Cord to Cordless Jigsaw Conversion from 110V to 18V | RYOBI MJ-21
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- Опубліковано 7 лют 2025
- I have 5 electric jigsaws that runs with 110V. It is hard for me for working outside or far away from electric source. I decide to choose one of them and convert it into cordless power tool. "In condition I fail, I still have 4 tools left, but if I succeed I learn something new and have video for you" this is what think before I start the project.
DC motor
Price 4$
The new original 775 high-power DC motor, both front and rear are ball bearings, the rated voltage is DC18V, 17400 rpm (can also be used for 12V or 24V), high-speed and large torque, originally estimated to be used on power tools.
Motor diameter: 42mm
Motor height: 67mm
Shaft diameter: 5 mm (4mm in flat position)
Output shaft length: 14.5 mm
Weight: 350 grams
Rated voltage: DC18V
No-load current: 1.45 A
No-load speed: 17400 RPM
DC12V current: 1.3 A No-load speed: 11300 rpm
DC24V current: 1.68 A No-load speed: 23500 rpm
Battery adapter
I bought this adapter form China price 4$
The adapter is suitable for the Makita lithium battery
Battery Lithium battery & charger
I bought this battery and charger from China price 20$
The battery is similar to 18V Makita battery, but different quality.
I hope you find this video useful and enjoy!
I am happy to receive feedback, suggestions to improve myself.
!!! I'm sorry for the mistake if I did this video !!!
** I still keep some parts, I want to help the world environment **
Thank you very much for your likes, comments and subscribe!
Have a nice day
Gear Show
4:38 that is such a neat and smart way to find the center point, I love it
I'm glad you love it, thank you!
@@GrzegorzKr oh hello, you must be from the department of redundancy department...
@@HunterRodrigez rofl. the centerpoint trick only works with a perfectly aligned bench drill though. pretty smart nonetheless.
@@mediajunkienl Well, I'd say it's more reliant on having a very accurate chuck, and drill chucks usually aren't. I'm surprised it worked.
@@Nevir202 You are very right, but mine also has some play in the drill body that's on the rail, adding extra eccentricity :)
When this model came out, it didn't have battery power. It's fun to see these old tools being transformed into the latest tools. Great technology. I'll try it myself.
Cordless does not mean better.
Your work style is both inspiring and educating. Although those 18v battery packs are more expensive than the jigsaw itself and I wouldn't do a conversion like this I've learned many tips and tricks from your videos. Please keep shooting...
The idea of using a battery charger is a really great idea.
And the working environment has been refined from the dirtiness of the beginning.
It's refreshing to watch.
Really amazed to see this much accuracy drilling without a lathe machine.
Hats off to you 👍
I'm glad you liked it! thank you so much!
Excellent demonstration .
I have A reciprocating saw 110 volts and Black and Decker looper saw 110 volts.
Being from India where voltage is 220-240 volts.
I use a transformer to convert 110 to 220-240 volts.
Maybe Watching your video I am getting encouraged to go for battery conversion.
Other tools I have too and all are 220 -240 volts
Motor replacement and conversion from AC to DC. Changing out that spindal was awesome! Great job Gear Show 👍👏.
Yes, thank you again :)
Clean & tidy workmanship+ideas...kipidap
It's fun to see these old tools being transformed into the latest and much more power tools. Very inspiring!
Yes they are! thank you!
Great job to modify a tool that it looks like it was from factory. Nice that the motor is aviable to buy and makes me want to build my own :)
Thank you! I'm glad it helps you.
太厲害了！
這視頻網站跟本是教學等級了！
以這位厲害的高手手藝
應該能設計出一台
萬用的手持工具機
快速轉換任何手持工具機！
讚！
您的言语使我变得更坚强，我将尝试创造新的事物
The feature I like the best is how it stands up while leaning back on the battery. Great conversion project.
I'm a Huge fan of your work, I love the way you present your restoration and it means a lot to us when we are in need of such DIY restorations.
