@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.
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 :-)
Quenching should be done with the part moving through the oil rapidly rather than simply plunging to the bottom of the container! Great job to make this yourself though!
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.
A little more cutting oil during the drilling process would have been nice! My teeth hurt from the sound. Why did you start with square stock instead of round ?
@snoebay88 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.
@v8bmwboy 6 years in engineering and how many in an actual machine shop working a manual lathe, mill, and grinders? Myself, 2 years in actual machine work and 2 in study for engineering degree after 5 years as a Marine. Oil makes a difference. You need to get out of the classroom and into the field. Remember, those who can do and those who can't teach.
@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.
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.
@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.
Can you please provide more information about the button tool you made? What is a button tool? What is its cutting profile? How did you make it? If you have the time to point me toward more info on the internet, I'll be very grateful. In any case, thanks for your help!
@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.
@myfordboy Thanks again for providing such helpful info! Your YouTube 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!
@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.
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.
@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?
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.
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.
Your hacksaw looks very much like a Kennedy Hexacut but I see from your comments that you designed and made it yourself. Do you have any drawings available? I'd love to make something like this, very compact and practical.
that lil ML10 has some torque! What gear did u do the drilling with? Must say the tool changes are awsomely quick too! (nice "special effect!) ;) Your hardening practices needs some more sophistication though! Judging colours of heat in daylight is impossible, and motor oil is not a good quench media, use veggie oil, suspend the part in a wire and stir i around, use much larger vessel. But what you did works OK, but prolly less so for a part with more irregular form.
I've watched your videos in the past and it's clear to me you know what you're doing, far better than I do. I was curious why I didn't see you use cutting fluid until you used the boring bar. Was that just edited out of the video? Glad to see another video from you. Take care.
@myfordboy I hope I didn't offend with my question. I did notice the smoke but thought maybe it was just from residual oil on the drill. So there's no mistake, I have GREAT respect for what you do. It's amazing to me. The fact that you not only machine your own parts and make some of your tools from scratch, but you also cast your own complex aluminium parts. I look forward to your future videos.
@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.
@myfordboy I understand. What is the offset on the arbor, or does it really matter just so there is clearance for the cutter point? Thanks for the reply.
bad drawing at 4:13
wilsojac1 35 minutes ago
might be a dumb question but pros and cons: motor oil vrs. casonite? why don't you use casonite? wouldn't that be better?
impavitus 3 days ago
@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.
myfordboy 3 days ago
@myfordboy thanks for the reply since I have an old can of that stuff in my garage.
impavitus 3 days ago
lol @4:13
Airsoftslave 4 days ago 3
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 :-)
Boxman363 5 days ago
@Boxman363 BTW there nothing wrong with using square material if you dont have any round in stock :-))
Boxman363 5 days ago
Why didn't you use the oil for the drillbits?
BarneySaysHi 5 days ago
@BarneySaysHi I do. The smoke you see from the drilling is from the cutting fluid.
myfordboy 4 days ago
@BarneySaysHi I do. The smoke you see from the drilling is from the cutting fluid.
myfordboy 4 days ago
Oil, oil, oil! Holy shit, man.
UnitSe7en 5 days ago
3:01 Finally... cutting oil... I use it for drilling too!
askjerry 6 days ago
@askjerry So do I
myfordboy 4 days ago
4:15 is a skinny penis
RYDERkN 1 week ago 3
:-( Stop the metal massacre, use laser cutters and loose fewer metal to saw-dust
Simcore999 1 week ago
Oil me PLEASE!
CaveManLabs 2 weeks ago
"gear cutter" I dont get that,
cpepe223 2 weeks ago
I would have started with a high quality washer of close to the size needed.
You will find that washers are very cheap if purchased from the correct sources.
And, it really does not matter where you are at when the suppliers are in China.
But, you get what you pay for.
I want cheap as whatever I am going to produce will always be used for just a one off project, proof of concept, and nothing more.
Arabhacks 3 weeks ago
Quenching should be done with the part moving through the oil rapidly rather than simply plunging to the bottom of the container! Great job to make this yourself though!
havefaith96 3 weeks ago
4:15 looks like a dick
stonedvideos1 3 weeks ago 3
@stonedvideos1 not just a dick, and dick and balls
EyeOnTheTV 2 weeks ago
oil or atleast some fun water, guy.
oliver2341 3 weeks ago
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.
TAPriceCTR 3 weeks ago
Next year, there will be an invention called; "cutting oil".
