How To Build A Magneto Magnetizer Pdf To Jpg

That's 3,680 watts, more than most toasters. I assume that you feed it AC full-wave rectified to DC (plus ripple). Yes,200 volts DC full wave ( four diodes). How many turns?

How To Build A Magneto Magnetizer Pdf Creator. Free ebook download as PDF File. A magnetizer print head configured to print one. 637626 Owner Manual Free - The Best Free Software For Your there.

I can not say exactly because I qwound it on a lathe without a counter. Wehn useing the standard formula I came on 1700 Wdg for each coil.

I don't understand the part about the pole pieces.Most magnetizers use two coils each wound around a piece of Iron standing side by side.To close the magnetic circle it is common to use two poleshoes made of iron. These poleshoes steal a lot of magnetic force. I'm not sure I understand why you're worried about trying to make the coils very high efficiency.

Are you trying to save a few pennies on your electric bill? I would think that almost any old chunk of steel or cast iron would work fine for this. If you're designing transformers or motors that run all day, then yes, you'd use cores made of high magnetic permeability irons to reduce power consumption and heating.

How many minutes per month of magnetizing do you plan to do?According with my short experience concerning magnetizers, high magnetic permeability permits it to magnetize every magnets in different sizes and materials and to re-magnetize them, changing also magnetization axis. With common steel core, magnetizer dont works propely; due to my poor english isn't easy to explain reasons clearly, but I made it using FE 360 and then I modified it with pure iron core. I noticed big differences between 2 versions. This is my experience about this issue, everybody can build his magnetizer as he prefers! TGD, I found this PDF File on the AKSTEEL website: it seems to indicate we should use M-43 or M-44 (solenoid core). Does someone actually sell this stuff in short bars and rods at any price?

I find that Speedymetals sells cast iron rods and bars. -about $11/foot for 1.5' rodCast iron is terrible magnetically, and expensive to boot. Use ordinary mild steel, alloy 1018. Silicon steel is intended for AC use, such as in transformers, and is not required for a magnetizer. Although it will work.

Dave, ARMCO steel have 0.003% of carbonium. It's the best for magnetizers, but is a industrial supply and it's very hard to find.

An other way in order to reduce carbonium and boost the magnetic permeability is to use FE 360 and submit it in a vacuumed oven to reduce carbonium%. Forget to made a pure iron, but it's ok for a magnetizer. Here in Italy I did it, no way to find ARMCO steel in small quantities. Yes, I've my own project according with my friend Antonio Chiarelli of Magic Coil, suitable also for american purposes; you have just to change rectifier, nothing more.

It's similar to the Gingerly, and it works both with alnico and ceramic rods and bars. Alnico is easier to magnetize respect ceramic. Just to give you an idea why use low carbonium iron, try to make a pickup using polepiece in MUMetal or soft iron and then change it with common steel; signal decrease a lot. A good magnetizer made by soft iron boosts and transfers to the magnetic pieces whole electro magnetic flux generated;, more% of carbonium you have inside the core, less electro magnetic power you' ll transfer to the magnet.

Guys, I've been following this closely with huge interest. I get it that there is some versions of steel that is better than others. Free Gyrocopter Plans Small on this page.

In the end I think me personally will need more or less what’s available, as my options are somewhat limited. However I still miss a few details that I cannot wrap my head around and I would be very happy if someone would like to share that info: - How many turns of wire for the magnetizing spools (or what DC resistance with 0.85mm wire)? - Regarding the rectifier (mostly aimed towards Electricdaveyboy as we use the same electrical system): Do you simply use a simple diode bridge directly on the main power? Any capacitors to get a more even DC voltage? And you say that you run it directly on the 230VAC, 16A outlet, but what is the consumption? Not 16A I believe That would make the 0.85mm cable quite hot, wouldn’t it?

Any input would be highly appreciated. Hello Piero, it is a hotrolled steel had it here in my garage. Waiting for the poleshoe and groundplate being made. My mate is looking for a low carbone steel for poleshoes and bottomplate but if not I will use a high DC current in the coils to press enough magnetic force trough the iron to get the result I am happy with,hehe. Du you use your coils in series or parallel? Cheers db Dave, I tried already to encrease DC current wounding additional layers on the bobbins but cores made by FE 360 saturated too much and it doesen't transfer maximum electromagnetic field to the magnet, it's like if I used a weak magnetizer. This happen with stronger magnet as ferrite, you can notice that.

That' s reason I decided to keep carbonium athoms away putting whole metal parts in a oven at 1350° shooting inside it oxigene. This is only process to have an 90% pure iron, it means with a high magnetic permeability. Magnetizer performaces encreased a lot, saturating easily rods and bars, both in alnico and ceramic. I tried both bobbins in series and parallel.

I preferred parallel with opposite phase. Please let me know about your tests, thank you. I'm seeing plenty of AISI 1006 and 1008/10 steel available.

Are these going to be significantly better than 1012L or 1018? There's a place near me called Stack Metallurgical who will heat treat anything for tempering or other purposes. They can probably do the oxygenation it but i don't know what their minimum would be. I'm not a metal expert sorry. What experts says to me is to mill all parts with an iron with lower% of carbonium inside, that's all.

Here in Italy it branded as FE360, I don't know if is the same in the rest of the world. Oven used is from a metallurgical company, and they told me what they do to reduce carbonium percentage but not in specific. In italian is called 'Ricottura con insulfazione di ossigeno'; translated sounds like 'oxygen release recooking' In other hand you have to push iron near to the fusion point together oxygen then reduce temperature step by step. This operation takes more than 24 hours. You have to ask to some metallurgical company in order to do that, forget to do it in your shop. I can say more about it, sorry. Hi guys, I only just joined in the hopes someone can help.

