As everyone is saying, the saw could use a bit more stroke, I also noticed you could change the length of the drive rod to adjust the position of the saw. Sweet piece of work, keep it up!
I was thinking the same but it's do limiting using hacksaw blades. Large items would have to have adjustable vice, strokes etc. It's just not efficient hence why the band saw type units are regularly made and work much more efficiently as well as cutting much faster. This build is great as usual but the design is not good. It's going to take much longer to cut even longer than using a hacksaw by hand sdince by hand you can get full strokes of the saw.
I am a machine designer by profession and give this an immense thumbs up. Your design and workmanship are top notch. I started working as a machinist in the tool and die trade and made much use of the power hacksaw. It would make short work of any fat bar of steel. I'd have that cutting the stock and start setting up the Bridgeport nearby to do the machining. I have a home workshop and am fed up with my small horizontal bandsaw as the blades keep breaking. I got to thinking about a metal chop saw and remembered the power hacksaw. The big downside I see with this type saw is that only a small portion of the blade does all the work. would be nice to modify the stroke length. That would require incorporating a shaper mechanism but now your really going down the rabbit hole with the cost of materials, machining and time.
the diameter of the gear which the saw is on would have to be the same length as the saw blade itself in order to get a complete stroke. making this happen would require a new build because the body is not meant to house a gear that big.
Lucas Cole - A moveable vise, or vise jaw, would be a better solution. Then you could keep the short stroke but use more of the blade as it dulls, or he could just send me the partially used blades. LOL
Solid build, excellent work. Might i suggest also a drip oiler for the blade A larger drive wheel with a series of bolt holes from near the shaft to the outskirts of the wheel for stroke length, and a pivotal vice with angles ?
Absolutely Badass!! You guys are 1/2 a million+ subs without saying a single word! Gotta be some kind of youtube record........having the best fab videos and best music!!! Do you have sponsors yet? you guys inspired me to buy two different welders, a plasma cutter, metal bandsaw, metal chop saw, and thousands of dollars worth of practice metals.....couldnt imagine the line up of sponsors drolling over your content and proven customer attention........Thanks Again for the incredible videos!!
Apart from the various comments on the stroke length, you should have built in a cam lift mechanism to relieve pressure on the blade during the return stroke. Regular power hacksaws have a hydraulic lift mechanism to achieve this. You will observe that the blade goes blunt very soon with this build where the pressure on the return stroke tends to blunt the saw teeth. A small 1-2 mm lift cam on the return stroke will serve the purpose and can be easily incorporated into the mechanism.
Need to add a "bump" at the end of each stroke to clear out the chippings in the blade. You can also scrounge broken band saw blades from shops and then make your own power hack saw blades.
changing the stroke is not easy without messing with the driving gear. Shortening the arm will not change stroke and it will only bring the saw closer to linear bearings center instead of the front section. You could push the vise fixed jaw closer to the engine and thus be able to cut wider section. Right now the back jaw is sitting at roughly center of the blade. If you rotate the driving gear to extend the arm and push the saw to its fwd limit you can easily find the limit point at which the rear jaw can be moved to. Just an added thought. The principlis really good. Enjoyed a lot, again
I really like this quality build! There are comments saying that this is for small things, but that is not true. It is about 3 to 4 times faster than doing it by hand. Finally, the precision is much better than a bandsaw, especially thin cuts. I know these things because of 50 years experience. Or, I may just be feeble? Yes, a longer stroke would be desirable. A bandsaw is a very nice machine to have too! Thanks for posting! Jerry
What about adding a limit switch so it turns itself off when you bottom out the arm (rather than cutting into the workpiece support a little bit each time?) Cutting fluid dispenser might be a nice touch and a notice quite a few people have mentioned about the short stroke. As much as anything, lengthening the stroke will be a good way to regulate the blade temperature along with cutting fluid - your blades will last longer
Very awesome. I would make the back stop adjustable so you could move the work to different parts of the blade, that way you could get more life out of the blade. That and lengthen the stroke a little.
