Milling Machine Autopsy!

The first step in any CNC conversion: know your enemy.
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Music: Spirit of the Dead - Aakash Gandhi

[@jonathanorlando1294]

"Luckily, I built this thing in such a way that you can't take it apart." - perfect lol

[@SouseMouse]

Yeah, it removes the temptation to fix it right, thus saving a lot of time in the short term. 😆

[@tmmtmm]

when you build something this way: we will fix it when someone else builds something this way: she's skooked bud

[@wezley5150]

I'll get there one day... Currently I'm stuck in the "built it in such a way it won't go together" phase

[@fodebic5253]

Him when in 2023 it will be taken apart: kzbin.info/www/bejne/onTPaHxtpdOaZpo

[@vwertix1662]

Lots of things can be taken apart, just some only once.

[@capivaraofwar]

He's not explaining it for us, he's explaining it to himself.

[@barrishautomotive]

You say that like we all haven't made a well-produced and hilarious youtube video specifically to serve as a record of what we've learned about our obsolete old junk.

[@dtec30]

future reference

[@georgedennison3338]

I explain shop and technical chit to my wife all the time, simply because I understand things better after I do. Mind, I had a brain injury 17 years ago, and I have cognitive deficits because of the trauma, so she knows I explaining chit to her, so I can wrap my head around it, better. Because of that, she's a willing audience. The great thing is, she really is interested. I got lucky, she likes tools, and really likes working for MSC Supply, managing their product data. I really like her working for MSC, too. They have the best employee purchasing program i've ever seen: cost +10%! It's like I've hit the shop equipment lottery!

[@Bluuplanet]

"When you're working on your motorcycle, you're really working on yourself" -- Robert Pirsig in 'Zen and the Art of Motorcycle Maintenence'.

[@AllanSitte]

I was 9 years old when watched my Grandfather was moving a new, and very hefty, milling machine into his shop. I learned many new words that day. Of course, I was not much help at that time. Especially when I asked him why he didn't take the machine apart and move it in pieces. His kind and wisdom laden response: "It would likely be easy enough to take apart.. but... not as easy to put back together. Overall, just easier to move it in one piece believe it or not." Looking at what was presented here, I can see why he grunted that thing into the shop in one go. I look forward to an entire series of TOT videos on the re-assembly of this masterpiece of German engineering. :-)

[@chasemc69]

Just think how mad your grandpa would be to know tony already go it inside his shop before he took it apart lol.

[@pentachronic]

So was one of those words Godamndhdcmhefjd ?

[@randytravis3998]

i moved a radial arm saw into my basement ,, got it from the father inlaw .. about 15 years ago had too take it all apart to get it down the steps ,, got it back together runs great ,,,, now buying a newer home no basement but have buildings ,, so i have too do it again ,,, ugh might cut a hole in the floor and lift it out of the basement ,,, lol

[@glenndwyer5786]

Its awsome hey. My dad trained me as apprentice 27yrs ago

[@John-lx8iu]

I can't hear the name "Maho" any more without a rendition of Maho maho man playing in my head... If you are not sure whether that's a good thing or a bad thing, I assure you it is.

[@TheOfficialCzex]

Rule of thumb: If the product's price is only accessible via quote, you can't afford it.

[@recklessroges]

"If you have to ask, you can't afford it."

[@court2379]

I think you are right. Same goes for those catalogs that don't list prices, like Starret.

[@ddcddc_]

Lol

[@pulesjet]

If you have to ask how much it is you can't afford it.

[@1pcfred]

If they can't tell me what something costs then I don't want to know.

[@mrtnsnp]

The non-professional version of EtherCAT is known as EtherKitten.

[@luizferreira9978]

👍

[@grndkntrl]

😸😹😼

[@haraldmbs]

@@barongerhardt But spiders like the EtherWEB so don't go getting that!

[@jameslederer7613]

Almost. EtherKitty.

[@user-zq6pj5jo8j]

And then there is the Etherbunny.....But they always fall a sleep before they hide there eggs.

[@Pablo4949]

When you were explaining the machine base and x-axis I was thinking "man, I can never tell if the parts are really there or just edited in, must be the lighting" then you reached down and moved the entire x-axis. Part of my brain broke deep inside

[@julianreverse]

Good mornign from Germany, it's 6:30am here and the entire house has woken up now because of me laughing.

[@exotime]

Tony is known to have that effect on people.

[@alexandruahie8880]

Yeah, that is why I'm always watching TOT only in the evening

[@SeMoDrix]

Ging mir ähnlich, dank meines wahrscheinlich ebenso verkorkstem humor 🙃

[@fathernojoy2706]

Leave it to TOT to solve the old show biz question “What do I do with my hands?” Just hold a tig torch.

[@AtomSmasher5]

Remember when AvE tried to rebuild a Mazak and ended up buying a brand new Haas....?

[@Marci124]

Was it brand new? I'm not sure.

[@bdkj3e]

Pepperidge Farm remembers.

[@torkalovolodymyr5097]

Yes, haas is new. He has video where says how dealers were ignoring him and anly haas answered mail.