RappedTooTight 3 weeks ago
that saw is fucking scary
VirtRampage 4 weeks ago
2:11 what run out of oil :)
Films4You 4 weeks ago
Not sure what people are saying about the oil. If you look in the hole you will see he has coated the inside with oil.
astriknon 1 month ago
@astriknon,
Not sufficient. When cutting steel with HSS the oil doubles as a coolant, and therefore needs to be applied copiously.
RappedTooTight 3 weeks ago
@astriknon Drilling steel like that the best practice is to use a continuous flow of coolant/cutting oil.
snoebay88 3 weeks ago
TOO MUCH SPEED ON THOSE LARGER DIA. DRILL BITS!!
Vicsonvee 1 month ago 2
4:12 penis
brendonk01 1 month ago
No idea where you learned your machining practices but they're atrocious.
deathfrogg 1 month ago 2
A little more cutting oil during the drilling process would have been nice! My teeth hurt from the sound. Why did you start with square stock instead of round ?
snoebay88 1 month ago 21
@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.
myfordboy 1 month ago
@snoebay88 That's just the way it sounds when your drilling steel, oil would have made no difference to the sound. (6 years engineering in Oxford UK)
v8bmwboy 3 weeks ago in playlist Machining and Workshop videos
@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.
snoebay88 3 weeks ago 2
This has been flagged as spam show
@snoebay88 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.
v8bmwboy 2 weeks ago
@v8bmwboy 6 years in engineering and how many in an actual machine shop working a manual lathe, mill, and grinders? Myself, 2 years in actual machine work and 2 in study for engineering degree after 5 years as a Marine. Oil makes a difference. You need to get out of the classroom and into the field. Remember, those who can do and those who can't teach.
dlstb 2 weeks ago
@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.
v8bmwboy 2 weeks ago
I get the impression that you buy your candles in cube shape and machine them down to round.
watzupdawg 1 month ago
Where did you come up with the design for your power hacksaw?
ronald44181000 1 month ago
@ronald44181000 Its my own design. The hex bar arrangment is based on a Kennedy.
I have plans for sale for this.
myfordboy 1 month ago
way to fast for the drill love your little saw though
shadysean1 1 month ago
Did you temper the cutter after hardening?
jlg4880 2 months ago
@jlg4880 No, although it is normal practice to do so.
myfordboy 2 months ago
@myfordboy isint it brittle without tempering
dubphat 1 month ago
@dubphat It is good practice to temper but I don't usualy bother.
myfordboy 1 month ago
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.
c4fishfood 2 months ago
@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.
myfordboy 2 months ago
@myfordboy oil should be heated to 80 degrees (IIRC). At least special quenching oil.
Axbent 2 months ago
4:14 sorry for being immature.
Nanovirus5995 2 months ago 2
you have to cool more true of far too hot
vikes55555 2 months ago
aaah! warum alles trocken sägen und bohren?
bwrodczek 3 months ago
Would that be the same as using high tensile steel then hardening it in oil?
AZAKO80 3 months ago
@AZAKO80 Not realy. High tesion steel would be hard to machine. The gauge plate is like regular steel but can be hardened.
myfordboy 3 months ago
What material are you making that cutter out of?
AZAKO80 3 months ago
@AZAKO80 High carbon steel, sold as guage plate.
myfordboy 3 months ago
should really be using the cutting oil on the drills as well, that smoke is a BAD thing...
gibbo1112 3 months ago
@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.
myfordboy 3 months ago
@myfordboy wierd, the stuff i use never does that... it lubricates so well it just doesnt get hot
gibbo1112 3 months ago
Can you please provide more information about the button tool you made? What is a button tool? What is its cutting profile? How did you make it? If you have the time to point me toward more info on the internet, I'll be very grateful. In any case, thanks for your help!
TitusLivy777 5 months ago
@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.
myfordboy 5 months ago
@myfordboy Thanks again for providing such helpful info! Your YouTube 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!
TitusLivy777 5 months ago
Like running fast dont you? lol.
sammorgan31 5 months ago
your video rocks i love it i am a machinist and totally love making stuff, are you on facebook ?
doommaster9000 5 months ago
@doommaster9000 Sorry not on facebook but I have a blog. myfordboy.blogspot.com
myfordboy 5 months ago
@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.
dan10400 7 months ago
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.
dan10400 7 months ago
@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?
myfordboy 7 months ago
One word, oil..
paintballingguy 8 months ago 31
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.
