Fan Boy Foibles  

RE: Fan Boy Foibles

It depends on what you print with which material.

If you mainly print pla or petg or you don't need the extra height, then the Core One will give you a little more speed.

The Benchy in the picture is a Bonkers Benchy that is printed in 8 minutes. You shouldn't expect too much.

RE: Fan Boy Foibles

For me it's going to mainly be the 55c chamber temp for less warping on ASA etc. Plus I already have all of my printers in an enclosure, so it saves having to buy a separate enclosure.

I also think the print quality will be improved over time like it did on the MK4.

I would also caution taking any thing on that channel serious.  I had to unsubscribe because she had no idea what's she's doing.  She couldn't even figure out where the NFC was on that core one video.  This shows that she couldn't even take the time to read the instructions before doing the video.  Nothing against her personally, but she's just not someone I would consider knowledgeable.

On the XL she kept trying to print these huge prints on the satin sheet, which sucks for PLA, especially a huge print, and then act confused as to why it didn't stick.  I kept suggesting she buy the PEI sheet, but she claimed it wasn't available, when it was. 

I've also watched some other how to videos where I am just cringing.

Sorry for the rant, just my opinion.  I this a better review would be from CNC kitchen or made with layers. 

RE: Fan Boy Foibles

Unfortunately, I have to agree with you. This channel describes this more from a typical user perspective where even the mini instructions for commissioning are not read. Only to realize that you have to insert the USB stick at the first start.
So rather someone who uses 3D printers as a tool and is not interested in it beyond what they need for their business.

Nevertheless, a likeable woman for whom I have respect for what she has achieved.
I just wouldn't recommend her as a source for 3D printing to the advanced user.

RE: Fan Boy Foibles

I agree - I remember thinking of the facepalm emoji when she was trying to NFC scan the display screen!! lol

Also if you are measuring quality, why would you even choose the bonkers benchy in the first instance, when that's a measurement of speed over quality?!  Certainly wouldn't be my choice for a first print.

RE: Fan Boy Foibles

Only an idiot asesses a new machine with a bonkers benchy.

The standard benchy is a torture test to be used to check most of the parameters affected by fine tuning, frankly, a perfect benchy, whilst good, is irrelevant on a newly built or newly delivered machine as most of the fine tuning will drift as the printer shakes down and runs-in.  All the initial setting up will have to be rechecked at your first monthly maintenance session after which there is a good chance the machine will remain stable indefinitely.

The Bonkers Benchy is just that, bonkers, it is a nod to a minority sport racing to produce a benchy in minimal time - in the process it loses most of the benchy's useful diagnostic properties and just produces a flimsy, useless, trinket.  That said, it is only printable on a perfectly calibrated machine but may well stress that machine so much that it needs attention before attempting a second one.

Cheerio,

RE: Fan Boy Foibles

Posted by: @diem

[...] a perfect benchy, whilst good, is irrelevant on a newly built or newly delivered machine as most of the fine tuning will drift as the printer shakes down and runs-in.  All the initial setting up will have to be rechecked at your first monthly maintenance session after which there is a good chance the machine will remain stable indefinitely.

What "running in" and "fine tuning" do you have in mind? Beyond checking belt tension, what would a Core One user need to do or be able to do? It seems that Prusa firmly relies on factory tuning and the assumption that it will hold during shipping and operation? 

(I'm excluding the potential need to straighten out the X gantry here. That's "pathological" and apparently due to excess manufacturing tolerances, not run-in -- hopefully to be fixed soon in production. Likewise the lack of grease on the Z screws which was reported in some units, right upon receiving them, which looks like a manufacturing oversight.)

Stick with standard profiles for the first few weeks, don't go mad with torture tests or temperature towers and don't fret about minor artifacts.  Your printer is bound to have been shaken up in transit but it will settle with use.

Then in a few weeks: https://help.prusa3d.com/article/regular-printer-maintenance-core-one_829710

And your printer should now be stable.

Cheerio,

RE: Fan Boy Foibles

the Core One will give you a little more speed.

Not really. The last few days I've been printing the same stuff on a couple of Mk4S and the CORE One in parallel, and in each case it essentially takes the same time. Caveat that I care more about quality than speed, so it's using the Structural profiles (only modified to use Cubic infill) on those machines. Maybe using Speed profiles would show more of a difference.

RE: Fan Boy Foibles

Thanks all for the advice.  So for someone who prints exclusively in color PLA, the advantages of moving from a MK4S/MMU3 to the Core One are...

-- More Z headroom (for single color prints)

Is that it?  Am I missing something?   This is a bit of a dead end for me until a solid multi-color solution is demonstrated.

More Z headroom (for single color prints)

Smaller workbench footprint, less susceptible to drafts, safer around pets/children, more potential for refinement.

This is a bit of a dead end for me until a solid multi-color solution is demonstrated.

The XL is the solid multicolour solution - but that's rather a waste of the XL's potential.

Cheerio,

RE: Fan Boy Foibles

Posted by: @diem

[...] more potential for refinement.

That seems like a very friendly way of saying "it's worse"?  😉 

I'll remember that phrase in case I ever have to write an employment reference again (which in Germany can't say anything directly negative): "He has great potential for refinement."  

RE: Fan Boy Foibles

That seems like a very friendly way of saying "it's worse"? 😉

No, it's pointing out that the Mk4 has already had two years of refinement and the low hanging fruit have been picked.  The Core One is just starting out, incorporating most of the lessons from the Mk4 but with a whole new set of even better possibilities in front of it.

Cheerio,