This was a great help to me. I'm currently attempting to design metric gears using codeblocks in tinkercad and as such needed to know exactly how the shape of a tooth is defined. This combined with some videos on the maths you implemented in your spreadsheet and a document on the standards of metric gears was just what I needed for my little project.
Hi Jan! Glad this helped. Yeah, one of the reasons I made this video was that I remember finding it hard to find a clear explanation of the gear tooth profile shape. Would love to see your project when it’s done!
@@RELUvance Oddly enough the problem I'm running into isn't so much the maths now as it is tinkercads 200 primitive limit on codeblocks. So I have to find a way to define a tooth in as few as possible primitive shapes. Maybe generate the tooth and blank gear separately and assemble them manually to get around the limit. if only it was possible to import parts or stl files into codeblock projects, sigh. still the limitations are half the fun.
This is my first video so please let me know if you found this helpful or if there was anything I can do better! What other types of topics would you like to see covered here?
Hey Dustin...more videos, please. I watched your planetary gears and the spur gear add-in which I knew nothing about and now this to see how a gear is really made with all the correct geometry. I started following along with you and stopped when you got to the Excel piece. I will download that later and watch the rest of it. Thanks a lot. Irv in Florida
Is this gear parametric? Can I modify it by changing the variables? There was a constant on the tooth design and also the profile is being imported as a constant.
1. How do you select the point of intersection of the Circular Pitch (CP) in order to retrieve the correction factor 11:40 it seems your cursor autoselects a point, mine is simply guesswork... 2. How do you manage to pick the points where the spline intersects the addendum 12:20 for creating the tooth tip and the lower end? 3. How do you select the spline for the mirror operation? Thank you, anyone who responds.
For anybody else wondering about item 3. the author forgot to say "I will now edit the sketch in which the spline was inserted to" at min mark 09:56 it took quiet a while for me to watch the video over and over agian, to spot the different state of the tree view. I am still unable to make the lines exactly at the intersection...
I know this is way behind the timeline. I see when you imported the .csv file it created a sketch under a Sketch item. Then it magically appeared in the SpurGear: object's sketches. Not sure how you got it there. NewBee.
Thank you for your video. I need to make "shifted profile gear" (I believe there are no script or tools for this for free) and your video is very helpful!
@@steelstone According to Google, it is "Profile Shifted Gear", Gosh!. This is unique technique to make special tooth of gear. Usually they use cutting tools call "Rack" or "Hob" to cut tooth of metal gear in factory. The "Profile shifted gear" is made by moving little inner or outer these tools. So, this is called "Shifted Profile". Also, it called "転位歯車" in Japanese. This "shift" makes change of outline of tooth of gear. Then, we can change center distance of each gears even same gear ratio, or change gear ratio even same center distance. This is some times very useful if there is limitation of center distance. And also if tooth number under 17 (pressure angle is 20 deg), the base of tooth will have "under cut". Profile shifted technique will increase the thickness of base of tooth, and this makes stronger gear. This is very useful but not so famous technique We can build anything with 3D printer. I hope "Profile Shifted Gear" should be major technique because we don't use any cutting tools but just drawing.
Very nice tutorial. Thank you for using Fusion 360. I was an Inventor user and miss the gear accelerator functionality. I am interested in gearing from a supercharger drive standpoint, both automotive and aircraft engine.
@@RELUvance Could you please grant 'edit access' to the spreadsheet you included in this video? I am trying to use the spreadsheet to model a supercharger gear from an Allison v12 and google sheet is locked down to 'view only'. The owner must grant the access. If you like, I'll share the result. I plan on modeling some P&W 2800 supercharger gears as well. They are spring dampened to help deal with the torsional vibrations. Pretty cool.
@@mbhoward Hi Mark! If you just click on File -> Make a copy , it will make a copy of the spreadsheet on your google account and you can use it however you want... let me know if it works!
Hi Nathanael, try opening the .CSV file in a text editor like notepad and have a look to see if it is structured correctly or maybe a blank line got added for example... If not let me know, and you can email it to me for me to give it a try for you if you want.
@@RELUvance The file looks like it's formatted correctly when I opened it in notepad, I'm not sure what else to try at this point. If you want to look at it I can send it over.
Nice job ! The angle you measure at 11:50 only depends on the pressure angle 20°. It is a constant regardless number of teeth or module. Its value is (TAN(PI/9) - PI/9) rad (so about 0,854° as you report), knowing that (PI/9) rad = 20°. I draw a fully parametric sketch for modeling gears too, it can be seen here ruclips.net/video/dpLONXTY9FI/видео.html
This was a great help to me. I'm currently attempting to design metric gears using codeblocks in tinkercad and as such needed to know exactly how the shape of a tooth is defined.
This combined with some videos on the maths you implemented in your spreadsheet and a document on the standards of metric gears was just what I needed for my little project.
Hi Jan! Glad this helped. Yeah, one of the reasons I made this video was that I remember finding it hard to find a clear explanation of the gear tooth profile shape. Would love to see your project when it’s done!
@@RELUvance Oddly enough the problem I'm running into isn't so much the maths now as it is tinkercads 200 primitive limit on codeblocks. So I have to find a way to define a tooth in as few as possible primitive shapes. Maybe generate the tooth and blank gear separately and assemble them manually to get around the limit.
if only it was possible to import parts or stl files into codeblock projects, sigh. still the limitations are half the fun.