My only request is to see you restoring a Table Fan and making it run with 12v Bosch powertool Battery and an 895 DC motor, so that it could serve as an emergency fan in times of power outages who's is very important for fathers of small babies like me
Thank you for making request to me. It is more reliable by using brushless motor.
Glad to see your conversion. You,re a master !!!
Wow, thanks!
When I saw the shaft fitting correctly on the motor that was the end of the show. Great job!!!!
Yes, I feel like you too. When I finish that part I feel nothing difficult left.
Every thing is nice and tidy, makes it very easy to watch, Good work.
9epsosspspsozpzozzpzkssk😦😈😇😶😣😲😴😑😑😲😧😲😧😤😤😤😤😤😤😤😤😤😤😤😤😤😤😉😉😉😉😉😉😤😤😤😶😶😶😤😤😤😉😤😤😤😦😦😦😧😧😦😦😧😧😧😧😧😧😧😧😧😧😧😧😧😧😵😧😵😧😵😵😵😵😵😵😵😧😧😧😧😧😧😧😧😧😵😚😐😦😦😦😚😚😚😚😦😦😦😦😦😦😶😐😶😦😦😶😦😣😵🏡🏡🏡🏡🏡🏡🏡⚓🏡⚓🏡🏡⚓🏡🏡⛲🔧🏡⛲⚓⛲🎳⛲💈⛲🎳🎳
Glad you liked it!
My friend was very cool this modification you made on the jigsaw
Thank you!
When I see cord to cordless conversation video I immediatedly like it for the effort and then watch it.
Thank you so much! I'm so glad you like this content.
I had this idea about a month ago and here UA-cam is reading my mind. Perfect execution but I think I will just stick to buying them already cordless
Joining a new shaft to the motor is very hard. I use a lathe and it is still difficult. Well done.
Yes, that part is really important in this project. Anyway thank you!
It is very satisfying and knowledgeable to see ac motor to dc motor replacement
Awesome sir keep it up
Thanks and welcome
Матвеева в студию с ляхометром ! 😂😂😂
Да идея имеет место быть. Но что бы сделать это, нужна тонна станков и тд. Проще купить за 4-5к такой же на аккумах)
@@MrEcco94 " типу самоделка не полная Ху*йня но и в тоже время это пьяный умысел автора изобретать велосипед заново !
@@Philip_Morris_666 типа того))
250 полуляхов из 250!
Матвеева смотреть вообще смысла нет , у него на всё один ответ ,что всё можно купить ,а эта самоделка неплоха тем что автор не рукожоп и сделал относительно всё достойно 🤷♂️
We were waiting for your new video with my son to watch it....keep going mate!
Thanks, I will try my best to make new video!
Brilliant wonderful job Respect from UK
Yes, thank you! it is my honor
EXCELLENT VIDEO. CLEAR AND PRECISE. GREAT FILM QUALITY!
Great conversion and great tip on finding center with the sand paper plus drilling center using a keyless chuck and staying vertical.
One thing to correct though is your SPM (rpm) figure. The jigsaw is rated at 3200 SPM but you’re reading up and down resulting in a figure ~ double the actual rate. You need to record with the laser at either the top or the bottom of the stroke to get an accurate reading.
He took a perfectly good corded saw and turned it into a POS 18v battery saw. A set of new brushes and it would have been as good as new.
Does it really matter? Either it has enough speed to get the job done in an acceptable amount of time, and enough torque to not stall or drop to such low RPM that it overheats, or it doesn't.
@@tarstarkusz but now he can buy cordless and corded new saws from yt revenue 🤣
@@heimdall4148 Your logic is impeccable.
Some of parts in video were very satisfying great job.
Thank you for the scenes where you turn the soldering station on and off along with the fan.
No one is talking about the fact he made it USB!! altho srsly good job :)
This is great, my only concern would be the switch handling the much greater current you need running at low voltage DC. If you run into problems down the line, I’d check that first.
