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This video provides a four hour introduction to making gears.
Jose says: "Have you forgone the pleasure of building a small geared engine simply because the thought of having to cut your own gears brings a shiver down your metalworking spine? Even if can muster up the nerve, you realize that so called involute gear cutters cost an arm and a leg. Then you need a set of eight cutters to enable you to cut the entire range of teeth for 12 to Rack. The cost in cutters alone can reach well over $200 before you even begin thinking about arbors to hold them.
It's no wonder many of us will simply go to the nearest gear vendor and put down $50 -$60 for a pair of brass spur gears.
In this video you will learn the secrets of the HOB. You will not only learn how to use a hob, but you will also learn how to build one from scratch right on your small to medium size lathe and small milling machine. For a total cost of about $3 in materials you can make a hob that will not only enable you to EASILY make any number tooth spur gear as well as even a worm and worm gear.
You will be amazed at how simple gear making can be!
You can make any diametral pitch hob by simply following the easy Diametral Pitch chart that is included as part of the video. The video shows a 1/10 pitch spiral and straight hob being made and then used to make gears of various diameters. You will not need to compute anything.
Once you have used a HOB to cut a gear you will wonder why you would use anything else!"
(about 240 minutes)
This video was added to our catalog on December 23, 2003 in Metalworking::Threads and Gears.
Product availability: very long wait
This is an awesome video. Packed with technical knowledge and actual machine work. The only downside is Jose's annoying use of an incorrect value for Pi. Nonetheless, the gears he produces fit well.
Another Jose classic. Gear making to me has always been one of those tasks that I looked at as something only the hard core guys did. I thought it was something that you couldn't do without extremely high dollar tools and equipment. But as usual this is where Jose shines through, an average guy, using average tools, in an average hobby environment making parts that you wish you could make. But hey this is an instructional video so chin up there little buckaroo, you'll be turning out gears in no time.
He really does a good job of showing just what can be accomplished in the home workshop. He shows you how to make a single cutter as well as how to make a hob for cutting a wide range of gears. He even showed how to use a tap to cut a worm gear which I'd never seen and it was really cool to watch. Definately one I highly recommend.
Great video and great information. I would never have thought gearmaking was within my reach. The demonstrations are classic Jose and lots of great information. Perfect for the home hobbyist on a budget as usual with Jose's videos. I think I will buy this one, it is that good. Better camera work this time and Jose's delivery is as dry as ever, but that is part of the charm.
Very Informative. Was very pleased with the down to earth way the video was presented.
I found this video very informative. Based on this I am going to try my had at making a set of gears. I would highly recommend this video for anyone.
The video focuses on hobby gear making and as such presents excellently! I will rent it again when I actually have gears to cut.
Somewhat ponderous and slow in pace, but packed with good material. A few more close-ups would have been good on some of the operations.
Very good if a bit long winded. I think this DVD should be part of the hobby machinists' collection or at least be seen at least once. I certainly got something out of watching it.
Fick
Does what it says: tells you how to make gears. If that's what you want to do, this will tell you how. Recommended.
A little slow, but the video (photography) was done very well, and I liked the explanation of formulas a lot. I also liked the fact that the work was done on a rather rudimentary machine which is probably what most of us married guys own.
I found this video to be extremely informative. The video images were clear, and the audio was of decent quality. The explanations of the math could be a little hard to follow, and there were references to accompanying printed material that weren't included. Even so, I considered the rental cost to be money well spent.
Boring, 4 hours that could've been fitted in 40 minutes if it was thoughtfully planned, scripted and edited. The idea and production resolution is good, but instead of showing a calculator close up for 10 minutes and keep using words like "utilize" over and over again, why not make charts and illustrations on a computer? Many thanks for the fast forward button!
Very Interesting. The video is a little long. He could have probably edited it down to 2 hrs, but if you like watching metal turn it is easy to watch.
VERY highly recommended. Using nothing more then a small piece of tool steel, he shows you how to make any size gears, from 12 teeth up to as many as you want. To do this with traditional cutters, you would need a complete set of cutters that would cost ~$200. In addition, he shows you how to make the process nearly automatic-- after the first time round with the indexing head, all you have to do is feed the stock, the rotation is done automagically by the cutter.
He shows you how to make both spur gears and worm gears, as well as all the tools, jigs & fixtures needed to make them. While he doesn't cover it in depth in this video, he shows you enough of his home-built rotary table that you could probably build your own after watching this video (he covers it in depth in another video).
I do agree that the video is a bit slow. In an ideal world, it might have been edited a bit. Regardless, the sheer depth, detail & quality of information makes this an easy 5 star video.
I'm a newbie and the video is a big help in the decision process of buying the correct tooling. I should save a lot of money because of this video.
The presenter does a very good job with the practical demos. His presentation of the math involved is a bit confusing as he acknowledges later in the DVD. All through the video he uses the wrong value of pi which he does not acknowledge. At the end, I was still confused about what, exactly, diametral pitch is and how he related the cutting of gears using the American way to his application on his metric lathe gear train. The video is worth watching for the how-to on setups and actual gear cutting.
