3D model to technical drawing - 3D design for 3D printing
ฝัง
- เผยแพร่เมื่อ 15 มิ.ย. 2024
- To get the best out of 3D printing, it helps if you can design your own parts. In this tutorial series, we will learn to use a free 3D CAD program to do just that.
In this episode, I demonstrate how to create technical drawings based on a 3D model. We cover creating multiple views across multiple sheets, dimensioning, scale, and title blocks. We also cover more advanced techniques such as section and auxiliary views, plus assembly drawings with a labelled bill of materials.
Thanks to my patron Richard for requesting this tutorial.
0:00 Introduction
3D design for 3D printing Onshape playlist: • 3D design for 3D print...
Direct link to create a free account: www.onshape.com/en/products/free
Source CAD for tutorials: cad.onshape.com/documents/b54...
0:38 Example 3D model
1:47 Creating a drawing using a sheet template
2:25 Placing views
3:24 Customising the sheet
5:20 Dimensions
6:13 Adding a second sheet
6:30 Section view
7:30 Auxiliary view
8:17 Named/custom view
9:22 Updating a model and drawing
9:59 Assembly drawing with parts list
11:35 Exporting
11:53 Conclusion
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Thank you for including this segment. Making these drawings offers yet another way to check & share concepts of complex parts.
Drawings, especially 1:1 scale can be useful for early prototypes for 3D printing too. My laser printer is way faster than my 3D printer. I used 1:1 drawings + scissors to check that the size of a handle would be about the right size, a awkward curve would fit the original object, etc.
Extremely helpful. Thank you very much.
I found this really helpful - thank you!
Thank you for this. It was really helpful. I teach my students to use oneshape for simple mechanical drawings and I really needed this introduction to how to make standardardised technical drawings. Thank you again.😄
This is very helpful, thank you!
I am working on something now that I'll eventually want machined, so this is fantastic!
Great video to show the versatility of onshape
Very much thank you for the onshape design videos.
Thank You so much for doing this video and to Richard as well. I've been printing and designing since 2017. I just now have a customer who needs drawings like this plus stl's and Ive been wondering how I was going to do this.
Keep up the great work!
Coming from a Pro-Eng background of close to 3 decades, I'm intrigued by the elegance this software may have for home hobby use. Before I spend a few weeks learning the in and outs of Sketchup, it would be imperative to know the assembly capabilities. I saw a 6 year old video that wasn't satisfactory to the skill set I would be molding to and a poor reference. But that was 6 years.
The video of drawings shown here wouldn't work in today's modern manufacturing. Does it even have ANSI tolerancing?
Does it have the ability to do complex drafting from a parting line? Can it do moldflow analysis?
Any and all input would be greatly appreciated.
Nice tutorial, Toys for Tots is a great cause also
Being self-learnt, I always wonder what is the correct way to approach 3D modelling and drawings in my region. I still don't know the standards but when communicating with manufacturers, I guess being clear and intuitive is what gets the job done.
How i wish these tools existed as they're now in 1996 haha
Brilliant!! Perfect explanaation. If I didn't catch someting specific, I can always go back and look at it again. Excellent Reference.
Is there an option to import such a drawing and have it automatically convert to a 3d model?
Can you please show how to use
"Auto layout"
onshape extension.
I want to slice a 3d object to multiple
2 mm thick slices and then lay it flat to make a template, which i can print and use it to cut 2mm MDF board for my project.
Just to highlight a few key principles of drawings:
1) Drawings are almost always used to CHECK parts - not build them. Anyone machining a part, building a mold, making a stamping tool, etc. will have access to the 3D model. The drawing is used to determine if the parts coming out of those processes are within tolerance.
2) Because the drawing is being used to check parts, make sure the dimensions are defining the features that matter. For example, what's critical about a pipe in your application - the OD, wall thickness, or ID? Dimension the two that matter most, so those are checked.
3) Make sure each dimension is actually measurable - try to not go off of imaginary points in space or hard-to-find inflections between radii.
4) Tolerances should be based on need, not what you think the process should achieve. In other words, if a plastic part is warped by 1mm, but it will still work in an assembly, would you reject 1,000 of them? If not, give a wide tolerance.
There are a lot more things to keep in mind, but you will cut down on a lot of headaches if you follow these principles.
"Drawings are almost always used to CHECK parts - not build them." Wrong! for more information search for "ISO 128"
@@hansmeier4930 In practice, 3D models are used to make the tooling or paths for almost all processes, e.g., molding, stamping, CNC machining, 3D printing, etc. However, machinists will sometimes reference a drawing for features like hole locations and feature tolerances. But Quality teams will use those drawings everyday to check parts, to validate functionality and that the process is controlled. Very few manufacturing processes require looking at a drawing, but all require referencing one when checking the parts. So when you're detailing a drawing, you should be thinking about how the Quality tech will be measuring each dimension.
Machinists dont use 3D models when making parts. Not everyone uses a CNC. This is all the more reason to have fabrication drawings that highlight the important dimensions that will aid the machinist in making the part (knowing which face will be used as the reference plane and having dimensions from that plane for example).
I have a set of diagrams of an object and I'd like to be able to put in each face and then have the computer make it 3d so I can 3d print it. Is there a way or program that would do that? Thanks
btw, it's a space ship and it shows top, bottom, left, right, front, back etc.
💕👌👍
Any idea to make without onshape? I use Fusion360