Ideas that I think would be cool for you guys to do: Extreme office chair (features: motorized raise/lower, recliner, leg rest, etc,) Extreme combination safe Extreme baby crib (if you or someone you know has a need for one) Could be cool... could be super dumb... just throwing them out there. Love the videos, keep up the great work!
Very good saw congratulate you. I know that many have opined but, mine is a suggestion, the ones I've seen bought, have a cam on the reducer that raises the saw when it advances so it does not touch and wear this way your saw will last twice, congratulations.
Great work as always. I think most power hacksaws I've seen have a cam that kicks the blade up on the return stroke. I suppose so that the teeth aren't being dragged backwards through the cut.
Excelente trabajo. Como siempre. Mucha prolijidad. Pero habria que ver la manera de que se pueda hacer mas largo o gradual el movimiento de oscilacion de la sierra para aprovechar mas de la misma
Nice work. I think this is the only project you've done that I didn't think you'd fully thought it through. I think having the permanent jaw of the vice back further towards the motor, you'd have the option of utilising more of the blade. The stroke is irrelevant, but it helps to shift the work to get the most out of the teeth. My two cents.
Το πριόνι πρέπει να έρθει λίγο πιο μπροστά και να βάλετε μια "μπιέλα" πιο μεγάλη για να κάνει μεγαλύτερη διαδρομή. Έτσι όπως είναι τώρα μένει ανεκμετάλλευτο μεγάλο εύρος. Κατά τα άλλα, εξαιρετική ιδέα και ακόμα πιο εξαιρετική υλοποίηση! Μπράβο παιδιά!
*Look at 9.30:* instead of using a *fixed* piece of angle iron to use as a vise jaw, or stop [the one on the right], remove that and modify the bed which it rests on. Add a slot so that it can be slid left/right so the piece being cut can be positioned under portions of the blade which have not been used. I believe that it would be easier that changing the stroke length of the blade. *Just a thought.*
One thing this lacks and desperately needs is a lift mechanism on the return stroke so as not to prematurely dull the blade. Also as others have mentioned an adjustable stroke length is a good addition as well as some method of moving the fixed vice jaw for more blade length usage. Still on the fixed jaw, some gussets behind for strength will be a good thing also. The speed adjustment is a good thing for cutting tougher and harder materials. John, Australia.
Hi bro it's very nice and looking easy to understand and making for me I am waiting for next video post I thank for this power hacksaw. Please show home made slotting machine
Καλά εντάξει Άντε Υεια! Ολη την ώρα σκέφτομαι, τι άλλο θα φτιάξουν, και κάθε φορά βγαίνει ένα τούμπανο εργαλείο που δεν μπορώ να το πιστέψω! Μάγκες το εργαλείο καράτσιλίγο! Δεν έχω λόγια, Μπράβο ρε παιδιά!
One thing I see is that it is lacking the cam that commercial units have to lift the blade away from the material on the back stroke to extend blade life. Of course the way you have it working you can flip the blade end for end when the portion being used wears out.
From the scratches on the saw blade, and in order to utilize nearly the full length of the blade, you need a gear 3 times bigger than the current large gear.
Awesome job ! - Fantastic machine ! - The only thing that lets it down is that geared motor is way too slow ....You need a similar worm motor/gearbox with a faster output speed then it will be 100% perfect ! - Great video and workmanship man :-)
The short stroke of the blade is desirable for larger pieces, but with this design large pieces wouldn't fit in the vice without hitting the front sawblade holder :/ I think an adjustable arm for the stroke and some sort of adjustable clamping system would be the best way to maximise what you can cut as well as the life of the blade, but this is what this channel is about - cool functional items that people can draw inspiration from :) Keep it up guys, I'd love to see a homemade metal lathe next.. It would be quite the challenge getting it precise and rigid enough.. IIRC, back in WW2 some factories made the frames of large lathes out of concrete instead of expensive cast iron, perhaps you could use a similar construction method.
adjustable arm would only change blade placement not stroke, which would still be useful though in this case. To change stroke he'd need to modify the crankshaft/crank gear thing.
