Could you explain this? I was also confused in the last video about how the button cutters were aligned. Shouldn't precision matter even more if you're making a tool?
We're always using lesser tools to make greater tools. With enough time, you could start with 2 rocks in the wilderness and end with a nuclear reactor.
It's always a joy to watch these miniature marvels, but I think the most pleasing sight for me was at 1:57: an unplugged power cable. Having seen some truly awful injuries in machine shops caused by carelessness and complacency over the years - scalpings, fractures, dislocations, an amputated arm, and one horrible fatality when a monster lathe wrapped a man backwards around a workpiece, it's great to see Chris putting safety first. Look after those hands, mate! 🙂
That is pretty wild and leaves me thinking this must have been content exclusive the patrons. Never-the-less, quiet a nice mathematical dive into the complexities of gear cutting. Most would never consider machining their own involute gear cutters since they can be readily purchased. Starting from the beginning is something many machinist contemplate, but the idea of going frim iron ore to forming a bloom kind of kills the daydream. 😉
There's two ways you can see the playlist - Free way - wait until this series is complete. Other way - join the patrons list where the five part playlist of full length videos with his inimitable commentary is available as well.
Except you need to be careful, because you can't cut an involute with a circular cutter (not used like that anyway) the cutter produced might be close enough for many applications but it's not an involute cutter.
@@migtrewornan8085 - so, I'm curious and clueless on this, but isn't the fact that goose cutter rounds are on a tilt changing it from a circular cut to an oval? And what makes an involute cut involute (this is where I'm out of my zone)? I'll probably be looking this up now, but I see someone knowledgeable and have to ask - feel free to teach if you want. :)
@@Broadpaw_Fox An involute is the shape you would get by tying a pen to the end of a piece of string and then winding the string around a cylinder. It's not a circle or an oval (or any kind of conic section). So you can't cut an involute with a round cutter unless the cutter is moving more than just in/out of the cut. Eg you can cut an involute with a triangular cutter if you rotate both cutter and workpiece (look up "gear hobbing"). A circular cut might be close enough in many circumstances and an oval cut is probably closer still, but neither is truly an involute. In gears the involute shape is important because it ensures the gears turn at a constant rate as each tooth engages and disengages and a close approximation may not be good enough.
Chris, you were the very first person I ever supported on patreon, I love your work and your videos, I miss watching your longer stuff. I wish I was in a position in my life I could support you again. Thank you for all that you do!!!
@ Badgermatt75 2016 I am in a similar boat with you. I am a grad student and we are struggling financially. I am hoping that by this time next year I will be on my way to catching up financially and supporting my favorite YT content producers.
@@robertoswalt319 I can imagine! Mine was medical, open heart, plus I think last count 5 other surgeries, with another coming up this month. Makes money kinda tight, plus a teenager playing ice hockey. 😂 Good luck to you!
He made a gear cutter blank in this video - from here you cut into that square blank to make cutting faces, and then you use it to cut teeth into gears. It's a very useful tool if you need to make custom gears, like a clock maker. ;)
Cool video but I miss the "Hi, Chris here and welcome to clickspring..." at the start of the videos. Would love some narration to explain what's happening. I know it probably adds a bunch to the editing of the video but to a mere mortal like myself, the added context adds so much learning. Thanks mate. Keep it up.
Your reply was what I was looking for before I wrote the same thing! His shop is always spotless, I’m wondering how long it takes to clean back to spotless!
I think its a cutter isnt done yet. The teeth needs to be cut out in a milling machine. Or filed out, stoned, hardened and tempered. Then it can be used to cut gears.
