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Re: Alternatives - 12 years ago

Never let a little "knowledge" stop you from trying something new!

by B9Creations - General

Re: Alternatives - 12 years ago

There are reasons I made the B9Creator the way I did. Everything is a trade off. One trade you might be overlooking is the non-linear increase in power required to cure "bigger" objects. Best! MikeJ

by B9Creations - General

Re: Making another batch of B9Creators - 12 years ago

FYI, Today is the last day to get in this batch via Kickstarter!

by B9Creations - For Sale

Re: Awesome new 3D Printer - J-Rev - 12 years ago

QuoteJapica3D Just an FYI, the Eiffel tower is not from this Form1, it doesn't even look like it, if you would put on some glasses. Its actually a rendering, way to go idiots. Sorry, this is an exact photo shopped copy from a Form1 print image. It is not a render. Take a close look at the attached image, the position, lighting and color make it clear where your tower came from. Instead of cal

by B9Creations - General

Re: Awesome new 3D Printer - J-Rev - 12 years ago

Anytime a company thinks it's OK to photo-shop in a fake build, I'd say buyer best beware... That "Eiffel Tower" build looked very familiar and a quick google search found the exact tower image on multiple links (It was actually printed on a Form1). For example: I doubt they asked anyone's permission to use that Eiffel Tower print image. And to pass it off as something their machine produce

by B9Creations - General

Re: Visible Light / Near UV curable resins - 12 years ago

If I had to guess, that's a sheet of Teflon FEP. It's purpose is not to absorb light but rather as the cured object is lifted up, the teflon sheet peels off and that's what allows the most recently cured layer to detach from the bottom of the vat. I assume there's some sort of frame or something that seals the film to the bottom and keeps the resin from flowing under the film?

by B9Creations - Polymer Working Group

Making another batch of B9Creators - 12 years ago

We're using kickstarter to launch another run of B9Creators. Thanks! MikeJ

by B9Creations - For Sale

How to make a powerful "post cure" box for < $60! - 12 years ago

For those printing with UV/Visible light resins I thought this was a great idea. The solar powered turntable is genius! The white box is made from two UV fingernail curing devices. All components can be easily sourced from amazon, etc. Original posting link MikeJ

by B9Creations - Polymer Working Group

Re: 3D printer Suggestions - 12 years ago

EagleBaby Wrote: ------------------------------------------------------- > also which 3D printers would you suggest for a > lower build volume with good detail? B9Creator can do 50 micron XY and 25 micron Z but at that resolution build size is reduced to 51.2 x 38.4 x 200 mm. At 100 micron XY and 25-100 micron Z build size is 102.4 x 76.8 x 200 mm.

by B9Creations - General

Re: What 3 things..... - 12 years ago

yydoctt Wrote: > Apologies for taking it a bit off topic, but in > your campaign you said the following: "Once > obligations to supporters are met, I will post all > original hardware (CAD) files and software (source > code) publically under an open source license." > > As I have not backed the campaign I have no right > to demand you deliver on that promise... I am deli

by B9Creations - General

Re: What 3 things..... - 12 years ago

yydoctt Wrote: ------------------------------------------------------- > (Has B9 published source data yet?!) Firmware and software source code is available via www.B9Creator.com (under Documentation) Working now on manuals and tutorials but plan to post CAD data as soon as time allows. MikeJ

by B9Creations - General

Re: Tantillus resolution and comparison to other printers - 12 years ago

Our resin burns out, pretty sure no one else can claim that at a price anywhere close. MikeJ

by B9Creations - Tantillus

Re: 3D printing on the moon - 12 years ago

Interesting new JPL rock grappling tech: Anyone going to 3D print something like this?

