SHOP TIPS

www.mrpete222.com/
Be sure and watch all 11 videos on the topics of dividing heads & gear cutting.

[@h2ocommuter]

Thanks Pete, I truly appreciate your clarity. It seems I have a terrible job ahead of me. I need to build a 1*1 bidirectional multi-gear assembly. It is totally in my head at this point so it looks like I better get out the paper for this concept to become real. Lots of thinking ahead of me. I'll have to look into your other videos to see if there is something I can use.

[@oliverehmann1879]

You're a very skilled gentleman Mrpete.

[@mrpete222]

+Oliver Ehmann thanks for watching

[@TheMadManPlace]

ARE YOU KIDDING? KNOW that at least one viewer IS ACTUALLY GOING TO DO THIS !!! I have to make up all the gears in the feed gearbox on a small Colchester lathe I recently bought. It came from a school where pupils used the boot to change gears on the feed gearbox, broke one of the selectors (which left it in a gear) and then put it into all the other gears using the other selector (and of course the boot). You know what engaging 2 gears at the same time WHILE IN MOTION does to a gearbox? Thats right - it strips all the gears (especially when the machine is running and a student a$$hole kicks it into gear) and now all that is left is a bunch of gears with no teeth. Then all the broken teeth damaged all the other teeth - a nice mess. The guy I bought it from told me "the feed box is full of gums" - he was right, NO TEETH, just stubs but I think there are enough remains to figure out what they were. I also have a small Chinese "Lathe/Mill" and fortunately a small dividing head (brand new WITH all the plates) as well so I will be doing it on that but as I am a pensioner and do not have the funds to buy the cutters I will need so I will have to use the method you demonstrated in the rack cutting video (fly cutter with single tool steel cutter) Here is a question : How do I sharpen/profile a toolsteel tool tool at home with VERY limited resources? Any suggestions? I will probably have to make up some tools (keysteel with a tungsten slug braised onto it) and if I can find the appropriate profile gauges, do it by hand or get them professionally profiled and sharpened and work VERY CAREFULLY with them. To be honest, if the end result is a gearbox that is somewhat noisy then that is fine, as long as each gear tooth is equally noisy then it should not affect the work piece that is being cut (thread or whatever) afterwards. The gearbox is not "high speed" nor is it a very hard working (high forces being transmitted) environment it lives in so I think that it is totally do-able. The price of tooling here (Johannesburg, South Africa) is ridiculously high and buying online the shipping costs are anything up to 10 times the purchase price, sometimes more, so "going old school" is the only way. I am a qualified artisan (automotive machinist and fitter, fitter and turner, millwright) but have not worked in the trade for over 30 years and am therefore somewhat rusty but when I am watching your videos, every one has at lest one "Oh Yes, I remember that" moment. So do not think that your videos are simply "entertainment" - reading some of the comments I see that you are influencing younger people in their career choices and that is a very good thing - otherwise the trade and all the knowledge gets lost forever - NOT GOOD for humanity. Great videos and please keep them coming and all the best to you.

[@XTL_prime]

I already ordered a couple of cutters and I'm certainly going to try.

[@mrpete222]

Thanks for watching-awesome

[@XTL_prime]

Now I have a few cutters, made an arbor and cut some teeth. It was a random scrap of Nylon so the dimensions aren't correct and it doesn't mesh correctly, but I can probably cut gears now. I'll have to improve the arbor and get some more stock and maybe I'll get to make some that work.

[@mrpete222]

Thats great

[@ClownWhisper]

