Make a Solenoid - Mikes Inventions
Вставка
- Опубліковано 27 сер 2017
- mikesinventions.etsy.com This video shows you how I failed, then succeeded in making a solenoid which I intend to use in an upcoming project. I made the rod out of a cut-off printer shaft then tried wrapping some magnet wire around a straw. This method wasn't great, so I ended up going with 3D printed parts for the solenoid body and that worked well.
Do you have the math behind the forces? I'm trying to make a project and I would like to estimate before making one. thanks
I want to know can you make a chainsaw coil work a solenoid
Does the rod need to be a magnet?
Hi, I want to make a solenoid for a diy solenoid valve project. 12v. How should i calculate the amount of turns and cable gauge that I should be using? thanks!
V = I * R
12v = ? * R
? depend on your current source capacity. If you have 2 Amp of sources, then:
12v = 2A * R
R = 6ohm
Read AWG's table. Look at the highest Resistivity, usually Ohm per km.
Example: if there is 1 ohm per meter, you would take 6 meters of wire. Then make a coil from it.
Finish.
Quick question. What limits the current in a solenoid ? When an inductor is connected to DC what keeps it shorting out ?
Hey Joseph! The current is limited by the resistance of the wire. That's why there are so many turns. It takes a lot of wire to get the resistance up to a level where the amps remain low enough to not heat everything up. Also why low voltages are good for DC solenoids.
@@MikesInventions Okay. Thanks for answering my question. I actually took a two year course in electronics but for the life of me I couldn't remember what limited the current.
Thank u
can you make a solenoid with the wire wrapped around a metal tube? Mine doesnt pull in the rod for my pulse motor. The iron rod seems to stick to the sides of the metal tube instead of being pulled all the way in.
You really do want the only ferrous metal in the solenoid to be the actuator itself. If you use a metal tube as a winding base it will also magnetize and the two will be more attracted to each other than to the coil.
May i know what would be copper gauge? And how many turns
Hey Arun! All I know is that it was 28ga wire. (Still have some on a spool behind the monitor) I have no idea how many turns this was. It was just a fun build as an example for Alex really.
sir if same number of turn with thick wire(30 swg to 22swg) and other things same, what happen,
magnetic power increase or noting change.
Hey! If you use bigger wire, the resistance drops, and so current will go up, creating a larger magnetic field. Current and number of turns determine the strength of the magnet. Thanks for watching! Make sure you use enough resistance (wire) so you don’t overload your power supply. Current goes up quickly with larger wires because the resistance drops off fast.
@@MikesInventions thanks
The direction for winding is always to the same side? Thanks!
Hey there! Yes, you always wind the same direction, because if you switch directions, the fields will cancel out. It doesn't matter that the wire goes back and forth along the core. The right-hand rule determines the direction of the field. Thanks for watching!
@@MikesInventions Thanks, the video is great, my eyes not. Thanks again.
@@MikesInventionsfalse - the windings should not go in opposite directions. That is to say, winding angular direction as well as linear direction along the length of the air core is crucial.
how is the garden looking?
We've had beans, tomatoes, peppers, and herbs! The corn never grew well because of the shade from the trees. There are potatoes going there now. I stunted my garden by using such small beds for fruiting plants. I'm going to redo it for next year to include more dirt so that the plants have more room to grow, but the boxes are still intact and look great! Thanks for watching these videos!
wire no is not explained
this is a 6v solenoid?
Hey Luke. I can’t remember what we sized it for. When you design a solenoid, you need to calculate the resistance if the wire then use ohms law to make sure you don’t overload it with the voltage you plan to use.
Try spools from sewing thread.