Yeah, the fluffy square is a gear tooth cutters blank - from here you cut the teeth in to make a gear cutter. All you have to do now is machine in at just past 90⁰ on those sides and it makes a gear cutter - the radius sections make the gear tooth profiles so that they mesh smoothly. I'm pretty sure Chris has videos somewhere here that show him using a cutter like this, and I believe even showing the cutting of a blank like this into the gear cutter. :)
It's a blank for a gear cutter. The profile is the shape of the space it'll cut between the gear teeth. It's the same gear cutter design as in these earlier videos (or possibly the exact same cutter): ruclips.net/video/GlAm9eva_fQ/видео.html ruclips.net/video/4iBWq6aOugw/видео.html ruclips.net/video/_Iu2sYW4a3Q/видео.html
Was the unplugged operation a finishing pass? And I liked how the cutter looked like it was spinning backwards in the time lapse. Great vid as always. Edit: typo
Just so I can make sure, are you calling it an involute gear in quotation marks because you used two circles to cut a profile that looks something like an involute gear tooth but really isn’t?
Looks to me like this will become a cutter to make involute gears ... the buttons made the "negative" shape on what im guessing will be a cutter that will form involute teeth on sumething else. I think the discrepancy between this shape and a true involute is the reason for the " " in the title.
I had the same thought when I saw the circular cutters but I believe Paul is correct , the quotes indicate the shape isn’t actually a true involute. Chris seems like the type of machinist who would certainly understand the distinction. I recently had to derive a scalable true involute shape for a gear template I am using in a CAD system. I failed trying to do it purely mathematically and ended up using a geometric method.
According to my high school shop teacher? Not enough. Never enough. That man would have submerged the entire shop in a swimming pool full of cutting fluid if he could. He made some smooth parts though...
How the hell you make that small lathe that much stiff? That type of cutter and this operation generate incredible forces, i wonder how you make this without chatter?
That's not a cheap small lathe, that's one of those much more expensive high quality "small" lathes, like jewelers and clockmakers use. Not cheap, but very high quality. ;)
He's also taking very small cuts (0.005 mm depth of cut, or 0.0002 inch) at a slow speed, so working within what the lathe can put up with. Also the steel is soft at this point; Chris hardens and tempers it later. Cheers
I'm confused. The profile isn't involute. It's just an arc. Can you please explain? I've seen enough of your vids to know you know lots more than me. And I make gears for a living LOL. Edit, I just read the description. You can kick my arse now LOL.
This is custom tooth cutter he’s making. The next step will be to take those 4 alignment holes and cut at 90 degrees and remove a notch. Then he’ll use that as the cutter to cut the teeth for the grandfather clock build. If memory serves, he has a full video on it (with significantly less detail) on his main channel under the “spare parts” playlist. Not 100% sure on that, but I do remember seeing it at some point.
The piece being made is a tool, button cutters give the right profile to cut accurate and consistent teeth into a gear wheel. There's a bit more here ruclips.net/video/CGs-hjQmrj0/видео.html
I was trying to figure it out from the last video, but how did you clock the 2 buttons to be turned identically to each other in their holes? It didn't look like there were any sort of indicators on them or anything.
I don't think it matters too much - they are cylindrical - so they cut a circular profile - the angle of the "top" is simply to make shearing the material being cut easier - but, unless the two buttons are clocked wildly differently, any small difference in their relative angles will only have a very, very small effect on the tool being cut. That's my guess anyway...
I'm thinking it will have something to do with eliminating any drag behind the cutting edge, like you may have on a circular cutter, on very small work pieces.
They are used to cut gears, this is just a blank though because he has to cut from the point of the square to the hole he had the pin in and create some relief on the back of the teeth. Vid: ruclips.net/video/GlAm9eva_fQ/видео.html
i have no idea what i'm looking at, youtube keeps pushing these button cutter videos on me for some reason. this one makes button cutters atleast understandable, but still not information that i would ever need.
Right, now I see why the alignment of the cutters was enough to do by eye. I hadn't realised you were making the tool that makes the tool. Very cool.
Could you explain this? I was also confused in the last video about how the button cutters were aligned. Shouldn't precision matter even more if you're making a tool?
We're always using lesser tools to make greater tools. With enough time, you could start with 2 rocks in the wilderness and end with a nuclear reactor.
@@Breakfast_and_Bullets You've just perfectly described the game Factorio.
@@kochrobin Have I? I'll have to look it up!
@@rhysmanley3217 A circle is a circle no matter how you turn it.
It's always a joy to watch these miniature marvels, but I think the most pleasing sight for me was at 1:57: an unplugged power cable.
