FreeCAD For Beginners 33 | Gear Assembly, Animation and Export to Video File

[@brandonbeaumia]

00:00 Intro 01:19 Creating Gear1 02:07 Adding Local Coordinate System to Gear1 02:49 Creating Gear2 04:25 Adding Local Coordinate System to Gear2 05:00 Assembly4 startup 05:49 Importing Gear1 into Assembly 07:58 Importing Gear2 into Assembly 09:30 Adding formula to rotate Gear1 13:10 Adding formula to mesh and rotate Gear2 with Gear1 18:21 Exporting the animation as a video 21:00 Outro

[@MangoJellySolutions]

Thank you as always your a star!! 🌟🌟👍👍👍

[@keef29]

Great video - thank you! The correct distance between gears can be calculates as: (Module of Gear 1 + Module of Gear 2)/2 x (Number of Teeth on Gear 1 + Number of Teeth on Gear 2)/2. Which is 48.75mm.

[@HK-uq9by]

This is the distance between gear centers.right?

[@MangoJellySolutions]

Thanks for the info and adding that. Really helps others and enriches the information. Appreciate that.

[@chrisBruner]

Very good info. How did you come up with the number 14? Just a guess or a calculation of some sort?

[@MangoJellySolutions]

It was a lucky guess for the offset. Trust me I nearly fell off my seat when that happened.

[@liboyan7010]

@@MangoJellySolutions how to find the exact value?

[@japreja]

@@liboyan7010 360 / NumberOfTeeth / 2

[@dottybucannon7527]

Verry nice, a special for the simple gear parts sometimes (most off the time the project are to long), so there is more time for animation

[@josemartinez-xk1qc]

You are so expert 🎉🎉🎉🎉🎉i just got mine and i hope to learn alot from you 😮🎉🎉🎉🎉🎉make more

[@MangoJellySolutions]

Great to hear and thank you. Glad your enjoying 😎😎👍👍

[@CM-2000]

Hi MJS, thanks for your helpful tutorial. I'm using version 0.20.2 and can't find the animation export? The "Animate Assembly" display also looks different and there is no Save button! Can you please help me? Thank you. CM2000 Sorry, it's done. I made an update in the Addon Manager and now is possible. ;-)

[@znelson32]

This is fantastic! Thank you!

[@MangoJellySolutions]

You're very welcome!

[@davidapp3730]

Thank you for that video.

[@osenseijedi]

I wish there was an actual solid simulation (where the objects actually push against each other). Do you (or anybody) else know if freecad can do that ? Or maybe there is an opensource tool I could use for that ?

[@richardfeist9340]

This is a great video. Everything worked as instructed until clicking on the Save button. I receive a screen message that "Python Opencv is not loaded". Can you offer a solve to this problem? Many Thanks!

[@sjn8099]

Only great. Thank you so much 🙂

[@redwinecustomfabrications8970]

Great video, But too advanced for me. I have sort of got my project animated / working for my assembly but I am trying to get 4 parts rotating at different speeds and directions. What do I need to do to achieve this? They are not gears so i am not able to use the tooth count.

[@rklauco]

Another great tutorial. Thanks a lot!

[@MangoJellySolutions]

Thanks 😊👍

[@russellw5447]

Had some issues during the import into assembly due to not fully selecting the LCS in Parent option. easy to overlook. Many commands require definite instructions to & from so to speak. I slow the tutorials to 50% so I can keep up. 8:43 when the Gear2 is imported My gear didn't drop into the XY Plane when the LCS Origin was selected. I adjusted the Z Trans to -10 and fixed it. Darren any reason? Once again small beer but it slows a New user like Me down until I figure it out? Anyway good practice figuring it out for myself I suppose. Gotta love animation, I also notice subtle difference in appearance i.e. On the Pinion gear my Co Ordinate Crosses are buried in the gear yet the larger gear they are as per Darrens, I presume these are possibly individual user settings or preferences or something to do with the offset I adjusted manually?

[@roccocoyote]

Perfect - Thanks!

