FreeCAD 0.20 - Basic Exercise #2 - GASKET (EN)
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- เผยแพร่เมื่อ 3 มี.ค. 2022
- The next FreeCAD exercise features a gasket. Perfect to learn FreeCAD Sketcher Workbench.
You will learn how to use the Polyline, Circle and Rectangle tools and learn about dimensioning and about geometric constraints.
Before watching the complete video, make sure you download the exercise here:
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architects, engineers, and hobbyists worldwide. It offers an intuitive interface and a wide range of features, from basic geometry creation to complex parametric modeling.
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Former lecturer for basic CAD training in the engineering program of the Department of Environmental Planning/ Environmental Engineering at Trier University of Applied Sciences.
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#FreeCAD #PartDesign #Exercise - วิทยาศาสตร์และเทคโนโลยี
Good exercise. Please keep them coming.
Of course I will
I have very-very little experience in 3D design (I started with Fusion 360 but due to licensing issues I decided to switch to something free), but I was able to finish this sketch based on the technical drawing after watching your previous videos in this playlist. You presenting the subject very clearly and its great that you give tasks to complete to the viewers. I really missed this in the fusion tutorials I watched. Great job and thanks for helping us beginners.
It was a bit hard but i managed before seeing your solution. I paused the video at the schema. Thank you
It took me about an hour, but I was determined to get it. I figured it out eventually, but watching you do it afterward helped me solidify my mistakes and how to use FreeCAD more correctly.
Great you did it on your own.
Good job mate !
I love learning by solving problems, keep the exercises coming because I love this series!
The difficulty level was perfect for me. I messed up on my first try and started over. On my second try I completed it but there was a mistake. Finally on the third try I got it.
Thanks Flowwie, after watching your previous tutorials this was easy and fun. Most welcomed is the "Select unconstrained DoF" tool at 5:52, I did need it.
just finished watching the tutorial series. thank you for making such a concise yet detailed introduction to FreeCAD. just leaving this comment here for the algorithm.
Just finished the playlist, can't wait for the next video ! Thanks for you the great content !
This one really kicked my A***. 😂. I used poly for both but I was unable to constrain the lines as per your drawing. Turns out I was not selecting the points but the lines themselves. Very glad I gave up and built it with you. Enjoyed the challenge!
I took a much longer process to complete the gasket but was able to eventually get it fully constrained. Thanks again.
Thank you so much for this series! I started with zero knowledge of FreeCAD or CAD in general for that matter. Followed along your courses (pressing pause a lot) and by the time I got to this exercise, I was able to knock it out in a matter of minutes. I used polyline for the cutout as well, but it was helpful to see another way to do it. I'm quite proud of my progress and it's all thanks to you! I've already knocked out one of the simpler projects I've been wanting to do, and am excited to try something more complex.
Got there in the end without too much trouble. Love these courses.
It was a joy to create this part! My solution was a bit different than yours but the result is the same! Can't wait for the next part of your tutorial series! You making a really good job with your videos! Cheers
My first FreeCad tutorial! Your speed, style and clear instructions are perfect. Thank you!!
Can't say how appreciative I am that you took the time to make these videos! New programs can be daunting, but you manage to break up the focus points and pacing of the video so well to make it manageable for us beginners.Thanks Flowwie!
My only issue is now I want more!!!! Love this series!
I am a newbie to FreeCad. Thank you for these tutorials. It helps a lot!
Hello Flowwie! I've been following your videos for a while now and for this video I did indeed attempt to create the Gasket just from the first frame of the video before playing. I'm proud to say I managed to do it with no assistance! I took a slightly different path to you but (of course) we ended up with the same object.
Thank you! I look forward to the next video.
There is one thing that might be worth explaining that I just thought of, and that's the special drawing line mode you enter after having drawn an arc with the polyline tool, and why you can't get to it normally.
By default, FreeCAD assumes you want tangent constraints on all the joins between arcs and lines, so after drawing an arc, it assumes that you want the next line drawn to be a tangent of that arc - which is to say, a line that smoothly enters the arc without any sharp edges. If you press M twice you'll get back to the normal line drawing, but FreeCAD won't automatically put a tangent constraint on the join so if you want one you'll need to go back and add one.
Once again another great video Flowwie, keep up the great work, thanks.
Your videos are great. Coming from another CAD system I would have struggled without finding these.
I am also using freecad and I am loving it. Thanks to you.
Took a few tries, but in the end got it fully constrained! Thanks for these lessons, time to watch on and see how you do it! 3d printed it out for posterity's sake!
excellent tips love the polyline example and selection of starting centre keep it up !!!
Hello there, this gasket is great exercise...i did followed your advice to try it myself before seeing your solution....i took more than 2 hours for this 😅😅 as i was running into errors but i learnned in the way 😁
Awesome , I followed tutorial one and got number 2 no problems thanks for the great video!!
