Injection Molding - Draft Angle (Why and How to Design)
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- Опубликовано: 11 июн 2024
- #draftangle This video explains what a draft angle in injection molding is, why they are important, and how to design draft angles in Fusion 360.
00:00 Intro
00:24 What is a draft angle? You'll learn why it's important to ad draft angles to your designs.
00:40 Draft angle demonstration. Here, you will see what happens when you don't add draft angles to your injection molding designs.
01:18 Designing draft angles. Learn about the 3 things you have to always consider when designing draft angles.
01:24 Fits. We'll show why it's important to consider the origin face of where the draft angle would start.
01:45 Textures. We discuss and show how textured surfaces can influence your draft angle design.
02:23 Ejector mechanisms. Learn why using draft angles makes it easier for the part to release from the mold. This allows for simpler ejector mechanisms.
02:41 Draft angle design in Fusion 360. We'll remodel an injection molding part without draft angles to a part with draft angles.
04:45 Outro
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4:15 You just created counter draft on the outer surface, making it impossible to open the mold with the split line being in the obvious upper corners. In order to have the outer surface drafted as shown you would need slider movement to the sides.
Sorry, I have been working with injection molding over 15 years. :)
Love the use of the 3DP examples, very clear!
Thank you! Very clear :), enjoyed learning about this thanks to u!
Thank u very much sir it's very helpful for me
But angle is different between top and bottom of draft area then how to maintain uniform wall thickness of the part?
Gracias!
great video thanks, when the series will continue?
very good vedio，can you do it more,thanks
Great video guys! At 3:59 did you apply a negative draft angle on purpose or it was supposed to be positive?
Hi João! Thanks for the compliment. The draft angle you are talking about is positive. We did not ad a negative draft angle. Hope that helps!
Why are opposite Side Draft Angles here? On other videos, Part like your. Draft angles ( outside and inside are in same direction
Please do some videos about slider and lifter.
Thanks for the video, it's useful to learn about the reasons why draft angles are necessary!
Would you guys be able to make one on the tolerances needed when 3D printing and injection moulding two parts that fit together?
Hi Kamaal, great to hear you appreciate the video. That is definitely a very interesting topic and we will add it to our ideas!
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Wouldn't this affect the product's final output? If it has a GD&T symbol of straightness and flatness etc... the product needs to be perfectly straight or flat. By adding draft angle wouldn't it affect this property?
Hi bro can you make a video on positive & negative draft angle
What program did you use to create the diagrams with black background?
what if the model you need to make have internal draft angle but outside can't be simply ejected with drafting and require multi piece mold to be made? in this case let's say 6 part mold where front and back, would be interchangable as well as left and right, but a model already have natural parting line for top and sides build in
how to inject plastic into such a mold toy train bodies , architectural models , things with a lot of windows and thinn surface details that stick out and would hold 2 piece mold
I keep hearing different degrees of angle from different people. One company told me a 1 degree draft angle would suffice, but here your inner draft angles were 1.5 degrees. Is there a set standard?
Hi Richard, thanks for your question. In short: no. It depends on the design of your part and the surface finish.
I think if you change video topic to something like what is draft analysis, you would be able to draw in more people into this video.
Thanks for the tip Yorem! We might try that.