Morkvonork 9 months ago
@Morkvonork I don't belive the dimentions change with hardening.
myfordboy 9 months ago
cool!
johnnywackercracker 9 months ago
That's the way I harden the tips of my punches, except I use light tool oil.
douro20 9 months ago
Ahhhh! less speed more feed!
colt4547 10 months ago 2
Dude, that screaming noise is your HSS tools screaming for COOLANT!! Nice vid gets you another thumbs up! Thanks for posting.
popnstart 11 months ago 2
Fantastic tutorial on how to make a gear cutter. Keep up the great work.
petsatcom 11 months ago
was that asbestos
PLUSHAIRPLANECARPET 1 year ago
@PLUSHAIRPLANECARPET No ,ceramic material.
myfordboy 1 year ago
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.
myfordboy 1 year ago
Your hacksaw looks very much like a Kennedy Hexacut but I see from your comments that you designed and made it yourself. Do you have any drawings available? I'd love to make something like this, very compact and practical.
littlestworkshop 1 year ago
that lil ML10 has some torque! What gear did u do the drilling with? Must say the tool changes are awsomely quick too! (nice "special effect!) ;) Your hardening practices needs some more sophistication though! Judging colours of heat in daylight is impossible, and motor oil is not a good quench media, use veggie oil, suspend the part in a wire and stir i around, use much larger vessel. But what you did works OK, but prolly less so for a part with more irregular form.
Axbent 1 year ago
This has been flagged as spam show
I really enjoyed this video
harleyghost 1 year ago
If you were going to put the cutter in an eccentric arbor, wouldn't it have been easier to grind a single point tool and cut the teeth with that?
zeedee21 1 year ago
@zeedee21 The advatage of the method I used is an accurate profile can be made on the cutter.
myfordboy 1 year ago
Hei master, very instructive ...Thank you for sharing, your work is very precious... see next video... Salut
jairogj 1 year ago
I am in awe, very fine craftmanship.
pansartekniker 1 year ago
What material did you make the cutter from?
quatfro 1 year ago
@quatfro Gauge plate i.e. oil hardening tool steel
myfordboy 1 year ago
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. :)
barumman 1 year ago
I've watched your videos in the past and it's clear to me you know what you're doing, far better than I do. I was curious why I didn't see you use cutting fluid until you used the boring bar. Was that just edited out of the video? Glad to see another video from you. Take care.
gblpst81 1 year ago
@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!
myfordboy 1 year ago
@myfordboy I hope I didn't offend with my question. I did notice the smoke but thought maybe it was just from residual oil on the drill. So there's no mistake, I have GREAT respect for what you do. It's amazing to me. The fact that you not only machine your own parts and make some of your tools from scratch, but you also cast your own complex aluminium parts. I look forward to your future videos.
gblpst81 1 year ago
@gblpst81 No offence taken. Very observant of you to spot it !
myfordboy 1 year ago
What was that white matting you used when you did the heat treatment?
Xraller 1 year ago
@Xraller Its a ceramic heat reflecting material. Kaowool or simular.
myfordboy 1 year ago
how is this involute?
Grousuba 1 year ago
@Grousuba Ivolute refers to the tooth form the cutter will make.
myfordboy 1 year ago
@myfordboy I understand that.
The tooth profile this cutter would generate would be circular not involute.
Grousuba 1 year ago
@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.
myfordboy 1 year ago
@myfordboy cool! Thanks!
Grousuba 1 year ago
Olive Oil has very high Carbon content for carburizing steal its what i use for Drill Fixtures! it is second to peach pits
very nice work by the way
theylive1984rm 1 year ago
Very nice! What is the eccentric offset, please.
Looking forward the the cutting operation.
apowellz 1 year ago
@apowellz In order to give clearance to the tool it is not rotated about its own centre but is offset in its arbour.
myfordboy 1 year ago
@myfordboy I understand. What is the offset on the arbor, or does it really matter just so there is clearance for the cutter point? Thanks for the reply.
apowellz 1 year ago
@apowellz I used an offset of 1/4". Not too critical.
myfordboy 1 year ago
Great video as always - a joy to watch - i also love your power Hacksaw thats cool
dioramajue 1 year ago
Awesome video, can't wait for the next one!
willfrost 1 year ago
Gret stuff, can't wait for the gear cutting video :)
jozafax 1 year ago
Could you show me how you made your saw. I like the cutter but would love to have a saw like that!
timothysvec 1 year ago
did you skip the annealing?
Isn't the cutter to brittle?
Nice maching though, funny saw did you make it yourself?
erklaerbaer01 1 year ago
@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.
myfordboy 1 year ago
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.
steamwally 1 year ago