Make your own involute gear cutters. These will be used to make a pair of bevel gears. Yes, I am using cutting fluid. The smoke you see is from the neat cutting oil.
Very impressive, the jigs, fixtures, and tooling that you have designed and fabricated in your many videos. I always pick up a new idea from you, to use in my own shop!
@TitusLivy777 The button tool refers to the small discs which are shaped to the profile required and mounted at the correct distance appart to form the cutting tool. all the information was from Ivan laws book Gears and Gear cutting. Well worth buying it only costs amout £6.00, try Amazon.
Yes the center drill is a short drill used to give the larger drills an accurate location. Also used for making a center in material for turning between centers,
@c4fishfood I didn't have any used oil but that is what is often reccomended. A larger amount than shown is the video prefered. I think I have better results using water. The cutter shown was a little soft.
@impavitus Kasenit case hardening powder only gives a very thin hard surface. It wouldn't have survived cutting all the teeth. Using a high carbon steel makes it hard throughout.
If I hadn't gone into printing as a trade, I likely would have become a machinist! I hope to set up a small work place someday to learn something of this skill.
@dan10400 I am using the method Ivan descibes in his book but used a flat holder and put the clearance angle on the button instead. Is it working out the button size you are having problems with or the construction?
The information came from Ivan law's book Gears and gear cutting. The book is very good on gear cutting and only costs about £6. There are tables showing sizes for 20 and 30 deg pressure angles. The steel is gauge plate; silver steel in sheet form.
If you mean the mill it's a Raglan. No longer made, you would have to search for a used one. The lathe of coarse is a Myford, model ML10 also no longer made.
@Grousuba Ok. You are correct, but the error between the circular form used and the true involute shape is very small. Much less than the error accepted when a commercial cutter is used to cut gears with a range of tooth number.
It is based on the Kennedy one. I increased the depth and length of the saw and used a fabricated construction. The Kennedy one has a cast body. I didn't use any damping like the Kennedy has, works fine without it. I didn't make any drawings, made it up as I went along.
Hi again,Thank you for the information, I am ashamed to say I have the book you mentioned on my book shelf and from the condition of it I do not think I have ever opened it! However it shall be compulsive reading for the forseeable future.
@myfordboy Thanks again for providing such helpful info! Your RUclips channel has been a real find for me! Please keep up the good work! Oh...and if you ever have the time and the inclination to make a video re making button tools, I'm sure many viewers would benefit. Thanks again!
I always use a piece of wire to suspend the piece in the oil and keep it moving so it doesn't heat up the oil around the part and used oil with carbon in it also helps
engineers rock.... we have the oddest collection of tools, he has a lathe but lacks a band saw so he has a jerry rigged hack saw. I have a surface planar, a dremil and a hot air rework station but for about 4 years I had no claw hammer.
I have a good selection of involute gear cutters but not one for this size. Cost was not justified for two gears. I wanted to try to make own just for the hell of it.
Can you offer any more details on the silver steel button tools? I have the Ivan Law book on gearcutting, who describes a similar method but I can't seem to find or how to make these button cutters. Thanks for your videos.
Do hardening (+annealing) alter the dimensions of silversteel significant? I would like to make collets from silver steel but I have no way to work on it after it is hardened.
@myfordboy. I am having difficulty determining finding silversteel to make the button cutters. Or do I just start with O1 drill rod? On a related question, what was the grade steel used to make the cutter blank? Thanks for your help.
Very cool, I like it. Where can I get a machine like yours? what's the brand name? I would appreciate if you can give me a link to where I can buy it. Thanks.
A couple of tips, a good quality cutting oil or flood coolant along with reduced spindle speeds as you increase drill sizes will improve cutting and prolong tool life, also if you can, use a larger container to quench the workpiece so you can stir as you quench, this will reduce the risk of cracks forming on the same note if theres a cold breeze outside theres another risk of cracking the workpiece, keep it wrapped in rag until you can clean it up and temper it, you did temper it ?? regards :-)
why new oil for the quench? i interested in making some hardened parts, and have typically seen recommendations to use old motor oil due to the carbon content.