Should add a Mosfet for high current switching. The original switch will burn out very quickly under load.
@Sheran Naidoo I will try your idea, thank you so much!
@@gear_show Yeah DC current draws more amps than AC. But LOVE your work better than landfill
You make the old tool like a new tool 👍👍👍
I'm glad you like it.
@@gear_show thank you sir
I always waiting your new video 😁👍
2:36 ah, so we're using alchemy for the conversion
2:42 oh, never mind
改装技术很好 但一般人是无法做到的，這重点是要说改装技术， 要不然买一把现成的更省事。 点赞、
是的，你说得对，谢谢分享！
@@gear_show 是谢谢你的分享 ！ 你有技术，还善于发明创造。好，点赞。
nice conversion from a record player lid to washbasin :)
Haha you know that part, I see it in the container trash.
Excellent tutorial. I'm going to convert a corded leaf blower to a BATTERY!!!!! Thank You!!!!!!
Very cool video. I have an old jigsaw I wouldn't mind converting to 18 or 20 volt myself.
You should
I wouldn't mind either it's not a terrible idea, in fact it's not even awful! 😂
Professionally done as always.. Just awesome
Thank you so much 😀
nicely done it’s kind of interesting how the old Ryobi color was so close to the old Makita Color i know that tool manufacturers generally own that color legally i have a freind that owns a Machine Shop and they manufacture some of their own Inventions and Products that they get Powder Coated and they asked the Powder Coating shop if there was a less expensive way to get it done his answer was yes i used to powder Coat Coca Cola machines and i have a lot of that red in inventory so they got a discount using that Red but they aren’t allowed to say it’s Coca Cola Red as that’s owned by Coca Cola so it’s okay to call it Soda Pop Red because that’s what the manufacture calls it when they make it LOL
The video was... wait forr itt legendary 👍👍👏👏
Thank you!
Видео надо было назвать как из рабочего лобзика сделать не рабочий вложить в него ещё деньги время и вуаля он работает да ещё и от аккумулятора. Это просто фантастика 😂.
Но в целом, идея не плохая. Интересно, а куда потом девается весь инструмент? На продажу? Судя по конструкции и внешнему виду, этот инструмент давно устарел и не выпускается. Как и все другие в его видео.
I rather sell AC type jigsaw and then buy second hand DC type jigsaw.
But, this help to understand more about the jigsaw and tool.
Thank you.
You're welcome! Thank you!
Nice video my friend. Great job.
Hello MR. NVC! Thank you for visit my channel, my friend.
I have a blue Ryobi scroll saw for 20 years. Still works great. They are better made then.
Conversion? You nearly built it from scratch mate 😂😂😂👍
😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😅😄😄😄🤣🤣🤣😂😂😁😁😁😁😉😉😁😄😄😃😃😃🤣🤣🤣😂😂😂😂😂😂😂😂😂😂😂😂😂😂😂😄😄😄😄😄😅😅🤯🤯🤯🤯🤭🤭🤭🤭🤭🤭🤯🤯🤯😡😡😡😡😡🤬🤬😰😰😇😇😇😇😇😷😷😷😷🤡🤨
funny that original motor would run on battery without rebuild
@@JavedKhan-nf5yb pp
Wow good conversion of Cord to cordless. U like cordless thing alot.
Yes, I like them both cord and cordless tools.
@@gear_show but was there a problem in the ac motor which was there in the jig saw or u just replaced it and put dc motor to make it cordless
👏👏👏😎
If you clamp something like that in a vise use an old rag or the like to prevent markings and CLAMP it down damnit!
No need for that much grease...don't worry a small dab will do the job well.
I like your homemade sticker...it really adds a nice touch. :)
On the sideline....most small apertures like this saw use universal motors which means it can be powered by AC or DC. That's why you could make that conversion.
If one is in doubt, it's better to look it up before one butcher the thing. :)
Consider 3d printing the battery adapter next time, there is a lot of adapters and prototype platforms readly available for Makita batteries in thingverse.
