I like your teaching style. Easy to understand. I have a 2" square steel rack 12" long with a DP4 and AP of 14.5 degrees (big teeth). I want to machine a steel spur gear for the pinion to lift and lower <100 lbs by crank. What is the smallest workable diameter gear I can make. Since I do not plan on buying an expensive gear cutter for just one gear, I am going to single point cut this on a lathe arbor/mandrel. Looking forward to more videos from you. Thank you.
Outstanding video, excellent diction from the narrator, great shop tools! In a world where everything's CNC these days, it's nice to see how it's done by hand.
next thing i need to know is how do you set the height of the cutter. i understand that it should cut dead center. thanks. hoping for your helpful reply. :)
I enjoyed the video...I'm getting more into machining now due to my welding. I put a lot into precision work...it's not enough for me to be a good welder...it's about taking my welding abilities to the next level. My welding partner in prison showed me how welding & machining are related & because of that I've built some awesome trailers without buying axles...I made them.
because i am doing an engine/transmission swap on my Jeep and there are some parts that don't fit, so i am looking on the web to see how parts are made.
Sorry for my ignorance but after the key way was cut the alien head hole was taped. What machine was used ? kinda looked like part of a drill press ?
I liked the idea of almost perfect alignment.
I cut a few gears back in 73 while in college, And watching this video reminded me of those days, Head swimming,scared of missing a step,=Bad grade :)
Thanks to all of the commentators to ,
It is nice to read comments that are not full of bickering and trash.
@EarlRausch Ya he tapped it using the drillpress. Drill the hole. insert tap into chuck and turn the spindle (or pulley on top) by hand. As long as you remember to break the burr every 3 turns, youll never break a tap
CNC machinist of 5 years here, this is an awesome video. I'm learning the old ways so I can do hobby machining on surplus manual machines. Stuff like this is a great help!
Good stuff. Reminds of the days when I was an apprentice. Making gears was always frustrating when you had to do the math all by yourself. Luckily technology advances. I remember when I first tried a CNC lathe. First proper thing I made was a conical bolt with 3 threads, something that would take ages in a manual lathe, took me 30min or so from starting to program until the bolt was done.
I love the old school stuff. All the war equipment in ww2 was made on manual machines back in the old days, blows my mind that such tight tolerances could be kept before calulaters and modern measuring tools.
You can set the cutter height with a height gage. I used to blue the blank and scribe the teeth with a height gage before making the cuts and mark the perimeter of the plate with a sharpie so not to lose arm postion for multiple runs.
Impressive! I Started out in a small family job shop and cut gears in this same manner. It's like reading heiroglyphics until you get the hang of it...and DON'T lose your place on the indexing head. I'd move the cutter farther up on the arbor to get a more ridgid setup, less chatter, smoother finish.
Great vid! I think we'd love to see how you put the CL of the cutter on the CL of the mandrel and how you determined the tooth depth. It looked like only one cut per tooth, no finishing cut.
I would bring the blade down to the top of the material, zero my encoder, then bring it below the material and come up till it touched the bottom, record that number, divide it by two, and go to that value.
But then, my machine has an automated probing system, so I don't need to do all that. ;)
Nice to see video from people who know what they are doing.
Don't loose count.....or forget to advance the sector pointer. I always get nervous as I come back to the first cut. Will it cut anything? or am I recutting the same tooth exactly?
I can never work the dividing head THAT FAST! WOW!
If you mean cutting fluid, it's because he's working brass. Brass is a very easy to machine metal, and you generally don't need any sort of cutting fluid.
Excelent video. Too bad the opportunities to develope and attain your level of skill and knowledge are so few these days. There are still many young folks out there that would love to learn these types of skills if given the chance.
To the machinist in teh video. I gotta ask, since I don't know if I am a newbie or a pro as a machinist. How long did set up time take you for all those procedures? How long did cutting time per piece take?
I'm a Machinist by hobby, started at 20, doing it 4 years. I love it! Nothing like being able to make your own parts. We need more people to get into the metalworking trades, so it doesn't become a lost art.
It is truly an art form, I wish i had the setup/tools. the ones at harbor Freight Tool are junk, machining is a dying art we are losing to the Chineese, they are reverse engineering all of our stuff and building it cheaper. I don't know any body younger than 40 something that is a machinist.....
I'm also a machinst, at least a hobby machinist. My current job is as a computer engineer at a swedish tooling company called Sandvik. We make cutters for lathes and milling machines. However I'm going to start my own company in a couple of years, but in my case it's not the machinist engineering that I like. I like the programming and the fact that most machines today is automated with CNC. It would be really cool to build a robotcell that manufactured stuff... :)
Great video. I have the same model dividing head, and I love it. Gotta get a keyway broach, though. Couple questions:
1. When calculating diameter of the blank, why add 2 to the # of teeth?
2. When you calc the depth of cut, where does the figure 2.157 come from? Is this determined by the PA or DP, or is it some kind of constant? Handy trick: The threads on the nose of the div head are the same as my lathe, so I can use the collet chuck or the 4 jaw in the dividing head, too.
