I'm really interested in buying an SLA printer - there are a few good

3D Printing
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1

I’m really interested in buying an SLA printer - there are a few good looking ones coming onto kickstarter now - however, I have an idea which is going to require the use of clear resin. Anyone know of any SLA resins which work at ~400 nm?

All the searching I’ve done so far has given me clear resins but with no info on whether they will cure at 400 nm :frowning:

2

Just dug through my email for this:
"Hi Anthony,
All current MJ resins cure with UV-A/B/C up to around 420nm. A lot of other printers use 405nm lasers with our resin, although most are between 50mW and 120mW. I know the mUVe printer started off with 20mW, but thought it was too slow. Even 5mW will cure it, it just might take a bit longer.

Josh @ MakerJuice"

So it looks like MakerJuice would work fine.

3

Bucktown polymers sells two lines of resins that are true UV curing or visible light curing. Technically 405nm is really at the low end of the visible light spectrum. I have used both MJ and BTP and both work just fine with 405nm lasers. A big key to SLA quality is the right balance of layer thickness, colrant in the resin (and the resins absorptivity), laser power, and exposure time.

4

Thanks for the replies guys - got this back from the people making the Kudo3d

“You can use clear resins from other suppliers. Currently our resin
partner Makerjuice does not produce clear resin.
Please notice that clear resin has lower resolution than colored resins.
Red and yellow usually have better resolution.”

5

I definitely have some “uncolored” resin from makerjuice…

6

…weird - I wonder why they would say that. Unless, that particular resin is no longer available / it’s not compatible?

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http://makerjuice.com/product/subg/ It is the Unpigmented resin. Usually they sell it like this so you can experiment with how much pigment you want to add. I have not tried printing with it yet but I speculate that it may have a slightly yellow tint to it when cured. I expect that my resolution will decrease some and I will have to have low exposures when I do try it.

8

The Kudo3d print pics look like some were done using different resins too. My Makerjuice red is not quite as opaque. But that’s subjective and my prints have been done using laser SLA.