[X]Assistant

[Momys]

why did you fall from where ??
guys it is not as easy to do as it seems ....
lasers-schmasers, and they are not gu-gu!
I'm about what they och fucking in printers and wholesale drives
and to focus infra with a glass lens, it will not sustain large powers and will burst ...
and besides, it will not focus to a point because of the interaction of the glass and the light of this range!
no chance of the artisanal method
and the burner is IMHO patriotism

[alex07111971]

It’s not easy for the guys to take a fan from the computer to solder a power supply unit adjustable nichrome thread, it’s not a problem to find a flexible tube so that the main thermometer doesn’t melt and everything at the dawn of repair the mobile saw it with his own eyes easier to buy factory ps

[Uhunter]

Something reminded me how plexiglas bent: happy: They took nichrome or tungsten, hitched to the two ends of the welding machine, warmed the plexiglass, then bent. But this is all the lyrics: happy: The fact is that one does not feel metal with a laser or a torch, and overheated soldering is worse than underheated (although this is bad enough: rofl :). I think it is not necessary to reinvent the wheel, when everything is already at hand, everything is for sale. Thank God, we are not in a scoop zhivС‘m, to suck out of your finger and come up with something. Believe me, as an experienced welder and soldering iron from nefig do, neither the burner nor the laser is not an option! : Happy: The laser is just as interesting as self-indulgence, but to focus through the lens a few rays is also a little task. And if you do not guess the power? And where is the guarantee that you will find the same lasers? And where is the guarantee that it is really possible to find the right lens, from the right material with the right bulges and bulges? So, this is self-indulgence, if there is nothing to do at all, you can pozamorachivatsya, but no more than that, this will not work.

[pesbaskerville]

I just wrote about this topic ...
the laser from the drive - to solder .. damn, for the entire period of work in the SC never heard such nonsense. So - we have a laser, we have a disk. The thickness of the working layer in the disk - microns. and even in such a state of affairs, the sat down laser does not write to the disk. I saw a device that could actually be boiled by a laser at a factory where I collected gyros. This crap was the size of a good fridge and used powerful optics and IFC lamp. In addition, the lamp was covered every six months. Crap gave a point pulse with a diameter of a millimeter and boiled metal casing to our gyros. to collect (artisanal) another such refrigerator?
For information - laser cutting from the drive is real - done. there is enough power to pierce or float thin and necessarily black polyethylene. for soldering and welding, you must be the director of a plant for the production of such lasers - so that there is always a surplus. maybe instead of an impossible dream of becoming a director, go and buy a turnkey solution, such as a hair dryer.
and then let's set up the production of laser soldering irons for the flow.

(commercial break)
Only in our soldering iron 40 000 lasers !!! today at a discount !!!!

[vvzvlad]

and they gave me a hot air balloon

[Nemezis-87]

If I find, in the internet there is a video instruction how to make a laser for cutting plastic at home, and then something stronger! So this idea is not so utopian!

[freddyhacker]

um, and you need it? normal soldering is possible for<1k rubles to find, and metal cut and Dremel can ...

[Marvi]

Momys @ 18.7.09, 23:31

and to focus infra with a glass lens, it will not sustain large powers and will burst ...

Accidentally looked here ...
But here it is - crap! Even two crap.
All the power will be only in the focus of the lens. There is no load on the lens itself. This time!
Glass for IR naturally not suitable. Lenses should be from CaF for example. These are two.

[invin]

Lasers are tempting ...
Or maybe just pick up a heating element, so that a powerful stream of infrared study gives, and a reflector ... Cheap and angry, although in terms of power consumption, or rather efficiency, not very ...
The best option has already been offered, to make an analogue of the usual PS. A heating element, around or through, which goes refractory tube with air supply ... Perhaps you can even redo the usual soldering iron ...

[Sulimanchik]