by B9Creations - General

Re: 3D printing on the moon - 12 years ago

Overview The moon is a stepping stone for us. We must take care of how we step. But stepping forward and out of the cradle is perhaps better than stepping all over each other? The transfer of energy production and industrial manufacturing off-world is a worthy goal. It offers a realistic long term hope for that ignorant, confused and immature child we call humanity. The hope it offers is

by B9Creations - General

Re: Open source lie deleted, shame on you? - 13 years ago

gerards1111 Wrote: ------------------------------------------------------- > Like b9creator, his findings are going o be > released in 4 months. Imagine the leaps that could > be made if he were to summarise his findings and > list his resin supplier. Not going to happen as > open source begins when he has made enough for his > 5 months work. Wow... You do know that over the la

by B9Creations - General

Re: B9Creator - 13 years ago

On the bottom? I like having the projector accessible and cooling is not an issue. If someone was using it outside, in bright sunlight, sitting on a mirror ;-) there might be a problem with light pollution, but haven't seen any with normal indoor lighting.

by B9Creations - General

Re: B9Creator - 13 years ago

I've seen that Illinois video, pretty inspiring stuff!

by B9Creations - General

Re: B9Creator - 13 years ago

For both our method and the top down method the layer thickness is determined as the distance between the last cured layer and the projection plane (surface for top down, vat bottom for bottom up). BUT, some areas (overhangs, etc.) won't have cured previously cured layers to "stop" the light from going too far. Both methods control that with pigments which absorb the correct frequencies and lim

by B9Creations - General

Re: B9Creator - 13 years ago

Yes, the resin cures like a glue. I've seen those experiments and they demonstrate the basics of the process very well. But in practice, especially on a larger object, you must submerge the object deep enough so that the resin flows over it and then raise it to the next cure position (and the resin on top must flow off). Most "good" resin fluids are more viscous than those in the experiment and

by B9Creations - General

Re: B9Creator - 13 years ago

Right, we move the vat to release the object from the projection plane. Top down would require a film and wiper to ensure a consistent layer between the last cured layer and the projection image. Gravity hasn't been an issue for these objects, they are strongly attached to the aluminum build base.

by B9Creations - General

Re: B9Creator - 13 years ago

Sorry, completely missed that. Photo-initiated polymer resins that react in the visible light spectrum aren't really new and there are open source formula's online: [3dprinter.wikidot.com] Mounting the projector above would require a deep vat of resin, putting it underneath reduces the amount of reserve material needed. The idea of using light radiation to solidify a liquid resin dates back to a

by B9Creations - General

Re: B9Creator - 13 years ago

I've posted "August" as the delivery date for kits. So I'd estimate the end of August at the latest. If I find I have time to organize everything and get it posted sooner I will do that, but my first priority will be delivering the promised rewards. Mike

by B9Creations - General

Re: B9Creator - 13 years ago

- Thanks! - All CAD, Gerber and Source Files will be posted on b9creator.com once all backer commitments have been fulfilled. I'm sure there are a lot of differences but I don't know the other design well enough to list them. MikeJ

by B9Creations - General

B9Creator - 13 years ago

"And now for something completely different..."

by B9Creations - General

Resin based DLP printer on kickstarter - 13 years ago

I think we're off to a good start! B9Creator - hires, open, DLP resin based kickstarter project Best, MikeJ

by B9Creations - For Sale

Re: DIY Photopolymer machine - 13 years ago

Shameless plug for my kickstarter project:

by B9Creations - Polymer Working Group

Re: Slic3r is cool so far - 13 years ago

Sounds interesting.

by B9Creations - Slic3r

Re: UV curing photopolymer for rapid prototyping - 13 years ago

My membership in the yahoo group was approved, I was just a bit impatient. Is it possible to add a forum section to [3dprinter.wikidot.com] ? MikeJ

by B9Creations - Polymer Working Group

Re: UV curing photopolymer for rapid prototyping - 13 years ago

I have been reading the diy_3d_printing_and_fabrication Yahoo group all day...(only up to May, 1500 more messages to go). Just came across this one, it's all starting to make sense to me now! :-) (BTW, can some approve my request to join the Yahoo group?) ________________ RE: wiki By the way, I have signed in as "spota". Sorry if there is a mixup in user names on the email list, so here is a gl

by B9Creations - Polymer Working Group

Re: UV curing photopolymer for rapid prototyping - 13 years ago

2300 lumens, 2000:1 contrast ratio. Probably not the best but one I happened to already have. I certainly expect to modify the projector/lens, etc. I'd much rather spend more on the final machine if there's a significant "sweet spot" in the resin trades that result in lower material costs.

by B9Creations - Polymer Working Group