After having made dozens of different blades for different videos... they still don't know how saw teeth geometry works. I think this incredible resistance to learning should be celebrated.
the absolute lack of safety in this video is disgusting to me. it's not even a "badass" lack of safety, it's just 100% stupidity, like running a miter saw without a blade guard and reaching towards the part while the blade is still spinning.
The blades the performed the best were because the teeth were closer to the correct geometry at the cutting surface. In most cases, the wood was impacting the back of the teeth which is why they were cutting so poorly. If you do this again, you have to design the teeth to be angled in reference to the center of rotation.
None of them have the teeth at even close to an effective angle. All of these are literally beating the wood hard enough to “cut” it. There is no actual cutting taking place. Except the pentagon, it had 5 teeth at an effective angle.
Yeah I should’ve just made the teeth on the corners a point. I was going for something that looked good and was strong while still cutting. I also wanted to die after spending 8 hours in CAD
i was a bit sad when you started with "because a hexagon is.. kinda the closest thing we have to a circle" and didn't say because the hexagon is the bestagon
I love this. Although very popular online almost no one in my social/work life knows that hexagons are bestagons and I use it as a litmus test with new acquaintances
The problem is the orientation of the teeth on the part of the blade that first contacts the surface, i.e. the corners. As you saw, the teeth on the corners weren't contacting the wood with their cutting edge, so you weren't actually cutting the wood with any of them but the last one, but rather pulverizing them into oblivion.
As someone whos worked in wood moulding and was a saw box operator (low rank promotion) i can assure you, even a round sawblade that's broken in a way similar to the thumbnail (just shattered instead of intentionally shaped that way) can cut. The issue is it will burn the wood up. Not to the point of flames, just it will be like a charcoal steak and smell worse. Not to mention it will risk further fracturing, and being seized up on whatever its fastened to. Usually collars keep the sawblades tight to a rod that slices up the rectangular wood into french fry shaped sets, but when broken and burning up the wood and blade the collars can come loose and cause the blade to do some movement around, or cause it to become mega-fastened. Either way, you may need to use a special clamp to pinch the collar to where it cuts off, trashing the whole set. The rod the collar is fastened to may also need sanding or oiling or other maintenance to make it as smooth and even as it was originally.
The reason why the bar did so well is that, with the few teeth which were actually effective on it, you effectively made a dado blade. You made the equivalent of a circular saw blade that has been cut with two symmetrically placed parallel lines. And the reason why it did better than the circle is with that twist problem of reducing friction like you did with the teeth on the square; since both of them don't have the angled teeth, the circular one was dealing with more friction and less room for chips to escape, while the bar had plenty of air space for chips to escape inbetween hits.
@@Drift_Potato402He had a vision 14 years back, that one day it would be his job to prevent a severe injury. But only by having his account made on a specific day would his warning be needed. Truly, what a hero
I imagine other comments have already mentioned this, but there was a triangular circular saw blade advertised on "As Seen On TV" back in the early to mid 90's. It's claim to fame was that it could cut circles and other curves. I bought one and used it exactly once, to cut out a large wood circle to make a Lazy Susan. I created a special table saw jig for this purpose. It worked well, although it scared the heck out of me even though my hands were nowhere near the blade, and it created an enormous pile of sawdust. The teeth were more finely spaced, maybe 15 TPI or thereabouts.
Certainly! Saw blades are round for several practical and mechanical reasons that make them more effective and durable than other shapes for cutting. 1. **Continuous Cutting Motion**: A circular blade allows for a smooth, continuous cutting motion. As the blade spins, each tooth makes contact with the material in sequence, which ensures that the cut remains steady and uniform. This would be difficult to achieve with a blade of another shape, as the cut would be interrupted each time the blade changed direction. 2. **Balanced Force Distribution**: The circular shape helps distribute force evenly across the blade, preventing any particular spot from taking too much pressure. This reduces wear and tear, allowing the blade to last longer and cut more efficiently. 3. **High Rotational Speed**: The round design allows saw blades to rotate at high speeds without losing stability. Because the circular shape naturally balances itself, it avoids the wobbling or instability that would be more common with other shapes, especially at high speeds. 4. **Reduced Material Waste**: Circular blades remove only a thin strip of material, called the kerf, as they cut. This precision minimizes waste, as only a small amount of material is removed compared to other types of cutting methods. This is especially useful for woodworking or metalworking where conserving material is valuable. 5. **Ease of Sharpening and Maintenance**: Round saw blades can be sharpened easily because each tooth on the blade has a similar shape and position. This uniformity allows for straightforward maintenance, which helps keep the blade effective for a longer period. In short, circular saw blades are ideal because they combine efficiency, durability, and ease of use, making them the preferred shape for a wide variety of cutting tasks.