@@mrpete222 yes I don't think that I think you about that fly cutter idea either I did that for repairing a bull gear and it worked perfectly. I did it a little unconventionally I milled a slot where the three broken teeth were took a pizza cast iron and shaped it perfectly to match the original diameter and brazed it into place. I did not have the dividing head at that time so I put it in a spin indexer and in a CAD program recreated the exact layout of the gear include it on to the side of the gear so it lined up with all the existing teeth. Then I just matched up the fly cutter exactly with the printed template and cut the teeth and it worked absolutely perfectly other than the breeze wine you cannot tell the difference it is absolutely flawless. It just goes to show you when there is a will there is a way. It may not be a perfect solution but if it gets you going it is a good solution. And I owe it all to you. I know I've probably told you this before but I am badly disabled when I say badly I mean it. I'm also getting on in years so what's up this Hobby I would be sitting staring at a TV day in and day out and showing no productivity at all which is the death of anyone. I recently had to sell my hardinge lathe after I got it tooled up to the max! I even had a nice threading head with every chaser known to man. Unfortunately I had no choice I needed the money. Being disabled does not pay much LOL now I'm looking for a nice big leblond or other Gear Head lathe so I can get back to my hobby of making Cannon. I got off track this was supposed to be a simple thank you for your efforts Mister Pete! As far as I'm concerned you are directly responsible for me still being alive and having a small measure of happiness in my life

[@DavidHerscher]

Point of interest here, from the future lol. If you're buying cheap chinesium gear cutters like myself, they normally have the numbering system backwards. Meaning, a chinese DP16 14-1/2PA number 1 cutter will cut a 12 to 13 tooth gear, and so on. I don't know why this is the case, but i've found it to be true 100% percent of the time in my experience, which is very limited, but there you have it.

[@mrpete222]

Thanks

[@ClownWhisper]

I know this is a stupid question but I'm finally getting around to doing this tomorrow so I noticed there's nine spaces in your 48 hole circle between dividing arms. So is that mean it's 9:00 because the first one is your first cut and then you move eight more and advance the arms?. I know this will be obvious to a lot of people but I'm very nervous

[@iamthetinkerman]

I really enjoyed watching that, thanks!

[@almeyer405]

Hi MrPete, Love your videos, Wish I had you as a shop teacher back in the early 70's when I was in High school. I do have a question, How did you determine a 14 1/2 degree P.A. as opposed to a 20 degree?

[@almeyer405]

Al Meyer Anyone?

[@dolf92]

Al Meyer good question, i would like to know mybe i am a little slow. back in the 1970,s i did very little lathe work. i remenber making ashtrays brazing. tanks for asking question

[@xull1x123]

Very well thought out video. Thank you

[@mrpete222]

Zeeshan Munir Thanks for watching

[@2geclipsegsx]

Can you make me some change gears for my victor lathe? Thanks let me know

[@mrpete222]

Sorry

[@johndoyle4723]

Many thanks, very interesting. Joke, A Yorkshireman on an exchange visit to a German machine shop,.. The German host describes how the machine is accurate to within 1000th of a millimetre, the Yorkshireman replies," That would be no good back home, we need to be spot on" I am sure the joke would translate to various US states,obviously in Thousandths of an inch.

[@paulinmt2185]

It was a great joke. Had me laughing all afternoon!

[@fredflintstone8048]

We convert Metric jokes to Imperial jokes all the time by simply multiplying them by 25.4, and back the other way by dividing them by 25.4

[@MarkleZephire]

Thank you for taking the time to share your impressive skill set and knowledge. I don't come from any machining/engineering background (none in my family either) but I find all this stuff fascinating and maybe one day I'll come to own my own small metal workshop and start learning how to do metal work.

[@SasquaPlatypus]

God bless you shop teachers... You all have a lot more patience than I do, and I think your classes save lives when it comes to giving kids an option besides a four year degree, or a dead end minimum wage job. Great vids, BTW.

[@donstor1]

Mr. Pete, you were born to teach. I notice that you repeat the names of all the parts as you explain the process so people learn the names at the same time. You show the importance of math also. We used to ask “why do we need to know all this math when we won’t use it”. I really enjoy watching you teach and I wonder how many thousands of young men learned how to make and fix things sitting in your classroom/shop at school. Keep it up!

[@mrpete222]

Thank you for noticing, and appreciating some of the things I try so hard to do

[@Orcinus24x5]

Mr. Pete, I mean no disrespect, but isn't 660 RPM way too fast for that cutter in steel? Mild steel should be cut around 100 SFPM or so, and with a cutter of 2.5" in diameter, that should be about 150 RPM. Or am I missing something?

[@sevenninthsfabmachine]

That's the number my quick math check arrived at as well. Still, a good video on gear-cutting Mr Pete.. added it to my Favorites.

