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B9 3d printer

Anyone have the B9 Core 550 printing machine? Pros and Cons?

We’ve got a good handful of 3D printers at my shop, ranging from a couple SolidScape MM2, to an RTM 2020 (as far as we know, it’s the only operating one in the world), to an ever growing collection of resin printers.
We had the original B9 creator, and it was…not great. Some people had a fair bit of success with it, but we couldn’t ever get a decent print from it.
As far as the B9 Core series, I think they are waaaaay too damn expensive, especially given how cheap and reliably you can get good resin printers nowadays.

We’ve got an Elegoo Mars 2 ($300), an Anycubic Photon Mono SE ($450), and recently picked up a FormLabs Form3 ($3500).

The Form3 produces wonderfully detailed prints, and we use it when we have a particularly detailed piece we need to produce.
For pretty much everything else, the Anycubic is our workhorse. It produces really good quality prints, and really quickly.
There are a very wide variety of castable resins available, but the one we use the most is ‘PowerResins Wax’; it burns out at a low temperature (we do a lot of stone-in-place casting), with little to no ash.

The primary difference between all these printers is the curing method. The Anycubic and Elegoo use an LCD screen to cure each layer, the Form3 uses a laser, and the B9 uses a projector (DLP).
DLP printers can achieve some incredible detail, so in my opinion, they are the best.
That being said, the B9 is far too expensive, and doesn’t offer anything over these less expensive printers.
Speaking of DLP printers, Anycubic currently has a kickstarter for their own DLP printer (The Anycubic Photon Ultra), and you can get $100 off if you pledge, and pick it up for $499 (as of 10/4/2021, there are only 10 days left in this kickstarter, then the price will go up to $599). This is a fantastic price, and I would highly recommend thinking about picking one up (we definitely are).

So, to answer your question more directly: don’t get the B9 unless you just have 12 grand burning a hole in your pocket. I don’t know how much experience you have in 3D printing jewelry, but if it’s not much, then most definitely pick up an Anycubic first and play around with it.

Hope this helps! Let me know if you have any other questions. I’ve got almost 15 years experience in 3D printing jewelry, so hopefully I’ve learned enough to answer any questions you have. Cheers!

AurumArcanum, I just opened a thread about castable resins, but I just read your post and figured I’d just ask you.

Do you know what the differences are between castable dental resin and castable jewelry resin? Does the dental resin need a higher temperature during the burnout to eliminate all of the resin? We have our hands on some dental resin and made some prints with our Elegoo Mars 2. We typically max out our burnout at 1350F.

I haven’t really had any experience trying to cast or print with dental resins. But, I don’t see why they would be much different than the jewelry specific resins, aside from maybe aspects like detail retention, shrinkage, and post-curing processes.
Most of the castable resins I’ve used prefer a burnout at 1350, with a couple performing quite well at 1000 (the max temp we use for stone-in-place). So I don’t see why the dental resins would be different from that. The big difference comes from ramp rates and hold times. At the lower temps we hold for a lot longer to ensure the ash gets thoroughly burned out.
What brand is your resin? Theoretically they should have a burnout schedule out there somewhere (although I’ve noticed that some companies really bury that information for some reason).