[@wobblysauce]

@@torkalovolodymyr5097 Yep, they only wanted to do commercial.

[@ohnoitisnt]

@@JackHudler AvE finishing a project? Ha. Ooh is that a flying pig?

[@Rebar77_real]

Just like setting up an Etch-A-Sketch. You got this Tone.

[@alexkart9239]

Someone said, “ToT and AvE are like Dr. Jekyll and Mr. Hyde”, since that moment I can’t watch videos on both channels without a smile.

[@physicsguybrian]

They are orders of magnitude different in every way! I used to watch AvE but his schtick just got old after awhile.

[@jamesmarks8099]

That’s odd, my milling machine only cuts angles, and my lathe only cuts tapers. Super convenient.

[@mnaeslund]

-”That’s not a fault, it’s a feature”

[@dieselmakesmehappy]

Ha

[@klazzera]

my lathe can also cut mirror finish tapers. something you can't ever get with "modern" technology cnc lathes. sigh

[@737Garrus]

What did You expect from an over-engineered German machine? XD

[@Francois_Dupont]

i do wood working and i know what you mean.

[@SeraphimKnight]

The spark plug... Oh This Old Tony, please never, ever change.

[@dimitar4y]

the moment something comes in his mind "Hey, that kind of looks like a spark pl-", the words manifest first.

[@RunningRisks]

*struggle intensifies* "Alright, that lives there now"

[@djstringsmusic2994]

I have done that so many times in my life lol

[@tobystewart4403]

For the vertical lead screw replacement, you need a magnatron levitator with phase shifting contabulation switch. All the best machines have them now.

[@somethingelse2740]

Tony's 6 foot long right arm sure did come in handy making this video.

[@danielscheibe8694]

just advanced myself to level 2 of watching thisoldtony vids: i could tell about the wooden log and oak joke 20 seconds before he actually made it...

[@Pico2199]

There was a log in the video?

[@iratepirate648]

@@Pico2199 - Yup, right beside the base he even pointed it out and made jokes about it...did you even watch the video?

[@chriskaprys]

@@Pico2199 The Captain's log, yes.

[@none9810]

Hi Tony, Long time watcher, short time commenter. What you've produced are some of the most informative, entertaining, and humorous videos out there on KZbin. Speaking on behalf of some of the "hobby machinists" in my local community, we would like to thank you for the scope and detail of your videos, and the ever-present insights across several different, well-developed skill sets, (machining, welding, etc.), that I see are often missing from today's up and coming tradesmen. Your videos have inspired me to spend a small chunk of my retirement on a benchtop lathe and mill. (TIG welder is next!) After spending several weeks learning my machines, struggling with the math, and butchering several pieces of stock, I finally started turning out some good projects. Then all of the sudden, all my retired buddies have hit me up for custom motorcycle parts, broken exhaust stud removals, gun sight mounts, etc. etc., and suddenly, it appears that I now have a great part-time, post-retirement job that I love! Mahalo for all the great videos! Sincerely, Bruce P.S. Please thank your wife and kids too for supporting you in everything that you do as a husband and father.

[@wilsonoberholzer2771]

"...in this choose our own adventure..." That's it, Tony's diagram for the Maho is now a dungeon map for my next D&D campaign

[@h2o2go141]

A huge advantage of keeping the trapezoidal thread on your Z-axis you may or may not have considered is the passive holding force provided by friction. I worked at a company that had a few very large, very old CNC machines that used ball screws on their Z-axis but didn't have any form of power off breaking. If the table was not parked at the bottom of its travel and the power was shut off the z-axis would come crashing down with enough force to damage or even destroy the machine! The last thing you need is 200+lbs slamming to the floor without warning!

[@russcole5685]

Very good point, nice safty warning for all. I think as Tony said, the trap thread should be fine as held buy gravity always in one direction, no back lash until bevel gears wear

[@h2o2go141]

@@russcole5685 I agree, the main disadvantage with trap threads excluding backlash (managed by gravity in this case, like you say) is max speed. That said, I personally have never had the need to move a tool very quickly in the z axis. I wonder if Tony intends on adding a spindle encoder. Maybe a ball screw would be better suited to rigid tapping? Otherwise I don't see any reason to mess with what currently works.

[@bullzebub]

true. i would probably reuse the brakes just to avoid what kind of mishap.

[@h2o2go141]

@@bullzebub eventually the company had breaks retrofitted onto the older machines. Unfortunately you can't just use regular hydraulic breaks because they require constant hydraulic power to maintain their grip. It ended up being quite an expensive overhaul because they needed specialized breaks that could activate automatically as soon as electrical or hydraulic power was lost. They also had to activate almost instantly to prevent the head from plunging a tool through the table if the power failed during a cut.

[@aerogfs]

Last thing you need... but first thing some of us want...

[@vinonsflyer]

Imagine : Tony's wife findind the "But Butts" folder on the personal computer

[@Sharpless2]

@David Parry briliant.

[@rehoboth_farm]

It was labeled "Sir Mix A Lot video" so there weren't a lot of questions.