Which metal is recommended to make this cutter? I was thinking of using spring steel and holding the spring steel cutter flat between two other washers if that was possible and cutting the cutter tips with carbide?
Hi! Nice video, but I would like to know how you worked out the dimentions. I will need to make a 6pd cutter for a 9 tooth bevel gear for my 3" Fowler differential. Any help?
I used the method shown in Gears and gear cutting by Ivan Law. Some of the info on bevel gear cutting was not very clear but I some other data I can let have on that.
@dlstb 6 years machine shop, engine restoration, Rolls Royce and Bentley. Most of our kit was 1950's or older, with the biggest lathe being an 8m bed toss. From there I went out as an onsite fitter doing in situ line boring on plant. Yes I agree oil makes a difference to cutter lifespan but not to the sound... That was all I was saying. No offence intended, lol.
Hi loved the video,have whetted my appetite to make a similar cutter to make boxford change wheels. How do you cope with achieving the correct pressure angle on the cutter? and what grade steel are you using? Hope this is not asking too much. Boxford95
It is not essential to have the buttons exactly in the center of the blank ( though desirable) as the depth of cut in the gear blank is less than the cutting part of the tool. There is a slight error in the shape of the involute curve using this method but it is very small. All the details are in Ivan laws book, Gears and gear cutting, essential reading!
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Very impressive, the jigs, fixtures, and tooling that you have designed and fabricated in your many videos. I always pick up a new idea from you, to use in my own shop!
@josemiguelfv I am using cutting fluid. The smoke you see is from the neat cutting oil.
Fantastic tutorial on how to make a gear cutter. Keep up the great work.
@zeedee21 The advatage of the method I used is an accurate profile can be made on the cutter.
Dude, that screaming noise is your HSS tools screaming for COOLANT!! Nice vid gets you another thumbs up! Thanks for posting.
@gblpst81 If you look around 2:17 the smoke coming off the drill is from the cutting oil. Video has been editted to hold your attention!
Love the old myfords...you can really get stuff done really quickly!!
Great video as always - a joy to watch - i also love your power Hacksaw thats cool
I am in awe, very fine craftmanship.
Very neat, the video was a joy to watch.
I am setting up my 1920's lathe at the moment and hopem to lean to use it soon.
Seriously, dude, I am jealous! I love this kind of stuff.
@TitusLivy777 The button tool refers to the small discs which are shaped to the profile required and mounted at the correct distance appart to form the cutting tool. all the information was from Ivan laws book Gears and Gear cutting. Well worth buying it only costs amout £6.00, try Amazon.
@apowellz In order to give clearance to the tool it is not rotated about its own centre but is offset in its arbour.
@dragula159 I don't have oxy acetylene available. I would still use the propane though, its a larger flame and would heat the metal more evenly.
@Xraller Its a ceramic heat reflecting material. Kaowool or simular.
Awesome video, can't wait for the next one!
Yes the center drill is a short drill used to give the larger drills an accurate location. Also used for making a center in material for turning between centers,
@c4fishfood I didn't have any used oil but that is what is often reccomended. A larger amount than shown is the video prefered. I think I have better results using water. The cutter shown was a little soft.
@impavitus Kasenit case hardening powder only gives a very thin hard surface. It wouldn't have survived cutting all the teeth. Using a high carbon steel makes it hard throughout.
See my video Cutting Parallel Depth Bevel Gears at Home, I'll add a link to this video.
Gret stuff, can't wait for the gear cutting video :)
@GeneralG1810 Its normal practice to start with a smaller drill to guide the larger one. Too much power is needed to go straight to the large one.
Gauge plate is silver steel (drill rod) but in a bar form. You can shape it then heat to red and quench which hardens it. Can be tempered also.
Hey!! some of our gear was bought in the '60's, if you dont mind, V8 !!
And great work, Myfordboy, keep going!
If I hadn't gone into printing as a trade, I likely would have become a machinist! I hope to set up a small work place someday to learn something of this skill.
@BarneySaysHi I do. The smoke you see from the drilling is from the cutting fluid.
