advance!

Homework Statement There is 4 neodynium magnets. It is 0.7 inch magnet. A 15,000 RPM motor. It does not hover. I am trying to make a eddy current to make it hover1. The attempt at a solution Getting a copper plate, having a better magnet.

I am building a mini water pump out of a 3L plastic container, a 6V mini motor, 12 inch straws, a cut up CD for a cover (in the pic it is what is between the fan and straw), and bits of a soda can to make up a fan for the motor. Problem is when I tested the product, not enough water/air is...

I've been thinking of making DIY Windshield washer fluid. I was planning to source some 2-Butoxyethanol and mix it in with a 1% dilution with distilled or demineralised water (whichever I can get my hands on). Do you think that should make a good summer windshield washing fluid or am I missing...

MOTOR Help! Hello Everyone, Please help regarding my DIY project. I want to make a Camera Glider/Slider which has to slide my 2-3 KG camera Horizontally, Inclined-ly as well as Vertically (Straight Upto 2 Meter High) using a Motor and a Belt. Here is the picture my project...

Hope I got the right section. First time poster! Hello all! I'm pretty much a Noob so forgive any ignorance. I'm running 31 Orange (2.2v) (24 ma) LED's on a parallel circuit. My power supply is 12v from the DVD power supply of a Xbox 360. I bought a 10 watt 15Ω clay type resistor per a...

So I have a project that I'm contemplating undertaking. What I basically want is: A lot of the times I'm lying down on my bed and watching a show or something. Except I would rather my face be facing the ceiling than one of the walls, if that makes sense. So I'm trying to make a small device...

i don't know if i am in right part of forum. i want to build some sort of wind turbine for a school project. all the diy project are 6 or 9 coils with 8 or 12 magnets. the coils are on non magnetic board and the magnets on steel plate. why on steel, the steel plate increase the total...

If you had the time and money what would you want to build for home project?