TOT and inheritance yesterday, Artisan today. This is gearing up to be a great weekend.

@printgymnast368

Ай бұрын

Don't forget edge precision.

@vivigarr

Ай бұрын

Blondihacks as well It's a good weekend

@PaulLemelin

Ай бұрын

My watch later list is filling up

@cousindave1

Ай бұрын

Snowball Engineering on Sunday morning too

@MasterOfNone2023

Ай бұрын

I see you're a man of culture as well...

What I like most about this channel is that degree of difficulty or complexity are not deterrents. Spur gears, gear hobs, worm gears, taps, jumbo fly cutters that make other machinists run away are taken up as a challenge.

Very nice work. The quick and dirty method is to use a tap and just calculate the appropriate gear from that.

@UncleKennysPlace

Ай бұрын

Or make a cutter from a 5% larger diameter worm, as I do.

@neoasura

Ай бұрын

Or just use a cnc lathe. I mean, its cool from a romantic nostalgic point, but with the cheapness of cnc setups now, even your smallest shops have access to cnc lathes.

Things are getting real fancy in the shop!

I'm here to watch Artisan Makes weekly workout of cutting a big chunk of metal with a hacksaw 😅

@pieterveenders9793

Ай бұрын

Yeah, after all these video's, and all the machines and accessorries he has bought for it I'm really shocked he still hasn't bought a metal bandsaw. Or hell, he could have even made one himself, they're only moderately difficult to make, and especially for the bigger models it's a lot cheaper to make them yourself as well.

@ianmoone2359

Ай бұрын

I’m wondering why on earth Vevor haven’t sent him one to review & keep? 🤷‍♂️

@kevinmullner4280

22 күн бұрын

Yeah, i´m wondering every time why he doesn´t take the 100,- € into hand to buy, for example, a "Parkside" metal bandsaw. And if it is on sale it is just about 69,- €. Or a cheap one out of Amazonia. The sweat and tears with the hacksaw would kill me. And that cheap one is good enough. Especially when Arti will have customized it. What he would do - that´s for sure. Maybe we should fundraise one for him?

Very practical on what a small shop can do. I always love discussions on what is enough and how much precision do we really need for the job. Looking forward to seeing what you are going to use this skill for.

You did a good job there. One thing you didn't mention, the hob you made has subtly different dimensions to the worm as it has to cut the gaps between the teeth and the gaps are thinner at the root than the width of the top of the tooth. Otherwise, well done! You've just gone through the same learning curve I went through when the worm drive in my bandsaw packed up. Couldn't find an off the shelf spare, so it was DIY time, making a new worm and worm wheel using the free hobbing method like you did.

I'm like 98% certain that this channel is just "I Did A Thing"when he feels like being serious. Also I just realized one of the main reasons I love your videos. Not only are they very well-filmed and edited, educational, and entertaining, but you don't do all the bullshit "KZreadr" stuff with all the "smash the subscribe button" stuff that everybody hates.

@4GibMe

Ай бұрын

Or have a dog with big balls running through some poorly cut grass. AGREED.

Soon: Planetary Gears 🪐🪐

@willclark491

Ай бұрын

Bah! He should be ready for a miniature automotive differential!

@nickwolfe483

Ай бұрын

Planetary gears are just spur gears that are encased in a ring gear.

@danielnorman8595

Ай бұрын

I bet spacex makes a lot of those.

@bergamt

Ай бұрын

@@nickwolfe483 Ok but how do you make the internal ring gear

@a-k-jun-1

Ай бұрын

​@@bergamtwith a shaper, that is the most common old school way

The ol' worm drive, it has so much power. That was worth being late to work. "I was late because I let a worm drive." They probably won't think it's funny either.

Fascinating video. I learnt a lot about worm gears that I didn't know 30 minutes ago.

Thank you for you cut scenes that show real-world stuff like all the adjustments to center something in a 4 jaw chuck. It helps us know that you operate in the same world we do.