Yes, you're right. I will do it next time. Thank you so much!
Makes sense, I was interested in the idea if it was possible to go back and forth between Li-Ion and a corded option as both scenarios have their limitations, nip them both in the bud and move on with it.
Couldn't take my eyes away. Thumbs up from me!!
I'm so glad to hear that, thank you so much!
面白かった！！ 自分も、USB出力の変換アダプタ使って一社のバッテリーで様々なメーカーの機器を動かせるようにしています。
The old 7.2 volt twin battery Black and Decker tools work great when corded for 12v using crocodile clips onto a car battery. Many of the Johnson motors used will accept a range of voltage and can easily cope with the current. Never had any problems and can pick up tools almost for pennies.
12:10 at this point the farmer in me is screaming "just grab a hand full and slap it in there"
Very neat conversion. Nice work 👌
Glad you like it! thank you!
I was thinking about this a couple of days ago, just oposite. making my ryobi's cordy's.
The universe power bring this video to you :)
I did that a couple years ago. I found a 20V mains transformer and a simple bridge rectifier that fitted in my old and knackered NiCad "Ryobi One" battery pack shell. It worked really well as a handy way to keep working (When near a wall socket) if you'd ran all your packs flat, but the unit was way heavier that the 2.5Ah packs I'd got used to at that point, and it kind of felt wrong paying extra for cordless tools, only to shackle them to a wall socket.
In the end I just bought a handful of aftermarket Li-Po packs so I wouldn't run out of charged ones. They're cheap as chips, and I've never noticed any difference between them and the OEM Ryobi Li-Po packs (That are 4x the price !!!).
@@Reman1975 You could have put the transformer at the plug end and run the 20v to the battery casing.
@@philtowle4683 Could/should have, but at the time it was easier to fit it all in the space the dead Ni-Cad's had occupied and use an old computer PSU's "kettle lead" socket to get mains power directly into it. To put the transformer near the wall socket I'd have had to buy an enclosure for it.
IMHO it would be nice to hear you talk and discuss the project struggles, costs. Silent movies went out in the 30s
it would have been easier to just connet the electric motor to the backend of the ancker from the outside, then the factory alignment would had been preserved... just saying... other than that... nice job
Awesome idea bro good to see old tools getting upgrades 😎
the only thing is that the button contacts will not survive later, because the consumption has increased from 4 amps to 10-20
Yeah .a solid-state relay should do a trick
The creativity is very good. The work is neat and complete.
So its actually a different machine in the old case
same machine, different motor
ez a jövő, tökéletes munkát csináltál, gratulálok
While it's aways fun to tinker like that, cordless tools don't break the bank nowadays, especially not if you already own the batteries. Corded tools are almost never brushless, so you lose efficiency. Fun project, but hardly worth it. I'd rather build a huge power bank to power my corded tools. At least that's a flexible solution.
...but he replaced the motor, didn´t he? Couldn´t you just put a brushless motor in?
You really a tools modifly expert, good joy, ilike to see
your vedio verymuch thank!
Конечно прикольно для общего развития. Но автор слышал про лобзик на аккумуляторе? Двигатель и аккумулятор самое дорогое в инструменте, дешевле купить уже готовое решение)))
Да и вообще конструкция жиденькая)
Также думаю. Нет смысла заморачиваться.
А вы слышали про то , что ютуб платит за количество просмотров? Если он пойдет, купит лобзик готовый, и снимет об этом видео, то его смотреть не будут, но теперь после того, как видос узрело 2,5 ляма людей он может себе купить тележку этих лобзиков.. И да, вы серьезно думаете, что он не в курсе что и сколько стоит)?? Как минимум наивность такое писать . Отвечу теми же скобочками в конце вашего коммента )))
Bro lots of things to learn from you . Thankyou so much for this video
Nice job! Very inspiring! What do you use to create and print the nameplates?
Thank you! I use photoshop to create the stickers.
Nice creative work.