I was thinking one way would be to use a nema34 cnc stepper motor and lead screw for the motion. Then you could adjust the stroke length and the design might be more compact.
I'd suggest move the blade or where it holds the object it's made to hold something bigger but can't because on the back stroke it would hit the blade arm and at full stroke half the blade with never be touched
only particular side of the sawband that will worn out over time, and you should recalibrate your off switch position so that will not cut small amount of your base plate after material completely cutted
Totally enjoy the tools you make , and the color is also a favorite of mine. The big bench vise is a wow wish I could get out n build one too. Yours looks very sturdy
Хороший станок, я сейчас подобный делаю. Единственный косяк автора, я считаю, то что пилка использует только треть зубьев. Она должна использовать всю длинну полотна, так пилит эффективнее и меньше износ зубьев...
![Power Hacksaw [Restoration]](http://i.ytimg.com/vi/v7429aWOTF8/mqdefault.jpg)
![Power Hacksaw [Restoration]](/img/tr.png)
As everyone is saying, the saw could use a bit more stroke, I also noticed you could change the length of the drive rod to adjust the position of the saw. Sweet piece of work, keep it up!
Nice job, might I suggest lengthening the stroke of the saw a bit though
Benspeed's Channel was thinking the Same because he just uses the middle and the rest of the sawteeth stay like new
small gear, plus it needs bigger motor this is fine for small things because you can just leave it to get cut by it self
I came here to write exactly this... you could have the stroke length adjustable that way
Maybe an adjustable stroke for wide things.
I was thinking the same but it's do limiting using hacksaw blades. Large items would have to have adjustable vice, strokes etc. It's just not efficient hence why the band saw type units are regularly made and work much more efficiently as well as cutting much faster. This build is great as usual but the design is not good. It's going to take much longer to cut even longer than using a hacksaw by hand sdince by hand you can get full strokes of the saw.
I honestly don't understand why you guys don't have 1M subscribers... this is an awesome channel!!!
I am a machine designer by profession and give this an immense thumbs up. Your design and workmanship are top notch. I started working as a machinist in the tool and die trade and made much use of the power hacksaw. It would make short work of any fat bar of steel. I'd have that cutting the stock and start setting up the Bridgeport nearby to do the machining. I have a home workshop and am fed up with my small horizontal bandsaw as the blades keep breaking. I got to thinking about a metal chop saw and remembered the power hacksaw. The big downside I see with this type saw is that only a small portion of the blade does all the work. would be nice to modify the stroke length. That would require incorporating a shaper mechanism but now your really going down the rabbit hole with the cost of materials, machining and time.
Very nice, but why is the stroke so short?
because the driving gear is limited on diameter. Stroke is limited to twice the radius of the driving arm bearing center point.
helut kuno that's what she said!
helut kuno very easy to extend as long as the motor has enough power
So that he can put bigger pieces in there
TS Right, but why not make the stroke adjustable, so small and massive pieces don't take ages to cut
nice job you can make mini lathe or milling
if you lengthen the stroke on the saw, you will use more of the blade. great work as usual though.
I noticed that issue too. 2/3 of blade unused and most likely rails dont like that ether so much.
Nop
I use a Full Stroke😉😉😉
the diameter of the gear which the saw is on would have to be the same length as the saw blade itself in order to get a complete stroke. making this happen would require a new build because the body is not meant to house a gear that big.
Lucas Cole - A moveable vise, or vise jaw, would be a better solution. Then you could keep the short stroke but use more of the blade as it dulls, or he could just send me the partially used blades. LOL
Solid build, excellent work.
Might i suggest also a drip oiler for the blade
A larger drive wheel with a series of bolt holes from near the shaft to the outskirts of the wheel for stroke length, and a pivotal vice with angles ?
