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Apply GD&T to FreeCAD Drawing | FreeCAD Tutorial | FreeCAD Drawing | Mechnexus |
May 18, 2025
#freecad #freecadtutorial #FreeCADdrawing In this video I have explained How to Create Technical Drawing in FreeCAD. ▶️ Visit my website for more info on FreeCAD-: https://mechnexus.com/ ▶️ Get my FreeCAD Crash Course for beginner-: https://www.udemy.com/course/freecad-course-for-beginner/?referralCode=3BA9B526A12F96295D44 ▶️ Download Source File of Tutorial-: https://mechnexus.com/mechnexus-youtube-tutorial-source-file/ ▶️ Buy Me a Coffee I am very grateful that you watch my videos and I am constantly trying to improve the quality of the videos on this channel. If you'd like to help me do this, please consider supporting me so that I can to continue to produce content for your enjoyment. 👉 Help support this channel by buying me a coffee: https://ko-fi.com/mechnexus All donations will be used to purchase equipment to improve my productivity and increase the quality of the content that I produce. Your kind support will help to grow this channel. Even if it's just enough to buy me a coffee every little helps and this will be repaid in full through my sharing of knowledge.
View Video Transcript
0:00
hello friends welcome to free CAD tutorial and in this tutorial we will
0:04
learn how to give GDNT to part in free CAD as you can see that I have a model
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very simple part in free CAD and I have applied the geometrical dimensioning and
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tolerancing to my free CAD drawing I will show you from the scratch how you
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can apply the GDNT to FreeCAD drawing so let's start our tutorial you can also
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visit my website macnexus.com where I write articles and tutorials on FreeCAD
0:38
you can also download my tutorial source frame from the here you can also
0:43
support my work by buying my FreeCAD crash course for beginner it is a very
0:49
basic level course for the beginner user where a beginner user can master the
0:55
free CAD and you can also support my work on coffee.com you can buy me a cup
1:02
of coffee you will get my website link and my Ko-Fi donation page link in a
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video description so here I will close this drawing and here I have a created
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one part and I will create this part again to show you from the scratch so I
1:27
will create a new file and I will switch to the part design workbench create a
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body and I will on my plane and I will switch to the orthographic view now I
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will select this exit plane and create a sketch so here I am to going to create a
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a very simple plate 100 by 50 by 10 so I will select on rectangle and I will draw a rectangle
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and I will switch to the tree view and of my origin now I will make this symmetric so
2:02
I will select this point this point and the center point and length I will give 100 width
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I will give 50 and I will simply extrude it with 10 mm and here is a 10 and I will say
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okay now I will create one hole so I will select the face and create a sketch and I
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I will draw a circle and I will make it 25 with respect to Maya drawing
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Now I will give the vertical height so I will project the bottom edge and I will give the
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vertical height of 75 and I will close it and now I will make the cut and I will say
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it true all and now I will save my file so I have saved my file now we will create drawing
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as I have already did it and we will apply the geometrical dimensioning and tolerancing
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so first we will switch to the tech draw workbench and here on the tech draw workbench first we will insert the default page and now I will switch to my
4:00
model and I will set my orientation to front now I will select the body and
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then I will click on insert projection group so on here you can choose your
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projection method either first angle or third angle so I will go with third
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angle here you can set your scale as well but I will keep one rest one and
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here I will select the views which I want and I will say ok so you can see
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that view has been inserted now I will move it and I will off the frame now I
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will select my circle and I will provide the center mark so I will move my tools
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to the downside center mark so in this tutorial my side view is on the left hand side now
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it is on the right hand side so now I will on the frame so first we will view the dimensions
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so i will select this point and this circle and i will give the horizontal dimension of 75
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now how we can make this dimension basic so to make this dimension basic double click on the
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dimension and here you will find the theoretically exact options tick mark it so your dimension will
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be now basic now this position I want 25 as a basic so I will select the line
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and this vertical line of my center mark and I will give the dimension 25 now to
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make this dimension basic double click on it and click on theoretically exact and total
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length I will give horizontal dimension now I want symmetrical tolerance of 0.1 so I will
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double click on it and here is a equal tolerance now I will give here 0.1 you can just increase
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or decrease value now length I also want plus minus 0.1 so I will select this one and this one
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or simply I select this line and give the vertical dimension and again we click double click on it and we will give the 0.1
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and now we will go to the side view here is a 10 plus minus 0 so we will do the same again double click on it
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now we will apply the datum so I will select the vertical edge and click on
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the balloon symbol which is here now it is a balloon now we will convert it to
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the datum to convert it into the datum just double click on it and I want to
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make it datum A so I will type here A and from here I will select the square and
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and arrow field I will select the field triangle so here we have inserted datum
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A now we will give the flatness of 0.02 so again I will select this vertical
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edge click on the balloon and now you can see that balloon is inserted here and
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and you cannot move it with the help of a mouse so but still we can change its position
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so click on the balloon go to the property manager then go to the data and here you will
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get here position x and y now click on the y and just increase the value till it is done
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till it become perpendicular so now it is perpendicular so this is how you can change
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the position now I will double click on it and I will make it a rectangle first and say
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ok now I will click on the balloon this my balloon and now I will click on here custom
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format label and custom format label here is a flatness so I will go here 2 and in front
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of 2 I will select this flatness symbol and now I will give my value 0.02 and I will say OK
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something wrong happened now I will again select the vertical line go to the balloon
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we will do it now go to the property manager and from here
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okay now we will double click on it and from here I will select the rectangle
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and I will say okay now I will again select it and click on the GDNT symbol
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here now I will delete it and here I will give the flatness then space 0.02 and I will
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say ok so you can see that flatness has been created here and now we will use plus 0 tolerance to the
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diameter so I will select the diameter and click on the diameter symbol 25 now
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will again click on it and here here is a bilateral tolerance it is not symmetric
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so just uncheck equal tolerance and here is 0.01 upper value lower I want 0 say
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OK now we will insert the datum B I will move my diameter here now we will
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insert datum B so again we select this vertical edge and click on the balloon
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and we will move its position so I will select on the balloon and go to the
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property manager and I will increase it so there you can see that I am increasing the
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value and arrow is moving now I will move my balloon here now I will double click on
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it and it will be my datum B so I will give here B and from here bubble shape I
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will select the square and arrow field I will select the field triangle and I
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will say ok so you can see that datum B has been created but I want its position
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something here so I will again click on it go to the property manager in Y
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direction I will reduce it so we have created datum A datum B this flatness and the dimensions
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now I want to make my this base face perpendicular with 0.02 with respect to datum A and B so
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So I will select this bottom edge and click on the balloon
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Now I will double click on it and make its shape rectangle
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Say ok. Now I will again click on my balloon and click on customize format label
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and I will delete this 5 and here I will insert the perpendicular T space I will give my value
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0.02 and type A and then B and I will say OK
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this is how we have applied geometrical dimension and tolerancing with respect
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to to the drawing which I have already made and I have shown you from the
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scratch how you can create the datums applied the symmetrical tolerance and
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bilateral tolerance and how you can change the position of your datum with
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the help of a property manager so this is all about this tutorial I hope you
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have liked this tutorial
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