These formulas for gear cutting can be found in Machinerys Handbook if you enjoy doing lots of math. Adding 2 teeth is part of the calculation. 2.157 is a constant that is divided by the diametrical pitch to determine cutting depth. Glad you enjoyed the video.
Just an ordinary 3 jaw chuck to hold the brass blank and centers are used so the gear blank can be transfered on a mandrel from the lathe to the mill.
Very well done.
memadmax69 2 weeks ago
Cool
Goerletz 2 weeks ago
i learned in 5 minutes something my lecturer was trying to teach me in one semester
PHY104 2 weeks ago
that is a big ass piece of brass.
stevenmorookian16 2 months ago
best gear machining video..
0016bLitz 4 months ago
I like your teaching style. Easy to understand. I have a 2" square steel rack 12" long with a DP4 and AP of 14.5 degrees (big teeth). I want to machine a steel spur gear for the pinion to lift and lower <100 lbs by crank. What is the smallest workable diameter gear I can make. Since I do not plan on buying an expensive gear cutter for just one gear, I am going to single point cut this on a lathe arbor/mandrel. Looking forward to more videos from you. Thank you.
algae1000 5 months ago in playlist More videos from grantham418
clever man love the vid :) music is good to :)
baldfatgit1 8 months ago
really thnks
engAymanelsayed 8 months ago
Outstanding video, excellent diction from the narrator, great shop tools! In a world where everything's CNC these days, it's nice to see how it's done by hand.
JRoque250 9 months ago
Can I make a bevel gear with the same machine and tools?
bijibijmak 9 months ago
Hello, nice video! But I have a question, which is the hub and shaft diameter of the spur gear?
clauparey 9 months ago
next thing i need to know is how do you set the height of the cutter. i understand that it should cut dead center. thanks. hoping for your helpful reply. :)
bjlibrero 10 months ago
What do you say..a 3 16th inch broach??>> can you please tell me what you said in that part. cant understand it
xXGNOMEKINGXx 11 months ago
3/16 inch broach
grantham418 11 months ago 5
@xXGNOMEKINGXx When he was cutting the bar in the saw he said 360 Brass, the material designation.
Doggitter 8 months ago
Nicely done! Thanks for sharing that with us.
themainproblem 1 year ago
I'd be so worried about screwing it up...
randommagnum 1 year ago
I enjoyed the video...I'm getting more into machining now due to my welding. I put a lot into precision work...it's not enough for me to be a good welder...it's about taking my welding abilities to the next level. My welding partner in prison showed me how welding & machining are related & because of that I've built some awesome trailers without buying axles...I made them.
HawaiianMachinist 1 year ago
Nice job...
aametalmaster 1 year ago
great video !!! i know nothing about machining.
because i am doing an engine/transmission swap on my Jeep and there are some parts that don't fit, so i am looking on the web to see how parts are made.
this video shows exactly what i need.
thanks again.
waynekhue 1 year ago
Thank you for the video !.
Sorry for my ignorance but after the key way was cut the alien head hole was taped. What machine was used ? kinda looked like part of a drill press ?
I liked the idea of almost perfect alignment.
I cut a few gears back in 73 while in college, And watching this video reminded me of those days, Head swimming,scared of missing a step,=Bad grade :)
Thanks to all of the commentators to ,
It is nice to read comments that are not full of bickering and trash.
EarlRausch 1 year ago
@EarlRausch Ya he tapped it using the drillpress. Drill the hole. insert tap into chuck and turn the spindle (or pulley on top) by hand. As long as you remember to break the burr every 3 turns, youll never break a tap
TheRetiredtrucker 7 months ago
Great video. Thank you for posting.
SpeedOfDark186Kmps 1 year ago
CNC machinist of 5 years here, this is an awesome video. I'm learning the old ways so I can do hobby machining on surplus manual machines. Stuff like this is a great help!
redramage 1 year ago
Ahhh, good ol' reamers... back in the day, they were all the rage.... but i still never used one other than school lol.
IH8WRONGPPL 1 year ago
Real American knowhow here. Love it!
flatl1n3 1 year ago
Good stuff. Reminds of the days when I was an apprentice. Making gears was always frustrating when you had to do the math all by yourself. Luckily technology advances. I remember when I first tried a CNC lathe. First proper thing I made was a conical bolt with 3 threads, something that would take ages in a manual lathe, took me 30min or so from starting to program until the bolt was done.