[@Lasurge1982]

It’s my dream to one day be able to do this with no problem

[@aintgonnahappen]

Better than an episode of friends any day Mr. Pete! Thanks for the upload.

[@mrpete222]

aintgonnahappen Thanks for watching

[@briantaylor9266]

Wikipedia: Semi-steel casting is a lower cost method to produce a casting that is not quite as strong as a steel casting but less expensive to manufacture. It was used more commonly as a marketing term. The carbon and silicon percentages are reduced to the amount approximately consistent with those in steel. This is done using pig iron or gray iron casting scrap and reducing the amount of carbon through the addition of relatively pure steel or wrought iron scrap in a well heated cupola furnace. The percentage of carbon is typically between foundry cast iron and wrought iron.

[@mrpete222]

Brian Taylor Thanks for watching

[@keith73z28]

Brian Taylor Thank you Brian.

[@rlewis1946]

Brian Taylor - Thanks for this information. I would like to ask Scott Logan about his memories of his Dad’s (Logan Lathe’s) gear manufacturing, back in the day, from casting to final milling. I guess I’m just an old industrial history nut. Roy Lewis 1946 Logan 825 10” Lathe See. No. 34503

[@melgross]

I don’t know if someone has already commented on this, but semi steel is indeed cast iron. But there’s a twist. They throw some steel scrap into the mix. That was how it was made back in the old days. More recently, instead of the random way they used to do it, it’s more regularized, though not standardized. Operationally, it’s not much different from cast iron. But it has a bit finer grain, and is a bit more ductile. Just think of it as cast iron, between grey and ductile.

[@johnbazaar8440]

Yep, that's us. $10,000 worth of equipment to make a $50.00 gear so we can use the $10,000 worth of equipment to fix the $300.00 lawnmower. Thanks, Mr Pete, for the video and the humor. John

[@newstart49]

John Bazaar Ha Ha- suckers. I only spent $9,997.79! Ya gotta know how to haggle! :) The best video I've seen yet on this subject!!

[@dizzolve]

I need to learn how to find those auctions ........ I have no idea

[@henryostman5740]

Having a $300 lawnmower that works is better than having a $300 pile of junk that takes up space.

[@leebarnhart831]

I have made gears and found this video very helpful. Thanks for the help! You're fun to watch. I'd like to boast I've watched all your videos but I figured out if I watched 24 hours a day it would take way too long to watch them all in what's left of my life.

[@mrpete222]

lol

[@williamvaughn9870]

I have a montgomery wards 04tlc-700a that rattles something bad when running, what would you think it is. The rattle is coming from head stock at the bull gear.

[@HangarQueen]

I realize that this is a 7+ year old video (and I really enjoyed it), but at the 32 minute mark, where you're all finished cutting the gear and then remove the lathe dog and then the mandrel I wondered WHY?! I thought for sure you'd be taking the assembly back over to the lathe to do a final skim pass (and chamfer if you hadn't already) on both sides to clean them up. Seems that would be easier prettier than the belt sanding you suggest in the video, no? But again, I really enjoyed the video, and subscribed quite a while ago.

[@sadoun1994]

you are just a good man and I like what you are doing to help someone like me who are trying to learn much more about this knowledge thank you and I appreciate your time and your passion..........

[@DavidSalvador-f2i]

Buenas tardes escribo desde Mexico tengo un torno IMOR 650 paralelo y se me dañaron dos engranes de la caja norton como puedo traducir al español este video gracias por su atencion.

[@danielf7055]

thanks very informative enjoyed watching

[@angelramos-2005]

It is very smart idea to mark the spaces with the sharppy marker for double check reason.Thank you.

[@deemstyle]

I've seen in a couple of your videos that you raise the knee on the Bridgeport rather than lowering the quill. I assume that you want to keep the quill as short as possible to reduce flex? Is that right?

[@mrpete222]

deemstyle Thanks for watching

[@Metallurg33]

Once again, wonderful video. A long - long time ago I worked in a foundry with a cupola in it. We made semi steel by replacing every fourth load of pig iron with carbon steel scrap. That brought the carbon down a bit & made the castings a little tougher.

