3D Scanning, 3D Printing, and Casting Concrete Objects

Our local historic Cemetery has several monuments that have missing or broken marble finials. I decided to try to make replacements out of concrete. I used my Revopoint POP2 3D scanner to scan a broken finial. Aligning the finial axis to the CAD coordinate system I sketched the finial profile. Rotating the sketch about the finial axis gave me a nice 3D model. I then subtracted the finial model from a larger cylinder and made a mold.
Because of the large size, I had to break the mold into four pieces so they would fit on my Prusa 3D printer. It took over 2 days and a spool of filament to print each piece! It took two tries, but I am now making replacements!

You can use this same approach to make other yard art like gnomes, angels, cupids, etc.

Here are some of the things I used:
* Revopoint POP2 3D scanner ( https://amzn.to/3uiSDsO )
* Magnaflux Spotcheck ( https://amzn.to/33ayav7 )
* White PETG ( https://amzn.to/3Lg00r4 )
* Petroleum Jelly ( https://amzn.to/3Tk1OT1 )
* D2 Gravestone cleaner ( https://amzn.to/3tfNK2w ) or ( https://atlaspreservation.com/product... )
* Stone setting compound ( https://atlaspreservation.com/product... )

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