Portland cement phone stand
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A 5 part mold for a portland cement or concrete phone stand
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Model information
- Source
- Printables
- Category
- Sculptures
- License
- Creative Commons — Attribution — Share Alike
Portland cement phone stand
TL;DR
Made a 5 part mold for a a cement phone stand.
I've printed it with PETG for flexibility, but PLA should work. Because it's a multipart cast no uncasting wax is needed. The lateral parts are 0.4mm apart and can be printed as is. Layer high is not critical, 0.32mm for a kick dirt print works nicely.
Cellphone tilt is 25º, Sven's version (https://www.printables.com/model/633373-concrete-phone-stand) is 30º, dimensions and corners also differ.
You'll need a few bulldog paper clips, and some portland cement, nothing fancy. Assemble the jig and pour in the mixture, give it some shake to make air bubbles rise.
IMPORTANT NOTICE:
Let it rest at least 24h before uncasting!
Cement typically takes about 24 to 48 hours to set, but it reaches its full strength after approximately 25 to 28 days. During the first week, it may only achieve around 70% of its final strength.
Happy hacking!
Detailed instructions
Get some tools and some card board.
Get your portland cement.
Prepare the mix.
Add water up to a mayonnaise consistency.
Pour it. Be sure to rattle/shake the mold in order for the bubble to rise.
Seal it. It will leak a little bit. But that's OK.
Let it rest at least 24h before uncasting! But...
24h hours later...
Resting with the first cast on grey cement.
The mold is ready for another cast!
You can still uncast it after 24h, but note that it will still be very fragile. Now it's a good time to correct some seams or straight out some imperfections with a moist cloth rag, proceed with caution not to break it. Let it rest. Cement typically takes about 24 to 48 hours to set, but it reaches its full strength after approximately 25 to 28 days. During the first week, it may only achieve around 70% of its final strength.
Enjoy!