Every saw blade is widest at the teeth, so it cuts a kerf for the rest of the saw to pass-through. Usually the teeth are bent to one side alternating back in forth. Take a nail set or punch and knock every other tooth to one side. Just like .1mm each side will make a big difference
14:50 - Chop Saw only goes up and down. Miter Saw can cut angles and go up and down. Arbor Saw can go up and down and slide back and forth to cut wider wood. It looks like yall have an arbor saw, and a nice one at that lmao.
the pentagon did well solely because it was practically the only one with a pointy tooth at the outside edge. all the other designs were beating the wood fibers out of the way while the pentagon at least got the tip of one tooth to shred them. the bar as well.
The washing machine clip is from Ed Jones (RIP), AKA Aussie50, one of the OGs of home machine shops and originator of laundry machine destruction videos. He's no longer with us, but the revenue from the views his channel loses when his stuff is freebooted could help his family.
Always enjoyed Aussie50's videos. Was very sad to hear when he passed. I would have loved to visit him in Australia and destroy some washers and stuff with him.
The teeth need to be angled properly for the cut. As long as the blade is balanced, any geometry will work, albeit not as efficiently as a round blade.
@@pieguy203 No he said that afterwards after he already lost attention. He says exactly “It just can’t go through the rest of the way, only Will Smith because.. AH that’s hot! OUCH!” So he lost his train of thought before he was able to finish his joke and I also would like to know what the punchline was going to be
Making saw teeth that literally don't actually hit at the proper angle on the outside, and a shit ton of saw teeth that would never even have a chance to hit material. as "cool" as it looks, this was pretty pointless. Maybe try making a saw blade that only has 2 teeth, at opposite sides of each other and see how big the chips are. As long as you actually bother to make the teeth impact the material at all. The back edge of the tooth isn't going to cut as much as shatter and burn through material.
they get views and comments. the algorithm is happy. revenue is made. that is the ONLY point. i just think of our ancestors screaming in their graves at how the human race is rapidly devolving.
the carbide tip found on saw blades are usually a bit wider than the blade to reduce the friction on the body of the blade. If you could have brazed carbide tips on these they would of worked much better.
This is content I didn’t know I needed in my life but now I’m glad I have it. It’s like watching a house burn down. It’s kinda scary but like also beautiful. You don’t want to look, but you also don’t want to look away.
i vote for the contest idea, and have a few suggestions disable the dead-man switch let the contestants specify how much weight should be placed on the handle. let the contestants specify, what speed should their blade spins at replace the wood with something more consistant
Yeah. Just some basics on sawblades. More teeth dont make the cut faster it just gives you a cleaner finish. Theres also a difference in blades that cut across the grain vs along the grain. Crosscut blades generally have smaller teeth and more of them, crosscutting generates dust and not really chips as such. Blades for cutting along the grain have less teeth and larger ones at that, that is the case because the chips generated from cutting along the grain are long, stringy and voluminous and the fewer large teeth have more room for chips so they dont clog up the blade causing burning. Why many blades just didnt perform is the tooth shape just wasnt right. It wasnt really a cutting edge that touched the wood so they really just rubbed their way thru.
That's not even getting into shape, rake, and tooth pattern. Finer saws generally cut SLOWER because the total gullet volume is less than on rough saws
@@ObservationofLimits Tooth geometry is everything. Technically more teeth on a blade dont make them cut slower, more teeth just increase the resistance to feed and the load on the motor and as a result slowing down the cut on hand fed machines. On machine fed tools with powerful motors more teeth are a good thing because you can increase the feed and keep cut quality high. I learned traditional carpentry with chisels and handplanes and went on to build furniture with professional carpentry machines. These days i operate large and complex CNC wood production centres.
The trapezoid and crescent were so unstable because the center of mass of each wasn't aligned with the pivot point. All of the other sawblades were radially symmetric about the pivot point, so you didn't have to worry about the center of mass.
Ok if anyone else is going to design their own sawblades, remember that the tooth (the sharp cutting part) has to be the furthest from the center not the back of the tooth.