[@mrpete222]

Metallurg33 Thanks for watching

[@mattbianchi4333]

fantastic video. I learned so much from this

[@mrpete222]

Thanks for watching.

[@dernolddodge]

Always informative and fun to watch!

[@charlessmith833]

Stripping all the gears in an old lathe in shop class is just the beginning of a career. Next we will work on stripping all the gears in our first car and go on from there. Lots of fun. Sooner or later we realize it is getting expensive for somebody and now that somebody is me. Now I'm full circle in my job as a machinist making gears to replace someone else's stripped gears. Ain't life funny? (Yeah, as long as somebody else is paying for it)

[@mrpete222]

lol

[@Junkboy888]

watched this video a few Times. One Day I will Make a gear lol. One day.

[@rockerpat1085]

I sure could use that gear!!! Just got one of these Logan 200 Lathes from the original owner and on of the extra gears is broken!!! Can you guess which one? You got it the 24 tooth!!! Lol!!! Keep Rocking it out!!!

[@mrpete222]

Yes

[@Capt1331]

Mr Pete...FYI Keith Fenner lives in Cape Cod Mass

[@shexdensmore]

I found a definition of semi-steel Semi-steel: Low-carbon cast iron produced by adding steel scrap to molten pig iron

[@mrpete222]

Thanks for watching.

[@63256325N]

Correction: Keith Fenner is in Cape Cod.

[@alliebarns]

Hello Mr. Pete, Do you know where i can get a good set of gear cutters affordably? There's plenty on ebay for $100 for the set of 8, shiped straight from china. I'm willing to setle asian tooling, I'm just greatful to own a Bridgeport. I really can't afford some of the american ones i've seen. All of the chinese gear cutters on ebay seem to be metric. The idea of doing conversions all the time sort of turns me off. Any good tips? I really enjoy your videos!

[@mrpete222]

Allison Dunn Thanks for watching. Ebay is your only option. Keep checking--sooner or later a set will show up.

[@SharkyMoto]

lyle i mean... i dont know if you read this but I own a mini lathe for 3 months now and i'm about to build a real milling machine... i got the head and the knee almost completed and now i need to make a drive to couple my 1 hp induction motor to the spindle. i really want to use gears since its the most exact and the method with that i can put all the torque into the spindle, now i watch your video and i hope that after that i can make a set of gears that will fit (not a rich guy sadly :D ) so maybe you become part of my homebrew machine :)

[@douglaspierce7031]

Semi-Steel is a casting method that is less expensive than casting regular steel. Is done by mixing grey or pig iron with regular steel to reduce the carbon content of the iron.

[@mrpete222]

Thanks

[@doughatman7846]

Vintage Machinery.org, is Keith Rucker's channel, oh well you beat me to it in the commentary.

[@mrpete222]

+Doug Hatman thanks for watching

[@Ray-de1cv]

Lyle, The 660 rpm you chose to run the 2.25" HS cutter in CR steel is Waaaaaay too fast. About 150 rpm is more like it, which figures to about 88 feet/min. Generally ordinary HSS can run between 60 to 90 FPM, and somewhat more with the free cutting steels (eg.12L14). Running the spindle at 660 rpm with a 2.25" cutter figures to 389 Ft/min. or more than 4 times faster than the 90 it should be running. When you see oil smoke spinning off the cutter, it's trying to tell you something. Smoke off the chips is fine though. Over speeding cutters will over heat the edges leading to rapid edge breakdown and more extensive regrinding.

[@RRINTHESHOP]

Nice job on the gear. Thanks for the review. Enjoyed. Thanks again. Randy

[@mrpete222]

Randy Richard Thanks for watching

[@ClownWhisper]

I've been looking for a mic like that for years I love it I might have seen it in one of your videos the first time and I've wanted one ever since as a matter of fact I think it was one of yours it's so easy to read and my eyes ain't what they used to be

[@mrpete222]

👍👍

[@douglasfurlong1]

do you rockwell harden the gears?

[@clermontgagnon8684]

Good day, If I am using a home made hob made out of steel, shape the tooth profile, harden it and then using a lathe, is it possible to use that same one to machine blanks with different diameters. Thank you very much for your advice.

