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

[@johnmcginnis5201]

Kudos A Tip: Take a small amount of concrete and make very thin slurry. Pour that in and rotate the mold to coat the surface. Then add your mix.

[@SerendipitySue]

On following castings, I've made the concrete more soupy when I pour it. It seems to have solved the bubble problem

[@joannecoons8076]

I almost cried when the tape broke but nice solution saved the day. The finial looks beautiful as does the cemetery. Nice job Chris!!

[@jeffreycutler7364]

Looks awesome! If you end up having to print more molds I would key the interface between the top and bottom and rotate the seam 90 degrees as well.

[@SerendipitySue]

yup, I originally was going to glue the two halves together. I thought getting the four pins to align might be a problem. Having smaller pieces makes removing the mold a bit easier. top/bottom pins would definitely make sense. This was my first attempt. I'm not doing too many iterations at nine days 😆

[@jeffreycutler7364]

@@SerendipitySue Completely understandable! Your solution to the tape problem was a great idea, will be stealing that. :)

[@stevebabiak6997]

Top and bottom pins would make more sense when the item isn’t axially symmetric, for example if the item was a crucifix where a rectangular cross section occurs.

[@sald2of6]

Wow - what fantastic way to utilize 3D printing and help out your community. I really have enjoyed your videos. Keep it up!

[@Music-ry2jb]

Great results. I want to mold concrete wall baseboards (200x100x20) would you recommend a 1 part or 2 part mold ?

[@dennishedrick5308]

Thanks for your innovative ideas.

[@eileenbrodie7686]

Nice that you’re giving some TLC to the monuments. My little brother was almost hit when he was a toddler by a falling finial at a cemetery we were walking through with my mother. I wondered why you didn’t let the rebar extend past the base of your reproduction, since the original had that and it might help with securing the finial? I don’t know about how strong that mastic you used is? But great work-I always enjoy your project videos. (Btw, Ryobi’s own 18v inverter and USB C battery power supply and CHARGER unit has finally dropped! Mine arrives today.)

[@SerendipitySue]

where did you find the new inverter? It is still showing "coming soon" on Ryobitools.com? www.ryobitools.com/products/details/46396035356

[@leightonwestbury92]

That's awesome I think leaving it pitted would've better matched the existing weathered monument and also save you a little time, just an opinion

[@HalfTonEnterprises]

I could not make out which software you used to extract the profile and make the mold. I'm very interested in how you did that. Thanks for a very informative video..

[@SerendipitySue]

I have an old copy of Geomagic Design-X

[@aspdad1]

Hey Chris, how much did the finial weigh when you were finished?

[@SerendipitySue]

18.6lbs

[@songlinfan8288]

Hi, I'm currently working on a book about point clouds and just happened to write about reverse engineering. Can I take two or three images from your video to explain reverse engineering to my readers? Of course, I will state the source of these images in my book (e.g., a link to the video). Thank you.