This video should undergo an editing process to compress the time spent on elementary items. There is quality here...it just takes too long to develop an idea or process.
Now this is what I was expecting to see and MORE! This DVD is VERY informative! Too bad I did not find this DVD 6 months ago and $350.00 earlier! I broke a gear on my lathe and paid to have one made. You will need to watch and listen carefully because he makes it look so easy with his little machines. I also found his use of "pie" and that lousy calculator annoying. His description of "diametral pitch" stunk - but using a "Machinery's Handbook" or a good text book you can figure it out. Worth renting!
Although it is 4 hours long, it is chock full of gear cutting and machining information. A complex subject is simplified. Jose proves that you can do a lot with a little. The great thing about Jose's info is that it is scalable.
Because Jose keeps the camera running for each of the gear projects, you get to see all of the steps he takes and he proves that it works. He also shows his dividing head, shop-built vertical mill and several accessories.
If you want to cut gears and are patient, this is a great DVD. Our machine shop class instructor told us, "if you are not patient, then you probably will have trouble being a machinist".
This Video was much more than I expected. The camera work was pretty good. Although it was a little long, there should be no reason I would have a problem milling a gear if I need to. If you are on the fence as to whether or not to rent this video, just do it! It will answer questions about making gears that you did not even know you wanted to ask. Excellent Video!!
I read most of the reviews of this DVD and I generally agree with them; there is a lot of useful information here but it takes too long to present it. It could have been edited down to about two hours. There is one piece of information that was missing. Near the beginning there is a demonstration of making a gear using a single point cutting tool which was apparently ground with an involute profile. However, there was no mention of how this tool was produced. Also, there could have been more explanation of how a hob produces the involute shape.
Excellent video. Definitely a recommendation for anyone who wants to experiment with gears.
Only two negatives: the presenter never shared how to cut the tooth profile in the original example. However, because hobbing seems so much faster than the first technique, its not a big loss.
Also, the fact that gears works perfectly was amazing, considering that PI is 3.1416 not 3.1461. He uses the wrong value throughout the presentation.
It wasn't too bad - needs some professional film making assistance. Sound could have been much better.
Used the incorrect value for Pi in every calculation.
Stated that he was going to show something, but never did!
Got more help than I thought I would.
The DVD was very informative. I got a lot out of it. There is however one thing that I must comment on: throughout the DVD he repeated "pi" as 3.1461 so I am confused is he using a "swag" factor, because "pi" is actually "3.1415...". No big deal, just a little correction.
Although the information was good, it took way too long to present it. The narrator would dwell on things that were immaterial and (I hate to say it) boring. The disk was four hours long and could have been presented in less than two. I enjoyed the information but had a touph time staying awake watching it.
R.L. Buchanan
Jose knows his stuff. He's easy to follow, and I can't wait to see his series on how to build a milling machine.
Very good video. I plan to either rent it again or buy it.
A good video for the beginner machinist wishing to get involved in gear cutting. Could be a little stronger in the mathematics of determining gear dimensions etc.
Loved this one.
If you have any intension's on creating your own gears, this is one video you need to see.
I rate it: 10 out of 10 stars!
S...L...O...W... paced. After the first 30 minutes, the friend who watched it with me and I were both struggling to keep our eyes open. I'm sure there's good information there, but we didn't even make it all the way through. Closeups are nice, but for gosh sakes - show your face once in a while! It's like he's "Wilson" from "Home Improvement", except you don't even see the top of his face - just his hands! And if you can't figure out how to do the very _basic_ math he beats like a dead horse, you probably shouldn't be working with machine tools in the first place. Not recommended - unless you're short on sleep.
If you want to make gears in a home shop, you should rent this video. It will inspire you at the very least, and may actually contain all the information you need to cut gears successfully. That being said, the pace was ridiculously slow. I think he actually films the cutting of 25 gear teeth, one at a time, and narrates how he's advancing the dividing head. Once or twice would have done the trick. I watched a second time to take notes, and I ran it at 2X fast forward on the DVD player, which was about right. And a last word, my complements to Jose who is clearly a talented craftsman, if not the best producer.
Extremely thorough. the pace is very slow in parts, but that's not all bad - there is a lot to absorb. Just pick a couple evenings when you were going to watch re-runs anyway :) It covers thoroughly the making of single-point cutters, worm gear cutters and how to avoid those expensive 'standard' gear cutters. He also covers both making and using that poorly understood device the gear hob.
Included are clear instructions on making the cutters but he also presents easily understood methods of hardening them to withstand use in the real world of machining precision gearing.
In the video the author discusses (and demonstrates in detail) plain gear making, gear hobbing, hob making and worm gear making. If you have ever priced one of those beautiful 40:1 3.5" worm gear sets from your neighborhood Boston Gear dealer then you will want to view this video!
The demonstrator over works the English language so badly that it becomes annoying. Getting past that, it's worth seeing. Rudy has the best tapes out,but at the other extreme talks so slowly it becomes annoying.Or maybe it's me.