[@ronaldrutledge1926]

The Logan manufacturing company that sells those gears believe me it's a lot more than $50 I need a few gears my self. And hard to find them on eBay I have found some things but I don't have everything tubal-cain has. But a very good video

[@CleaveMountaineering]

For those of us with an old lathe, missing a change gear, who don't have the mill, dividing head, or tooling, I have considered the following options... 1. Print out paper template, glue to steel, drill rough, hacksaw near line, file to the line 2. Grind HSS tool bit to the right shape, and manually run lathe like a shaper to cut each tooth (maybe combine with step 1 to reduce amount of metal to shape) - indexing with big paper template, locking spindle somehow... 3. Waterjet or laser cut? Not sure if this can go thick enough without taper effecting the cut, or file finish?

[@williammcbride134]

just curious but couldn't you also use a rotary table to cut that gear instead of a dividing head?

[@mrpete222]

William McBride I think so-never did it.

[@normanfeinberg9968]

Thank's again Mr.Pete.My shop is tiny,so all my projects are small,but I really enjoy your videos and am finding it's possible to teach an old dog(*me) new tricks in my retirement

[@GnosisMan50]

I bought a used logan lathe and needless to say the gears for threading, especially the small ones, are worn out. So, I have to make new ones. That's a lot of work. I was wondering if there was a different way to solve this problem by eliminating the gear box altogether and replace it with a programmed gear reduced stepper motor. Either that, or use thread chasers akin to those you see on hardinge lathes. Either approach would put less stress on the lather and eliminate the noise that comes with gears. By today's technology, the threading gear box is ancient. '

[@jcknives4162]

This is so very fascinating to me. thank you!!

[@mrpete222]

Jeff Conti Thanks for watching

[@brycecook4787]

when i was young and before i learned the right way to make gears i would trace a tooth from a gear .... hold a piece of paper to the tooth and make a rubbing with pencil or literally trace it... or xerox them.... i would cut the paper with a xacto glue to my blank then grind a cutter to fit with no light shining thru.... works great and i still do it that way unless i do not have a gear to copy

[@thecrouchmonster3515]

Judging from your "also known as" name, I suspect that you are traveling man? Have you done some traveling?

[@glennferris2326]

I was watching your video then all of a sudden the sound went so low it was inaudable. Is that on my cell or your. Side .lease let me know Mr Pete.thank you very much

[@opieshomeshop]

Im going to be doing it. Takisawa wants $450.00 per change gear for my lathe. Would end up being around 5 grand. Not sure WHY they want so much for their change gears.

[@mrpete222]

Wow

[@opieshomeshop]

@@mrpete222 Im learning a lot from you. Thanks for the videos. :)

[@josiahlevasseur4479]

Hey me Pete I just got a Logan lathe model 1400, I have no change gears for it and can’t find any would you sell me your extra set? Thanks

[@mrpete222]

I sold both of my Logans And all of the accessories

[@josiahlevasseur4479]

mrpete222 thanks anyway love your videos !

[@ronaldrutledge1926]

I have the Logan lathe I would love to have a bardons and Oliver turret lathe or Warner swasey 3 to a 5 I keep looking

[@rinklestiltskin]

Hello, Mr. Yiutubal. Can we guarantee that the cutter is symmetrical about its centre line?

[@RickRose]

Great video Mr. Pete. I am in fact assembling the bits and pieces to make my own $10K gears for my $500 lathes. It's a slow process. Whenever I get all the pieces together, I will refer back to this video. Thanks for posting.

[@mrpete222]

Rick Rose Thanks for watching

[@sharpeguns1]

I really wanted to see the broaching of the gear. I see them for sale every now and then.. I will be trying this.

[@sudheendranks1007]

I was searching for this to know the calculating tips of pitch and diameter.

[@michaeltaylor8084]

Thank you sir for your time and consideration . Mj

[@newstart49]

How would you set that gear cutter up on a smaller mill that has a MT2?