I was trying to see what he used to convert VAC to VDC...
...
Then he changed the whole system...
If he did that it'd be a simple rectifier and a switching circuit
@@nikims_ lot power loss if using inverter
@@zeddybuddy8619 ? Okay lol? Do you know how any digital electronics device you use that takes power from the outlet works? Like a workstation, or gaming machine?
@@nikims_ that for sure but we talk about 18v battery..it will be different story
@@nikims_ that my friend is when u want to apply wall plug electric to a dc device... also sorry my wordings might be misinterpreted...
@Zeddy Buddy yes i agreed with power loss...
what makes me asking the question is actually the build is so clean... it is possible making diy power inverter circuit inside the jigsaw body to accommodate all components thats what interesting to see... however even with that, 18v battery idk maybe 4500mah that size? and normally a 500w-700w ac jigsaw, that battery gonna last you about 5 mins roughly? so actually changing the motor to dc motor is actually the best solution...
Awesome conversation 👍🏻👍🏻Can please do a conversation from cordless to corded that actually works. Thanks man. Keep doing what you’re doing.👍🏻🙏🏻☮️
Thanks for the idea! I think it isn't difficult to convert cordless to corded tool.
Actually, brushed motors in corded drills,jigsaws and circular saws are universal motors.They can run on both ac or dc.Could've tried using the original motor.
the voltages wouldnt work. The current would be around 20x too low.
Brilliant work
Thank again!
The problem with this is that you have no undervoltage protection for the battery - battery powered tools will switch off when the battery voltage drops too low, to protect the battery from overdischarge, which can cause permament damage.
I think the battery PCB will handle this. Anyway thank you so much for sharing!
@@gear_show Unfortunately Makita, Milwaukee and Dewalt have the overdischarge protection in the tool rather then the battery... The pcb in the battery is only for thermals. Ryobi (to my knowledge) is the only major brand that has over discharge protection built into the battery.
@@bengrant4044 Then again that battery is not Ryobi.
@@kdthehun Guessing reading comprehension isn't a strong suit of yours... If it were a Ryobi battery it would be safe from overdischarge... Since it is a Makita battery; if the voltage gets low you can ruin the whole battery (ie it will no longer power the tool, and will no longer take a charge)
@@bengrant4044 And here you are assuming that everyone's first language is english. Köszi szépen hogy kijavítassz, és gúnyt űzöl belőlem.
Awesome! Excellent job and informative video! Thank you! Cheers from Alaska!!
it’s a shame that do you not added light LED near knife.
That seems less practical on a saw like this than on other tools, generally you are above it and aligning based on the top, not watching exact position of the blade which would mean your head is off to the side and then far easier to start drifting back and forth making corrections instead of just keeping it straight in the first place.
Great work ....with precision ....luv from india💌
What's going to stop the torque from eventually spinning the motor around and ripping the wires loose? Did it fit snugly enough to prevent it from moving?
Exactly, I think about the same effect... I fixed a manual mixer that had a motor electrical connector broken because the same effect :-(
This is called the love of creativity 😎 ❤️❤️❤️❤️
I would have added a variable pot, way too fast for some uses. Great job though
A pot won't handle the high current draw. One viable solution for those not into electronics would be using an ESC (electronic speed control, brushed motor variety) driven by a servo tester. The servo tester's pot will signal the ESC to vary the power sent to the motor. Both ESC and servo tester can be found a most large radio control hobby stores. Total cost should be below $30.
"your scientists were so preoccupied with whether or not they could, that they didn't stop to think whether they should"
Life finds a way
ر
Why didn't do it with a brushless motor and ESC?
My guess to keep the price low as possible?
They ain’t producing as much torque only speed
i watch some of your videos then i subscribe you coz of your content love from Pakistan
Can you post the link for the battery adapter? Aliexpress, Bangood or another one?
Está de lujo, siempre y cuando tengas todo reciclado, porque como tengas que comprar, batería, cargador, motor, te sale más caro que comprando la máquina nueva, pero no hay que negar que es una maravilla, bien hecho!