[@ofar4452]

I personally prefer the racks myself. More classy.

[@MadaraUCHIHA-hy9xe]

😂😂😂😂😂😂😂

[@priit1231]

@Evi1M4chine Animal porn?

[@ForeverEndeavourMFG]

"...candy coated in thirty years of it's own filth" Same

[@Kaxlon]

I worked at a woodworking factory when I was young. Machined molding used in doors, floors, etc. Our big diamond fitted cutters were called hydrolocks because they fitted snuggly on the motor shafts. Then you attached a special grease gun to it and injected grease at high pressure to lock it to the spindle. I think it took 300 bar, like 200 ml of grease to expand the metal in the diamond tool to fit completely to the spindle. Grease gun, yes hand pumped at 300 bar. No electric pumps allowed. Fun times! Best job I ever had. Good money for working 4 days/week. PS. Yes Germans know how to build machines properly.

[@cheddarcheesehead2799]

Dear This Old Tony, I am going to come out and say it, we the people need more videos. I know you have a family and other stuff to worry about but dangnabit we need more videos. I don't care how dumb or boring they may be, we need more, and by "we" I mean "I". There I said it, I WANT MORE VIDEOS! (please pretty pretty please?)

[@compt3ck]

HEAR! HEAR! With the world burning I thought he would have a handful out by now.

[@hassmakki]

Yes please

[@Leroys_Stuff]

No pressure but yes

[@cheddarcheesehead2799]

@Dan L Yes

[@cacs99]

24 hour Tony’s life livestream is where it’s at! 😂 seriously though, I get why he wants more. Excellent content!

[@moritzrank01]

I do appreciate the sometimes insane engineering of my countrymen

[@thosoz3431]

Ich auch.

[@Knallteute]

Yeah we have the grand kid of his lathe in our bbz. They work grea

[@StangspringDK]

It’s the EtherCAT.........

[@muffty1337]

Mich verwirrt der Kram nur ^^

[@JA-vj6yd]

Well it is a maho after all

[@pekinkek8604]

this is most likely my favorite video on this site. i love tearing things apart to figure out how they work and tony, you did an amazing job doing just that. for an added bonus you make me laugh in all of your videos. keep up the great work!

[@michaelbirth1216]

22:28 "Squeezing them onto whatever is inside." *proceeds to put his finger in and out of the collet* "It's pretty neat." Oh, Tony!

[@klab3929]

Still waiting for that "MAHO MAN" shirt. Great video, This Young Tony.

[@genelomas332]

It'll need to be double 'Maho' to be accurate.. ;)

[@AnttiBrax]

"Maho" is finnish for a creature unable to bear offspring, especially a sterile cow.

[@RobertFrisbeeTAM]

@@AnttiBrax That would make the shirt even better!! :)

[@jacobhaggarty3276]

I got let go from my work about the start of lockdown in the UK and It's been a rough time... Seeing a new TOT vid has honestly put a huge smile on my face. It's a real treat to watch this and have my coffee on a Sunday. I don't often remember to like videos, but I really like what you do and I've watched all of them multiple times, they're always very funny and I always learn something. Thanks for making them man, super excited already to see the conversion.

[@Grantos1ea]

@el Guapo Where I work, we've been setting new sales records. Some people have opted out and left the rest of us holding the bag. Six day work weeks and overtime are not unusual. We're hiring new people now, so things are looking up. The people that have left won't be missed but they will be talked about.

[@thatrealba]

Seeing as how you drink coffee, come on over to the USA. We offer the best coffee, incomprehensible riots, life-threatening civil unrest, and loads of job opportunities. See you soon!

[@Flaggyt]

@@thatrealba sorry but you guys hav probably the worst coffee, more like warm water with a bit of color, about the rest you are probably right. :)

[@willi-fg2dh]

easy to remember to like ToT vids . . . do it before you watch. [ you know it's going to be good ]

[@EvenTheDogAgrees]

19:03 If anyone knows where Tony lives, call the cops! That was code for "help, I'm being held hostage by a pair of ostrich farmers!"

[@pmsilvei]

Ahahah Epic win!

[@IanGrams]

Oh man, the cutaway to show where everything fits inside was just delightful. Thanks for doing what you do Tony. Home Machine Shop Edutainment might be a bit niche of a genre, but you sure do it well. I'd say you have definitely lived up to if not surpassed my fond memories of watching This Old House. I see this is currently #16 on trending as of 7pm EST. Definitely well deserved and I'm happy for all those who get to discover you today ☺️

[@turpialito]

My lathe and press cower in a corner every time I watch This Old Tony.

[@InterestingEndeavors]

My inner novice machinist does that!

[@likebot.]

I think they're called "Tooth" clutches because they were invented in Kentucky. If they were invented elsewhere they'd be called "Teeth" clutches.

[@1pcfred]

Everyone knows they're called teefuses in Kentucky.

[@muimasmacho]

In Arkansas they'd be "Gummers."

[@1pcfred]

@@muimasmacho dag nabbit!

[@shaunpetersen256]

Sir, they are clearly called tooth gears because they taste like tooth.