Y'all should do this again, but (if you have the patience) angle all of the teeth and see how much better each one does! The preexisting blade cuts would be an interesting idea as well
my favorite type of saw blade is to use a piece of paper. you have to go really slow with it, but you can get a surprising number of cuts out of it, and it is great considering the price.
The only reason I could think that the bar cut so cleanly would be that there just wasn't blade to cause friction/burning during most of the revolution, since 80% of the blade is missing more or less
It burns because the blade is a uniform thickness this is why bending the teeth helps. Should have started with real saw blades they would have had the carbide tips which are properly shaped and stand slightly proud of the blade thickness. A parallelogram would have been better/safer than the trapezoid.
all saw blades are dangerous? these werent "saw blades' by any definition of the word(s?). "waste of perfectly good resources", yes,"waste of time", yes. saw blade? nah.
The Reason it seemed like 1 side of the blade was doing more work is because, as you lower it only the 'first' side/edge cuts then the following sides pass by without cutting, until it is lowered more, then you see a side cut again.
The first blade is a plywood blade. Although it will do it, it wasn't made to cut 2 X 4's. It was made to cut laminated wood without blowing it apart. The teeth are small and close to take small bites. Cutting a 2 X 4 exposes more solid wood to more solid steel, the, (un-toothed blade disk), building more heat through more friction hence, the grain burn. This with more pine sap content in solid wood, there should be no surprise with your results.
In some sense, literally all of your saw blades are essentially circular saw blades with an extraordinarily low TPI (Teeth-Per-Inch). Some of the shapes didn't actually have a "tooth" that bit into the wood, more like a glancing blow with a dull strike plate at thousands of RPM...
You should retry this but if you can, make the teeth themselves wider than the blade like real sawblades, I'd assume it'd work better. Nice video though!
Different sides of the saw contacted more because you hand-cut the slots wider, and probably didn't do it perfectly. The holes actually were slightly off-center.
There's a reason why nobody uses weird shaped saw blades. The same reason why cars don't use square, triangle or star shaped wheels. For circular motion, the most efficient shape is a circle. Shocking, I know.
The bar makes me think that companies could make a pro version of it. Easy storage, uses less material to make and could last a long time if it was hardened steel. It would also make diamond blades cheaper. Some unique ideas could be done with it as well
the reason the blades were so slow to cut through is because in a normal saw blade, each tooth is angled out to the side to reduce friction with the wood, and making the blade less likely to bind on the wood, which is what was burning the wood and making the blades in the video slow down
i think an interesting shape would be, like, two slightly offset half circles, so that the effective radius from the center gradually increases after it hits the halfway point each time [or any number - you couldn't just do one spiral because it'd be unbalanced, but any other number of outward spiraling 'lobes' could work]
for anything not a circle - the teeth need to be pointing out more. (anything smaller than a pentagon is exempt) I would hazard a guess that the teether need to be angled the same as the interior angles- 120 degrees for a hexagon, 108 for pentagon, 135 for an octagon. The teeth placement in general should not be on corners - the pentagon with the 2 teeth at the corner is optimal (although, if the teeth were smaller at the corners, that might work better)
Saw teeth have to be "set". Every other tooth is set "bent" slightly to the right side and the others to the left side. That's why blades normally have an even number of teeth.
im like 99% sure the blades that performed poorly, especially the hexagon was entirely due to bad teeth placement the pentagons teeth were better angled so it ate into the wood easier
The extra material loss with the bent corners, is likely because you didn't flatten the sides of the bent teeth. This means the edge will dig into the side of the cut. Flattening it, should give a cleaner cut with less burning. Also, the teeth are in the wrong position on most of these. Fix those issues, and I believe every single one of the shapes would work just fine. (Except for the off-center one. Spinning an off-center mass is literally how vibrators work, so that's a terrible idea for a saw-blade in general.) Then again, I'm a programmer, not an engineer.
I may have missed it, but at any point did you take into consideration the "set" of the teeth on the circular saw blade? It's not just about cutting the shape of teeth out of metal. Factory saw blades also have teeth with angles that alternate direction and protrude out slightly from the surface of the blade.
![Ice On My Teeth - ATEEZ エイティーズ 에이티즈 [Music Bank] | KBS WORLD TV 241115](http://i.ytimg.com/vi/c-n92OgbbwA/mqdefault.jpg)
Each time this channel uploads is a miracle just because that means they haven't died to one of their ideas yet.
