Make a plastic phone cover using CNC milling
I made an instuction video on how to make this, and in this thread i want to reply on questions that you guys might have!
Why not design the injection point on the inside of the phone cover? – by @jegor-m
This is cause the inside has an insert to mold around, and in general you want to prevent injecting through inserts.
Where does the air go
Yes on big injection machines this is a problem, but here the tolerances are not so thight, one scratch and you will have plenty of ventilation…
What material did you use?
The mold is made out of Aluminum
How much did the mold cost?
We paid €400 for the mold, €50 for shipping
I used Solidworks mainly because i know the program very well and the iPhone can have difficult radii. you can easily use fusion360, thinkercat or any other (free) program, but im still learning those 😉
Where to find the mould files?
Mold files are in the download pack:https://github.com/hakkens/precious-plastic-kit/archive/master.zip
In this path: 5.create -> iPhone 7-8 mould -> STEP files 😃
I was wondering, what is the radius of the holes that you made for the screws?
Also what is the radius for the injections cutout in the mold that you pour the molten plastic into it?
what series of alumunium you use?
Can anyone here tell me what calculations are to be done to decide the thickness of the mould for compression moulding. We are using cartridge heaters.
according to my tests doesn’t matter the thickness of the mould at compression machine because all the mould reach high temperature..
only at injection machine you need specific thickness cause the mould is cold
the thickness depent from:
-the size of the mould
-from the type of plastic
-the force of the injection
*maybe this question is not for this topic
I have make a few modifications to the mould!
Now the injection hole is at oposite side that means the case is clean and the injection sign is inside the case
they look great.
I see myself getting jealous, cause you dont have to stamp them 😀
also nice logo milled in the mould:)
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