This is my first video so please let me know if you found this helpful or if there was anything I can do better! What other types of topics would you like to see covered here?
very good video, I would like to see more examples on rack and pinion gears, and more on animations of for example the caterpillar of a war tank
Why didn’t you just use the spur gear generator script?
Hey Dustin...more videos, please. I watched your planetary gears and the spur gear add-in which I knew nothing about and now this to see how a gear is really made with all the correct geometry. I started following along with you and stopped when you got to the Excel piece. I will download that later and watch the rest of it. Thanks a lot. Irv in Florida
Thank you. I had been looking for just this specific design tool.
You are welcome!
loved it brother
Subscribed instantly when I heard "Hello Everyone, Dustin here"
clear instruction, very useful video
This video is very useful for me. Thank you
Thanks Vijayan! I am glad you found it useful!
That was cool. Imagine my disappointment when I realized you have only 3 videos. You seem like someone I could learn a helluva lot from.
add more significant digits past the decimal point in the csv to get more resolution for the teeth spline. 2 is not enough for some cases
Is this gear parametric? Can I modify it by changing the variables? There was a constant on the tooth design and also the profile is being imported as a constant.
How do you draw the profile for an internal gear of a ring gear that would mate with the spur gear?
I guess you do a normal gear wheel and use it as a tool to "cut" a slightly bigger disc. The resulting ring would be your internal gear.
1. How do you select the point of intersection of the Circular Pitch (CP) in order to retrieve the correction factor 11:40 it seems your cursor autoselects a point, mine is simply guesswork...
2. How do you manage to pick the points where the spline intersects the addendum 12:20 for creating the tooth tip and the lower end?
3. How do you select the spline for the mirror operation?
Thank you, anyone who responds.
For anybody else wondering about item 3. the author forgot to say "I will now edit the sketch in which the spline was inserted to" at min mark 09:56 it took quiet a while for me to watch the video over and over agian, to spot the different state of the tree view.
I am still unable to make the lines exactly at the intersection...
I know this is way behind the timeline. I see when you imported the .csv file it created a sketch under a Sketch item. Then it magically appeared in the SpurGear: object's sketches. Not sure how you got it there. NewBee.
Thank you for your video. I need to make "shifted profile gear" (I believe there are no script or tools for this for free) and your video is very helpful!
Awesome! Glad the video helped you!
What do you mean by "shifted profile gear" ?
@@steelstone According to Google, it is "Profile Shifted Gear", Gosh!.
This is unique technique to make special tooth of gear. Usually they use cutting tools call "Rack" or "Hob" to cut tooth of metal gear in factory.
The "Profile shifted gear" is made by moving little inner or outer these tools. So, this is called "Shifted Profile". Also, it called "転位歯車" in Japanese.
This "shift" makes change of outline of tooth of gear.
Then, we can change center distance of each gears even same gear ratio, or change gear ratio even same center distance.
This is some times very useful if there is limitation of center distance. And also if tooth number under 17 (pressure angle is 20 deg), the base of tooth will have "under cut". Profile shifted technique will increase the thickness of base of tooth, and this makes stronger gear.
This is very useful but not so famous technique
We can build anything with 3D printer. I hope "Profile Shifted Gear" should be major technique because we don't use any cutting tools but just drawing.
@@user-RaahNeko So I did it. A fully parametric gear construction inside Fusion 360, profile shift included. See my link in another comment.
Very nice tutorial. Thank you for using Fusion 360. I was an Inventor user and miss the gear accelerator functionality. I am interested in gearing from a supercharger drive standpoint, both automotive and aircraft engine.
Thanks Mark!!
@@RELUvance Could you please grant 'edit access' to the spreadsheet you included in this video? I am trying to use the spreadsheet to model a supercharger gear from an Allison v12 and google sheet is locked down to 'view only'. The owner must grant the access. If you like, I'll share the result. I plan on modeling some P&W 2800 supercharger gears as well. They are spring dampened to help deal with the torsional vibrations. Pretty cool.
@@mbhoward Hi Mark! If you just click on File -> Make a copy , it will make a copy of the spreadsheet on your google account and you can use it however you want... let me know if it works!
@@RELUvance Hi Dust! How silly of me; I've made a copy and will play around with it! Thank you!
@@mbhoward Glad it worked! And yes, would love to see how it turns out!
When I attempt to import the CSV file for the involute curve all I'm getting is a straight line that doesn't quite reach the Addendum Diameter.
Hi Nathanael, try opening the .CSV file in a text editor like notepad and have a look to see if it is structured correctly or maybe a blank line got added for example... If not let me know, and you can email it to me for me to give it a try for you if you want.
@@RELUvance The file looks like it's formatted correctly when I opened it in notepad, I'm not sure what else to try at this point. If you want to look at it I can send it over.
@@nathanael_opoulos sure email it to me: dustins2020 at gmail. I’ll take a look.
i am having the same problem, did you guys found a solution ?? great video!! keep the good work!!
Nevermind, i found the problem. It happens to be the correct spline, but in a different plane
Sorry to be a pedant but the term is module. That said, good vid. :)
Nice job !
The angle you measure at 11:50 only depends on the pressure angle 20°. It is a constant regardless number of teeth or module. Its value is (TAN(PI/9) - PI/9) rad (so about 0,854° as you report), knowing that (PI/9) rad = 20°.
I draw a fully parametric sketch for modeling gears too, it can be seen here ruclips.net/video/dpLONXTY9FI/видео.html
your circular pattern should not use bodies... you should use faces instead
you go too fast for newbies, slow it down a bit>
Thanks for the tip RJW!