@snoebay88 Here in the UK gauge plate is sold in sheet form. Gauge plate is a sheet version of what you would call drill rod.
The cutter is made of gauge plate. It can be shaped in it's supplied soft state and hardened by heat as shown.
@dan10400 I am using the method Ivan descibes in his book but used a flat holder and put the clearance angle on the button instead. Is it working out the button size you are having problems with or the construction?
@dubphat It is good practice to temper but I don't usualy bother.
You are of course correct it is normal pratice to temper after hardening. I don't usualy bother though and seem to get away with it.
The information came from Ivan law's book Gears and gear cutting. The book is very good on gear cutting and only costs about £6. There are tables showing sizes for 20 and 30 deg pressure angles. The steel is gauge plate; silver steel in sheet form.
If you mean the mill it's a Raglan. No longer made, you would have to search for a used one. The lathe of coarse is a Myford, model ML10 also no longer made.
@apowellz I used an offset of 1/4". Not too critical.
The cutter is made from guage plate ( drill rod if you are in the US) After shaping it can be hardened as shown in the video.
Hei master, very instructive ...Thank you for sharing, your work is very precious... see next video... Salut
rEALLY IMPRESSED WITH THE HACKSAW
@Grousuba Ok. You are correct, but the error between the circular form used and the true involute shape is very small. Much less than the error accepted when a commercial cutter is used to cut gears with a range of tooth number.
@gibbo1112 The smoke you see is comming from the cutting oil. Look at 2:10 and you can see red cutting oil on the bore.
Nice little lathe and skills ;)
@AZAKO80 Not realy. High tesion steel would be hard to machine. The gauge plate is like regular steel but can be hardened.
Nice work!
It is based on the Kennedy one. I increased the depth and length of the saw and used a fabricated construction. The Kennedy one has a cast body. I didn't use any damping like the Kennedy has, works fine without it. I didn't make any drawings, made it up as I went along.
It's a ceramic material called Kaowool. Torch is a Sievert propane one.
The tool made is a flycutter and the method shown produces the correct tooth profile.
@erklaerbaer01 It is usual to anneal after hardening but I don't usualy bother. I have no problems with it being too brittle. saw is my own design.
It's just held by pressure from the rotating center in the tailstock.
@Grousuba Ivolute refers to the tooth form the cutter will make.
I like your cut off saw.
Hi again,Thank you for the information, I am ashamed to say I have the book you mentioned on my book shelf and from the condition of it I do not think I have ever opened it! However it shall be compulsive reading for the forseeable future.
@myfordboy Thanks again for providing such helpful info! Your RUclips channel has been a real find for me! Please keep up the good work! Oh...and if you ever have the time and the inclination to make a video re making button tools, I'm sure many viewers would benefit. Thanks again!
I always use a piece of wire to suspend the piece in the oil and keep it moving so it doesn't heat up the oil around the part and used oil with carbon in it also helps
@AZAKO80 High carbon steel, sold as guage plate.
engineers rock.... we have the oddest collection of tools, he has a lathe but lacks a band saw so he has a jerry rigged hack saw. I have a surface planar, a dremil and a hot air rework station but for about 4 years I had no claw hammer.
@jlg4880 No, although it is normal practice to do so.
Cool video
I have a good selection of involute gear cutters but not one for this size. Cost was not justified for two gears. I wanted to try to make own just for the hell of it.
@Morkvonork I don't belive the dimentions change with hardening.
@astriknon Drilling steel like that the best practice is to use a continuous flow of coolant/cutting oil.
The cutter is made of silver steel which can be machined and then hardened to make the cutter. The actual worm is made of steel
@quatfro Gauge plate i.e. oil hardening tool steel
I don't have a lathe, so don't know, but is center drilling done to help prevent larger bits from wandering when drilling into the material?
@myfordboy wierd, the stuff i use never does that... it lubricates so well it just doesnt get hot
now that was slick!
GREAT JOB!!!
They are not available here in the UK
Used motor oil is recommended, I didn't have any. I often use water.
3:01 Finally... cutting oil... I use it for drilling too!