I built a magnetizer from a 4 inch plastic tube with about 60 windings of some data cable that I pulled out of a printer cable and I'm using the 5 volt DC from a USB port which I'm told uses from 100 to 500 Milliamps. It gets hot after about 40 seconds in use so I know it's working, but it doesn't really seem to magnetise very much if at all. Is this too small to be any good?

The construction of electromagnets in childrens books seem to run off very small power (like a battery) and not many windings at all so I thought this would be enough especially when left on for 30 seconds? Any help appreciated.

Lead Acid Battery Charger Description Here is a lead acid using IC LM 317.The IC here provides the correct charging voltage for the battery.A battery must be charged with 1/10 its Ah value.This charging circuit is designed based on this fact.The charging current for the battery is controlled by Q1,R1,R4 and R5. Potentiometer R5 can be used to set the charging current.As the battery gets charged the the current through R1 increases.This changes the conduction of Q1.Since collector of Q1 is connected to adjust pin of IC LM 317 the voltage at the output of of LM 317 increases.When battery is fully charged charger circuit reduces the charging current and this mode is called trickle charging mode. CircuitsToday has provided a list of 4 great books to get a better theoretical and practical knowledge on the basics of electronics. We have reviewed all these books. Check them out and purchase them online. Battery Charger Circuit Diagram with Parts List.

You cannot have infinite charging current the battery will blow. For charging yes if battery terminal voltage is low the charger voltage also will get reduced to that level and charge at the set limited current of 20% of the rated current of the battery. As the terminal voltage raises the reg voltage also will raise up to the max set voltage and afterwards the charging current will start reducing and finally to the level of top up current. This is the charging theory and practice. 13.8 volt is the limit for cycle use and 14.4 is for stand by use and 15.2 is for boost charge. Hi Seetharaman! Your circuit diagram is very useful to me.

I have a 12V 5AH conventional (the one with cell caps where you may add distilled water) lead acid battery. Please bear with as I am not an engineer.

If I may ask, can you provide me with a circuit diagram for a ‘rectified dc voltage in’? Kindly include parts and their values.

Further, what is the minimum required transformer voltage and current to get at least 15V rectified DC and 1.5A maximum charging current? Furthermore, can you provide me with a pictorial diagram of your battery charger circuit diagram? Finally, do you have any updates on how to add LED indicators in this battery charger circuit diagram? Thank you very much and more power to you! You can use 0.47 ensure that it is disc type.

With LM317 with infinite heat sink it can deliver 1.5 Amps absolute maximum. For your charging requirement of 12 volt 44AH battery a charger of 14.2 volt 12Amps is the requirement.

With flat battery it will start at 12 amps and it will start tapering of as the terminal voltage increases slowly. Normally 10 to 12 hrs will be the requirement for SLA batteries.

They go by constant voltage charging with current limiting. R5 is or setting the max voltage output to 14.2 volt without connecting the load.

Current is limited by Q1 and R1. Hello Sir, I have a Well Understanding of Lead Acid Batteries charging after reading certain circuits over the internet. I have made a circuit to charge my 12V 44AH Lead Acid Battery. The Problem is that i have used LM317 ic to control the voltage to 14.7V (2.45 / cell ) but getting a Current more than 0.7 Amp ( Cheked with an Ammeter in series during charging ) I want to get 5 Amp Atleast.

Please note that i have made almost the same circuit but without the transistor in it. I mean without Q1,R4 and R1 in it. Please let me know Why transistor is used here and for what purpose, and what if we don’t put Transistor and it’s biasing resistors R1 and R4 in this circuit. Should i need to change the IC with more Ampere Rating Ic of 5A like LM338 or LM138.? Awaiting reply! I pulled apart a 24V charger for an elec mower that wasn’t working.

It used this same LM317 charger ciruit and for a charge indicator they simply cut the circuit at the transistor’s collector and joined it up again using a red LED. What follows are a few numbers to see how this might work.

In these calcs the highest output voltage is the open circuit output voltage, which is set to 13.8V, and the lowest output voltage is the voltage of a flat battery, for which I’m using 12.4V. The LM317 works by keeping the voltage drop across R3 at 1.25V. For R3 = 120 this means that the current through R3 is always around 10.4mA. When the charger is not connected to a battery the voltage across R2+R5 = 13.8-1.25 = 12.55V.

The current is 10.4mA so R2+R5 are going to be adjusted to about 1207 ohms. When the charger is connected to a flat battery the voltage across R2+R5 = 12.4-1.25 = 11.15V. 11.15v across 1207 ohms = 9.2ma. This gives 1.2mA as the max current going into the collector of Q1, which will only be this high at the start when you charge a 100% flat battery. This does mean that the indicator LED will turn off before the battery is fully charged. As you charge the battery the current limiting action of R1 will gradually reduce this current until Q1 (and the LED) is turned off when the circuit switches to from it’s current limiting mode to it’s constant voltage mode. A search on the element14 website for through-hole LEDs with forward current If=1mA comes up with one 2mcd, three 3mcd and one 10mcd LED!

Hi Sammy without this transistor added. Once the battery is flat and the IC output is 13.8 volt there is no current limitting in th circuit like series ressistancve between IC output and the battery, hence battery can draw current to the full current capacity of the incomming power supply / IC internal capability. To avoid such a situation this transistor is provided to limit the current output of the IC to around 1300mA.( once the current exceed 1.3A the drop across the resistance R1 the transistor will start conducting hence the IC output will fall down so no current flow can take place. Kindly add a 1N5404 diode between R3 and + output terminal to battery.

This is required to avoid back flow current from battery to IC.