For laser soldering \ welding \ cutting you need a VERY powerful laser. Laser pointers and especially drives are too weak. If an increased voltage is applied to the laser diode, then in principle it is possible to weld thin plastic, such as polyethylene (the power per the radiation area increases). Only dark color. But how long will he work? No one has canceled thermodynamics yet. The simplest calculation of the amount of heat required to heat the volume of the metal is converted to joules and watts. How much power do soldering stations have? Certainly not 300-500 mW, but several orders of magnitude more, considering that the laser efficiency is much lower than that of a conventional soldering iron. But to collect a few rays together is nonsense, especially at home. Read about coherent radiation and interference. Maybe it sounds clever, but the thought is simple - it is necessary to reduce the rays at the same point with the same frequency (color, wavelength) and phase, otherwise the rays can simply neutralize each other.
About the hydrogen burner. Why make a fuss if you can just as well use gas for filling lighters (butane)? However, I personally never saw that an open flame was used when soldering. Yes, there are gas soldering irons, but there the burner is used to heat the tip. Even if you work with an open flame, then the size of the torch should be no more than 1-1.5 mm (or even less). A needle from a syringe can not give such a flame - too powerful for anyone. The output of the microcircuit can still survive this, but the path on the board is already at risk of being burned (torn off). If you just reduce the gas output, the combustion becomes very unstable, and at the slightest movement it simply blows out. Output - to supply gas under pressure through a VERY small nozzle (0.1-0.3 mm and less). But this will lead to more complex installation. And gas is sold in cans, only to make a nozzle. The only thing that distinguishes the hydrogen flame from butane is perhaps purity, i.e. tin is not oxidized and is not contaminated by combustion products. However, for the "gas" soldering, you will still have to use your fluxes - how does rosin react with hydrogen or another gas? Do you get high-quality solid rations?
Conclusion - laser soldering will not appear in radio amateurs electronics until the invention of a cheap, high-tech, compact, powerful laser (solid-state or gas). In the meantime, the Chinese give cheap convection or IC P / S - everyone will use them.

[Hikikomori_nhk]

I decided to buy a soldering station with a hair dryer and a soldering iron assembly. For the repair of smartphones (in terms of replacing elements with BGA outputs), accessories for a PC.
As I understood, entry-level units cost from 2.5 to 3.5 thousand rubles. + shipping 2-2,5 thousand rubles. with Aliexpress.

Therefore, where can I get it from, I tend to Ali and which model? Budget up to 5 thousand rubles.

Thankful in advance for adequate hints.

Post has been editedHikikomori_nhk - 05.01.17, 11:20

[Azathtot]

Hikikomori_nhk
At my work Element 902, at home Element 835. Quite pleased. SMD to solder them perfectly, only here in SMD smartphones there are a couple of pieces on the board, there is mainly BGA. And for them, it is desirable to take something like IR stations Element 862. Well, of course, pack yourself with masks and solder in balls

Post has been editedAzathtot - 05.01.17, 11:12

[Hikikomori_nhk]

[email protected], 17:11

Only here in SMD smartphones there are a couple of pieces on the board, there is basically BGA.

Yes, I made a mistake (corrected in the cap). I just need for BGA soldering.

[Azathtot]

Hikikomori_nhk
Well, there are two ways. The first is to do acrobatics with a hair dryer, for 1-2 mikruhs, this is normal, although it's damn inconvenient, there is a chance to blow off everything that is near, and the installation is solid. The second way to put the bar on prices in adequate 30-35 thousand and buy an infrared station.

[eromka]

Good evening guys, there is a problem, advise, there is a BAKU 852D + soldering machine, the graphic display does not show the temperature, only 888 (eights) are lit, and if you turn on the heat gun, after 5-7 seconds, do not turn off the switch, what's the problem guys, tell plizz

[Legioner228]

Hi guys, help please.
Such a situation, I wanted to assemble a soldering station, I ordered a heat gun on Ali and a heat gun controller board from Kulibin on the Internet. I connected 24 V to the board (Kulibin) 24 V and mixed up the polarity and the capacitor exploded. I know how. I ordered half a year ago, already the ad can not find this Kulibin to ask for the value of the capacitor.
Can someone tell the value of the ego? I would be very grateful

Attached images

[Leptailurus]

Legioner228,in the scheme it is only one. Since the ratings of the remaining parts are not written, I will advise 25V>100 microfarad.
But I think the 358 microcircuit also left us, and the repair will not end with a single capacitor.

[Elecktrounick]

Yes, it didn’t work there with one electrolyte, I’m speaking as an expert in electronics. There and stubs unsolder and check from an external source is necessary. Cheap stabilizers have no polarity protection. In short, everything must be soldered, checked and consistently soldered, checking the result step by step.

Post has been editedElecktrounick - 05.01.19, 16:07

[mityagin2301]

Hello ! There is a desire to add a digital adjustment or digital LCD display to control the temperature of a hairdryer and a soldering iron. Ali has a digital temperature control unit for a soldering iron. Is it possible to connect it to the station and how? Offers to buy with a digital index are not accepted !!! The hunt to modify yourself (with the help of intelligent people) is more interesting than buying a new one.

Post has been editedmityagin2301 - 25.03.19, 08:40

Reason for editing: change

[Bigfishczy]

[email protected], 09:39

Hunt to modify yourself

Even if it will cost more station? And just to bring the temperature from the sensor on the board is not difficult, if there is a station, then everything else should be clear and so

Post has been editedBigfishczy - 25.03.19, 09:27