SUP W/ THIS!?: Odd "ripple"... Same thing on two printers (same make/model).

3D Printing
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21

Yes, it’s printing OK, now. In fact, it looks quite good:) The first layer was just so odd. Plus, in spite of nudging lower, some lack of adhesion/contraction was still happening. Odd. Perhaps it’s a “non problem”. I have to do some testing, though, just to satisfy the curiosity:)…

Thx for all your input. Much appreciated. Keep up the great moderating.

P.S. Thantik is an acquaintance of mine. Our makerspace (Factur/Orlando) has DeltaMakers. In fact, I’m the onsite, de facto 3D printer tech here. I go to the shop regularly and enjoy shooting the breeze w/ all the DeltaMaker folks:) I’m learning so much there… and here at Factur. I’m even branching out to the laser engraver/cutter: fixed a flaming issue just the other night:)

22

I would expect it to need a certain minimum amount of bed contact to keep stuck to the bed. I know that slicers will either have a cross hatch or a zigzag pattern for support material. I do not know if you have brim turned on. I do not know if your nozzle was zigzagging. I do not know if your first layer is actually extruding or if it is plugged in the hotend because you are too low. I do not know if you hve the hotend too high and getting no bed squish at all. There is alot that I do not know here. As the details are made more clear, I can better figure out he puzzle.

23

Nozzle is too high. In fact, the nozzle has to be so high that it would be visually obvious if this is happening.

24

Thx. I have addressed most of those questions, or they can be deduced from the OP pic and captions. Hopefully, I can revisit this thread and condense things. But for now, it’s almost beer-o’clock. So, till next time:)…

25

@ThantiK If nozzle is too high, then something is outta whack, 'cause I’ve successfully calibrated things many times before. Plus, as noted, I successively nudged down. Furthermore, some lines ripple, while others, right next to those, did not. Could be “too high”, but I’m still not convinced. You’re certainly more experienced than I, but several things still seem amiss - at least to me. I’m learning:)…

26

Well, feel free to add a picture of this still on the bed so we can see what it put on the zigzag. The more things I see, the more I can figure out. I could still improve my diagnosing skills.

27

What layer height are the bridging and infill? The same as the perimiter?

28

Thx, @NathanielStenzel . In fact, our prints stream live at http://www.tinyurl.com/Factur3DLive. The last two hours can be saved as a YouTube video (when it works). Plus, we do automatic time-lapse of all prints - again, when it works, which is not now on two machines due to an upgrade that broke that feature:(

I hope to get some pix, tomorrow (W03/29) once the print is done. I’ll carefully remove things and document as I go. We have a small photog “studio”, which is actual surprisingly good for how minimal it is.

29

https://m.youtube.com/watch?v=mSCa6oRI12A&layout=tablet&client=mv-google is where that link led me to.

30

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31

@NathanielStenzel . Yes, that’s the site: a YouTube livestream. As you can see, the print just finished, recently.

32

I just stopped the stream to save last two hours. YouTube indicates “processing”, but there has been a long-running bug (or whatever) that causes this to just hang forever on some feeds:( Anyhow, I just restarted the stream: now it shows all machines, plus an overview. Check it out, again…

33

Hmmm…the first layer height is 250% at half speed. So that is why it looks like a total lack of bed squish. No wonder. I see nothig about different layer heights else than that. I suppose the thick first layer is good for bed warps, bad delta calibration and such where you can not count on the nozzle keeping a consistent distance to the bed.

34

Yes, DeltaMaker recommends a 0.25mm first layer at half speed. Also, the DeltaMaker uses a “bed mapping” to adjust the nozzle position, as opposed to physically leveling the bed. These arrangements generally work well, and are not the source of the ripples.

35

And, I regularly sand the acrylic build plate to level it, plus rough it up a bit to aid adhesion.

36

the 2nd part of the video seems to be 3 still panes and 1 animated pane of some triangle junk. I do not see a point in it…unless it is to show the other printers.

37

At this time all shots are live, but nothing is printing. When not printing, promotional and other things are shown. The printer overview also allows monitoring of activity on the machines.

38

FYI, if you’d been tuned in early you’d have seen the print in full screen.

39

I am tired. I can look more tomorrow.

40

Thx. Yes, it’s tired and I’m getting late, too:D ~3:30am here in Orlando. Nitezzz…