Having seen some truly awful injuries in machine shops caused by carelessness and complacency over the years - scalpings, fractures, dislocations, an amputated arm, and one horrible fatality when a monster lathe wrapped a man backwards around a workpiece, it's great to see Chris putting safety first.
Look after those hands, mate! 🙂
😱😨😬
Oh man. I've always wanted to get into machining (but who has the money for that) and seeing pics of those accidents always made my blood run cold
My brother was a firefighter and he told me about several guys who literally got wrapped around machines and died.
Much like pto shafts on tractors.
Very cool. I was wondering how those button cutters worked. I'd sure love to see more Antikythera Mechanism progress in 2022. Amazing work!
Mark, it's coming Dude. GB :)
This man is worth watching, even when he's on a break!
I'm wondering where this part is mounted on the James Webb Telescope
I think it ended up becoming a gear tooth cutter in some other clips
You mean where the James Webb is mounted on this, no?
That is pretty wild and leaves me thinking this must have been content exclusive the patrons. Never-the-less, quiet a nice mathematical dive into the complexities of gear cutting. Most would never consider machining their own involute gear cutters since they can be readily purchased. Starting from the beginning is something many machinist contemplate, but the idea of going frim iron ore to forming a bloom kind of kills the daydream. 😉
I’ve never seen anything like this on any other RUclips channel or in life. Pretty cool👍🙂
Excellent piece of form working Chris.👍👍
How the Allan key nut clicks free (first position end of work) just made my day, thanks Chris!
It will be great to have a playlist of all these short videos and how they apply to the end assembly.
There's two ways you can see the playlist -
Free way - wait until this series is complete.
Other way - join the patrons list where the five part playlist of full length videos with his inimitable commentary is available as well.
Just go to his main channel and start binge watching. These clips come from prior projects.
You're in luck! These come from full-length, narrated "Tools, Glorious Tools" videos from his Patreon page. This one's from #10, part 3.
I dont know for sure Chris, but I think you just saved me a thousand dollars in cutters! Cheers.
Except you need to be careful, because you can't cut an involute with a circular cutter (not used like that anyway) the cutter produced might be close enough for many applications but it's not an involute cutter.
@@migtrewornan8085 - so, I'm curious and clueless on this, but isn't the fact that goose cutter rounds are on a tilt changing it from a circular cut to an oval? And what makes an involute cut involute (this is where I'm out of my zone)? I'll probably be looking this up now, but I see someone knowledgeable and have to ask - feel free to teach if you want. :)
I promise you he didn't. If you want to cut gears, buy the proper cutters.
@@Broadpaw_Fox An involute is the shape you would get by tying a pen to the end of a piece of string and then winding the string around a cylinder. It's not a circle or an oval (or any kind of conic section). So you can't cut an involute with a round cutter unless the cutter is moving more than just in/out of the cut. Eg you can cut an involute with a triangular cutter if you rotate both cutter and workpiece (look up "gear hobbing"). A circular cut might be close enough in many circumstances and an oval cut is probably closer still, but neither is truly an involute. In gears the involute shape is important because it ensures the gears turn at a constant rate as each tooth engages and disengages and a close approximation may not be good enough.
That's deliciously meta, a gear cutter cutter.
Chris, you were the very first person I ever supported on patreon, I love your work and your videos, I miss watching your longer stuff. I wish I was in a position in my life I could support you again. Thank you for all that you do!!!
@
Badgermatt75 2016 I am in a similar boat with you. I am a grad student and we are struggling financially. I am hoping that by this time next year I will be on my way to catching up financially and supporting my favorite YT content producers.
@@robertoswalt319 I can imagine! Mine was medical, open heart, plus I think last count 5 other surgeries, with another coming up this month. Makes money kinda tight, plus a teenager playing ice hockey. 😂
Good luck to you!
A part so interesting that one feels compelled to invent something into which it can go.
He made a gear cutter blank in this video - from here you cut into that square blank to make cutting faces, and then you use it to cut teeth into gears. It's a very useful tool if you need to make custom gears, like a clock maker. ;)
Oh so these were the things that go in the thing to make the thing that cuts gear teeth, very cool.