I am not envious of people with money. I'm envious of guys like this, who not only can envision something, they can actually make it.
*Make it Extreme, make it Awesome*
Sir, you are a man of skill and patience. A one person A Team.
Absolutely Badass!! You guys are 1/2 a million+ subs without saying a single word! Gotta be some kind of youtube record........having the best fab videos and best music!!! Do you have sponsors yet? you guys inspired me to buy two different welders, a plasma cutter, metal bandsaw, metal chop saw, and thousands of dollars worth of practice metals.....couldnt imagine the line up of sponsors drolling over your content and proven customer attention........Thanks Again for the incredible videos!!
Boy, are you an engineer? I do not think anyone else could do better. Congratulations!
Apart from the various comments on the stroke length, you should have built in a cam lift mechanism to relieve pressure on the blade during the return stroke. Regular power hacksaws have a hydraulic lift mechanism to achieve this. You will observe that the blade goes blunt very soon with this build where the pressure on the return stroke tends to blunt the saw teeth. A small 1-2 mm lift cam on the return stroke will serve the purpose and can be easily incorporated into the mechanism.
Need to add a "bump" at the end of each stroke to clear out the chippings in the blade. You can also scrounge broken band saw blades from shops and then make your own power hack saw blades.
changing the stroke is not easy without messing with the driving gear. Shortening the arm will not change stroke and it will only bring the saw closer to linear bearings center instead of the front section. You could push the vise fixed jaw closer to the engine and thus be able to cut wider section. Right now the back jaw is sitting at roughly center of the blade. If you rotate the driving gear to extend the arm and push the saw to its fwd limit you can easily find the limit point at which the rear jaw can be moved to. Just an added thought. The principlis really good. Enjoyed a lot, again
Make the back clamp jaw adjustable also so you can use the rest of the blade.. Good work!
Great work!
Some kind of spring on the crank to lift the sawblade while on reverse and push it down while cutting could be another nice feature.
think you need to make the pushrod adjustable in length so you can use another part of the blade if the first bit gets dull
I really like this quality build! There are comments saying that this is for small things, but that is not true. It is about 3 to 4 times faster than doing it by hand. Finally, the precision is much better than a bandsaw, especially thin cuts. I know these things because of 50 years experience. Or, I may just be feeble? Yes, a longer stroke would be desirable. A bandsaw is a very nice machine to have too! Thanks for posting! Jerry
Mate, you make the coolest shit on the tube!
KInda agree, colin furze makes awesome stuff too, check it out if u havent
What about adding a limit switch so it turns itself off when you bottom out the arm (rather than cutting into the workpiece support a little bit each time?) Cutting fluid dispenser might be a nice touch and a notice quite a few people have mentioned about the short stroke. As much as anything, lengthening the stroke will be a good way to regulate the blade temperature along with cutting fluid - your blades will last longer
Did you see the video?
06:20
And 8:20 you see the switch in action.
Very awesome. I would make the back stop adjustable so you could move the work to different parts of the blade, that way you could get more life out of the blade. That and lengthen the stroke a little.
Nice project.
You can also cut the blade in half and drill two new installation holes and build a new shorter hack saw.
Ideas that I think would be cool for you guys to do:
Extreme office chair (features: motorized raise/lower, recliner, leg rest, etc,)
Extreme combination safe
Extreme baby crib (if you or someone you know has a need for one)
Could be cool... could be super dumb... just throwing them out there.
Love the videos, keep up the great work!
Very good saw congratulate you. I know that many have opined but, mine is a suggestion, the ones I've seen bought, have a cam on the reducer that raises the saw when it advances so it does not touch and wear this way your saw will last twice, congratulations.
Great work as always. I think most power hacksaws I've seen have a cam that kicks the blade up on the return stroke. I suppose so that the teeth aren't being dragged backwards through the cut.
So glad i found your guys channel
Excelente trabajo. Como siempre. Mucha prolijidad. Pero habria que ver la manera de que se pueda hacer mas largo o gradual el movimiento de oscilacion de la sierra para aprovechar mas de la misma
Very nice, now make a flood coolant system for it!
