If you like the video, please introduce it to your friends and social media !

изделие сомнительное , рабочее поле ножовки очень маленькое , что соотвественнно снижает срок службы полотна , вибрация из за кулочкового механизма огромная , что думаю мешает , держать за рукоятку при этом всем еще тоже вопрос сомнительный . для резки метала есть ленточные пилы в которых эти все недостатки давно устранены, а для дерева есть японская пила (так что название видео вообще не соответствует изделию)

Сегодняшняя самоделка из разряда сомнительных. Честно говоря, не ожидал от автора такой ерунды.

As usual, this is an amazing build! In order to make your saw blades last longer and to cut tougher materials, you would typically *increase pressure and reduce cutting speed* - I would therefore suggest to make a holder on top that can take weight disks (like ones you see in a gym)

I would have attached the gas cable where it does not move and attached a weight above the saw so that the saw blade worked itself into the material.

This is his first fail.

Разочарование! За исполнение-5,а за идею- 2 ( по 5 бальной системе) Я понимаю,что важен процесс! Ленточную сделал бы!😅

Apart from the fantastic tools you create and the precision you work with, I think the best bit about your videos is that I start out without a clue about what you about to do, that usually continues through the video until near the end, at which point it all suddenly falls into place and seems so obvious ... superb as usual 👍 I've seen you use the bicycle lever to control the speed of a drill before, it's such a simple but brilliant idea 😍

I like it! The neat thing about this tool is that it can much more precisely than one can do by hand or even in a vise. I'd have to do a lot of sanding or filing afterwards to get the edges square. That alone is a time saver.

Fine work. But was it so necessary?

I like the idea. Not sure if I'm happy about the device using only 50% of the saws teeth. you could probably get around it, if you are able to turn the saw blade, which would make it a pull instead of a push. what I really like is its speed adjustment. this might be handy for introducing less heat and for materials which are usually less easy to saw.

Nice idea. But I would change a few things. 1) Detach the handle from the saw. Your hand introduces micro movements, which will result in less accurate cuts and more wear and tear to the joints. 2) Add some weight on top of the saw to compensate for the forces your hand was responsible for. 3) Add a bracket to the drill so that the axis of the drill is stabilised. At 17:40 you can see the drill vibrating a lot. That's bad. 4) Add some screws to your axle brackets. Now all the forces go through glue. Wood glue is pretty strong. But it's not made for shearing forces. Anyway, good first prototype. Keep it up.

Brilliant as usual. It is really helping to keep everything natural with the precision of a machine. Perfect Combo. Domo Arigato Sensei.

It would have been easier to just buy a mechanical hack saw but this was an epic journey to achieve a beautiful result. To the critics “it’s not about the destination it’s about the journey”. Always a pleasure to watch your intriguing videos.

This has to be the most amazingly complicated reinvention of the reciprocating saw AND BEGS THE QUESTION ' why ? ' And it is quite entertaining watching this device in use !

I love your work and engineering but I can't say this is something that makes sense to make .. And I'm a big follower and seen all your videos. Holding the trigger and arm swing action was eppic

Another perfect video on who someone can make a tool for themselves. Thank you for the video.

I would have put the handle on a small piece of wood next to the vice. No more shaking your hand to bits.

Excelente tutorial maestro, la precisión y la limpieza elevadas al máximo nivel, cómo siempre, la herramienta casera original y peculiar si qué es, gracias por compartir tanta creatividad y conocimientos, un saludo cordial y por supuesto un merecido like desde Narón (Galicia)👍🤓😜

In General a good idea but put some weight on the upper platform, remove the "gashandle" and build a knopp aside the machine to regulate the speed. While the machine is sawing you have time to do other things! Greatings from Germany!

As an experimental tool it is really amazing (and well-built), but IMHO rather looks like a joke - I cannot see any practical benefits which worth materials and efforts spent... but I still applaud your inventiveness and accuracy in your work!

Perfect for cutting parts with precision. Easy to weld later.

Interesting machine, but why not just install a metal cutting blade in the crosscut saw jig you have mounted on the wall?

What is the black ring with the set screws called?

What is the geese and liquid you are using to cool the bit?