Cool video but I miss the "Hi, Chris here and welcome to clickspring..." at the start of the videos. Would love some narration to explain what's happening. I know it probably adds a bunch to the editing of the video but to a mere mortal like myself, the added context adds so much learning. Thanks mate. Keep it up.
I would like to see a clean down full video of how you clean up the lathes and cutting tools.
Your reply was what I was looking for before I wrote the same thing! His shop is always spotless, I’m wondering how long it takes to clean back to spotless!
I wish the longer videos were a thing still. I'd like to see a tourbillon wall clock build. Maybe some plans for sale.
You make the tools to make the parts and watching you is a great pleasure to do
This never gets old Chris! TFS, GB :)
👍👌👏 A tool that makes a tool = very cool!
i really enjoyed viewing this (again), thanks so much for posting!
Those who watched the previous video:
OH! So that's what this is used for!
I'll be damned. Not an apple in sight. I imagine i would not find that tool in many shops.
Well done.
Next episode is cutting down to the holes to make a gear ⚙️ cutting tool. 👍🏴
Yep. :)
I dont know what it's for but it's looks like it could be sharpened to a razors edge. Probably one of the coolest processes I've ever seen.
I think its a cutter isnt done yet. The teeth needs to be cut out in a milling machine. Or filed out, stoned, hardened and tempered. Then it can be used to cut gears.
Yeah, the fluffy square is a gear tooth cutters blank - from here you cut the teeth in to make a gear cutter. All you have to do now is machine in at just past 90⁰ on those sides and it makes a gear cutter - the radius sections make the gear tooth profiles so that they mesh smoothly. I'm pretty sure Chris has videos somewhere here that show him using a cutter like this, and I believe even showing the cutting of a blank like this into the gear cutter. :)
@@Broadpaw_Fox, he’s already shown that process in earlier videos. I’m going to have to go back and check those out again, maybe watch them in order.
It's a blank for a gear cutter. The profile is the shape of the space it'll cut between the gear teeth. It's the same gear cutter design as in these earlier videos (or possibly the exact same cutter):
ruclips.net/video/GlAm9eva_fQ/видео.html
ruclips.net/video/4iBWq6aOugw/видео.html
ruclips.net/video/_Iu2sYW4a3Q/видео.html
Aha! Now I know what they’re for. Thanks
Good job, nice to look at.
Lol that spanner you used to turn the work in the chuck looks WANGED, mate!
Thoroughly!
Was the unplugged operation a finishing pass?
And I liked how the cutter looked like it was spinning backwards in the time lapse.
Great vid as always.
Edit: typo
As the form tool goes deeper into the part, it's cutting more at once and his little lathe didn't have enough torque at that low of speed.
Do you plan to do similar shopmade tooling with carbide blanks later down the line?
Amazing as usual Chris.
Can you please tell Which camera you use to shoot videos?
Just so I can make sure, are you calling it an involute gear in quotation marks because you used two circles to cut a profile that looks something like an involute gear tooth but really isn’t?
USSR time saying: идёт производство, средств производства! (commencing the production of the means of production) x)
I finally understand! :D
Even watching tool making gets me excited for your videos, does that make me weird??🤔🥴
Thanks for sharing 👍
somehow i don't get where the "involute" comes from.
you cut two evenly radii ... or did i miss something?
for which module is this cutter?
Looks to me like this will become a cutter to make involute gears ... the buttons made the "negative" shape on what im guessing will be a cutter that will form involute teeth on sumething else.
I think the discrepancy between this shape and a true involute is the reason for the " " in the title.
I had the same thought when I saw the circular cutters but I believe Paul is correct , the quotes indicate the shape isn’t actually a true involute. Chris seems like the type of machinist who would certainly understand the distinction.
I recently had to derive a scalable true involute shape for a gear template I am using in a CAD system. I failed trying to do it purely mathematically and ended up using a geometric method.
In one of the recent videos, Chris mentions that it's not going to make an exact involute.
