Very neat to see another 3D printer/CAD enthusiast! I've been running a 3D Printing/Design service for some time and have designed some custom items for users around here -
★ Digis 3D Printing / Design Service ★ -= Crypto, Logos, Figurines, Custom Parts.
Although I'd love to hop onto the exotic material printing bandwagon, I haven't seen much progress or actually finished pieces (asides from CAD drawings) that match the level of detail and quality required to produce a part that competes with standard manufacturing practices.
Do you happen to have any photos or samples of finished pieces you've created in exotic materials (bronze, copper, 14/18k gold plated, sterling silver, 14/18k gold, platinum)?
Awesome stuff man, the first printer I ever owned back in 2012 or maybe 13 was a wood framed makerbot, I wish I still had it LOL! I spent hours tinkering with the old girl, but I don't have pics from then.
I then moved on to working on a full colour powderbed 3D printer (projet 660) I was involved with some friends who started a 3D selfie business on the side. This is where I learned the bulk of my CAD skills as I did all the digital post processing of the raw scans to get them print ready! Printing in 1 or 2 colours is awesome but printing in 6 million colours (full CMYK) and adding texture maps to the models takes it to a whole new level and I learned an unbelievable amount during the companies short life span.
Here is a press release from a national news spot on the company from back in 2014.
https://globalnews.ca/video/1327703/new-company-offering-3d-selfiesMy current work with 3D printing is with a client who has the 2 largest DMLS (powderbed laser metal 3D printing, true additive manufacturing) machines in Canada. They are a tool and die company that is a T1 automotive supplier. They print exclusively in maraging steel (MS1) and according to my client they are revolutionizing the large high pressure die cast world by adding in conformal cooling to die cavities. These conformal cooling lines are impossible with traditional manufacturing process. I am not allowed as you can imagine to share any of that proprietary work here.
I have not printed in any of the precious material before and I wouldn't be the one doing it. I would upload my designs to Shapeways and have them do it. This way I have a lot more confidence that the quality of the metal is what it is supposed to be.
I guess at this point I should mention the process a company like Shapeways uses for "3D printing" various metal materials.
3D printed precious metals usually use what is called a loss wax cast method, which allows for high precision jewelry. I guess it may be a bit misleading as the end product is not printed but it is cast. Basically a high resolution 3D printer creates the model in wax. Then liquid plaster is poured around the wax model. Once the plaster sets the wax is melted out in an oven and you are left with a nice one time use mould. Base metal is poured into the mould and then broken away to leave the cast of the original model! It can then be plated or polished or any other post processing technique desired.
I haven't got any example of my own work done like this because I haven't done any yet. I am going to though because it's just to cool not to LOL! I will update the thread with the first piece I do, show the design and when I get the finished product back will do a review and post some pictures. I think even if I don't sell any enough folks will be interested to see it!
Check out Shapeways to see tons examples of jewelry created this way, the detail and finish appears to be high quality. But as you know yourself there are limitations on minimum sizes so stuff doesn't break during post, shipping, use etc etc!
Now back to some of the actual questions LOL
I would do it in any material the manufacture is offering. I don't have a stainless option currently. They do have a .925 sterling silver option but not a .999 option.
For the other design questions I will do up a few more designs and see what people think. Originally I had thought of a display piece but if people want something to wear I can handle that!
I'll update with more design pics when I have them.