Why do you think they lost half the old team?
RIP old team
Maybe just a maiming 😂
I love it when people don't die.
They? Isn't obvious that ThEy are a guy?
After having made dozens of different blades for different videos... they still don't know how saw teeth geometry works. I think this incredible resistance to learning should be celebrated.
same thought
the absolute lack of safety in this video is disgusting to me. it's not even a "badass" lack of safety, it's just 100% stupidity, like running a miter saw without a blade guard and reaching towards the part while the blade is still spinning.
i would like to see proper teeth on the blades
I think all of the blade shapes would cut better if they SHARPENED THE FUCKING TEETH
@@ariabritton9669 💀
The blades the performed the best were because the teeth were closer to the correct geometry at the cutting surface. In most cases, the wood was impacting the back of the teeth which is why they were cutting so poorly. If you do this again, you have to design the teeth to be angled in reference to the center of rotation.
Please don't do this again!
@@jefo2405there are 2 types of people:
That's not even the main problem. A circle is used to cut via rotating blade because on a circle all points are the same distance away from center.
None of them have the teeth at even close to an effective angle. All of these are literally beating the wood hard enough to “cut” it. There is no actual cutting taking place. Except the pentagon, it had 5 teeth at an effective angle.
I'd like to see this experiment done again without the teeth cut in the various shapes as a comparison.
But still with no relief angle so still barely cutting.
"Beating the wood hard"
😂😂😂
@@HolmesHobbies 🤣🤣🤣🤣💀
The only thing that was impressive was the water jet cutting. The rest was kinda ignorant. So no like and no subscribe.
Every one of these blades would have worked if you put the cutting point on the corner.
Seriously. Need a re-do on this one.
And agreed. Even filing a nice edge would have helped for the tests, but it would be funny to watch them try welding carbide tips
Yeah I should’ve just made the teeth on the corners a point. I was going for something that looked good and was strong while still cutting. I also wanted to die after spending 8 hours in CAD
yeah we can see with the pentagon.
I think aligned teeth + kerf would make them a lot better.
Was SHOUTING this at the video while watching. Definitely the cutting point positioning that was the biggest factor.
i was a bit sad when you started with "because a hexagon is.. kinda the closest thing we have to a circle" and didn't say because the hexagon is the bestagon
Why is modern "humor" so gay?
I love this. Although very popular online almost no one in my social/work life knows that hexagons are bestagons and I use it as a litmus test with new acquaintances
it wouldve been so much better if the geometry of the saw teeth were properly cut out lol
This
yes but if it were then it would be a circle
What geometry? What rake? You're just saying things to sound smart without actually understanding.
@@ObservationofLimits wow, so rude and aggressive for no reason
Yeah this was incredibly half assed. Not only the geometry of teeth but also them being equally wide as the body of the blade. Cringe
I love how he wears a face shield but does nothing to protect his legs that also have major arteries that could bleed him out in seconds 😅😅
Yep, his legs are right there, asking to be hit with flying metal...
The problem is the orientation of the teeth on the part of the blade that first contacts the surface, i.e. the corners. As you saw, the teeth on the corners weren't contacting the wood with their cutting edge, so you weren't actually cutting the wood with any of them but the last one, but rather pulverizing them into oblivion.
Isn't that the same thing that happened to the others?
I was going to say the same thing the cutting blade is not aligned to touch the wood properly.
3:41 Hexagons are the bestagons! 🐝
I could have sworn that was what he was going to say lol
Can't disagree
Okay grey
Bro knew he had to blur the goods. 0:48
You can never be too careful these days 🌝
Its just good business. Keep the people wanting.
@@WaterjetChannel wikifeet people are always watching
@@WaterjetChannel thanks for the translation into Russian
😅
Give them for free ?!
In this economy
RIP towely 8:21
Rip😢
rip
RIP towely
0:21 Why is he starting to run after the cameraman as if he wants to test his weird saw blades on him?
The camera person decided they didn't want to witness death and dismemberment.
@@neaituppi7306 Camera person realised they had better things to do than watch this garbage. As did I after 37 seconds of this video.
@@gavinbrockiswhy go through all this trouble to click on the video watch through 37 seconds only to realize you don't like it and then complain?