I did this a while ago, only I used a triple start worm. It took several attempts at each stage to figure it out, and my set up ended up being much nicer than what you have done. The most important thing to keep in mind when free hobbing is that until the gear is cut to full depth, it does not turn at the correct ratio, and the whole thing ends up out of sync. The "secret sauce" so to speak, is in how the hob is cut, and preparing the gear. The hob must cut slightly deeper than the worm diameter, but its root must be exactly the same as the worm. This means you actually have to grind a different tool for the hob and the worm. The back of the teeth must be fully backed of or it will bind the gear while hobbing. You left a pretty large space behind the cutting edge and the relief, much too much. Lastly, the hob really needs to be turned between centers. The gear needs to have the concavity cut on the lathe to about 0.002" from final size, and a specially ground tool is needed to get the shape right. The gashing also needs to be done to about 90% of finish shape and depth. So you can not use a conventional spur gear cutter since it it too big in diameter. I turned a piece of tool steel to 90% of the diameter of the worm, and then ground the tooth profile into it about 10% undersized. Gashing was just like you showed. I also used roller bearings on the gear to ensure it was clamped well, and yet able to freely spin. The hobbing at this point is really just making the finish cut. The "blank" should actually be close enough to done after gashing that the worm will drive it.

Excellent approach!!! Gears were the first insights into computing. Today they are united. One commands the other obeys. Perfect! All that was missing was the calculations for all this to happen. São Paulo-Brazil!

Absolutely fascinating. I have no idea how you learn all this stuff but really appreciate the fact that you share it with us. 👍👍👍🇦🇺

Good exposition, enough depth and thoroughness. Impressive.

Great demo of developing the system, enjoyed very much!

Cool! My sewing machine uses this gear to wind bobbins; it was the first time I saw it. Awesome to see how it’s made. Thanks

Thank you for the great production of the video and the topic covered. You were very happy to use "DIAL Marker for threads" as an example. There are mechanical turners who do not know and do not know how to use this "DIAL to make thread" system.

One thing you can do to cheese worm gears is to make the large gear by holding it with bearings and then use a tap as an endmill to cut the gear shape. As the threads cut the blank it rotates and you feed in SLOWLY. Once you have good engagement its done. Then you can use the threads as the small gear.

This video was so damn informative. Such a great vid. Thanks for sharing this Artisan. 👏

love it! showing the real world incremental process without the exclusive equipment! i got a lot out of this

In my limited experience with materials of all sorts, I've found cutting has to go in two speeds. Slow and meticulous, or as fast in a steady as possible. I would argue you're at the slow end, but only out of pure ignorance in making gears. Glad to see someone keeping this knowledge alive, the gear IS a massive gain in work, and a good gear set is months of labor saved.

Nice. Can hardly wait to see in what it is going to be used.

Amazing video. Very informative. Keep it up

Kicking goals mate. Cheers.

OK, I'm sold. Ebay it is. 😁 Fantastic work as usual, well done.

Thats some impressive work for sure! Another thing that also amazes me about worm gears in general is that they last as long as they do. The thing being that in constast to other gearbox types where the gears just roll over each other, with worm gears you have a lot of sliding going on between the screw and the gear. Sure worm gears are filled with some good quality oil adapted specificially for worm gears but still I would expect a worm gearbox to have a much shorter lifespan because of the sliding motion. A real world example from me is the metal bandsaw at my workplace wich uses a worm gear drive. The drive motor on the saw and thus also the screw spins at 3000 rpm with slam on direct start sometimes starting and stopping 100s of times during a workday. We got the machine in 2004 and it still show no signs of wear on the gearbox after 20 years of operation. At least I cant hear any different noises or notice any backlash still on the machine.

Thank you for sharing

Very Nice. You really know how to work through problems.

Excellent work my friend.

Well done sir!!

another excellent video mate!

Very interesting project. Well done.

Great video! One idea for the gear tensioning: Use thrust washers below and above the gear your cutting and a simple plate spring (idk if it’s the correct term, translated from German) to tension the gear :) Reduce the spacer height by the thickness of one thrust washer obviously tho. Might be useful if you’re planning on cutting more worm gears in the future.

Very interesting and pretty nice single point thread cutting for a bloke that doesn't like it very much. Thanks.

That's excellent - thanks! I need to cut a 90:1worm soon,, have read the same books as you I'm sure, but seeing it done is super helpful - cheers!

Hey, nice copper "soft jaws"! I've got copper pipe split and hammered onto my vice in the exact same way. Works pretty good!