Super!
Thank you! Cheers!
Я-я, зерГут!
Love this guy's l don't care what people say about Chinese cheap labor means cheap
That's bullshit they are creative Smart people and besides you The one who chooses where you get the product from
There's a Ryobi cordless jigsaw on ebay for $30.
Always great job 👌
Thanks again!
Comes with built in phone charger 🤣🤣
Great video except for the fact that Google/UA-cam stuffed 12 ads into it. Absolutely ridiculous.
I actually want to do the reverse of this with my Mower, batteries are expensive...
Nah, you can get refurbished Tesla 3 batteries for half the price of Samsung 30Q's or 40T's and build some low-cost powerful packs that would last at least 5 to 7 years. Lumber cost more than batteries these days thanks to the Biden administration.
@@FarmerFpv That makes no sense, the Tesla 3 battery is far more capacity than needed, then the bother of tearing it apart, rebuilding a pack when you had to destructively disassemble the original pack plastic spacer to reuse it otherwise, then you cannot asssume 5 to 7 years because they are used and even new may not last that long if used regularly, so it would cost more, be a massive amount of time spent, be reconstructed in a dodgy way then subject to mower vibration constantly, just NO!
Doing the reverse would be relatively simple if you can find a switchmode PSU capable of enough current, that will fit where the battery went, and is passively cooled without vents in its casing since a mower produces an incredible amount of flying debris and dust so the PSU must be sealed to last long, but be designed to be sealed not you seal it up later so that it stays within its thermal design. The trickier part will be if the mower itself has a built in protection circuit that relies on communication from the battery BMS to run, then you'd need to disable or emulate that.
Then again, used ICE mowers are often inexpensive and if there is a market for your electric mower to resell, it could make sense to go that direction instead.
That was brilliant solution. Hats off to you Sir !
Thank you very much!
Проще на аккумулятопе взять сразу, зачем хороший сетевой портить.
Точняк.
а видео с 2,5 лямов просмотров из этого получится? Он теперь из-за этого может себе позволить телегами этот инструмент покупать и не попроще, как вам, а подороже и лучше)))
@@АлександрК-ы6ъ а видео с 2,5 лямов просмотров из этого получится? Он теперь из-за этого может себе позволить телегами этот инструмент покупать и не попроще, как вам, а подороже и лучше)))
That's some neat work and a cool idea...Impressed.
Unit is now heavier and unbalanced. Cordless does not mean better.
No one said it was better.....Author of the video clearly stated he did it for convenience as he has back up tools and used this as a learning process...it was for entertainment and learning, sit back, relax, watch and enjoy
New fanz here, watchin from ksa to philz.
Nice one...👏🕊👍
Это было бы хорошо если бы он был сломанный. А так испортил лобзик и потратил кучу времени
самый прикол двигатель в нутри просто положил без фиксации )))))
Niño, tú estás escapado
Impressionnant
😊👌
Me, um impressive skills great job. My fix second hand store buy for 35 to 40 bucks done unless then 1 hour. His sense of accomplishment and satisfaction. Epic min meeh. His time saved zero mine massive. Guess I got time to sit back and enjoy another video after all.
I love your channel. Greetings from Turkey. 🇹🇷
Good job, but if you like, I tell you some points of improvements about the electrical wiring.
First, your solder job is not bad, but also not perfect. The solder should flow by itself. There should be no need to smear the solder with the Tip. Wait a bit longer or use a bigger/larger/hotter soldering tip. And never ever tin-coat the wire in a screw connection. You might be safe because your switch is a spring-loaded clamping connection, but even then this is bad practice. Better is to use wire end ferrule and in clamp connection, you even don't need them, but you can if you like.
Great job. The only thing I'd point out is that I don't think the blade is fully inserted - The roller should be running on the back of the blade, not the quick release notch.
I thought the original jigsaw used a different style of blade. My older one did anyway.