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hey everyone this is the first in what I
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hope becomes a long series of quick
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helpful videos so I'll say it right up
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front if you want more of these slam the
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like button share the video boot it into
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the algorithm's face and drop a comment
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telling me what printing tips or myths
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you want me to tackle next right let's
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go hi I'm Ross this is Fammer Videos and
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today we're talking about how to get
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perfect exposure when resin printing and
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why that's probably the worst thing you
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could aim for if you've seen any of my
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review videos you'll have seen this flat
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exposure test i use it in every review
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for three reasons one is because it's
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the one I started with two it's got a
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measurable result you can count
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literally and three because I use it
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every time it gives us results
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comparable across all of my resin
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printer reviews and when we see this a
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lot of people understandably focus on
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the center of the test where the little
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logo lines up because someone once said
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to do that when it first came out out
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and years later I still see that advice
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going around and it seems logical it
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does if the lines are sharp you're good
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if they're mushy you're not but that
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method it's subjective what actually
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works and what you don't need to
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question anybody about when you see it
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and what I always recommend is checking
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the holds and posts on the left side of
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this test more posts than holes
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overexposed more holes than posts
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underexposed equal number of each
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balanced perfect yeah it's not a guess
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it's not subjective it's countable
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measurable and that's why I love it
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everything else on this test logos
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resolution bars a ramp it's just detail
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sampling it shows you what your printer
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can do but not what it can survive doing
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that's the catch perfect XY exposure
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doesn't always equal reliable results
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accuracy isn't strength it won't tell
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you if your cured layers will survive
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being peeled off the release film or if
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your delicate little sword blade is
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going to give up halfway through a print
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some resins stretch and bend some snap
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some do both if you take your perfect
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exposure and print a pre-supported model
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odds are something's going to break and
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let's be honest most of us are printing
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pre-supported models now whether they're
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well supported or not is another matter
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so then we have to ask a question and
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this is to ourselves what do we actually
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want successful prints which means most
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of the time probably nudging the
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exposure up slightly yes we'll lose a
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bit of detail but we'll also lose the
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frustration of mid-print failures now
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before I move on and because this is the
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first one I'm doing in this format I
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need to give a quick shout out to this
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video's sponsor it's sponsored by Eligu
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they paid for the time to make it but
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they don't get to approve the content or
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my opinion that's all me we've agreed to
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do two videos to start and if they help
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enough people we'll probably do more so
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again like I said in the intro if you
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like this like it share subscribe all
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that jazz right back in so you're
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probably wondering why even bother using
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that flat exposure test at all well for
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me it's now something I started with and
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again makes printers comparable across
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all of my videos but the main reason
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speed this prints in about 12 minutes at
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30 micron layers and it uses only 1.6 6
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ml of resin the cones of calibration for
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example uses 2.7 ml of resin and can
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take roughly five times longer so I use
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that flat XP test to do nothing more
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than get me in the exposure ranges
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ballpark but if you've got a printer
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like the Saturn 4 Ultra or Mars 5 Ultra
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or you can run an RF test on other
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brands yeah you can run multiple
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exposures on one plate so maybe skip the
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flat test and just jump straight to what
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we're going to cover next which honestly
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is one of two options you could just
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print pre-supported models and if they
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fail bump up the exposure and try again
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for a faster way of getting to it
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because this is now shorter than a mini
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yeah print the cones of calibration and
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again increase or decrease the exposure
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and try again now whilst the cones does
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have parts on it which measure XY
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accuracy really well what we want to
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actually aim for here is support
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strength you want the success cones to
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hold and the fail cones to fail that's
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the Goldilock zone and yes we probably
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do have to overexpose a bit beyond the
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perfect exposure balance but if you're
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going to run this I highly recommend you
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having a full read of Table Flip
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Foundry's website as to what you need to
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do but the key thing to follow I would
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say is the flowchart on that web page
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follow it but it also proves that
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perfection isn't the goal only one route
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to the goal has perfect the others are
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about acceptable results and that's just
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fine not every resin and printer combo
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is going to print perfect what we want
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them to print are the most accurate
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models possible successfully and I would
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argue that success is a bigger goal than
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100% accurate especially when 99%
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accuracy is often achievable but again
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just be aware the cones of calibration
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aren't gospel they're also a guide
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pre-supported doesn't equal wellup
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supported if you want fewer surprises
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use models from reputable sources in
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regard to supports i regularly rate the
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ones listed on Atlas 3D's creative
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partners page because Atlas 3D kind of
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set the gold standard amongst supporting
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miniatures and one last thing even if
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your exposure spoton you can find that
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prints still fail depending where they
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are on the plate and that's thanks to
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uneven UV spread especially on newer
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machines with COB light sources but
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that's going to be content for another
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quick video and if you want that again
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I'm going to encourage the liking
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subscribing and sharing thing overall
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the big picture exposure test fast
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instant detail check cones takes a bit
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longer reliable strength check and also
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covers XY accuracy as more of a
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secondary thing if your goal is the
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sharpest detail use the XP rangefinder
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and count the number of posts and holes
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that is a measurable way to find out
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what the results are but this may leave
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you supporting your own models entirely
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if you want your models to print
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reliably maybe use that test and bump up
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the exposure slightly or trust the cones
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but the whole point of this video was I
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hope it encourages some people to stop
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chasing perfection which is a comment I
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see on most of my videos most of the
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time what's the most accurate printer
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instead start chasing results perfect
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exposure isn't always the best i want to
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say thanks again to Eligu for sponsoring
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this video and thank you for watching a
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huge shout out goes to our channel
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members whose names are on screen now
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and if you've got a tip that you want
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covered drop it in the comments until
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next time smoke me a kipper i'll be back
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for breakfast faux hammer out