@@sacundim ok so its an approximation...
cool - thank you
That tooling arrangement somewhat resembles a sheet metal deburring hand tool.
Those buttons are a’cutting above the rest!
Very cool!
How much cutting oil did you use? The close up view makes it look like a lot.
My guess is around 1/4 oz or approx 7ml
According to my high school shop teacher? Not enough. Never enough. That man would have submerged the entire shop in a swimming pool full of cutting fluid if he could. He made some smooth parts though...
Cudos for showing that you turn the lathe maualy only when it's unplugged.
Btw am I the only one who sees see through plugs as interesting?
thats so smart
Affascinate ad ogni secondo...
At last! I know now what a button cutter is. I thought you were making something to do with the fashion industry.....
How the hell you make that small lathe that much stiff? That type of cutter and this operation generate incredible forces, i wonder how you make this without chatter?
That's not a cheap small lathe, that's one of those much more expensive high quality "small" lathes, like jewelers and clockmakers use. Not cheap, but very high quality. ;)
He's also taking very small cuts (0.005 mm depth of cut, or 0.0002 inch) at a slow speed, so working within what the lathe can put up with. Also the steel is soft at this point; Chris hardens and tempers it later. Cheers
I bet ToT is crying right now watching this lol
I'm confused. The profile isn't involute. It's just an arc. Can you please explain? I've seen enough of your vids to know you know lots more than me. And I make gears for a living LOL.
Edit, I just read the description. You can kick my arse now LOL.
So that's why it has 5 holes in it... 🤯
I still don’t understand the purpose of button cutters or the flange profile it just made, but these are mesmerizing tool videos to watch nonetheless!
This is custom tooth cutter he’s making. The next step will be to take those 4 alignment holes and cut at 90 degrees and remove a notch. Then he’ll use that as the cutter to cut the teeth for the grandfather clock build. If memory serves, he has a full video on it (with significantly less detail) on his main channel under the “spare parts” playlist. Not 100% sure on that, but I do remember seeing it at some point.
The piece being made is a tool, button cutters give the right profile to cut accurate and consistent teeth into a gear wheel.
There's a bit more here ruclips.net/video/CGs-hjQmrj0/видео.html
Thanks!
I was trying to figure it out from the last video, but how did you clock the 2 buttons to be turned identically to each other in their holes? It didn't look like there were any sort of indicators on them or anything.
I don't think it matters too much - they are cylindrical - so they cut a circular profile - the angle of the "top" is simply to make shearing the material being cut easier - but, unless the two buttons are clocked wildly differently, any small difference in their relative angles will only have a very, very small effect on the tool being cut. That's my guess anyway...
There is a note about this in the prior video. He aligned them by eye.
That's the involute of a square though?
I'm thinking it will have something to do with eliminating any drag behind the cutting edge, like you may have on a circular cutter, on very small work pieces.
Now *that's * a "forming tool" , making another "forming tool"
Can anyone tell me what this special cutter is for?
They are used to cut gears, this is just a blank though because he has to cut from the point of the square to the hole he had the pin in and create some relief on the back of the teeth.
Vid: ruclips.net/video/GlAm9eva_fQ/видео.html
Looks like it's for cutting gears
Yep - he's making a gear tooth cutter. This was the blank that gets cut into the final tooth cutter.
@@Broadpaw_Fox
Wow so much just to make the cutter. When Chris hasn't even started to make the gear.🤔
Here you can see the cutter at work.
ruclips.net/video/CGs-hjQmrj0/видео.html
What the.....? Is that really an involute curve on the square? My brain fails to compute what I just witnessed
LAst video, I thought you were making cufflinks...
86 likes in 9 minutes.
And now we go back two months to see the next installment ;)
ruclips.net/video/CGs-hjQmrj0/видео.html
needs WAY more cutting oil. you really went in dry there
Witchcraft! Witchcraft I say,,
i have no idea what i'm looking at, youtube keeps pushing these button cutter videos on me for some reason. this one makes button cutters atleast understandable, but still not information that i would ever need.
Y tho
First
Second but you get a 🥈