Injection Molding - Undercuts (How to Avoid and Design)
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- Опубликовано: 19 май 2024
- Learn what an undercut in injection molding is and how to design your part avoiding undercuts. We'll demonstrate how to re-design a part with an undercut in Fusion 360 using a shutoff.
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00:00 Intro
00:23 Learn what an undercut in injection molding is. We'll demonstrate how an undercut makes it difficult for a part to be ejected from the mold.
00:50 We'll discuss the 4 main ways to avoid an undercut in injection molding.
01:01 Shutoffs explained. You'll learn how removing material under the undercut can help the part eject better from the mold.
01:26 Moving the parting line explained. This is the easiest way to avoid an undercut in injection molding.
01:42 Bumpoffs explained. Learn when and how to use a bumpoff for undercuts.
02:16 Sliding side-actions and cores explained. Learn to use side-actions when an undercut can't be avoided.
02:47 We'll remodel a part with a snap-fit feature and undercut in Fusion 360. You'll learn how to create a shutoff by making a cut out under the snap-fit feature. Finally, we'll add a draft angle to the design.
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Short, Direct to the point, followed with simple, clear example.
Very helpful for beginners.
Thank you
Love that you guys jump straight into Fusion and show a real life example.
Love the young Howard Stark mustache!
This is a very practical example. Very typical issue you come across in part design for injection moulding. Nice work.
Dude, I don't know how much i can thank you! I am busy with a study project and it was breaking my ballz. Muchas gracias mustachas
nice explanation. Love it!!
Good video bro!
Very informative
NICELY EXPLAINED USING CHAPTERS.
nicely explained. the example was on point. I'd like to see some more f360 examples though
Beautiful explanation
Hey your ad worked! Great video. First youtube video I've clicked on from an ad.
your literally a life saver OMG THANK YOUU MY DESIGN IA is saved
Very good explanation. Good job
Thank you very much
This is great and interesting (as was the previous video).
You do a good job and that's lovely!
As a suggestion for this video and the previous one: adding a really simple simulation of the ejection will help a lot to understand how your solution actually helps. If you do compare side to side the initial model without shutoff and your result with a shutoff, I am convinced that anyone could understand that ;-)
Anyway, you do a good job, thanks a lot.
And now I am waiting for the third video ;-)
Hi Thibaut, thanks for the compliment and feedback! We always strive to make the videos as clear as possible and we will absolutely consider your suggestion.
@@ProtolabsMFG You do an amazing job ;-) ! Keep going, that really interesting
Many thanks
As someone new to injection molds its quite confusing all the terms you mentioned. Anways Good job
You forgot to mention lifters, which is afaik the most common way to solve the undercut issue after shut-offs, since they are cheaper than side-action and more flexible in placement.. Furthermore minimum draft angle for a metal-to-metal surface in the mold is typically 3 degrees minimum. 1.5 degrees for that shut-off is very tight. Wouldn't it also be simpler to just extrude with a 3 degree draft from the undercut surface through the bottom of the part. That way you dont have to create a sketch, and you don't have to use the draft command, so fewer features on your timeline.
any videos that cover , tips to maintain uniform wall thickness ?
Fantastico!!!
Thanks
thank you
Wow I would like to say that I understood that but I definitely didn’t understand the undercut great quality thou
Hi, sorry to hear that! Is there a specific part you would like to know more about?
@@ProtolabsMFG I don’t understand how the undercut made it easier to remove from mold
Could you recomend a book to study about this?
so something im working on is basically a box, but it would require a straight up hole (or two) in the side...seems like my only options are side action & changing the parting line, and changing the parting line would just create more undercuts...
good and helpful , We are a company supply plastic injection tooling and moling
But if you don't want a hole in the bottom of your part you need a side slide, correct? 😅
Why business I'd required for downloading this pdf.
What if there a student need that kind of knowledge?
Please do something about it...
I am just a learner not a businessman.
Türkçe çeviriyide eklermisin ?
I subscribed to you... now give me a handbook
Is this Howard Stark 😂😂😂😂😂😂😂😂