[@802Garage]

I thought it must be the resemblance to the antagonist in the movie classic Teeth. 🤔

[@ZenZooZoo]

Tony, might I recommend saving your back the heavy lifting and building a nice jib crane or even a rafter-mounted gantry crane, complete with chain hoist? Might make an interesting video (wink wink). Either way, thanks for the consistently great content to help us through the apocalypse and cheers from a fellow trials AND machining enthusiast (There’s dozens of us!)!

[@rob12449]

right, I did not buy the part about the part that broke his scissor lift which he claimed was 100 lbs, then with the motor 200. his bike weighs about 200...

[@skonky]

@@rob12449 i’m assuming a lot of rapid up and down along with the occasional “oops its in forward not reverse” could have cracked it plus it could have broken with his bike eventually

[@matttaylor3041]

@@skonky How many times has that been said during a honeymoon....

[@BeardedKingface]

Never thought I'd sit and watch a Milling Machine unboxing in 2020. What a time to be alive

[@brianrhubbard]

Heck yeah, a full length video. He had this video up before his morning stock went away.

[@StorcheiLP]

Use a counterweight or a air shock at the z-axis instead of relying on the ballscrew holding all of the weight. It will also prevent the head crashing down in case of a power outage.

[@Bluuplanet]

I thought of that too, but he'd lose the "gravity is on my side" advantage in regards to Z-axis slop.

[@StorcheiLP]

@@Bluuplanet this would't matter if he changed to ballscrews. Since there isn't this much load he could use light duty ones which fit in the frame

[@UncleKennysPlace]

A power outage won't do anything but stop the thing. The knee is moving, not the head; if it failed, it would go downward in any case. But counter-balancing would be easy enough, if you had a larger reservoir to avoid pressure changes.

[@piergiorgio919]

he could add a hydraulic piston that goes in sync with the screw for added support

[@jum5238]

What? And take away the opportunity to slip in a cliche about the up and down movements of newlyweds on a honeymoon night?

[@MortenOlsen1]

I'm super excited to follow this build! I am the lucky owner of an old maho myself, witch I plan to convert to CNC. Thanks for a great channel, love your videos.

[@alpaker4921]

I'm an apprentice machinist, and the mill i work on also only has a single-motor powerfeed, and sadly, only on the X axis. I honestly still love working with it because its so interesting to try out different spindle speeds and powerfeed speeds, love it! Your videos, even tho we use different measurement systems, are some of the most interesting I've ever seen! Love and prayers to the machinist gods from germany.

[@PapiSmerf]

I get to have a Tony repair video with my coffee? This is gonna be a great Sunday.

[@pineboomerang]

Im here with ya

[@timobenzaka3456]

Me to

[@paninisinabox]

Well said.

[@medtec6747]

Right

[@chrishenning8829]

Same. Cheers mate ☕

[@Adam_Lynn]

I've seen people who can match your prodution value. I've seen people who can match your engineering skill. But to my knowledge there isn't a single person on the planet who can produce a video that gets close to yours for entertainment and learning in one package. Bravo Sir, bravo! :Edit spelling

[@Hockeyguy8541]

"CNC likes to go up and down like newlyweds on their honeymoon. Now that's a lot of wear and tear!" Fuckin great line Tony xD

[@stephenbaretich7166]

That was a video that was very easy to follow. You have a unique gift Tony! Excellent content as always

[@vendter]

When I CNC'd my Bridgeport mill, I powered the knee instead of the quill. I kept the original acme screw and there is no backlash. No matter how fast I drive it (max is 60 ipm) gravity is faster.

[@BamaRailfan]

32 ft per second per second fast. If you have a feeedrate that high, you may want to get back a bit!

[@tophalfofabarn447]

You won't see any backlash until the downward force exceeds the z axis weight. Even then, it doesn't really matter if there is backlash on a typical plus he operation. I would only expect issues on certain very specific scenarios, such as heavy cuts with a large ball mill.

[@tihs87]

hey i have some questions for you, since i'm thinking of such a conversion myself:) how precise can you get on the z axis ? i mean when you go to a certain depth of cut what is minimum thickness you can add for the second deeper pass ? and how repeatable is the z axis without any load and during work ? what material do you usually work with ?

[@vendter]

@@tihs87 Less than .001. It will depend on how strong your servo (or stepper) is and your gearing. I have 2 to 1 on the x and y axis and 3 to 1 on the z. The servos are about 3/4 HP. It also will depend on the resolution of your encoder (or stepper). Sticktion also comes into play. Here is the mill:kzbin.info/www/bejne/n5nVeqWVgqiJZ5I I completed the conversion before I had a KZbin channel.

[@FilipSalomonsson]

Ah, the global productivity drop as Tony lays out a Morse code trap.

[@Francois_Dupont]

when ?

[@MuellerNick]

Another ToT classic with his jokes and visual surprises. You mande me laughing anough for more than a week. I wish you all the best with this conversion. It will be worth it.

[@resipsaloquitur13]

Ball Nuts. There, I said it.

