Meet the new (handicapped) Saturn 4 

Hey look that's great and all but do you hear us about the firmware? Are calibration and recovery on power loss features able to be ported over to this machine? That would honestly be more exciting for everyone I think, and I'd rather make that video.

This is why I watch you real solution suggestions to real issues we have as 3D printer hobbyist Im in the market for a new resin printer after my mars 2 pro killed another lcd absolutely using your reviews to make my next purchase

I was going to buy a saturn 4...nope not even an option now since the exposure thing is a deal breaker for me lol

​@@OnceinaSixSide I respect you alot for not instantly backing down just for getting a review unit of the Ultra. Some channels might would have done that

Send me one too, maybe you'll convince me to give up Anycubic.

100% the same.

Appreciate that! 🤘

Same. I prefer your style of real life walk through over scripted waffling any day.

Oh shit I left when the patreons rolled didn't realize there was 30 minutes left, literally thought he was so pissed he was like fuck it buy me a coffee.

No we need them to bring the calibration tool to this firmware.

@@Rocknoob49 the ultra has more than calibration, the biggest new feature is the tilt release.

We'll get there eventually!

That makes a lot of sense! But even so I feel I have a duty to kick up a stink about this, and especially so in this case where they're debuting two nearly identical printers. I will not rest until all manufacturers are giving us calibration tools all the time 😂

Yes, but this calibration stuff is SIMPLE coding to implement, as has nothing to do with any other aspect of the printer (camera etc). It is just incredible that almost no manufacturers have included this super simple function to ALL printers! It is just ludicrous. And to do it on one 'higher' version and not its 'brother' is even dumber!!

​@@MrPetersVideo It may seem simple, but I belive it's really not. Adding a menu to do a masking test or to control the Z axis is easy. A range exposure test needs to quite heavilly modify the way it prints, wich is way harder if the "printing subroutine" was not designed with this option in mind. Read bellow if you want details on why. I see two main problems that could be a huge wall to implement the feature. Timing, and data transfer. First, timing. Microcontrollers handle time sensitive tasks with "timers" (hardware counters that increment at a chosen speed) on these timers, you can set up interruptions, that will automatically check if the value of your timer is equal to a chosen value and stop the curent program running to run a bit of code of your choosing. Well the first problem is simply that timers are not unlimited. Since they are hardware, you often have one, two, four or eight of them, rarely more, and each has a limited number of channels and interrupts you can have. So, here, if the delay between turning the screen on or off is handled by two interrupts on the same timer, here you might not have enougth interrupts available. Or you could try to keep reconfiguring the interrupt timing on each screen change, but that would be messy and pretty hard to maintain probably. Kinda like juggling with a hammer, a saw and a screwdriver while woodworking because you don't have a belt to store them. The second problem is data transfer. Small microcontrollers have a small ram, and big data transfer (like video) are a challenge. Even a 12K raw image is a challenge ! Fortunately, some really smart people invented the DMA (Direct Memory Access). To keep it simple, it's a peripheral (so not processed by your computer core) that you configure once, and then, on a frequency will scrape data somewhere and put it somewhere. This somewhere can be another periferal (a signal generator for example), a remote data storage (an sd card), an output (a display driver) or even a section of the RAM. That's a wonderfull way of mooving around a big amount of data. The problem is that with a calibration routine, you need to turn on only part of the screen. And 99% of screen drivers won't let you actually modify only part of the display. So, if the slicer doesn't provide you multiple images per layer (wich would require to modify the slicer, and would multiply the file size by as much object you want in your range test) you will need to modify these images on the fly to black out some parts of it. That means loading it in the ram (maybe you don't have enougth ram to begin with) and creating a copy you can then send. And this copy must have up to 75% of it's pixels forced at 0. Assuming an 12Kx6K image with 1 bit color (so not even able of antialiasing), 75% of the image would be 6.75 milion bytes. Running on a microcontroller at a few tens of MHz that is far from a trivial opperation, and on short intervals for your callibration could definitely cause issues. So yeah, not that easy.

Do the base model and ultra even use different controller boards? I'd be willing to bet they just remove that feature from the base model firmware to differentiate the product lineups. Car companies do this shit all the time, I can't imagine Elegoo wouldn't.