Love your project

Cutting normal thread on a lathe is already somewhat of a challenge, at least as small as this one. When I learned lathe the only thread I cut with a chisel on a lathe was a trapezoid moving gear on a 4 cm diameter blank steel rod. The worm is not really a problem if your lathe lets you choose the correct values, but the gear is the major hurdle. You could cut every tooth with a mill when you set the table to the gradient/slope (idk the correct word in english for this) of the worm so it fits, but then you'd have to rotate it. Or you could build a little helper. Precut every tooth with a normal thread cutter so you have the perfect gradient. Then mount it on an angle with a tiny spring that grips into the little valleys so you can mill another tooth at the exact position, combined with a quick span of course so the mill doesn't rip it apart. And then at the end you cut a round depression into it with the lathe. That requires of course that the piece is a bit wider so you can still put it into a chuck, and then cut the gear off.

Thank you, love your videos!!

Very useful and nicely done; thanks!

Man watching you make the worm just reminds me about how fucking amazing human engineering is some times. Like, just look at what a Lathe can do, it retracts the cutter and moves it backwards while spinning everything in reverse and spins normally when its realigned for screw teething. Absolute math went into making them, along with all the addons like the reducer and just the gear ratios inside them to do different things.

great job. I think I would a diamond blade along the cutting teeth as heat treating can distort the cutter

I'm in awe of how you take what I see as highly complex components and just make them. Do you have no fear!?

I came across a strange worm gear set up on an old OZITO electric chainsaw the worm gear set up was the motor shaft a 12mm metric thread driving a gear at 90 deg for the oil pump, it was defiantly a 12 mm metric thread as a 12mm nut was holding on a spacer on the end, the gear was made out of steel and had the helical profile, I thought it was odd until I saw this Video and how you made your own helical cutter , I guess the Chinese have mastered it.

Beautiful video

Incredible video. We should put your name on our Formula Student car as youve helped us more than some sponsors

20:10 you're really good at that 👌

First time viewer here! Love the content! Aus ToT 🤙

Very neat , must buy some involute gear cutters some time , ive seen people rough hob gears using a Tap before, seems like some thrust washers would be just the job to let the blank spin.

Well done you, I thought I had already subscribed when I had omitted to do so - rectified.

Well presented excellent information thanks very much

On musical instruments they are called Machine head tuning screw.

Great video mate! I would like to ask you how often do you use that Hemmingway die, holder, you made some time ago and please give your honest opinion if you think it is worth me making one. Thanks so much mate

at tafe we make a 4 start worm gear in the horizontal mill, with the shaft that connects the two. a four start thread is mad complicated, especially because it he helix is so long compared to its rotation, so the cutter is working hard to machine it

Very nice.

To help with finding useful pitches, I use a simple spreadsheet that calculates the effective pitch for all combinations of change gears I have. For a given pitch, I usually find a combination that gets within 0.01%.

There is a great DVD from the early 1990s tritled "Making gears the easy way" , that every hobby machinist should either watch or preferably own a copy of. It covers an array of gear setups with simplified math, and machining setups/techniques for both lathe and mill. Just as I'd recoment Machinery's Handbook and the DVD set "Lathe Learnin' " for the beginning metal turner, I would recommend Making geras the easy way for anyone foraying into gear cutting and hobbing.

Nice!

I forgot what goes into making a proper worm gear set. That is quite involved!! You had great success! That was awesome to watch. Thanks!! 🔩⚙👍🙂

Hi, you’re very smart, keep that green book! It is full of information! Being a fitter/turner isn’t about remembering everything it’s about being able to find the information you need at the time! Great video once again! Side note I lost my green book ten years ago when I moved from WA back to NSW 😢

@ianmoone2359

Ай бұрын

“Aaaaand, stay out!” Said by a parochial Sandgroper! 😜😂😂😉

Love it.

Awesome! You're an inspiration bud, love the channel! Every time i watch you quench something though, I cringe a little in how small a container you use for quenching. Maybe it doesn't matter, but in the knives I make, the oil heats up so fast in a small container that I don't get as good results as a huge oil bath. Have you ever tried a bigger container with more volume for quenching? Was there any notable difference? I watch every week, Roger from Calgary.

@bobvines00

Ай бұрын

Where I used to work, the quench oil was preheated in order to reduce the chance of the part cracking.