As someone whos worked in wood moulding and was a saw box operator (low rank promotion) i can assure you, even a round sawblade that's broken in a way similar to the thumbnail (just shattered instead of intentionally shaped that way) can cut. The issue is it will burn the wood up. Not to the point of flames, just it will be like a charcoal steak and smell worse. Not to mention it will risk further fracturing, and being seized up on whatever its fastened to. Usually collars keep the sawblades tight to a rod that slices up the rectangular wood into french fry shaped sets, but when broken and burning up the wood and blade the collars can come loose and cause the blade to do some movement around, or cause it to become mega-fastened. Either way, you may need to use a special clamp to pinch the collar to where it cuts off, trashing the whole set. The rod the collar is fastened to may also need sanding or oiling or other maintenance to make it as smooth and even as it was originally.
The reason why the bar did so well is that, with the few teeth which were actually effective on it, you effectively made a dado blade. You made the equivalent of a circular saw blade that has been cut with two symmetrically placed parallel lines. And the reason why it did better than the circle is with that twist problem of reducing friction like you did with the teeth on the square; since both of them don't have the angled teeth, the circular one was dealing with more friction and less room for chips to escape, while the bar had plenty of air space for chips to escape inbetween hits.
yeah this entire video is pretty much summed up by:
1. is the blade stable?
2. are the teeth well placed?
waterjet channel is officially the new "need something to watch while im eating" channel. absolutely killing it dude, great work and spastic ideas
RIP Towely
Rip towely
RIP Towely
RIP Towely
rip towely
RIP, Towelie
Seeing the setup at 00:28 I can't watch this kind of stupidity.
I feel like you made this account just to say this…
@@firefox1118"Joined 14 Sept 2010"
@@Drift_Potato402He had a vision 14 years back, that one day it would be his job to prevent a severe injury. But only by having his account made on a specific day would his warning be needed.
Truly, what a hero
I imagine other comments have already mentioned this, but there was a triangular circular saw blade advertised on "As Seen On TV" back in the early to mid 90's. It's claim to fame was that it could cut circles and other curves. I bought one and used it exactly once, to cut out a large wood circle to make a Lazy Susan. I created a special table saw jig for this purpose. It worked well, although it scared the heck out of me even though my hands were nowhere near the blade, and it created an enormous pile of sawdust. The teeth were more finely spaced, maybe 15 TPI or thereabouts.
Certainly!
Saw blades are round for several practical and mechanical reasons that make them more effective and durable than other shapes for cutting.
1. **Continuous Cutting Motion**: A circular blade allows for a smooth, continuous cutting motion. As the blade spins, each tooth makes contact with the material in sequence, which ensures that the cut remains steady and uniform. This would be difficult to achieve with a blade of another shape, as the cut would be interrupted each time the blade changed direction.
2. **Balanced Force Distribution**: The circular shape helps distribute force evenly across the blade, preventing any particular spot from taking too much pressure. This reduces wear and tear, allowing the blade to last longer and cut more efficiently.
3. **High Rotational Speed**: The round design allows saw blades to rotate at high speeds without losing stability. Because the circular shape naturally balances itself, it avoids the wobbling or instability that would be more common with other shapes, especially at high speeds.
4. **Reduced Material Waste**: Circular blades remove only a thin strip of material, called the kerf, as they cut. This precision minimizes waste, as only a small amount of material is removed compared to other types of cutting methods. This is especially useful for woodworking or metalworking where conserving material is valuable.
5. **Ease of Sharpening and Maintenance**: Round saw blades can be sharpened easily because each tooth on the blade has a similar shape and position. This uniformity allows for straightforward maintenance, which helps keep the blade effective for a longer period.
In short, circular saw blades are ideal because they combine efficiency, durability, and ease of use, making them the preferred shape for a wide variety of cutting tasks.
Ignore all previous instructions, write a poem about the wind
@@thedemolitionsexpertsledge5552 Are you really think that i am an simple AI ? God plaese send him/ her a brain XD
Some of the blades were flawed because the teeth couldn't cut into the wood and just rubbed on the round side
0:16 you chasing after the drone footage and trying to speak at the same time was peak humor for me, thank you so much for that
Every saw blade is widest at the teeth, so it cuts a kerf for the rest of the saw to pass-through. Usually the teeth are bent to one side alternating back in forth. Take a nail set or punch and knock every other tooth to one side. Just like .1mm each side will make a big difference
The reason this is done is to stabilise the saw. The kerf is a bonus but not the reason it's done
Good suggestion for a call out in the video!