[@MangoJellySolutions]

You're welcome

[@AppliedMathematician]

Last time I did do blender to animate a gearing. That was a while ago and CAD sketcher looked promising. But I am a bit afraid of blender, once you get good at it it will take self control to not go on a tangent to make the perfect pitch presentation. At the moment I prefer FreeCADs traditional CAD workflow though.

[@MangoJellySolutions]

I understand where you come from with blender. There is so much to learn and way to many keys to remember for my liking. I do use Blender but I spend most of my time in CAD.

[@russellw5447]

Hi Darren, When attempting to export I get a "OpenCV not installed error" I appreciate not your issue but can you suggest where I can educate myself and resolve. I've tried Forum FreeCAd and waiting on responses. I'm a New Linux user also so the learning curve is steep. I've tried the FreeCAD Forum but it seems there are a lot of people with varing opinions but no real answers? Regards, RW

[@gweliver]

Thanks for this very informative vide0 (like always) 17:51 My question is concerning adding your "Lucky Guess" of 14 to "mesh" the gears, what made you come up with or even to know to add an offset in the first place and what are you off-setting, "X" "Y" or "Z"... or what else? I really need to know how you do this, is it from other CAD programs? It really makes me feel hopeless, because without a formula or knowing where to go to find the formula, it quickly goes from working in sound Engineering practices to just fidgeting with buttons... LOL "Please Help" with some background of where to turn to for answers? Thanks

[@bezelyeCigerPilav]

It is actually 360/(13*2). Because 2nd gear has 13 teeth and you need to shift its phase half of a tooth, to correct the deliberate mistake of the beginning.

[@stewartpalmer2456]

Beautifully explained. Umm, would you be willing to CAD then animate Antikythera Mechanism next. Just Kidding. Your explanations are Always top notch.

[@MangoJellySolutions]

Thank you glad you enjoyed. Once the handle of the mechanism is found I will animate it lol.

[@VladekR]

Ask ClickSpring how to animate Antikythera Mechanism

[@stewartpalmer2456]

@@VladekR I was joking. I've seen several documentarys already doing this. Brilliant device.

[@stewartpalmer2456]

@@MangoJellySolutions Some theories have it as a water powered device.

[@davescorneroftheworld1147]

What about SPROCKETS as apposed to GEARS. Can FreeCAD make SPROCKETS? Thank you for your time.

[@roccocoyote]

At 1:33 look at the Part Design menu. Right above the Involute Gear there is Sprocket

[@davescorneroftheworld1147]

@@roccocoyote THANKS YOU! I have gotten what I need. AGAIN THANK YOU SOOOOOO MUCH!!

[@GeezerGramps]

I have a question, your cursor has a tail & pointed head. My cursor is a triangle with rounded tips. Makes it hard to precisely choose a line or point. I’ve looked all through Freecad & the inter web & can’t find a solution. I’m using the app image on Linuxmint Lmde. Do you happen to know how to change it?

[@mehmetbilgi952]

I think it's about mouse theme. I have the selection of "Adwaita" theme. (Fedora/XFCE4)

[@GeezerGramps]

The cursor on Linux is just fine, it only happens in Freecad.

[@MangoJellySolutions]

The cursor I am using is the large cursor in accessibility settings in ubuntu. I use a large cursor for presentation to help people see where it is.

[@m.galindo2087]

I’m with FreeCAD 0.21.1 but when trying to save the animation I got a message: Python Module OpenCV not installed? (Ubuntu)

[@SLJeans]

I'm having the same issue. Any help would be appreciated.

[@VladekR]

Great stuff here👍👍, but struggling to find how to save other animations

[@Not-Only-Reaper-Tutorials]

very nice!

[@yavuzylmaz2445]

İ can make a pad to this gear shape. When i select gear it selects in a box then fault at making pad its not selecting the sketch like as yours Why?

[@HK-uq9by]

My involute gear option on part design menu is OFF! Anyone knows why? Thanks

[@mivison]

Thanks!

[@MangoJellySolutions]

Thank you for the donation. Most kind

[@aleksejsusakovs5302]

Like ❤ like 🎉

[@martinxp2535]

I slowed the animation but see it slows down in the video anyway. Also see it is better to centre the assy on the screen before saving the video.