@askjerry So do I
@myfordboy thanks for the reply since I have an old can of that stuff in my garage.
very quick reply thank you
Can you offer any more details on the silver steel button tools? I have the Ivan Law book on gearcutting, who describes a similar method but I can't seem to find or how to make these button cutters. Thanks for your videos.
Have you ever tried using a "steel hawg" instead of all the twist drills?
@myfordboy I understand that.
The tooth profile this cutter would generate would be circular not involute.
Thank you for bring this to my attention. I filled a copyright issue and the offending video has been removed.
A very nice video as always,
I think you are sparing with the cutting oil so as not to
upset your wife with the smell. thanks for sharing. :)
start with mild steel?
No it's diametric pitch which is basicaly the size of the teeth. The larger the DP the smaller the teeth.
Do hardening (+annealing) alter the dimensions of silversteel significant? I would like to make collets from silver steel but I have no way to work on it after it is hardened.
@PLUSHAIRPLANECARPET No ,ceramic material.
Well done bro
@myfordboy. I am having difficulty determining finding silversteel to make the button cutters. Or do I just start with O1 drill rod? On a related question, what was the grade steel used to make the cutter blank? Thanks for your help.
That was a very cool video! What is your opinion of grizzly metal working tools?
Very cool, I like it. Where can I get a machine like yours? what's the brand name? I would appreciate if you can give me a link to where I can buy it. Thanks.
A couple of tips, a good quality cutting oil or flood coolant along with reduced spindle speeds as you increase drill sizes will improve cutting and prolong tool life, also if you can, use a larger container to quench the workpiece so you can stir as you quench, this will reduce the risk of cracks forming on the same note if theres a cold breeze outside theres another risk of cracking the workpiece, keep it wrapped in rag until you can clean it up and temper it, you did temper it ?? regards :-)
Would that be the same as using high tensile steel then hardening it in oil?
why new oil for the quench? i interested in making some hardened parts, and have typically seen recommendations to use old motor oil due to the carbon content.
Which metal is recommended to make this cutter? I was thinking of using spring steel and holding the spring steel cutter flat between two other washers if that was possible and cutting the cutter tips with carbide?
Hi! Nice video, but I would like to know how you worked out the dimentions. I will need to make a 6pd cutter for a 9 tooth bevel gear for my 3" Fowler differential.
Any help?
I used the method shown in Gears and gear cutting by Ivan Law.
Some of the info on bevel gear cutting was not very clear but I some other data I can let have on that.
as far as hardening
could you tell me what that white material you rested the cutter on is?
and what type of torch you used to heat it up with thx
Did you ever make a gear with that cutter? Couldn't find one on your video page.
+riphaven I used the cutters to make bevel gears. Here's the video ruclips.net/video/7yld4VboYg0/видео.html
Thinking about making one for my homemade milling machine for cutting outer splines...any ideas??? I'm open to suggestions...
Thx then how do u choose the steel? A cutter have to be very hard.
@dlstb 6 years machine shop, engine restoration, Rolls Royce and Bentley. Most of our kit was 1950's or older, with the biggest lathe being an 8m bed toss. From there I went out as an onsite fitter doing in situ line boring on plant. Yes I agree oil makes a difference to cutter lifespan but not to the sound... That was all I was saying. No offence intended, lol.
Hi loved the video,have whetted my appetite to make a similar cutter to make boxford change wheels. How do you cope with achieving the correct pressure angle on the cutter? and what grade steel are you using?
Hope this is not asking too much.
Boxford95
Myfordboy, Just wondering what steel you used to make the cutter?
Does the saw lift on the return stroke like gingery's?
I didn't find it necessary to build such a mechanism in as the action of the saw gives a degree of lift.
It is not essential to have the buttons exactly in the center of the blank ( though desirable) as the depth of cut in the gear blank is less than the cutting part of the tool. There is a slight error in the shape of the involute curve using this method but it is very small. All the details are in Ivan laws book, Gears and gear cutting, essential reading!
@v8bmwboy 43 years in the machining trade. If you used flood coolant you won't hear that noise and your drills will last more than one hole.
have you ever tryed to use oxyacetylene for heating up the metal its hotter then propane