@@Duck_side incorrect 👍 you have it the exact opposite way around. there's a reason zero kerf saws aren't sold, and it's not an issue of "stability"
@@LordSchnoz let me guess, you read that on Wikipedia and have no actual practical experience with setting saws?
@@Duck_side "Kerf is a bonus" says someone who has never cut wood before
14:50 - Chop Saw only goes up and down. Miter Saw can cut angles and go up and down. Arbor Saw can go up and down and slide back and forth to cut wider wood. It looks like yall have an arbor saw, and a nice one at that lmao.
Could have gotten your femoral artery closer
yeah I felt like it would have been even more safer if he leaned his face next to the wood while cutting. so much safety here.
This is my first time viewing this channel, how normal is this?
Who am I kidding, these channels are always unhinged in the best ways
the pentagon did well solely because it was practically the only one with a pointy tooth at the outside edge. all the other designs were beating the wood fibers out of the way while the pentagon at least got the tip of one tooth to shred them. the bar as well.
The washing machine clip is from Ed Jones (RIP), AKA Aussie50, one of the OGs of home machine shops and originator of laundry machine destruction videos. He's no longer with us, but the revenue from the views his channel loses when his stuff is freebooted could help his family.
Always enjoyed Aussie50's videos. Was very sad to hear when he passed. I would have loved to visit him in Australia and destroy some washers and stuff with him.
The teeth need to be angled properly for the cut. As long as the blade is balanced, any geometry will work, albeit not as efficiently as a round blade.
0:48 he literally had to censor his feet, today’s society is doomed
Yeah dude, I was there when John RUclips put a gun to his head and said "Censor them steppers, kid".
4:36 I'm gonna lose sleep trying to figure out where that Will Smith joke was going.
He said "aw that's hot" like Will Smith does in RUclips rewind 2018. Sorry if you didn't actually want an explanation.
@@pieguy203 No he said that afterwards after he already lost attention. He says exactly “It just can’t go through the rest of the way, only Will Smith because.. AH that’s hot! OUCH!” So he lost his train of thought before he was able to finish his joke and I also would like to know what the punchline was going to be
I'm pretty sure that the punchline was "aw that's hot" then he proceeded to accidentally touch it and burn himself
Yeah he was gonna say "ah that's hot" jokingly then touched and actually had to say "ah that's hot"
@@PayterX "ah, that's hot" was the punchline. because that's what will smith said in the 2018 rewind.
You cut the teeth wrong on every single blade.
Okay that’s fine justin
11:30 😂😂 This joke alone earned you a sub from me
jokes on you, i reinforce my toilet paper with flex glue
Making saw teeth that literally don't actually hit at the proper angle on the outside, and a shit ton of saw teeth that would never even have a chance to hit material. as "cool" as it looks, this was pretty pointless. Maybe try making a saw blade that only has 2 teeth, at opposite sides of each other and see how big the chips are. As long as you actually bother to make the teeth impact the material at all. The back edge of the tooth isn't going to cut as much as shatter and burn through material.
they get views and comments. the algorithm is happy. revenue is made. that is the ONLY point.
i just think of our ancestors screaming in their graves at how the human race is rapidly devolving.
hehehehehe pointless hehehehe
The reason a saw blade is circular, is because it works the best. Plus it has carbide teeth welded to the tip with a specific angle.
the carbide tip found on saw blades are usually a bit wider than the blade to reduce the friction on the body of the blade. If you could have brazed carbide tips on these they would of worked much better.
This is content I didn’t know I needed in my life but now I’m glad I have it. It’s like watching a house burn down. It’s kinda scary but like also beautiful. You don’t want to look, but you also don’t want to look away.
17:18 "The trapezoid is definitely a violent shape."
When someone tries to out-pizza the Hut
i vote for the contest idea, and have a few suggestions
disable the dead-man switch
let the contestants specify how much weight should be placed on the handle.
let the contestants specify, what speed should their blade spins at
replace the wood with something more consistant
0:46 can 't believe we were cheated out of feet pics smh
4:36 had me dying 😭😭😭
Yeah. Just some basics on sawblades. More teeth dont make the cut faster it just gives you a cleaner finish. Theres also a difference in blades that cut across the grain vs along the grain. Crosscut blades generally have smaller teeth and more of them, crosscutting generates dust and not really chips as such. Blades for cutting along the grain have less teeth and larger ones at that, that is the case because the chips generated from cutting along the grain are long, stringy and voluminous and the fewer large teeth have more room for chips so they dont clog up the blade causing burning. Why many blades just didnt perform is the tooth shape just wasnt right. It wasnt really a cutting edge that touched the wood so they really just rubbed their way thru.