Thanks for creating this series.
Having just watched and worked through the first exercise as a complete newby, I did this one from the technical drawing before watching the rest of the video, and of course did it with two polylines :) Finding out about using a rectangle to do the inner shape is a good second step. This is a good way to build up knowledge of the myriad tools in the system, which is overwhelming when starting out.
Biggest thing I had to figure out myself this time, was to find the incorrect constraints I'd ended up with for one reason or another. That took some experimentation and thinking to understand what's going on, which was useful learning itself; made extensive use of the constraints panel in the sketch task view to deactivate constraints individually to find what was causing trouble.
Much thanks for all your videos. They are nicely done and enjoyable to watch.
Thank you for the videos! Looking forward to more!
It was surprisingly easy with this east to understand tutorial
Really good 👍video, thank you. The real "got it" here, for me, was learning where to begin the sketch; the center point. I attempted it on my own, using your image, and although it didn't turn out too bad I wouldn't use it in my car, or any other vehicle for that matter. But, as you say, the learning will come with practice; what we focus on expands.
Easy to follow! Thank you regards, Steve Marshall
I got to the solution initially but your method was much faster and required a lot less cleanup. Great Video!
Your channel you inspire me to stop use pirate software and looking for the world of open source , good luck and keep going flowwie
Found this one a bit easier than the first actually, mostly because I didn't know about the tangent constraint in the first exercise. Having that really helped with this one.
I've been learning cad off and on probably for the last year and consider myself not great at all. Sometimes I get stuck and feel overwhelmed so that's why I quit. decided to come back to it today and really liked this exercise. Hopefully I can keep learning
Learnt so much this time and enjoying the tutorial very much...cheers.
I'm going to make a flange for a custom exhaust manifold using this tutorial. Thanks!
Thanks for the exercise! It took me 30 mins to complete the drawing. I didn't know you can fix a distance between a line and a point.
I spent a lot of time working on it and had some hang ups with excessive constraints. I should have anchored to center earlier, as moving it after the fact was next to impossible. The circle at center point is so much easier. Trying to figure this out myself before watching was such an eye opening experience. I learned that I still have a lot to learn.
Thanks for the feedback
this is why I learn middle school math (circle theorems). Now I finally use it.
Thanks :) cool you now have a use for it
Very good tutorial Flowie, learned a lot, especially from the multi-line tool. I did not knew that by positioning after the mmm keystroke you can direct which direction the next strait line will go. Thanks.
Cool you learned something !!
Very good guide. I've thoroughly enjoyed all of your videos. :)
Thank you for your videos! They are so helpful
I had a hell of a time with this one. I'm also using0.20.2 so I had to add an extra vertical constraint of 6 mm for me to be completed. Love it tho thank you
I am eagerly waiting for more of your tutorials...
Thankyou very much this took 2 hours but I will never forget it now😉
I've actually tried doing this one myself and oh I've suffered! Then tried the previous one, suffered some more, did a model of my own (horrible), returned to the gasket and almost managed to do it by myself! So it's all not in vain, I'm learning things :)
Thank you for your tutorials, I'll be waiting for the next ones!
Am the one suffering right now 😂😂
Another great training. Battled to get the markings for radius like it is in the technical drawing. Drawing came out ok though.
absolutely enjoyed it, my solution was a bit different to yours, but glad i was able to learn along and solve it
Nice, you need to make more _mechanical CAD components_ tutorial with this new version ( 0.20 )
I went about it a little differently, and did have some struggles, but i got there! And now, watching the video, I have ideas to apply to my next attempt at whatever. Thanks! :)interest
P.S. Dunno if you'd have any interest in covering architectural drawings on this channel, but I'd love to see some content on that, and I like your presentation style, so... FWIW. :)
Vielen Dank!
Excellent tutorials! I myself have been an engineer for over 40 years and I have used ACAD, and Soldworks over those years.
I downloaded freecad out of curiosity, and I am quite impressed with a lot of the similarities between it and Solidworks. Your instructions are excellent!
Thanks so much for your kind words
Great tutorial again, I managed to do it almost the same way you showed. One thing... I am not sure the drawing clearly indicates that the 4 radius of the hole are coincident with the outside radius.
Another great exercise. Again it was not too hard but still challenging and makes me think for the solution. I also had a chance to implement the lessons I took from the previous exercise. I see that there are no more lessons and exercises, which is very sad to me :(. I hope you will continue...
Ok, so after watching the last two tutorials, I guess it's going to be a while before I will be drawing a 3D roof showing rafters, fascia etc!! 😜Ah well, patience is........a pain in the ass!! But that's life boy, said the soap salesman.
Great stuff mate! Keep them coming. I'm an Aeromodeller looking to design own Aircraft & scale models.
