I have made, repaired and restored thousands of things over the years. When I was doing this RU-vid didn't exist. A friend gave me a Go-Pro camera so I decided to video some of the old tools I have owned for years, as I restored them. I occasionally repair tools so I included those repairs and recently I decided to make some tools for fun and video the making process.
thank you for posting this video. i have a similar quick read thermometer that stopped working. your video helped me open the case without damaging it. the broken wire is fixed and it's working again... from one daft old man to another 😉
What was the load? Voltage alone doesn't mean very much. If you can pull 100 amps at 5v then that's 500w. Which is better than 12v at only 40a. But I can just about tell you what the problem is. It is your rotor disks being steel, unlaminated, and in no way optimized for use in an alternator. And well, the magnets could have been bigger and stronger, yeah. Okay so maybe not particularly practical or even cost effective, but that's cool, you did something instead of just talking about it and dreaming big dreams.
Why not just pull one of the pole pieces off and put a single big ring magnet right where the old rotor coil was? You would have essentially the same device as before, except instead of producing the field with a single electromagnet, you produce the field with a single permanent magnet. You might have to stack multiple ring magnets, and maybe make a bushing if the shaft is too small, no biggie. Of course then you would also have a pretty cool DIY PMAC motor, if you provide a controller and a means of commutation such as hall effect sensors.
Hi Dom great video, may I ask what gas are you using with the mig welder? Oh and also, do you not get burnt with no gloves on? Keep up the great work 🤙🏼🇦🇺
Thanks Joe. I use straight Co2 in the Mig. I only bother with gloves if the weld splatter is going to fall on my hands. Yes I do get burnt hands sometimes.
Did you try to put a resistor 300ohms between the green standby wire and black neg in the plug..? Never mind, might pay to watch the whole video before making a stupid comment.. yep I’m an idiot.. keep up the great work 🤙🏼🇦🇺 Joe from Australia 🤙🏼🇦🇺
@@DaftOldMan I’m watching all your videos, but going from latest to oldest, so far at 3 years old, so don’t worry about anything I say, unless it’s relevant to the video, keep up the great work, may I ask you your name? As I don’t like calling you old mate.. I was raised to respect people.. 🤙🏼🇦🇺
I think you had a shorted turn? As that might get hot when the magnetic fields are changing, but won't show up doing a resistance test. You could try an inductive ring test as this will normally show up shorted turns in a transformer.
Spiral flute taps. I like these better than normal ones. Mine are made in UK by TWT. Spiral flute taps work like a drill flute so the waste comes back towards you rather than being pushed forward.
Thanks for commenting. I agree with you but I lose so much money making these videos that buying a spotwelder would not be much of an investment. I will get one one day.
@@DaftOldMan I’m not understanding how you lose so much money, your videos are great, so to speak, just being honest old mate.. they are on point with the title, although (bit of criticism inserted) speak more through what your doing, instead of just hand gestures, will go along way with your viewers, to be honest with you, your doing better than me, because I haven’t even learnt how to do a video on YT, so I’m on your side, soldering lipo batteries is more harm than good, invest in a spot welding machine, whether it’s 15 or 250 dollars, it’s gonna help your channel, keep up the great job, might be criticism but just know it’s in a good way.. 🤙🏼🇦🇺 Joe from Australia 🤙🏼🇦🇺
@@Johadart You are correct I should use a spot welder. But my convert of Hitachi 18v NiCd to Li-Ion video cost £20 for 5 x 18650 plus £5.00 for BMS and earned £1.03 from youtube advertising in 13 months. So buying a spotwelder doesn't make financial sense for me. (£1.03 was a high earning video compared to most.)
For what its worth. You should have just taken the electromagnet out of the rotor and put a speaker magnet in there with a hole already in the middle..
I think you should try 10 magnets 4 north at 12-6-3-9 o'clock and the rest south.. that's how it works out in my head. That's how I would do it. But that's just my opinion 😊
¡Muy buen video!! Déjame comprender esto: ¿conectas B+/- a la batería, y dejas libres las conexiones OUT+/-? El motor se conecta directo a la batería? Ningún diodo desde la fuente al INPUT+? Gracias por tu excelente trabajo!!!
No no no, never solder any Lipo batteries of any shape or size, as you well probably already know, the heat of a soldering iron, makes them very susceptible to fail, or even burn your house down, if it’s only for one battery, I recommend you purchase a spot welding machine/kit, you will have a lot more times to use it, it will pay for itself in no time, and not burn your house down, longevity of the tool will be greater, just saying old mate.. 🤙🏼 On another note, your using pz bits instead of ph bits, that’s why they keep chewing out the bits or the screw head..
@@DaftOldMan i think you have something more than an engineer. I think an "enginneer"would not have fixed this bms. Have you ever tried to fix a Dyson one?
Just a quick question cobber, the pick with the magnet in the bottom, did you make that, or can it be brought? Cheers Great video mate, keep up the great work mate. 🤙🏼🇦🇺 Joe from Australia 🤙🏼🇦🇺
Doing a swell job with the videos buddy, just a tiny tip, get a variety of colour sharpie’s, makes life a lot easier.. just saying.. 🤙🏼🇦🇺 Joe from Australia 🤙🏼🇦🇺
Hmmm maybe wifey need to be locked out.. lol just kidding, might need to order double the amount, and “pun intended” get some for your wife.. 🤙🏼🇦🇺 Joe from Australia 🤙🏼🇦🇺
Nice repair. looks like they put a bit of thought in to the design and did not cut cost in production. Somewhere there is a WEEE bin dying of hunger. 🙂
superb video. I have a few of these screwdrivers that also have duff batteries. They are a superb screwdriver from memory. can i ask where you got the battery replacement or the voltage of the replacement battery? Many thank in advance
The battery is 18650 Li-Ion. 3.6v approx. I try to buy them from proper battery retailers on the web rather than Ebay because there are lots of fake batteries in circulation.
I found sowing machine oil is good for oilite bearings so give it a try, I used to repair hoover motors and Kenwood motors, and they have oilite bearings in them, nice job, I like the ring adapter good idea, what did you use I must convert mine, thanks Bob in the UK
I have an ancient tub of "thin machine oil" what ever that means. I tend to use that or 3 in 1. I like your sewing machine oil suggestion. I will try some. The ring adapter was an offcut of some thick walled pipe I think.
If you fancy selling one let me know, my workshop was broken into and my tools were stolen so now at 78, I am looking to replace some of the same Thanks, Bob in the UK
The BMS is in the charger which is the next video. I do not use BMS for power output as I find they are not very good at managing high power output. I use BMS to charge the battery.
Yes the two different voltages seem an odd way to get two speeds. I guess the original NiCad batteries would not have cared about a bit of reverse charge. I don't suppose the Li-Ion cells will like it at all.😁
Great detailed and thorough fix! Only thing is the lowest speed became too slow. I believe the 2 screws holding the board control the lowest speed if you tighten or untighten them. I am not sure. I recently replaced the x2 capacitors because they were smoking and bulging and I believe I adjusted the lowest speed using these 2 screws. Thanks for sharing
Another excellent video. I actually did the same thing you did with a Black and Decker driver. I made several mistakes before I finally got it to charge via USB. If I had seen this video prior to me starting to fix it, I would have avoided several of the mistakes I initially made. As always, thank you for the great videos.
Nice conversion, I have a couple B&D and a couple Skill I will for sure be doing this upgrade. I noticed that you didn’t put the plastic spacer back in, is there a reason for that? Thanks for sharing, Wayne