What ever you make has a good result and a good purpose. Great tool! Once again, impressive!
A great addition would be a vise that swivels so angles can be cut.
It’s probably the high speed but everything they do looks flawless. Like the cuts welds etc... great job 👍🏻
I'm addicted to yalls videos. So awesome!
Bien desarrollada, felicidades.
Nice work. I think this is the only project you've done that I didn't think you'd fully thought it through.
I think having the permanent jaw of the vice back further towards the motor, you'd have the option of utilising more of the blade. The stroke is irrelevant, but it helps to shift the work to get the most out of the teeth.
My two cents.
If you made the clamp/vice moveable, you could use new sections of the blade when those two inches get dull.
Cool machine, i only know it from production handbooks. Seems like a small lightweight machine able to cut big stock.
Το πριόνι πρέπει να έρθει λίγο πιο μπροστά και να βάλετε μια "μπιέλα" πιο μεγάλη για να κάνει μεγαλύτερη διαδρομή. Έτσι όπως είναι τώρα μένει ανεκμετάλλευτο μεγάλο εύρος. Κατά τα άλλα, εξαιρετική ιδέα και ακόμα πιο εξαιρετική υλοποίηση! Μπράβο παιδιά!
*Look at 9.30:* instead of using a *fixed* piece of angle iron to use as a vise jaw, or stop [the one on the right], remove that and modify the bed which it rests on. Add a slot so that it can be slid left/right so the piece being cut can be positioned under portions of the blade which have not been used. I believe that it would be easier that changing the stroke length of the blade. *Just a thought.*
Ωραία δουλίτσα όπως πάντα! Κάτι ήθελα να γράψω για τη διαδρομή της λάμας κοπής όμως βλέπω ότι με προλάβανε! Και πάλι μπράβο..!
Another great job from Make It....continuous like this....it's all great.
Another excellent invention, well done sirs.
This machine is already invented. They merely made their own version of an automatic saw. Lol
One thing this lacks and desperately needs is a lift mechanism on the return stroke so as not to prematurely dull the blade.
Also as others have mentioned an adjustable stroke length is a good addition as well as some method of moving the fixed vice jaw for more blade length usage. Still on the fixed jaw, some gussets behind for strength will be a good thing also.
The speed adjustment is a good thing for cutting tougher and harder materials.
John, Australia.
A decent channel with decent work for a decent Laika
Very nice idea!
very good job ..need one small pump water to freshen up the saw.. and is the perfect.
I love how you need a bandsaw to make this
I would love to see you make a Milling Machine! That is one thing I have always wanted to do myself but I just don't have the skills yet. lol
Nice!
But lengthen the stroke and move the clamp so you can use the whole blade.
Then add a coolant system and you are home.
Very very good!! 👍👍👍
Hi bro it's very nice and looking easy to understand and making for me I am waiting for next video post I thank for this power hacksaw. Please show home made slotting machine
Please consider in your projects a portable Vise like "Urrea BT900" Will be a great tool, very helpful and useful. I am from Mexico
Καλά εντάξει Άντε Υεια! Ολη την ώρα σκέφτομαι, τι άλλο θα φτιάξουν, και κάθε φορά βγαίνει ένα τούμπανο εργαλείο που δεν μπορώ να το πιστέψω! Μάγκες το εργαλείο καράτσιλίγο! Δεν έχω λόγια, Μπράβο ρε παιδιά!
Hey guys, if you have any use for it... can you make a bigger wood chipper? like for logs... thanks ..
Nice build. May i suggest the rear part of the vise to be moved back a bit. Right now you are not able to use the rear half of the blade.
Question, does it raise up on the back stroke? If not, you should probably make something to do that so you save your blade from getting dull.
very good job as always
To make the blade last and produce less heat due to the friction the blade should be up a little bit when in a backward motion.
Hello! Could you tell me more about the cut disc used?