[@Jamesgamer88]

I think it would be interesting if you built a wood lathe from scratch and showed how to make the parts and how to assemble one

[@mrpete222]

+Jamesgamer88 Probably not, but thanks for watching

[@monkfry]

+mrpete222 haha, ohh boy, made my day

[@paulinmt2185]

Let's see. Watching a 5 year old vid, I've got a SBL born Dec, 1941, and that, and most of my tooling/fixturing is older than me (60+yrs). I'm lovin' me some Mr. Pete! Good stuff.

[@mrpete222]

👌👌

[@HemiRod23]

Your timing is excellent. A friend and I are preparing to make a gear for his Logan 820 lathe. We are building an electronic dividing head with a CNC stepper motor and Arduino controller. There are a number of these demonstrated on KZbin. Your videos are ALL fun for me to watch, but the gear cutting series has been particularly relevant. Don't think for a moment that your videos are only entertainment. They are truly educational and directly helpful. Thank you!

[@mrpete222]

HemiRod23 Thanks for watching

[@kamranehsan]

hi pete, need a lil help. i need to repair gear. and need to hold it in four jaws chak. but nt getting idea how to easily dial it on lathe . dear do u have any video or anything relevant...

[@mrpete222]

You will probaly have to use the indicator in the bore of the gear

[@kamranehsan]

The Gear is on the Shaft and is being already Repaired and only have reference left is top of the gear...

[@bulletproofpepper2]

Thanks for sharing !

[@kevCarrico]

sorry if i missed this, but why are you using a dog instead of going directly into the chuck on the indexing device for this procedure?

[@crookedriver2079]

Probably he feels a three jaw chuck will not run true as much as between center will. Chucks have a little runout usually. He wants that gear blank as near perfectly concentric to the center hole as he can, so he turns between centers. Same for cutting the teeth - trying to make it as accurate as possible.

[@kevCarrico]

+John ______ ahh... very cool... thank you!

[@pierresgarage2687]

Hi mrpete, Unless we specialize in gear cutting, it's not everyday I cut gears, so, every time I have to cut one, there is always the reading cession before the task... This is a super nice memory refreshment of the whole complete process... Thanks again, Pierre

[@pierresgarage2687]

pierre beaudry BTW, If it only cost you $10,000, to get fully tooled, tell me where to get such a great deal... lol

[@notsofresh8563]

pierre beaudry The 10,000 probably does not include the gas to go to every swap meet in the area to find the gear, Or the time to rebuild it when you get it......or the cost of buying things twice because the first used one was fubared.....

[@pierresgarage2687]

I know, I'm pretty well stocked and I can't tell how much I've spent so far, many, many times the $10k...

[@notsofresh8563]

We may be wrong here, i just checked my local craigslist and there is a K&T mill for 3000 vancouver.craigslist.ca/rds/hvo/4959522404.html As well as a single lot of what looks like EVERY gear cutter and some milling/slotting cutters for $2700 vancouver.craigslist.ca/rds/tls/4951415968.html So that is machine and cutters for 5700 Canadian. Dividing head and arbors shouldn't be 4500 bux.....

[@pierresgarage2687]

I'm in Canada, and I'm not dividing... If you want to see how little place there is and how packed it is, you're welcome to take a look at my channel. Cheers, Pierre

[@joebloe9901]

"Always count numbers out loud"...I thought I was the only one that does this. My boss thinks I'm weird but if you have to walk across the room or climb down a ladder and you have 3 guys in the room talking about beer and chicken wings then saying it out loud makes all the difference between a finished product or scrap. Obviously if it's really important I can write it down, but over the course of the day you can lose a lot of time drawing pictures and writing numbers... bosses don't like that. I love your videos, I have watched almost all of them, they are like "engineer porn". (LOL). I am building a lathe and I am almost done....I am waiting on my 5 inch chuck to come in the mail. Your videos have taught me a lot....mostly about thinking "smarter, not harder". Thank you!

[@mrpete222]

Thanks for watching.--glad you like. Yes, the counting sure works for me.

[@WAVETUBE84]

Very quick and concise process!

[@mrpete222]

WAVETUBE84 Thanks for watching

[@verdatum]

I did know (and love) Keith Rucker. Yet I didn't know about Keith Fenner. Thank you for that! KZbin, more than half of what I watch is related to manual-operated machinery. Is it really so hard to figure this out and actually recommend popular channels like this that I don't know about? Sorry, I'm ranting, please ignore me.