Unintentional lesson, learned there are more than one way to get to the same drawing. I did get there but ended up using 'construction' to set some constraints because I didn't make one of the circles on the starting point. Good lesson. Lots and lots to learn with this program. Hoping to use it to as the design program for my CNC (still waiting for delivery of my machine taking the time to learn the software)
Have fun with your CNC and enjoy my videos!
I started that way as well, using construction. I got into difficulties, so I did it the Flowwie way.. lol.. all good.
this is awesome learning a lot
Thank you - another excellent clear tutorial, much appreciated.
thank you very very much . please some more exercises.
Im working on it! Have you seen my latest video?
Thank you for the excellent tutorial.
May I request an even more basic tutorial, probably explaining how the document is to be organized,
Application -> Part(s) -> Sketches and maybe a little help on putting different parts of a body together.
Thank you and best regards.
I'm eagerly waiting on how to do the technical drawings from this series.
Your channel and videos are awesome and it is very easy to follow. Thank you for this great content. One question in particular which I have is, how does one identify the required constraints to get to the fully constrained state? Degrees of Freedom?
holy shit I did it without any help, that felt amazing.
tysm
Super please more :)
hanks lot Sir.. You helping us..
super video! you are a good teacher!! :-) question, can you show how we can make multiple solid objects in one page and merge them into 1 shape?
It was a bit difficult because I tried to use construction lines for the 6mm constraint but your solution is obviously better!
Thanks a lot for these tutorials, I'm actually having fun
About to start learning FreeCad, looking forward to your courses. I notice that this vid is in 2 playlists, should it be that way?
Yes I haven’t really found the best way to structure the material - but I wanted students to work on this exercise after basic course part 3
I have just (28/12/2022) started trying to learn CAD as I have just got a 3018 CNC Router. thought it would make a good hobby for when I retire??
Didn't think there was much in it LoL TOTTALY didn't think about the learning curve of CAD LoL, then I have to learn CAM LoL
The machine is easy.
COULD you do a video on adding raised or embossed words to a flat surface? and a round surface? As once I get into CNC I am thinking I might get a 4th axis machine.
tomorrow I am going to watch Basic Course - Parts 1 and 2 again!
Took me several tries to get this to go right. About 2-3 hours.
Great effort!
@@FreeCADAcademy Is FreeCAD a suitable program for creating woodworking design plans?
Awesome!!!
You are the best
This one is really hard for some reason. I thought I had it, but it still had 7 dof left, but I could not find them. Also, how do you set the vertical distance between the two outside horizontal lines which is supposed to be 72mm. I might skip this one if I can't figure it out soon.
I wish freecad listed the dof so you would know what was left.
Wow! I finally manage to get the outside border fully constrained. It took quite a while, but I finally figured out that I had a bunch of broken line segments. I am not sure how since I used the polyline, but after I joined all the line segments together did not take long to get it fully constrained. I just have to work kn the inner shape now.
Good exercise Thank you
Thank you
great tutorial
Hi Flowie, you wrote somewhere that you were thinking about how to structure your tutorials and maybe my thoughts are useful:
I would probably split it up in novice and advanced users.
Novice would mean to me users that do not have memorized tools and procedures very well. For that group I would proceed as you do in this video => you clearly and systematically show how to make a proper sketch BUT you make the object to work out more complicated with any new video, like you did with this gasket.
Advanced would mean to me you skip the making of a proper sketch but you dive into explaining special / more complicated tools / other workbenches.
I am just trying to think along freely, if it makes any sense I’d say use it, if not, no offense taken. Again, I enjoy your tutorials and approach very much already.
Good!
you do this so well. How do we download version 0.20. The current version is 19.3 although I have read on the forums that 0.20 is on the way
www.reddit.com/r/FlowwiesCorner/comments/s4i42n/howto_install_the_latest_020_development_version/?
@@FreeCADAcademy thank you flowwie
Hi Flow, Great exercise. I got it but in about three times the number of steps. I jumped in without reading your notes about the polyline tool and did it with individual lines and arcs. I did have trouble however trying to reproduce the Tech Drawing. The distances shown all came out as near guesses. Could you do a short follow-up on how you produced the drawing. Thanks, nick
Did you make sure you have a 100% perpendicular view on the part in the drawing? If not that might explain the wrong measurements
@@FreeCADAcademy Not sure. I'll check that. I'm a complete novice at the Tech Draw workbench so I'm really feeling my way still.
On the second attempt it worked perfectly. I suspect that the view was not perpendicular but I've no idea how that happened on the first drawing. Thanks for the tip.
@@nickoppen That was what I suspected. ;-)
It can happen easily if you create your first view in the drawing before you adjust your view 100 % perfectly in the 3D viewport.