Fantasic job curious where the gear box and the motor came from or perhaps I should say what is it off of? Keep the videos coming!!
it's great i love it
nice job!
-Could you soon make a parts tumbler, for deburring and rounding edges of smaller parts? I'm looking for inspiration..
If you open up your die nut all the way on the first pass, you'll get a better finish on your threads. Great video as always though. :)
One thing I see is that it is lacking the cam that commercial units have to lift the blade away from the material on the back stroke to extend blade life. Of course the way you have it working you can flip the blade end for end when the portion being used wears out.
That's a really great project.
Good job guys
It is advisable to lift the blade in return/not cutting stroke to increase blade life.
Very very very good job !!!!!!
That is cool, sorry if it sounds dumb, but does it ever get hot enough that you might need some coolant for cutting?
From the scratches on the saw blade, and in order to utilize nearly the full length of the blade, you need a gear 3 times bigger than the current large gear.
Nice work. Good job!
Very nice project 😉👍
Thank you ... good job
great job 👌👀
Cool stuff mate, congrats! Your blade always uses the same 10 cm though... I will become dull pretty quick.
Thanks for the video!
Awesome job ! - Fantastic machine ! - The only thing that lets it down is that geared motor is way too slow ....You need a similar worm motor/gearbox with a faster output speed then it will be 100% perfect ! - Great video and workmanship man :-)
Thank you Great Video.super project
how often do you need to replace the blade in your circular chop saw
Congrats, very nice
The short stroke of the blade is desirable for larger pieces, but with this design large pieces wouldn't fit in the vice without hitting the front sawblade holder :/
I think an adjustable arm for the stroke and some sort of adjustable clamping system would be the best way to maximise what you can cut as well as the life of the blade, but this is what this channel is about - cool functional items that people can draw inspiration from :)
Keep it up guys, I'd love to see a homemade metal lathe next.. It would be quite the challenge getting it precise and rigid enough.. IIRC, back in WW2 some factories made the frames of large lathes out of concrete instead of expensive cast iron, perhaps you could use a similar construction method.
adjustable arm would only change blade placement not stroke, which would still be useful though in this case. To change stroke he'd need to modify the crankshaft/crank gear thing.
I was thinking one way would be to use a nema34 cnc stepper motor and lead screw for the motion. Then you could adjust the stroke length and the design might be more compact.
i think you should make an angle in the object holder.if i need to cut by angle 30 or 45
Very nice work. Thank you
Awesome build!
buena idea pero se podría poner una mesa para hacer cortes en diferentes grados de ángulo como el de 45°
Just needs a couple roller bearings where the blade bottoms out. Keep the saw from cutting itself to bits. Good work, as usual.
For version 2... Jackshaft and some changeable drive wheels for various stroke lengths.
nice build but I think I would prefer a band saw. but love to watch your builds
I'd suggest move the blade or where it holds the object it's made to hold something bigger but can't because on the back stroke it would hit the blade arm and at full stroke half the blade with never be touched
only particular side of the sawband that will worn out over time, and you should recalibrate your off switch position so that will not cut small amount of your base plate after material completely cutted
Great work guys! But as the viewers said, the stroke of the saw is short..
For everyone saying the stroke needs to be longer, this way you can cut larger diameter stock
Молодец мужик приятно смотреть его видео руки откуда надо растут
Nice job!
What are your thoughts on having an adjustable hard stops to use different areas of the blade to make more use of the blade as it wears?
Totally enjoy the tools you make , and the color is also a favorite of mine. The big bench vise is a wow wish I could get out n build one too. Yours looks very sturdy
Хороший станок, я сейчас подобный делаю. Единственный косяк автора, я считаю, то что пилка использует только треть зубьев. Она должна использовать всю длинну полотна, так пилит эффективнее и меньше износ зубьев...
I love all videos of this chanel
A very good option for repeating.
Nice work man how straught is a cut ?
What bearings did you use for the sliding mechanism?