[@mrpete222]

verdatum Thanks for watching

[@Mazurat]

You’ve just earned my subscription! I have already purchased a Chinese mini lathe (for practice and I was only planning on making rings) and I’m already regretting it. It’s pretty much worthless and I should have stuck with my guns with the Buy once, cry once mentality and shelled out the extra cash for a good one. Watching this video just fired up that burning desire of “I want to do that!!!” I’ll be keeping my eyes peeled for a lathe/mill combo when I replenish the account and I’m not settling for anything but quality. I’m just imagining the possibilities already.

[@mrpete222]

Bigger is better

[@gordonburns6721]

We, in the UK went metric decades ago. I was apprenticed as a toolmaker in the late 60s and worked in thousandths of an inch. It's refreshing that I know exactly what you are talking about in terms of inches, rather than millimetres, although to be honest, I can now work in either system seamlessly. In those days we were in a transitional period in the UK, whereby the drawing office were still working in inches but translated dimensions into millimetres (mm) on the drawings. All the machines in the Tool Room machine section were old American (Bridgeport or Cincinnati) or British machines (Dean, Smith and Grace, Myford, Boxford, etc) and the indexing dials were all in imperial inches... so you see where I'm coming from here... 1) Draughtsman designs in Imperial inches then converts to metric mm (ISO) 2) Tool Room receives drawings in metric and is unable to use them in this state since none of the machinery handles mm ISO units. 3) All drawings go to the marking bench, to have them converted back into Imperial inches. 4) Sometimes things went slightly wrong - lost in translation! Thank you for speaking to me in inches!

[@mrpete222]

+Gordon Burns We went thru that here also. They called it a soft conversion.

[@danbreyfogle8486]

Hmmm, I don't have a Logan lathe, dividing head, mill, or any of the many other things that were used here. But I do have another bit of information packed in my brain to amaze and amuse my friends when I mention an involute cutter needed to make a gear for the Logan lathe. Great video Mr. Pete, if I did have all of the above I would be in my shop tomorrow morning to try my hand at it.

[@mrpete222]

👍👍

[@newstart49]

If I needed to make a 40T gear but don't have one to measure, would I just need to find the pitch of the gear it will be mating with, then formulate the diameter from there? My lathe is missing two 40T gears I need to set the speeds I want for mm threading.

[@mrpete222]

newstart49 Yes--there are formulas to find the dia.

[@Tryin2FlyII]

Great video I try and follow along 1-2 steps ahead to see if I get it correct on what and how the next step is done about 1/4 of the time I get it wrong lol but I am getting better! Looking forward to the next video and as always Thank you for taking the time- I really appreciate all that you do I have learned so much

[@mrpete222]

Rosario W Thanks for watching

[@johnbird8605]

Great videos as always! I'm making a set for my Harrison L5, just in the process of doing a 127T!

[@osterpenpen9379]

Random guess: "Semi-steel" may mean that it was cast iron which was then steeled. You can do things like let it bake in a pile of charcoal until the carbon penetrates the outer layers, making a hard layer of steel around the iron core. It's easy, cheap and probably much faster to do in bulk at the time. Of course, I could also be completely wrong.

[@mrpete222]

+Alex Osterman thanks for watching--could be

[@minutemarvels247]

Beautiful video Mr Pete! Thanks

[@mission772]

I enjoyed the video. Just one thought. after you find that you need 1/6th a turn on your turn wheel. you just need to find a plate that is dividable by 6. so a plate with 6, 12, 18, 24, 30, 36, etc

[@mrpete222]

+mission772 good- THANKS FOR WATCHING

[@jeffreymiller4624]

Hi mr pete, Well made video. The shop i work at we cut gears on a horizontal mill. Basically the same setup but the cutter is at the top of the gear blank. Thank you for the videos, even us guys you work in the machining trade can learn from you. Jeff Miller

[@mrpete222]

Jeffrey Miller Thanks for watching

[@matthewrose6221]

My Southbend has the same chart on the door?