Brilliant your a absolute wizard to me

You are my handsaw master😁

Great work! I didn't expect the gear wheel to be the complex bit, but I should have guessed. Would a thrust bearing help with holding the gear blank down on the hobbing setup? It should allow tight workholding with a lot less rotational resistance?

good stuff.. tyvm!!

I enjoyed that! I know you made it out aluminium but that should work in steel as well? Cutting a shallow profile and letting the helical cutter di the rest?

Your very talented and have a head for the math i am unable to understand due to my disability but this was fun to watch its a cool gear :)

top job

You just seem to make it so easy.

I had to make a worm gear for a mig welder wire feed motor. With a limited amount of tooling on hand, needing the welder for an urgent job and it would take a month to get a replacement gear I was tasked to come up with a solution. The worm gear was made out of aluminum and was stripped in a spot, But the work was made out of steel and not damaged. So checking around I found a tap with the same thread pitch as the worm. What I did was to find an end mill with the same diameter as the tap, cut a blank gear slightly larger than the original. Then used the end mill to profile most of the radius in the gear blank using a spin jig to rotate the blank. After making an arbor to hold the gear so that it spun free I used the tap in the mill like a gear hob. Now the tap has a 60° angle and the worm is basically an acme thread. So to finish form the worm gear teeth I used a lapping compound with the worm from the welder. I had the job done in under 12 hours and the welder was in use the next day. Sometimes you have to think outside of the box when you are in the middle of no where and you need to get a job done. This happened when I was in the military about 5 years ago. They are still using that welder with that gear I made.

Making gears out of worms *is* rather difficult. Worms, of course, are squishy, wiggly, and don't want to hold a particular shape (other than, of course, worm shaped). Once made, they also don't wear very well. 😜

@boots7859

Ай бұрын

LOL, they are a shear mess...

Could you use a thrust bearing when securing the gear to the fixture so that you can apply more pressure without preventing it from turning?

Interesting video and great work. That straight cutted gears become really noisy, and the inacuraccies between the teeth add up with every additional gear. A worm gear has lot of advantages (self-locking) and disatvanteges (friction, extremly high w&t when high forces are transmitted) - so its uses are very limited. So ......one of your next projects maybe could be some helical toothed gears? Perfect to reduce noise and clattering.

If you put a encoder on the one axis of your mill, and a stepper motor on the dividing head, you could do an electronic connection between the 2. Many people have done it. It's like a variant of an electronic lead screw on a lathe

I designed and printed some for a school project. I can't remember the ratio, but HOLY COW... I can flatten a can with ~23g of plastic.

You can use a similar process with a plastic gear, but not cutting, instead thermoforming it. Instead of a cutting hob just use the worm itself, and heat the outside edge of the plastic gear blank then using force, push the worm into the gear while it is spinning then friction will keep the outside of the gear soft enough without the heat gun and you can finish thermoforming the plastic gear to exactly match the worm. Plastic worm gears are very popular because they are quiet, and can have no backlash because in the final adjustment they are tight and use elastic deformation of the gear (instead of a metal gear and worm which need a fixed clearance because there is no elastic deformation).

16:40 I would think if instead of using the long axis, one can just use the in/out axis to cut the worm gear profile… It will cut an inward concave groove in sort of the same way a proper worm gear is. The only real problem is the radius of the cutter, which can be solved by using a custom rotating cutter with an adjustable depth, similar principle to a fly cutter but specific for the application. A makeshift one made from a broken boring bar with a carbide tip ground to profile might be the ticket, though not adjustable unless mounted on a boring head. Though, 22:30 is also one smart way to do it

Either make a hob or for a small worm gear, simply make a tap at the pitch and pressure angle you need and use it as a hob.

I've been known to use acme threaded rod for worms, with regular gears. Figure the 29 degree flank angle on the threads works with the older 14.5 pressure angle on diametral pitch spur gears. Yep, I'm lazy. Not for transmitting large powers, but great for establishing odd angles.

Nice work! Could you use thrust bearings instead of spring washers to take up the slack but retain the rotational motion of the gear being hobbed?

@donavinnezar

Ай бұрын

yes it would be better can also use a double nut setup to lock the nut in place so it doesnt tighten or loosen on its own , ideally youd use a thrust on both ends

Thrust bearings on the gear blank side of your hob setup would tighten that whole rig up quite a bit.