Perius 1 year ago
How do you match the height of the gear tooth cutter with the blank?
ryobiguy 1 year ago
I love the old school stuff. All the war equipment in ww2 was made on manual machines back in the old days, blows my mind that such tight tolerances could be kept before calulaters and modern measuring tools.
daypass69 1 year ago
Very good video. Thank you!
rmille261 1 year ago
Very informative, I have just started to make parts in a machine shop. Thanks for making the video.
travissn 1 year ago
Just wondering, but could the mandrel be held in a 5c collet indexer instead of the center with holder? Or were you cutting the teeth at an angle???
I have a lathe, and a similar mill on order but I am extremely slow at figuring out setup, and anything past basic math is quite a challenge for me.
john0270 1 year ago
Really nice vid. Good job.
realjoefriday 2 years ago
Thank you so much for talking and telling us what you are doing!!!!!
AMSroadrunner 2 years ago 10
pleas pleas pleas tell me what's the music between 3:23 and 4:46!
wurft 2 years ago
Bumble Boogie based on the Flight of the Bumblebee which is pretty impressive to hear played by The Canadian Brass on the tuba!
macshout 2 years ago
THXXXX
wurft 2 years ago
You can set the cutter height with a height gage. I used to blue the blank and scribe the teeth with a height gage before making the cuts and mark the perimeter of the plate with a sharpie so not to lose arm postion for multiple runs.
seezthedaze 2 years ago
Impressive! I Started out in a small family job shop and cut gears in this same manner. It's like reading heiroglyphics until you get the hang of it...and DON'T lose your place on the indexing head. I'd move the cutter farther up on the arbor to get a more ridgid setup, less chatter, smoother finish.
ridemyrice 2 years ago
Great vid! I think we'd love to see how you put the CL of the cutter on the CL of the mandrel and how you determined the tooth depth. It looked like only one cut per tooth, no finishing cut.
BlakeMason2 2 years ago 2
nice work.. any tips for setting the involute cutter up on center height to the blank/mandrel?
srmaietta 2 years ago
I would bring the blade down to the top of the material, zero my encoder, then bring it below the material and come up till it touched the bottom, record that number, divide it by two, and go to that value.
But then, my machine has an automated probing system, so I don't need to do all that. ;)
-Taylor
facegarden 2 years ago
gear cutting.... its a huge pain until you understand it
then its not so bad :)
turtlemann14 2 years ago
Nice to see video from people who know what they are doing.
Don't loose count.....or forget to advance the sector pointer. I always get nervous as I come back to the first cut. Will it cut anything? or am I recutting the same tooth exactly?
I can never work the dividing head THAT FAST! WOW!
YTerer4174 2 years ago
Nice music to from 8:20.
Pretty good for this kind of speed!!!!
freddy9867 2 years ago
Fantastic video! Thank you very much for posting!
LorianaVixen 2 years ago
I love these videos - always wanted to get into machining but lack the space and time. Definitely a future endeavor though :)
adisharr 2 years ago 2
hahaha .. brings back memories of machining school. :) Havent used conventional machine tools in a long time though :/
Izekat 2 years ago
all the tools, the greatest cause for envy for a man...
cairun 3 years ago
How come no cutting was used? Thanks.
spitgalore 3 years ago
If you mean cutting fluid, it's because he's working brass. Brass is a very easy to machine metal, and you generally don't need any sort of cutting fluid.
ElQuesoGuapo 3 years ago
Aww, you have all the toys
TheLightningStalker 3 years ago
NICE!!!
That's fast. From 3:18 is it really fast!
I want that I can work that fast!!!
frits2345 3 years ago
Me too!
freddy9867 2 years ago
Can you this video with the size of the material and calculations he make in Millimeter and not inches?
This is for me more easy to understand what has to be done to machine a gear.
frits2345 3 years ago
He is a real machinist. today everybody call themselves machinist but most of them they only now how to push a bottom.
CUBITO71 3 years ago
Correct!
frits2345 3 years ago
dang that must of taken hrs to develope one gear
struckmand 3 years ago
Excelent video. Too bad the opportunities to develope and attain your level of skill and knowledge are so few these days. There are still many young folks out there that would love to learn these types of skills if given the chance.
spidersinspace 3 years ago
that's just not true. everyone can learn now and equipment is cheaper than ever
DanFrederiksen 3 years ago
Great video!
5*
tmechatronik 3 years ago
Great for learning your video.
DoD511 3 years ago
...impressive work - and where can i get that melody :-)
Kosekans 3 years ago
Bumble Boogie, B. Bumble and the Stingers
jodhner 3 years ago
great video!!!
AnimeCrisis 3 years ago
To the machinist in teh video. I gotta ask, since I don't know if I am a newbie or a pro as a machinist. How long did set up time take you for all those procedures? How long did cutting time per piece take?