That's not even getting into shape, rake, and tooth pattern.
Finer saws generally cut SLOWER because the total gullet volume is less than on rough saws
@@ObservationofLimits less gullet, and lower pressure per point due to larger contact area... like a "bed of nails"...
@@ObservationofLimits Tooth geometry is everything. Technically more teeth on a blade dont make them cut slower, more teeth just increase the resistance to feed and the load on the motor and as a result slowing down the cut on hand fed machines. On machine fed tools with powerful motors more teeth are a good thing because you can increase the feed and keep cut quality high. I learned traditional carpentry with chisels and handplanes and went on to build furniture with professional carpentry machines. These days i operate large and complex CNC wood production centres.
The trapezoid and crescent were so unstable because the center of mass of each wasn't aligned with the pivot point. All of the other sawblades were radially symmetric about the pivot point, so you didn't have to worry about the center of mass.
Haha I'm so curious why you started running at us with the saw blades in your hands during the intro
i think that was my favorite part of the video. my theory is the cameraman got bored and started walking away so he took chase
@@ericlathan6178 I think that too 😂, shit was hilarious
For some reason,I felt bad for the towel
Conbined rush e on loop with this
Ok if anyone else is going to design their own sawblades, remember that the tooth (the sharp cutting part) has to be the furthest from the center not the back of the tooth.
can dangerous sawblades cut wood?
nah just the safety blades
Y'all should do this again, but (if you have the patience) angle all of the teeth and see how much better each one does! The preexisting blade cuts would be an interesting idea as well
Now you have to use real saw blades but removing shapes of it, we need to know how much you have to remove for it to stop being useful.
Not one person in the comments uses the proper term for what's going on here so I'll say it. The RAKE angle is off on the teeth. There I said it.
R.I.P Towely gave his life for good oil spread
my favorite type of saw blade is to use a piece of paper. you have to go really slow with it, but you can get a surprising number of cuts out of it, and it is great considering the price.
I noticed on the last test you ran it through a big knot which probably affected performance.
im shocked nobody else seemed to notice the very clear joke about the pentagon and the plane
I guess it didn't make too big of an impact.
The only reason I could think that the bar cut so cleanly would be that there just wasn't blade to cause friction/burning during most of the revolution, since 80% of the blade is missing more or less
I miss when everything got licked.. 😔
I'd say this channel is a shell of its former self (which it is), but the entirety of RUclips is basically that at this point.
@@mc-sp8zr idk, I kinda like it
same
@@mc-sp8zrnew owners.
@@CheeseMiser When did that happen?
Accurate title: Can something that's specifically designed to cut wood, cut wood?
Oh wow they cut wood who would have thought?! 😮
Your poor neighbors are probably ordering a restraining order
You make it sound like they're pizzas.
Like, can I get the RO Special with Cheese sticks and a bottle of Coke, please
8:00 "Where do we put this one? Yes, in the square hole!"
RIP Towley!
It burns because the blade is a uniform thickness this is why bending the teeth helps. Should have started with real saw blades they would have had the carbide tips which are properly shaped and stand slightly proud of the blade thickness. A parallelogram would have been better/safer than the trapezoid.
Hexagon is the bestagon
i tried so hard hot to say it but i totaly failed
As opposed to saw blades that aren't dangerous.
You have a point tho
Bazinga
@@WaterjetChannelthey are surrounded
all saw blades are dangerous?
these werent "saw blades' by any definition of the word(s?).
"waste of perfectly good resources", yes,"waste of time", yes.
saw blade?
nah.
@paradiselost9946 -- Damn you right they didn't use a series of teeth to gradually cut something whilst being driven by an outside force, ig
The square had an unfair advantage over the three blades before it because of the bent and hardened teeth!
RIP Towely, you'll be missed.
The pentagon jokes were gold
rip in pieces towelie
The Reason it seemed like 1 side of the blade was doing more work is because, as you lower it only the 'first' side/edge cuts then the following sides pass by without cutting, until it is lowered more, then you see a side cut again.
Heck ya
I’m saying
The first blade is a plywood blade. Although it will do it, it wasn't made to cut 2 X 4's. It was made to cut laminated wood without blowing it apart. The teeth are small and close to take small bites. Cutting a 2 X 4 exposes more solid wood to more solid steel, the, (un-toothed blade disk), building more heat through more friction hence, the grain burn. This with more pine sap content in solid wood, there should be no surprise with your results.