[@mrpete222]

👍

[@mikemadsen2716]

Never under estimate the value of an great education base.

[@MrShobar]

I'd like to make some gears for a Logan that would allow metric threading through the quick-change gearbox.

[@mrpete222]

MrShobar Thanks for watching

[@ncut5547]

Just an awesome video lots of content perfect...have a question what would a person be looking for in a dividing head as you can buy some cheaper ones now a days appreciate your thoughts thank you ...keep up the good work

[@mrpete222]

Thank you for watching. I do not think it matters what brand of head that you buy

[@georgeharrod7805]

I have never used a lathe or milling machine but found your video very interesting to watch. Thank you for taking the time to explain these things that people like myself would almost certainly never see otherwise.

[@mrpete222]

Thanks for watching

[@notsofresh8563]

Hey Mrpete, How long do the batteries last in that digital mic?? lol It seems to me that our current electronic digital mics are a huge step backward from that mechanical digital set. After all, that starrett IS digital, as it shows you the answer in digits, not a vernier scale. The only things an electronic will do that the starrett won't is re-zero for comparison measurements, unless that is a feature you didn't show, and switch units of measure.

[@mrpete222]

Notso Fresh Batteries-not long if I forget to turn it off. It is a sep backward. I love my mech starrett mike. I only have digitals because i got them cheap at auctions. I DO like them for videos, so I can show my reading on camera.

[@notsofresh8563]

That's what i mean, That 216 starrett is even easier to read on video than the electronic ones, and the batteries never die. The electronic ones you have to have at the right angle to see it and not have glare on video. I think i might have to find me one myself. a little 1-2" like that. Off to trawl ebay...lets see what comes up in the net..

[@dolf92]

mrpete222 i am a retired aquaenginnering consultant currently having life saving surgery in germany. i would like to say mr pete that you are without a doubt the best machine teacher, you have been an inspiration to me and many others. tooling costs are relative to product produced every time. when i return to corrupt old uk i would like to subscribe to your channel. please mr pete keep up the astounding lectures and demonstrations. ps i do have a small machine shop but can only do 2 or 3 hours a week. fantastic master teacher.

[@mrpete222]

dolf92 Thanks for watching. Thats quite a complement. God bless you in your recovery. lyle

[@kevinhamling4675]

G'day Kevin here from Australia. being new to lathes and one of your subscribers l stumbled on another excellent video from you. A+

[@mrpete222]

thanks

[@johnnybarbar7435]

This is so much easier than my process of single point gear broaching on my lathe. You could single point broach the keyway on the mill or lathe with a HSS bit.

[@mrpete222]

Thanks for watching.

[@mikec.1259]

Hey Mr. Pete, Sounds a little crazy but I love that double ended adjustable Cresent wrench you used on your mill.

[@mrpete222]

Mike C. Thanks for watching

[@richardcooper38]

Just watch Keith Fenner make a similar gear. The first is very expensive but the second one is almost free. Thanks for the videos!

[@mrpete222]

Thanks for watching

[@4437dags]

Entertaining, Yes. Educational definitely. thanks so much for your efforts Mr. Pete

[@mrpete222]

Darren Harvey Thanks for watching

[@SQ_og]

Makes me not want to buy an old lathe!

[@mrpete222]

Yes

[@MarkParkTech]

I watch your videos because they are interesting. The necessary tools are a bit out of my budget, but it's still fun to watch people create things.

[@mrpete222]

***** Thanks for watching

[@JointerMark]

Thank you for this video. I may have an opportunity to work with an Atlas lathe at a museum i want to volunteer at and found this video very informative.

[@mrpete222]

👍👍👍

[@rljzathras]

Only piece of advise you left out is to make sure you wind the dividing head in the working direction to the first position to avoid the dreaded thin/thick tooth on the last cut, otherwise a fantastic and concise tutorial.

[@mrpete222]

Ray Jones Thanks for watching

[@t2thferry281]

TC, another great video. No deduction for masking tape thickness when setting depth of cut? 2F

[@mrpete222]

+T 2thferry I do show that allowance in some videoa.. its really splitting hairs

[@liamrobertson7265]

rock on Mr Pete