[@williamtolliver4350]

Someone had to.

[@n5svm]

I'm just a poor old retired firefighter in desperate need of a milling machine can you send me one of your sprouts so I can grow my own?

[@mikecurtin9831]

At 16:00. This is where I was going, too. I'm interested in one of the cuttings.

[@casychapin4647]

Hahah

[@casychapin4647]

I've always heard. A milling machine can build a copy of it self. I kind of wish someone would do that in a video. Just clone their machine. Those big castings might give you some trouble.

[@johnsherborne3245]

By the looks of it he is going to discard enough bits to build another mill.

[@georgedennison3338]

@Allan Moore You're gonna hate me, then. I've managed to gather up enough parts and pieces over the last 3-4 years, that I only need to buy a T-slot table, and some misc, minor stuff, and I'll have enough to build a mill, with precision shafts, and linear bearings instead of ways, and recirculating ball lead screws. Including the ER32 collet chuck I'm integrating into an old mill head as the spindle, I only have about $75.00 invested, so far. Just to rub it in, :) , the mill will also have a secondary spindle, it's position fully adjustable in three axi, for sharpening, reconditioning and making tooling. There will be a low speed version (~5 RPM), for creating helix grinds, AND a high speed version, (33,000 RPM). I MIGHT have $500.00 in it, total, by the time I'm done. GeoD

[@tomrspears]

your sense of humor is insane. had a smile on my face the whole video. keep up the good work i love it

[@physicsguybrian]

I will be watching for installments of this transformation like nothing else! Like all your videos, excellent! A pleasure to watch and enjoy! Stay well and be safe.

[@rob12449]

I loved the intro: wow your kids did some job on the lines / veins... so that "100 lbs" (200 with motor) part broke your scissor lift... and you are deciding to change it from one motor to multiple, you are a mad man!

[@jonathanhall7903]

The engineering, mathmatics, machining of these things still boggles my mind. Brilliant stuff.

[@BRUXXUS]

13:25 I think I woke my neighbors from laughing so loud! This was super fascinating, truly. Also, the little illustrations were very helpful in understanding how this all fits together.

[@willkern6]

Dear Tony: It has been one month since your last video. I realize that it might have been short-sided of me to limit my doomsday bunker's access to the outside world to only one KZbin channel, but you never can be TOO careful, and I figured your videos might help me re-build civilization if push came to shove... That said, I can only assume that after one month of radio silence, the end of the world has indeed come and concequently, I am the last person on earth. This is OK since I have about 2 decades worth of canned beans down here, and am still trying to beat my high score of bouncy ball on a paddle (12 bounces!) The time has come for me to shut off my computer - I hope that in 10 years when I climb out of this bunker, that I will use the lessons I have learned from your videos to make your memory proud. Godspeed, Tony. You truly were the best of Humanity.

[@Herzankerkreuz67]

I hope he's alright. Been wondering about the silence.........

[@Uzwel]

I don't get why you aren't at 1M yet, knowledge, editing and humor are ON POINT! Keep up your amazing work T. 👌

[@mmazz30]

I think ToT has left "subscribe" out on purpose so we can all rewatch it to find it and clock up more views. Godbless you Tony :-)

[@cricketpunisher6082]

Is it the tapping he does on the coils?

[@invertedpolarity6890]

For some reason, I am reminded of when I was a kid and took apart one of my motorized toys and had no idea how to put all the gears and parts back together.

[@bobtanner5151]

I know zero about milling, machining, etc, but I find your video very entertaining! Thank you!

[@Pissguzzling]

Your content is very enjoyable, found you in the youtube grind last night, best thing ive found all 2020 by far!

[@madrobotchris]

Hey I'm robotics PHD and: I think there is no real reason to change this thread unless it gets heavy wear after some time. Even then I'd rather make perfect copy than try ball screw. 1st of all ball screw have higher steps. You would get probably like 3 or 4 times higher speed off the same rotational speed, and thus need better gears. 2. If the milling machine never jumped while milling it means the weight on Z axis is always enough for the work. 3rd and most important, this screw not only powers the movement but it also supports all the weight and reducing the size of the core is a bad idea for sake of safety and tolerances. If u need help with CNC feel free to contact me. I've done some conversions in my life, not etherCAT tho. Love ya!

[@DanielHeineck]

Agree entirely. Not a robotics PhD (in something else that doesn't matter here :D) -- a zero-backlash nut DIY'd in would probably be the best option.