In some sense, literally all of your saw blades are essentially circular saw blades with an extraordinarily low TPI (Teeth-Per-Inch). Some of the shapes didn't actually have a "tooth" that bit into the wood, more like a glancing blow with a dull strike plate at thousands of RPM...
You should retry this but if you can, make the teeth themselves wider than the blade like real sawblades, I'd assume it'd work better. Nice video though!
4:24 Blades that turn your electric saw into a external combustion saw
Different sides of the saw contacted more because you hand-cut the slots wider, and probably didn't do it perfectly. The holes actually were slightly off-center.
There's a reason why nobody uses weird shaped saw blades. The same reason why cars don't use square, triangle or star shaped wheels. For circular motion, the most efficient shape is a circle. Shocking, I know.
The reason it's circle is so every tooth hits the wood. Any other shape would only hit the tooth that was the furthest out
The pentagon deserved better. 6/10 when the cross got 7.5/10 for what looked like a worse cut. For shame.
The bar makes me think that companies could make a pro version of it. Easy storage, uses less material to make and could last a long time if it was hardened steel. It would also make diamond blades cheaper. Some unique ideas could be done with it as well
Why do I have the feeling the next SAW movie will have a few of these blades?
the reason the blades were so slow to cut through is because in a normal saw blade, each tooth is angled out to the side to reduce friction with the wood, and making the blade less likely to bind on the wood, which is what was burning the wood and making the blades in the video slow down
Eating the whole pizza slice like that should be considered a war crime!!
Cutout-circle blade: "Not quite enough to beat the circle..."
* regular circle
i think an interesting shape would be, like, two slightly offset half circles, so that the effective radius from the center gradually increases after it hits the halfway point each time [or any number - you couldn't just do one spiral because it'd be unbalanced, but any other number of outward spiraling 'lobes' could work]
for anything not a circle - the teeth need to be pointing out more. (anything smaller than a pentagon is exempt) I would hazard a guess that the teether need to be angled the same as the interior angles- 120 degrees for a hexagon, 108 for pentagon, 135 for an octagon. The teeth placement in general should not be on corners - the pentagon with the 2 teeth at the corner is optimal (although, if the teeth were smaller at the corners, that might work better)
Saw teeth have to be "set". Every other tooth is set "bent" slightly to the right side and the others to the left side. That's why blades normally have an even number of teeth.
Protip. Shim the fence to bring the piece forward on the table about 2 inches. Then you don't have to flip it to finish the cut.
"It'll cut without friction." Saws only work because of friction.
Idk why i found it hilarious, how at the beginning of the video he was running while explaining😂
im like 99% sure the blades that performed poorly, especially the hexagon was entirely due to bad teeth placement the pentagons teeth were better angled so it ate into the wood easier
Yo, it's probably been like 5 years since I've watched this channel. What happened, where are my boys? Are they okay?
I don't know how you could not realize ahead of time which of these blades would and would not work... this was genuinely painful to watch.
If it generates clicks, it's ain't stupid! Right? 😂😂😂
The extra material loss with the bent corners, is likely because you didn't flatten the sides of the bent teeth.
This means the edge will dig into the side of the cut. Flattening it, should give a cleaner cut with less burning.
Also, the teeth are in the wrong position on most of these.
Fix those issues, and I believe every single one of the shapes would work just fine.
(Except for the off-center one. Spinning an off-center mass is literally how vibrators work, so that's a terrible idea for a saw-blade in general.)
Then again, I'm a programmer, not an engineer.
Surely the genius who inventend the saw blade tried all these form before getting the optimal final circular shape, praise to him 😲
"...If you want burning or a cleaner cut"? Uh... you got both of those in the SAME cut!
That crescent one was so badly balanced, it would be so less bad if it was balanced closer to the round part XD
make a sawblade tat burns just enough (not too much) to make the wood a consistent (or as much as possible) black. would be a selling point
I may have missed it, but at any point did you take into consideration the "set" of the teeth on the circular saw blade? It's not just about cutting the shape of teeth out of metal. Factory saw blades also have teeth with angles that alternate direction and protrude out slightly from the surface of the blade.
This makes me want to cover my monitor with ballistic glass. I like it. 😃
A regular circle blade could've made that cut way faster if you knew how to operate the saw correctly