So much for almost 20 minutes of lessons on applied laws of physics (and incidentally on micro and macroeconomics - because of the effects of self-construction on private and global economic households). And psychotherapy: the knowledge gained that you can do something like this yourself... Thanks for so much concentrated know-how!

You Japanese woodworkers are the BEST / most ingenius!

I really like your videos, especially the precission of your work :) You often use tape as a construction aid and glue to fix things. Can you please write, which type (brand and product) of tape and glue you use? Thanks a lot!

Good performance! Thank you 先生

Good work on powering this hacksaw. We shared this video on our homemade tools forum this week 😎

I always enjoy your serious videos, but this contraption you made here is just funny 😂 perhaps move the throttle elsewhere and also enlarge the aplitude so all blade is used, not only half, for those who follow these as a guide. Thanks, Creator.

I in awe how clean and precise you work!

bonjour JSK, comme toujours tes vidéos sont un vrai régale, merci

Awesome idea and as always new and useful creation 👍

tell us about your clamps...name and convenience with them.....thank you...

Hack saws are ment to cut on forward stroke, on back stroke you need to ease the tension, otherwise the teeth will break. Industrial hack saws are made so that it raises the blade on back stroke.

Only glue for wooden parts?

nice... i kind of made a saw like that for stonecutting with a diamond coated wire, for the motor i took an old recipro saw that i will now think to spice up with that handbrake- throttle. thanks for the inspiration

That is a really cool idea for speed control!!!

Так, два раза в день делаешь и спина вообще болеть не будет 😂😂😂

Him whittling the handle of the saw for the brake lever was the jankiest thing I've ever seen him do. LOL

increible herramienta casera, lo haces parecer facil de hacer, seria fantastico para luego hacer un upgrade de la misma, haciendola que corte sola, algo asi con un plug and play, feliciades...

Interesting. Which material are you using at 15:45?

Why not putting weight or a spring on the handle and place the bike level throttle somewhere else?

Nice build, but it could be better: Having the handle reciprocating is a bit awkward; not exactly ergonomic... If you implemented a guided bar to mount the "throttle" to, you'd get a stable handhold. Much easier on your joints. This bar could run above the blade-carrier, pivoting on the back-end and being guided between bearings near the front. And you can make it as fancy as you like from there... ;-)

why do you need to move your hand back n forth.... only the saw blade must do its job.. make some changes so that there is no need to hold the saw arm.

Not bad but slow down the cuts so you are generating less heat when cutting, add weight to the top and maybe add a drip feed for lubricant

It's really great. I've been watching your video every night since I discovered it. Incredible. Truly an artist. May I know where are you from?

wow! your skill is amazing.

You will get uneven blade wear without using the full stroke, though that will require a modification for torque.

Ну тут без доктора Дью не обойтись...

Good old reciprocating saws, mostly replaced by bandsaws... still great for small productions.

Good work ! 👍👍👏👏 I like your video, thank you my friend ! Friendship of France

GÜZEL fikir.bagımsız motor kullanıp makkabı kulanmayabiliriz.testere üzerine agırlıkta kullanabilinir ve hız kontrolu dimmerlede saglanılır ellerine saglık

Could You please build something similar with a Japanese handsaw to cut thick wood with extreme precision? I really would like that, since I live in apartment and as common, we can't use powertools but only handtools... If You can build a Japanese handsaw armcut to go really straight with mm precision, would be great! Thanks...

hi, a really nice idea, I thought you could make some changes, instead of using the drill as a motor you could just insert one or two motors, also, look for a way to change the saw, so you can use different saws, maybe using clamps. Greetings

Man this vid is hilarious. I love this chan, but this is easily the silliest thing I've seen you make.

I love this, thanks for sharing

i‘ve been following this guy for 3-4 years. he is a genius. this one is a bit too „Rube Goldberg“ for my taste but nevertheless brilliant.

Creativity, DIY and design etc. Is top, but in this case I feel that a small bandsaw or portaband with stand is more efficient, inexpensive, precise...

I could imagine a whole lot of other applications for this mechanism, but none of them is youth compatible 😂

Muito bom !