Shombroni 3 years ago 4
From start to finish took about an hour.
grantham418 3 years ago
is the machine still set-up to make a spul gear? i need a gear made!
rjhigg 3 years ago
Who leaves a machine set up for over a year?
icantdrive65 3 years ago
About one hour?
I used to make a gear two days.
Except my gear had 60 teeth.
trein45 3 years ago
Loved it! Great video!
hettygreene 3 years ago
Great video master.. thanks since Peru
florgolosa 3 years ago
exelent demostration
vikthor2007 3 years ago
I'm a Machinist by hobby, started at 20, doing it 4 years. I love it! Nothing like being able to make your own parts. We need more people to get into the metalworking trades, so it doesn't become a lost art.
123PSI 3 years ago 10
i wouldn't worry about that...the world will always need machinists
joesabourin11 3 years ago
@123PSI well i'm 18 year's old started welding at the age of 9 I'm going to join local 798 pipeliners union when i'm 20 year's old.
798unionpipeliner 2 weeks ago
Great clip. I am making spur, bevel and helical gears in school. this was nice to look at and I'll show it to my classmates.
sandisangel 3 years ago
It is truly an art form, I wish i had the setup/tools. the ones at harbor Freight Tool are junk, machining is a dying art we are losing to the Chineese, they are reverse engineering all of our stuff and building it cheaper. I don't know any body younger than 40 something that is a machinist.....
TheDieselDr 3 years ago
I'm a machinist and I'm 26! I dry hob like a dirty mother. I love it wouldn't trade it for any job. I agree, more young guys need to get into it.
tylerkb12 3 years ago
I'm also a machinst, at least a hobby machinist. My current job is as a computer engineer at a swedish tooling company called Sandvik. We make cutters for lathes and milling machines. However I'm going to start my own company in a couple of years, but in my case it's not the machinist engineering that I like. I like the programming and the fact that most machines today is automated with CNC. It would be really cool to build a robotcell that manufactured stuff... :)
telle80 3 years ago
Brilliant - Thankyou !
calsonick 3 years ago
thanks for help!
tudor8239 3 years ago
Very informative and interesting video! I at least have an inside look on how to do it now! thanks!
olds442power 3 years ago
5 star video.
Informative and interesting to watch.
Tarzbloke 3 years ago
neat shop, Just be happy you don't have to hob 400 to 800 parts per day, gets old
hobguy79 3 years ago
Whats that piece of music over the last part of the video?
nofalloff 3 years ago
Part of Bumble Boogie
grantham418 3 years ago
Not only a very skilful and interesting process but well shot and edited also thank you very much for this film
johnrussellpatrick 3 years ago
Great video. I have the same model dividing head, and I love it. Gotta get a keyway broach, though. Couple questions:
1. When calculating diameter of the blank, why add 2 to the # of teeth?
2. When you calc the depth of cut, where does the figure 2.157 come from? Is this determined by the PA or DP, or is it some kind of constant? Handy trick: The threads on the nose of the div head are the same as my lathe, so I can use the collet chuck or the 4 jaw in the dividing head, too.
wires99 4 years ago
These formulas for gear cutting can be found in Machinerys Handbook if you enjoy doing lots of math. Adding 2 teeth is part of the calculation. 2.157 is a constant that is divided by the diametrical pitch to determine cutting depth. Glad you enjoyed the video.
grantham418 4 years ago
finally!!! now THIS is what you tube SHOULD be used for!!! thanks man! great vid!
pulppeeler 4 years ago 3
great video man thanks
leaghtristan 4 years ago
are you using a spider in the lathe
yorn143 4 years ago
Just an ordinary 3 jaw chuck to hold the brass blank and centers are used so the gear blank can be transfered on a mandrel from the lathe to the mill.
grantham418 4 years ago
I really appreciate you sharing this with us amateurs.
- Jimdz
YodasFishing 4 years ago
So do I! This was very helpful.
Do you mind sharing the name of that tap holder you used? Looks very useful.
Spinnygrass 4 years ago
very good...more of the same, but nxt time show us the end result!!!
glinner81 4 years ago
Picked up a dividing head with my lathe, great motivation, your video is much appreciated.
sawracer 4 years ago
Perfect! now I have more projects in front of me before I make a gear. Ok, so now to find the design for a dividing head.
ikeeickholdt 4 years ago
You dont see the use of a dividing head with a index plate much more these days.
james1614 4 years ago
Great Video Thanks
craigmack211 4 years ago
Good video ... I got a kick out of the speed up and music background ...
chemcammando 4 years ago
Very good video. I haven't seen many showing the use of a dividing head.
soverton 4 years ago
Nice video, When are you going metric?
cosast54 4 years ago
sum neat machinery
Contw2 4 years ago