[@georgedennison3338]

@Mad Robot I just told Tony about a zero-backlash nut & screw I have. I bought a bunch of stuff from an engineer retiring due to health issues, and this was in a box of misc. I have seen some anti/no-backlash nuts, but nothing designed like this one. The shaft is ~22 mm and is trapezoidal thread. The nut is some exotic looking metal harder then heck. I described it as looking like it is machined and anodized steel, (I don't think that's possible.) The engineer did high end design and prototype work for the high tech industry here in Oregon. All of the components I got from him were high quality, (expensive) stuff. Lots of brand name stuff, so I have no doubt this lead screw & nut I got are quality. It has the look of quality. The nut has one half with internal threads, which telescopes inside the other half. The 'inner' nut has longitudunal slits, so its threads will tighten on the shaft. The 'outer' nut has a spring wrapped around its mid-portion which squeezes down on the inner nut. (not sure what type of spring that would be. It's not a compression or expansion type spring. wrapped spring?) The anti-backlash nuts I've seen use a expansion type spring to push two internally threaded 'half' nuts, apart, to eliminate the backlash. This ring any bells for you? I doubt he'd find one to match the thread of his shaft, so it would be new shaft and nut, or make one like it. The compression sping type wouldn't work on the vertical screw. If you don't recognize it, perhaps you could point me to somewhere I could look at some, I might find it. Terminology, specifically the correct name, is the biggest challenge I run into when I'm trying to ID/source unfamiliar components. If there is a correct name for them, just that would be a big help. GeoD

[@daffyf6829]

I disagree with #2 only because this machine used hydraulic brakes to keep the other axes (axises? axees?) from moving. In other words, the weight of the head plus the hydraulic brake was enough to keep the head from jumping during a cut. IF TOT is trying for a full 3 axis machine, and if he is perhaps wanting to heavy rough steel, the weight might not be enough. At least, I wouldn't risk committing to a build based on the hope that the weight is enough. Chances are he will have to settle for 2.5 axis and leaving the fixed nut and hydraulic brake.

[@tophalfofabarn447]

Consider that this machine could not do 3d profiling. If you are ramping up or down on a counter the loads are much different and the cutter could bounce on the Z axis backlash.

[@tophalfofabarn447]

Also, the leadscrew with a tighter pitch will require about the same torque as a ballscrew with a courser pitch because there is far more friction in a leadscrew.

[@nerd1000ify]

A local scraping expert (Of whom I am an occasional student in the art of machine tool restoration) told me the short sides of machine tool slideways usually wear from the outside in in this way. If I had to guess why I'd say it's because the slides need some amount of running clearance in order to move, so whenever the longer sliding bit (e.g. the head itself) has its center of mass overhanging the end of the short slide it is sliding only on one end of the dovetail top and the opposite end of the inside of the dovetail. move it back and forth a whole heap and you get that wear pattern. Anyway, the correct way to scrape these things in is to get everything flat and parallel, then relieve the middle 1/3 of the short half. That way you won't end up with the whole arrangement doing a sterling impression of grandma in a rocking chair while you're trying to get chatter free cutting...

[@arenspringvloed9020]

This sounds a lot like how they grind precision lenses. The back and forth wearing gives you a curved surface.

[@cordberti6849]

I have to voice my appreciation for showing us the gunk inside of your milling machine. I’ve spent months in therapy feeling unworthy to mill anything because I can’t eat off of mine.

[@tkoep8798]

Finally! News about Maho. I have been wondering about your choice servos vs steppers and I my opinion servos are the only possibility. I have built 2 conversions and 2 new custom machines so far and I think the most valuable lessons I have learnt are: 1 - Gravity: it does not fail you, everything loose will come down in uncontrolled manner, so a motor with brake or external brake is a must on all vertical axes. I also consider a adequate brake resistor a must on vertical axes, otherwise you'll risk frying the drive at the end of high rapid down. (I fried 1) Installing servomotor axle facing up is asking for trouble: the seal is a dust seal, it will not hold cutting fluid/oil. the fluid will eventually get inside, run alongside the rotor onto the lowest point which is the encoder, in most cases with optical commutation track, messing up the motor commutation causing drive to fry the motor (I fried 1). Same with all cables; unless you use connectors for submerged operation loop all cables so that the connector is not the lowest point. 2 - Voltage surge suppression. All coils must have surge suppression - A relay/contactor driven coolant pump is a coil in itself :) (found also this out the hard way) Big Thumbs Up

[@fartzinacan]

How could I be so lucky to wake up and see this. Thank you ToT.

[@31k3csgo]

Regarding the unexpected wear pattern you mentioned at 6:30, Stefan Gotteswinter has a very interesting video about that, but I am currently not able to find it (I may add it here once I do). Generally, the longer piece of a dovetail slide will wear to become concave as the middle part is in contact with the other piece more often and the short piece just wears convex to match that. Since you are looking at the shorter piece of the slide, a concave wear pattern is expected. Because of this, dovetail slides may be scraped to oppose this pattern slightly (short piece concave, long piece convex), so that the wear improves the fit before it gets worse.

[@georgedennison3338]

I watched this yesterday, and have memory issues, but my reaction when he was confused by the wear was that it made sense. If I recall correctly, he was talking about wear at each end being more than in the middle, right? For something moving both directions and extending beyond the fixed ways, I would expect that to be the normal wear pattern due to the increased leverage as the moving table extends beyond the fixed ways. It might be a very small increase in force due to the overhang, but with thousands of reps, and progressive wear allowing more 'hang', it would gradually get worse. I was going to watch it again, then forgot about it, when I got sidetracked on the keep or replace the vertical lead screw. I ended up commenting about that, and forgot about the way wear. From watching him work on the trials bike and a few other things, I get the impression Tony doesn't have a lot of experience troubleshooting or seeing worn/broken stuff. Not a knock on him, he's actually been lucky he has had to repair things for a living! I have for most of my 66 years.