Maybe you could just cut a slanted gear and lap the gear in? ie. make an aluminum screw and use that with some abrasive to lap the gear to the right profile. I think that would be a cool experiment at least and I think would be easy to do in a home shop

TIL about free hobbing. That's such a clever technique.

Or you could make another 'worm' from tool steel and turn it into a gear 'hob'. Plenty of videos on KZread.

@artisanmakes

Ай бұрын

Yeah, that’s a much bigger and involved project there

I have the smaller CALOR GAS bottles here in Dublin, IRE. I have about 10 of them and I'm weary about taking the head valve off. How do u know if there is no more GAS left in the bottles. The ones I have have been sat in a shed for 20 or more years. Some of them have someth in them bcos I feel it moving inside the bottle. Any advice would be greatly appreciated. I want to build a stove for my workshop. It's bloody freezing in the winter and I'd love to be able to heat it up then. Great video but the tool u made is beyond me pal.. LOL What would be the best wrench to take the valve off with? I enjoyed the video. It's a bit hazy in the picture though mate. Maybe the lighting is off a wee bit bt I still enjoyed ur video anyways..

12:00 Feels like cutting and bending a tab on your copper softener jaws to retain them during loading/unloading material would be a nice, but simple upgrade.

Some lubricated acetal/hdpe will give you a nice alternative to spring washers for retaining the gear while cutting ;-)

Now you get the joy of trying to adjust for backlash and have to readjust it every time the temperature drastically changes

Agreed a low friction low use straight cut gear would last a long time in a dividing head.

Idea: Make a lathe chuck backplate with teeth cut into its perimeter so you can turn it with a worm like a rotary table, eliminating the need for an indexing head while also adding the ability to mill in polar coordinates using a mini spindle on the cross slide.

Newbie here, thankyou for being so informative and clear. Bit over my head but I'm learning. What type of steel stock do you mainly use im in Aust as well tks

@artisanmakes

Ай бұрын

Most of the time I use cold rolled mild steel. Here it is sold has Bright Mild. It’s relatively cheap and works for most of what I do.

Man, really liking this channel. Keep it up and you'll be drafting ToT. This might be a dumb question, however why don't you use a hacksaw blade while cutting a part off in the lathe? I can see a full size hacksaw potentially becoming entangled with the chuck, but what about just using the blade? Or is that one of those cardinal sins taught to fresh newbies?

@artisanmakes

Ай бұрын

If the hacksaw ever grabs on the material whilst the chuck is spinning I could see it very easily pulling me into the spindle. Not a risk I’d like to take on this big lathe.

My first worm gears where a complete mess, especially because they were for an architectural feature (opening large windows in an industrial setting) and i really wanted to make them myself when i probably should've farmed that work to a professional. :)) Years later i figured that i could've bought a pump reduction for oil type pumps, which had the exact size and large brass gears i wanted.

Straight cut or with the actual radiused profile, it's still a worm wheel. That radius is used most times (but not always) when the drive loads get higher or better tooth longevity would be helpful. So in reality, it all depends on what the worm and worm wheel were designed to do and for how long. And fwiw, all threads and gears can't ever be made to be "perfect" if your metrology to measure them is accurate enough. What that's normally referred to is there lead and lag pitch errors. Moore Tools in the U.S. spent massive amounts of money in effort to produce as close to perfect lead screws and nuts for their jig borers and grinders before very high accuracy dro's and then cnc were invented by grinding and then precision lapping. There final errors in thread pitch weren't out by much, low millionths of an inch in fact. But they were still there no matter how much time, effort and money they invested. Luckily and for us when used in something like a rotary table or dividing head, any pitch errors are divisible by the gear ratio between the worm and worm wheel. So the accuracy can be much better than the worm and wheel itself.

That power feed had a metal worm and a plastic gear. Would it work to cut a metal worm (as done in this video) and 3d print a matching gear?

Cool Work!! Can you make bevel gears too!

Hi Artisan, I'm about to buy the same Sieg 2.7L as yours. Since the First video you made about you price increased from 1500 aud to 2450 aud. Should i still consider buying It or do you think the price Is still excessive for It? I still cannot find a good One in the market with the same dimension and caracteristics. Please let me know your opinioni id like to buy a good machine for the right price. Also It It was good, what platform do you suggest to buy It from? Thank you