Çok koplike ama temiz bir çalışma. Tebrikler usta.🙂👌👍👏👏🙌

Чем бы дитя не тешилось, лишь бы не руками!

Why is the motor switch on the saw handle? I think that's clumsy. Otherwise a nice story.

l'idée est trés bien, mais je pense qu'il faudrait mettre un poids dessus la scie sur la partie mobile, un moteur électrique avec un interrupteur pour ne pas avoir à tenir la poignée de vélo... ça serait plus pratique et efficace à mon humble avis. machine à améliorer. bon courage de France!! sinon j'adore ton coté méticuleux et la précision de ton travail en général.

Can someone please take me through the justification of why you'd do this over an angle grinder or reciprocating saw? (Don't say cost - that's a silly argument considering the materials and time that went into this.) I love all other JSK's videos, but this one strikes me as a bit silly.

One more reason why you should have paid more attention to the "laws of mechanics" in school ;-). Simple and effective solution for cutting metal to size without breaking the bank.

Why do you hold the handle?

One of your best videos

So beautiful, so unnecesary.

you started well! with quality bearings and good quality raw material ! This invention of yours called manual Powerhacksaw ! the result you did was not very good ! 1 - you forgot the counterweight so that the saw lowers as it continues cutting 2 - to attach the drill you ended up making a more complicated system ! 3 - the WORST part is you end up with your shoulder joint and your elbow holding the trigger! in 1 week you will wear out all your ligaments ! 4 - you have made a very large saw with only 10% of blade usage cutting capacity ! I want to see more videos of you on how you would improve knowing now the mistakes you made. I really want to see version 2.0 of this project! a more portable, efficient saw, capable of cutting at 45° angles, with a counterweight, using more saw capacity, and with the drill being easier to remove, place!

Very elegant, except I wouldn't enjoy holding on to the handle for the entire cut. I expected a lock or keeper of sorts to keep the tool active without having to hold the control.

jnteresting concept. thanks for sharing

professional

木工の初心者です。 1分30秒あたりで、両面テープで木材をガイドとして貼ってトリマー？でラインの通りに削っていましたが、ガイドを削ってしまうことはないんですか？ 特別なビットなのでしょうか？本当に初心者なので、わからないのです。

Could you make a machine to sharpen this carbide blade

這次的創意個人感覺沒以往那麼驚艷⋯但是工藝還是一如既往的優秀啊！

Excelente! 🇧🇷

Thank you!

No elbow grease there... 😄

OMG! This guy is a genious!!

That's one nifty labor saving device!

1. Its better to cut on an angle. 2. If you want to cut flat you have to have a lower TPI. The blade you are using is too fine or high TPI.

"Why dont you use the whole sawblade? Since you bought it" :)

hello you only paid for half of the blade? if so, that's perfect. if you paid for the whole blade, why not use it completely? the sawing stroke is too short, it needs to be lengthened the cutting speed for a handsaw is 1 second per blade length. you're cutting too fast jf

Такого бреда я и представить не мог.

and about the clamps on the drill...thank you...

Леруа побеждён!

А этот квадрат действительно сделан из дерева, или переводчик хлебнул лишку перед работой?

You’ve paid for a full length saw blade- you should use it

Помоему самотык туда прямо просится приделать...

よくやった、素晴らしいよ

bonjour vous n'avez payez que la moitié de la lame ? si oui c'est parfait si vous avez payé la lame entièrement pourquoi ne pas l'utiliser complètement ? la course de sciage est trop courte, il faut la rallonger la vitesse de coupe pour une scie à main est de 1seconde par longueur de lame. vous coupez trop vite jf

Now if this doesn't qualify as a chindōgu I don't know what else on this channel ;) Very nice and accurate build though.

1:44 Where can I buy this clamp?

Brawo tamamen zeka ürünü bir çalışma.

Доктора!!! Этот японский крендель затмил САМОГО Полуляха..... 😲

EXCELENTE

いつも思うけど形にする力がすごいなぁ。握った手の負担大きそう。レバー握れば自重で切れるようにするのはダメなんですか？でもそうなるとピストンのところに無理な力がかかっちゃうのか。