[@FoxMacLeod2501]

I was really starting to wonder... "now how is he going to disassemble that sciss... oh." I thought for a minute that I had somehow missed some part of the scissor lift video where you demonstrate some clever way to make it serviceable. By the way, I really enjoyed watching you build that lift, except for the anxiety I was experiencing as you welded it more and more past the point of any semblance of being able to pull it apart without cutting tools.

[@FoxMacLeod2501]

I absolutely love your content, Tony! Just wanted to make sure you know I appreciate it... I know my last comment might not have communicated that. Keep it up, please!

[@PhotoArtBrussels]

I always miss you Tony, great to see another great video! You always make my day!

[@Hereford567]

Didn't understand a word but I played it while I was in bed and I was asleep within seconds. Your the best TOT. Sweet dreams

[@barmetler]

If you show too much of the disassembled MAHO, a certain Australian dude might build one from scratch just from the footage you posted, so better be careful

[@mattgies]

Nothing sprang to mind at first, but then it clicked.

[@barmetler]

​@@mattgies you did not just do that

[@michaelguzzi1]

@@mattgies Here, have my like LOL

[@caodesignworks2407]

No worries, mate, he'll get 6 videos in and disappear forever.

[@Pico2199]

No. It's not made of brass.

[@DavoShed]

I’m glad you are interested in my feelings man. Up to now I thought you didn’t really care. I’ve been feeling a little sad with this whole stay at home thing “but” your video has really helped!

[@connecticutaggie]

Great video. Thanks for sharing this ancient work of art with us. Regarding the motors, I am an engineer and have spent quite a few years of my life doing high speed mechatronics (mostly servo control stuff). The one thing you really have to watch out for in servo control is making sure the motor and encoder are tightly coupled to the load axis and that the load is as linear as possible. Lag es no jueno!! Lag can cause the control system to oscillate (especially when it is trying to hold position) as the lag introduces a non-linear load; and, if you have powerful motors that is really bad - the motor will win and the mechanical parts will lose. One way to address this is make the control less aggressive and soften the tuning or change the system to use a more complex control algorithm. If you want to talk more about this, let me know. Also, one other Tuber I watch is Jeremy Fielding. He definitely seems to know his way around motors.

[@fladder1]

I feel very strongly that you should over-engineer the heck out of the z-axis. I also feel very strongly that your videos are addictive and we need more!

[@Bluuplanet]

You're talking ball screw. He doesnt want to spend that much. Maybe he can find a take off from some other piece of equipment. Maybe a second z-drive in tandem with the existing one that has a travel of a quarter inch or so...a "differential screw". Can be highly precise to make up for slop when the main screw stops turning.

[@fpaolo63]

Some years ago, I worked for a German company ... What I learned is: a group of 10 Italian engineers after long discussion make a common decision and then they delivery 10 versions of same project. Instead 10 Germany engineers after long discussion make a common decision and then they delivery only one common, sometime too complex design. The best project result is when the 2 engineer groups are able to work together with respect and trust ... ... ... About EtherCAT, it is a special field BUS based on ethernet Layer 0, able to synchronize different actuators, the MAC (medium access control) is different from IEEE-802. ;)

[@fpaolo63]

@Evi1M4chine Sorry NO so simple! It require a special HW. The Bus use a sort of ring (2 ethernet interfaces for each node - in-> out). Master send a packet contains data for all the nodes. The first node in the ring receive the packet, extract its own data, forward the packet to the second and wait for fire msg, and so on... When master receive back the packed if no errors it send the fire msg. (This in few words).

[@fpaolo63]

www.bausano.net/it/hardware/arduino-ethercat/arduino-easycat.html (sorry in Italian)

[@regmigrant]

@@fpaolo63 they've reinvented Token Ring and put it over Ethernet? is it a control mechanism for synchronisation?

[@fpaolo63]

​@@regmigrant Yeah, you are sending me back of 32 years, when young engineer I started to play and enjoy with networking stuffs .... :) EtherCAT is slight different from IBM Token Ring or FDDI : it is designed to synchronize the slaves. You can find details @ www.ethercat.org/en/technology.html . The goal of the EtherCAT is like (let me say) "the home made CNC systems", where all the stepper are clocked by a single piece of SW running on a single piece of HW (i.e. 3dp SW: rerap, marilyn, ...)

[@brianmarshall8593]

Hi, Back in the 1970's we called the pattern on the ways "frosting" which was done manually using a hand held scraper and the maroon gunk you thought was a previous DIY botch job was called "Stag paste" which was a liquid gasket oil seal probably used during the original manufacturing process.

[@watchingytvids1]

Why did I the actuations of the clutches so satisfying?? Also, fully admitting I am not a machinist yet find your videos so very informative (and fun).

