Designing your own custom heat sink is cheaper and easier than you might think.
At look at why you might want to design your own heat sink, the costs, the advantages and disadvantages, design considerations for surface mount PCB's, air convection, and mechanical DRC, and die-cast vs machining.
This is Part 19 of the µSupply Design series
SMD thermal design video: https://www.youtube.com/watch?v=2ygnAv6koSQ
Forum: http://www.eevblog.com/forum/blog/eevblog-1196-custom-heat-sink-design/'>http://www.eevblog.com/forum/blog/eevblog-1196-custom-heat-sink-design/
#Heatsink #ThermalDesign #PCB
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At look at why you might want to design your own heat sink, the costs, the advantages and disadvantages, design considerations for surface mount PCB's, air convection, and mechanical DRC, and die-cast vs machining.
This is Part 19 of the µSupply Design series
SMD thermal design video: https://www.youtube.com/watch?v=2ygnAv6koSQ
Forum: http://www.eevblog.com/forum/blog/eevblog-1196-custom-heat-sink-design/'>http://www.eevblog.com/forum/blog/eevblog-1196-custom-heat-sink-design/
#Heatsink #ThermalDesign #PCB
Bitcoin Donations: 38y7DE8HEHNj8fGDtUr4PkCn9nWxiorvvy
Litecoin: ML7oQokTwB38bgzzjLDbRV97HKAHuwRfHA
Ethereum: 0x11AceA38DCA9DbFfB4F35f3F746af65F9dED28ce
EEVblog Main Web Site: http://www.eevblog.com
The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2
Support the EEVblog through Patreon!
http://www.patreon.com/eevblog
AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g
Buy anything through that link and Dave gets a commission at no cost to you.
Stuff I recommend:
https://kit.com/EEVblog/
Donate With Bitcoin & Other Crypto Currencies!
https://www.eevblog.com/crypto-currency/
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Done.
It's actually often worth it to 3d print metal parts in plastic before bothering to get one machined so you can check fitment. For heatsinking, obviously you'll still need to do the machined part as an intermediate to verify the thing works thermally, but dropping a couple hundred bucks on machined prototypes that don't actually fit is not fun.
I've said it on another video. They just don't teach this stuff in college. Very useful information. Thanks Dave.
Great video Dave. Please do a follow up video with David. Great work on the product too – looking forward to seeing more of it.
WOW! What the material have you used to 3D print the front panel of your multimeter prototype? Looks like a quite a good plastic! I wanna make such good looking prototype for my project too.
I have a 3D printer actually and I never thought a prototype can look so good (because mine is a cheap one and can't produce it probably)
Damn. Man. too much talk and very little information.
silpad…grrr POS ! mica FTW!
Dave you better make costum aluminium poted case. Is this thing powered from bateries or what?
Even big companies who do 10.000 unit try to use existing parts, for long term availability . . .
cool, now that gives me some ideas, like chopping up some heatsinks I already have to go around some through hole components
Can this be 3d-printed? 😉
Heatsinks and EMC may be an interesting topic
Shaky hands. Take care of yourself
it is really interesting until the moment you have 15 days to finish your design, but the mech. guys need your components fixed today in layout so they can make the custom heatsink protrusions… sooo interesting:)
I am a electronics beginners should I buy dso or cro
I thought about this too recently when I opened up my "TP Link Archer C9" home router. Its a basic Gaming router of sorts with a beefy CPU. It has a massive custom designed heatsink which I image would have cost a bit in R&D alone.
how and where and how much will a customized case cost ? and from where ?
It's written
Meh, design the board to mount a little larger, plain old piece of rectangular sheet aluminum. Press bend it if you need clearance over other parts, could easily be DIY for under $1 each for small quantities. I suppose it won't look Really Nice, but most people will appreciate the cost savings if talking about those few % that ever even open the product to see it.
Machinable Al has different thermal properties from cast Al. Is the difference even relevant in the context of heatsinks?
So, what was the product?! 🙂
Please do have David 2 put together a video on how he did that heatsink and prep the files for sending to the manufacturer 🙂
"if you're doing 1000 of your product, you'd just order 5000…" Daves how to guide on hoarding for beginners