@@rustyshaklford9557 No doubt from me. One doesn't have wifi (and has not the cutout for the connector on the side), no camera, a different front screen, and a different firmware. It would be really odd to have a mechanically identical printer (except for the tilt release, but that's only a stepper motor and a few laser cut/cast metal part, not enought to justify the price difference). Most of the production costs from car companies are mechanical parts, raw materials, R&D and certifications, small side features are not really expensive. In consumer electronics, design is quite cheap. What makes the bigger difference is the price of the components of the total assembly. A good example in a similar case would be the main board of the bambulab x1c and p1p/p1s. Even tho one is the stripped down version of the other, the few dropped electronics peripherals (an LCD touch screen replaced by a monochrome screen and button, and a lidar sensor) they redisigned the main board and changed the microcontroller (wich caused minor issues elsewhere, like for example the camera framerate stream being limited at 3 fps and the object skipping feature getting a delayed release).

Praise be 🙏

Truth 😂

The jerryrigeverything of resin printers, at least it still works.

Without the tilt there are better and cheaper saturn 4 alternatives

@@Bobby11 Like what, I really would like to know, since I'm in the market. Need to replace a 7 year old resin printer.

What ones would you recommend? I am likely getting a new printer this summer and t he 4 Ultra was what I was looking at

@@zackvirgo3597 Honestly GKtwo, 4 Ultra and M7 pro are the ones I've been looking at. TBH anything is an update from this wanhao d7

I'll be waiting for the GK3

That Geek Detour guy makes some pretty neat videos! 😁

@@OnceinaSixSide He does... Thanks! I mean, he might appreciate if he ever reads this. I read somewhere that he struggles to make the videos. But that's just a rumor.

I feel the same way! Love the green! An option to pick the lid color would be nice.

I'm keen to have a look at that printer too, I hear it's fast! How do you find the two pumps? Is it a pain in the ass to change out resin?

@@OnceinaSixSide Honestly I dont like using resin pumps. I just rather pour it out myself back into the bottle

You’d have to get a magnet plate, which i’m fine with. I’d rather have the self leveling

That's great! The m5s pro + Sunlu abs-like is a phenomenal combo. Happy printing 🍻

Just read the FAQ and there wasn't a single mention of it 😞

​@@OnceinaSixSideSorry it's under the answered questions at the bottom of the Saturn 4 page.

@@FlaccidGnome I'm struggling to find it 😅

@@OnceinaSixSide Sorry, I pinned it to the discord in general chat.

Hmm lots of good options. Latest gen stuff is cool, great deals to be had on previous gen also. I talk about this at length at the end of this video and include links in the description

1- Wifi is most likely an add-on part like on the saturn 3 ultra. 2- Yes, it's most likely the same code for both, which will enable some underlayers depending on the hardware present. So on the ultra, it detects and will use the tilt system, the wifi and the camera. Most likely the motherboard for the saturn 4U has more ROM and RAM. 3- you can make RERF using UV tools, it's not a convincing argument to buy a 3d printer. 4- Most consumer market manufacturers use this ultra-agressive , the saving grace for Elegoo is that, at least they delivered in the past. But it's really time to change this trend

This is a bad idea as settings often are not the same between identical printers and resins due to variances in hardware, firmware, quality, batch, environment etc. These can be minor on their own, but stacked creates enough difference that someone else's settings are useless. ALWAYS take the time to calibrate your own exposure value.

@@OnceinaSixSide aww okay I understand I’ll most likely get the printers you’ve suggested ina month or so. In all honesty I’m just Trynna justify my purchase which is idiotic of me, I knew I shoulda got the elegoo Saturn ultra dammit. All your points are valid, I’m subbing to stay informed

​@@ItIsTaeeeappreciate that. You'll have a good time with this printer, it's got everything you need to produce great prints. Exposure calibration tools and recover on power loss are nice to haves that I'm just frustrated Elegoo teased us with but only rolled out on the Ultra.

I've actually got all the IPA I've ever used since getting into 3D printing stored away in bottles in my laundry.. Video on this very topic definitely pending haha

@@OnceinaSixSide you aren't the only one... someone needs to make a commercially available recycler

It's still in beta, you can download it from their Discord server.

Nope no USB on the 4. I don't think the 4U has it either! :(