That was very hard until I found the 4mm measurement on the bottom of the diagram. Until that point, I couldn't get the sketch contstrained completely.
A few more of these, and I think I might be ready to buy a 3D printer, which is why I'm doing this in the first place.
One thing I'm having a hard time understanding is whether or not it matters where the sketch's center is. In this example, you put the center of one circle at the origin. Would that matter if you were going to 3D print this?
Good👍👍👍💯
I might be overthinking it, but is it a mistake to sketch the two holes as having equal diameter? The drawing shows they both have 10mm diameter but it does _not_ say they're equal - which to me suggests it's just a coincidence they're both 10mm. When they redesign the parts this gasket is for, and change one bolt to 12mm diameter but not the other, you'd need to remove the equality constrainte
Yes you’re overthinking!
Got close, but when setting the Archs to R10 mm, both and arch and circles became one. Gurr. Going to try again from scratch.
Hi, thanks very much for this lesson, just a question, why do you always prefer to give fillets within sketches rather than as a feature later on? Isn't it always preferred to give later on?
In all other CAD Tools it is.
In FreeCAD due to its vulnerability to the topological naming its more stable to do it within the sketch
@@FreeCADAcademy I just looked up the topology problem, didn't really pay attention, thanks a ton for the reply 👍
you are flipping always between 0.19 and 0.20. Which version do you finally suggest?
Actually I only do this because I expect v 0.20 to come out in the next weeks … and I don’t want my tutorials to become outdated too fast. If you’re just starting with Freecad, then it’s absolutely fine to start with 0.19.3. you will miss some smaller features and improvements but 0.19.3 is less likely to crash. For my paid work that I do, I also work with the 0.19.3 !
@@FreeCADAcademy I use the 0.19.x since almost 1 year now. I learned a lot in these months also thanks to video like your ones. I also hope they will publish soon the 0.20 but as I see, the 19.4 is into the "coocking process" and they didn't publish the .EXE yet. I imagine the 0.20 will require another year :-/ At the end I installed it, because there is some feature I do love to have.
Can you make a simple rectangle & wedge/trapezoid speaker box? Just six sides/pieces with one cut out for a speaker. Then how do I can a cut sheet and/or drawings? Thanks.
This was a bit challenging but very managable.
sehr schön...
ist denn das "surfaces-numbers-problem" mittlerweile gelöst?
Soweit ich weiß noch nicht nee
@@FreeCADAcademy schade...
@@xxxJinGejxxx kommt alles noch!!
Okay, so I finally was able to finish this. Both the outer and inner lines are green and I am unable to move anything. I was able to create the 3d model from the sketch, but there is problem. The sketch still says the sketch has 8 dof for some reason.
Okay, I figured it out. Thete were 4 stray points in the sketch. As soon as I deleted the stray points, the sketch is now fully constrained.
For once, the software is actually really useful
Is it possible to get more help dealing with "degrees of freedom", as you must be aware that people get more errors than you show while you are working. Mine lights up like a Christmas Tree even when I follow every step.
I would LOVE to see that too.
The most frustrating part is figuring out how to fix errors.
Currently I just wipe out my entire design and start over, because I can't even begin to comprehend how to fix them.
Instead all the tutorials pretend everything works perfectly every time and there's never any issues to solve.
In one instance I accidentally constrained a line to the center line and no matter what I did to try to fix it I got errors.
It would be really helpful to know how to remove constraints once they've been applied, because that's where 95% of my errors crop up.
@@barbsfpv3066 When you have the Sketch view open, on the left in the Combo View panel, scroll down to the box that lists your Constraints. Find the Constraint you want to remove (it will turn a different color on the Sketch grid as you select the Constraint) and just hit the delete key. This will remove the Constraint. If you want to edit the value of the Constraint then just double click on it in the Sketch and the dialog box will pop up to adjust the value. Hope that answers your question. I just started trying to learn to use FreeCAD a couple days ago and am still a bit stumped by a lot of things but I keep trying :)
Closing the gap. Only 1 hour, but some small mistake with arc radiuses on one corner.
I'm wondering how to do what once would have been called a tween between sketches... say you have one sketch above another that is only 50% of the second I'm sure freecad can make the corresponding walls?
Hi Flowwie. I need your help with a design issue. Where can I send you photos and inquiry please?
whaaaaaa just got all tied up but will keep at it
You can do this !!
Man, I LOVE when the tutorial for the most up to date version of a software has a UI that is NOTHING like the one I see when I open the program after a fresh install! VERY beginner friendly...
I am having trouble with the constraints over-constraining. I can follow the same way you do it and it won't work. The angle is messed up where it wants to snap to the grid even when you select the line.
For me it says cannot use selected objects/ create new body. The sketch is 100% perfect to your instructions. Where am i going wrong?