Very thorough, VERY well done video work and the audio was also first rate. Over-all the video would have benefited from some aggressive editing for time. On the plus side of that criticism, the greater time gave opportunity to absorb the information.
I would have liked it if the author had shown in more detail the machinery setup that he has. Highly recommended.
Worthwhile video, good content but could have been shortened to about 3 hours by talking a bit faster and editing out long pauses in narration. Watching the calculations live including misskeys was painful. Should have included instructions for making the the single tooth cutter or not shown it.
I thought this video was very good. The production quality is not first rate but the information was presented in a logical way. For someone contemplating gear making in the home shop it's just right.
Jose makes it looks so easy. I think with the information from this instructional video I can be making the gears I need, and doing it in the foreseeable future.
Some people have complained that this video is a little long, and indeed it is.
However, it’s long because the author shows you every little detail involved in making all types of gears; and in my opinion this is a good thing.
If you have a passing curiosity and need some entertainment then this video will bore you. If you actually want to make some gears then you’ll appreciate the detail and find the video invaluable. I know I did.
Excellent DVD. Rent this one over the others hands down.
Great how-to video...tons of info and it's very clearly presented. The only negative is that the video quality isn't up to DVD standards. It looks like it was transferred from an old VHS tape, but don't let that stop you from renting it. The content is super.
Excellent Video If a picture is worth a thousand words the this video is worth a million. Instruction is very clear answered many questions I had.
This DVD was a little slow moving. I wouldn't really recommend it. ~ Sorry ~ Paul
I found the video very educational. I am a very inexperienced beginner, however I have a pretty good collection of machines that I am trying to fix up and learn to use. I bought a lathe that had a stripped gear so decided to make one. Watching this video saved me $175.00 because I learned how to make the gear I needed. While some dislike the fact that it had a lot of time just watching the machines do their work, I found it fascinating to see how it worked. He explained very well, every step he did so there was little left to the imagination.
I highly recommend this video to anyone wanting to learn about gear making. I now have to learn how to make a hob because I found another gear in that lathe that is bad. I feel confident in doing this because this was also very well explained in the video.
The video does show ways to get the job done, but there are problems. The guy confuses terms often, and does a few odd things. When you start to cut gears, check the math that he gives you against other sources, and don't use his version of the number pi. I don't know if he is dyslexic, but he used 3.1461 for pi, instead of 3.1416. That could explain part of why his gears seemed to have a pretty large amount of slop in them. Also, the 'nice looking' black on the hob from heat treatment will reduce the accuracy of your gears. Clean it off, then temper it before use.
This movie did a fairly decent job of demonstrating setups and process of actually cutting the gears.
It is fairly lacking in the actual formulas to be used to calculate dimensions on the hobs for various sizes, and when formula's were ran through, several errors were caught (like the value of PI was given incorrectly several times).
Overall, I think watching this movie, combined with a book that has proper formulas on the subject, would be a good combo.
I thoroughly enjoyed this film. Showed exactly the info I wanted. Did kind of drag on some. Mistakes like I make time to time. so all in all it was well worth the wait to see.
Neat. Certainly an inexpensive way to cut gears.
It was a little long, could have been made in half the time.
Good general information
After taking a basic milling class, I see the cost savings of making the tools (ie. gear hob) yourself. He did not explain how to "sharpen the tool" after he demonstrated the heat treatment of the hob. It seemed a little long but I thought he was detailed enough to make things clear. I was happy with the video, and will rent more.
The presenter is definitely not a public speaker but he gets it across. He uses his home built lathe, mill and dividing head to demonstrate single pointing (boring) a gear then shows how to fabricate a 'home made' hob. He has a 12 hour video on making a dividing head but I think I'll buy one from Grizzly for a couple hundred dollars.
A very good disk on making gears. Thanks! Alvin
This video was very complete and well laid out. It was up to the standards of Jose's other videos.
Good grief is all I can see. If you suffer from insomnia, this is for you! The guy is just terrible. Even if you can put up with his use of 'big words' like situate and utilize, it's hard to watch a calculator and listen to him stumble all over simple math, confusing terms. To his credit, I'm sure he knows his stuff and can make gears, but he is totally incapable of presenting his knowledge. The first time he entered pi as 3.1461 on his calculator I thought he just had dyslexic fingers, but he uses 3.1461 every time! Lord only know why he bothers with 5 significant figures, perhaps to impress the audience? This is about as bad as it gets. He obviously runs his own camera and does not do any planning. A few times he actually does some work off the camera, most of the time he leaves the camera on to get to his impressive 4 hours. This could (and should) be a half hour movie, an hour if you want everything in excruciating detail. Unless I fell asleep at critical times he did not go into how he ground the cutter for the gear profile and other interesting tidbits that could fill the time better. But then again, that process probably took 4 hours and is on an upcoming sequel... I am sorry to say there is some good info included - this was my first exposure to hobbing - so I know there will be more people suffering through it just because of that.