[@juhavuorinen3945]

Maho is high quality milling machine. I was working a few years Maho MH800 milling machine . And i love it so much. It's very accurate, and you can do it what ever you have dreaming

[@ghidello]

And just like that I'll be finding myself singing "Maho Maho man" for the next 2 months. Again. Thanks, I guess!

[@pacesteam8279]

Yep. This just happened to me.

[@AdventureUwe]

The spark-plug really cracked me!!! Well done mate! I was missing your updates!!!

[@unicyclingistheshit]

Hi from Scotland! Always enjoy your videos Tony, they always give me a laugh. Keep up the great content

[@RayFromTheHayclan]

By watching this video, I learned that I can train one eye on you showing how the drive train goes together and the other eye on looking at the diagram down in the corner. 😁

[@MushroomStampGalactica]

Glad I’m not alone.

[@belekjenkins2308]

Buddy you have no idea how much I've been waiting for this.

[@T0tenkampf]

Amazing ingenuity...both of your mills are enviable to own!

[@4n2earth22]

That, Ostensibly, Terrorized most viewers, no doubt!!! All the offal from former body parts sticking to everything in sight. AAGGgGGGG! Wincing and cringing as gears meshed and bearings ground against lips and chips from chattering tools in the machines deep dark past. Great job!!! Loved every second.

[@dennishudson9723]

Also I really would enjoy more videos on this conversion I find it really interesting even if It is still in tear down phase even if you don’t spend all the time doing your wonderful editing as you normally do! A “B roll” channel maybe? Just like a hang out time with old Tony in the shop!

[@bnwabnwa]

I use maple for my thinking stump, I found that a large diameter works best for balance and comfort. Thank you for sharing hope to see you soon!

[@AntonBabiy]

Man, I'm super excited for this project! Thanks for providing this fine content for us😊

[@renonobody2284]

You and I sir are alot alike. Always troubleshooting and fixing. I enjoy your content, thanks for the informative videos.

[@fxzn]

me: hm its 4am, i should probably sleep tot: *uploads new video about cnc conversion* me: damn you, this old tony. let me sleep!

[@Lordosvk]

in europe we have 14:00 :)

[@jangriesel5056]

My thoughts exactly - not sleeping so much - "butt" was working ;-)

[@googleuser859]

Ok

[@TheFAA213]

23:37 in the bottom left hole in the table. Is this a kittykat ? :3

[@soberhippie]

I think it was the EtherCAT Tony was talking about

[@fredio54]

Sharp eyes, man, very sharp eyes. Totally missed that one. Usually when I read through the comments I learn nothing new, but you nailed this one. And so did Tony - very subtle, very well played, sir Tony! :-)

[@Walking_Death]

I spotted that movement and was waiting for a young finger with subscribe written on it to poke up through the hole.

[@calebreutener870]

How the heck did you see that. I had to rewatch 4 times to find it.

[@h2o2go141]

its definitely not a kit kat, like i first read!

[@matthewherrera2441]

Another masterpiece, Tony! “That lives there now” 😂

[@sparacin]

Your channel is the most interesting of all KZbin. I also prefer to watch your video than a movie. Keep on with the excellent work you do. Thanks.

[@dasworkshop4967]

Tony, mind sending me a cutting? I'd love to grow one of my own. Thankz!

[@leslieaustin151]

DASWorkshop Can I join the queue for a cutting? Les in UK

[@court2379]

The fertilizer is expensive and pruning to shape takes years, you are better off buying a new machine. That is why no one propagates them that way.

[@supertramp6011]

DASWorkshop I grafted some cuttings recently,but all I got was a worlds smallest mini- Lathe....

[@Pico2199]

Last time a use someone else's cuttings, I got 20x20 linear rail. I ended up with 10 meters before I could get it to stop.

[@0cujo0]

I heard if you stick the cutting into a potato - It will bloom?

[@mrplague9881]

I've been long awaiting this video. i hope it was worth the wait.

[@mrplague9881]

Well, had to leave it on a cliff hanger eh?

[@stevehall4548]

I have been eagerly waiting for the updates/progress on this machine. Way to go Tony! Man-Card status is strong.

[@KB-dd9xr]

Thanks, Tony for the tomato anatomy lesson! Didn't know that they have a posterior orifice. You taught me mechanics and biology at the same time - way to multitask!

[@chriskaprys]

19:03 When I saw the three taps on the Z axis I got so excited that he was about to spell "SUBSCRIBE" in Morse code, but alas it's "SNNNNGT" or "OAAAAUE" or something in between.

[@jameswoolley3976]

this was, a beautiful film ❤️

[@noikristjansson6038]

@bic boi you don't hindsight too judge a TOT video.... it's always beautiful.

[@simonelomax7465]

bic boi, select BTF function on your lathe, then come back to comment. Easy:)

[@codprawn]

10k likes and over 1000 comments - on the same day you posted! What's it like to be a star? Great video as always and can't wait for the CNC conversion videos!

[@britishreaction54]

Very interesting. That was a clever and concise lecture on how the power is transmitted from the single motor to the three axes. And I adore electromagnetic clutches. So I was in my element.