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BasHamer

2 material printing problem, nozzle dragging trough the print

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Posted · 2 material printing problem, nozzle dragging trough the print

re-post, it was in the wrong topic

So here is the desired

WP_20161217_08_01_55_Rich.thumb.jpg.b3267f7d4eb82e24e6a61f08b861dd83.jpg[/media-thumb]

the settings

settings.thumb.png.26a2e870d12bde1b7442c6042344ab53.png

outcome (before abort)

WP_20161218_09_17_29_Rich.thumb.jpg.8c3f35253045ca302104e1e08fb64fc0.jpg

WP_20161218_09_16_28_Rich.thumb.jpg.2deef7876e3930c199d68358dbeeb797.jpg

WP_20161218_09_20_49_Rich.thumb.jpg.e26b780ef5696a2ba934f7e2de9a099c.jpg

WP_20161218_09_16_49_Rich.thumb.jpg.bca1735d13e2cd109cd633b8937958dd.jpg

When I started hearing weird noises and saw the plate screws flex, I had a good idea that this thing went south. the print is as you see it now. The printer head was around F during the flexing.

The outside rim looks great; the second material line is also perfect.

Non the less it gouged trough this material @B (slightly) and @C (with a  vengeance)

it gouged again @D

There is a lot wrong with my print, and I realize that lettering the way I did it might not be all that good an idea, but that doesn't explain why the head decided to bury itself in the bed on multiple occasions.  

Are there some settings I need to adjust to get the head to lift off from the plate?

anyone have any suggestions on what to improve to make 2 materials work for me?

some other notes:

E has grooves

A has small scrap on top of the material

Both initial print blobs that it put onto the plate were removed; and did not get dragged into the print.

F looks like part of the print got loose and migrated, this does not explain the gouging at B, C & D

only around F did I have some loose material

C looks like it is a drag in and a drag out side by side. I think that it is something that happens as part of the nozzle change, as all drags are in that direction. I'll re-try it tomorrow in a reverse orientation to see if the same drags show up.

WP_20161217_08_01_55_Rich.thumb.jpg.b3267f7d4eb82e24e6a61f08b861dd83.jpg

settings.thumb.png.26a2e870d12bde1b7442c6042344ab53.png

WP_20161218_09_17_29_Rich.thumb.jpg.8c3f35253045ca302104e1e08fb64fc0.jpg

WP_20161218_09_16_28_Rich.thumb.jpg.2deef7876e3930c199d68358dbeeb797.jpg

WP_20161218_09_20_49_Rich.thumb.jpg.e26b780ef5696a2ba934f7e2de9a099c.jpg

WP_20161218_09_16_49_Rich.thumb.jpg.bca1735d13e2cd109cd633b8937958dd.jpg

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Posted · 2 material printing problem, nozzle dragging trough the print

other info, it calibrated before the run (it is set to daily)

And it started a new print (1 material print and a 2nd material for support; same materials that so far is looking flawless. But this one had only one material change.

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Posted · 2 material printing problem, nozzle dragging trough the print

Have you checked the layer view in Cura? What you show looks really weird to me

 

I'll do that, I'm also going to see what the spacing between D & F is because maybe the head just didn't retract. That could also explain C; the right head was black, left was orange.

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Posted · 2 material printing problem, nozzle dragging trough the print

cura looked good, it looks like the black printer head was never retracted when it was printing in orange. the length of D is ~18.8mm, and the part where D goes towards the top is 18.8 mm from the orange running by the side. This also explains C as it plowed in and out trough the support structure in the extension of the orange part.

I'll re-try printing something more involved in 2 materials tomorrow.

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Posted · 2 material printing problem, nozzle dragging trough the print

 

yeah head swaps don't seem to succeed all that well :(

WP_20161224_12_33_00_Rich.thumb.jpg.9cc4afbf5aebc98081164ea3ef15a927.jpg

WP_20161224_12_33_06_Rich.thumb.jpg.a7e7c99005f7a4e2bb7dd59d26ba0a8e.jpg

the goal was pain orange, but the black head did not retract right (exact same issue as before. black is the right head.

I'll contact fbrc8

WP_20161224_12_33_00_Rich.thumb.jpg.9cc4afbf5aebc98081164ea3ef15a927.jpg

WP_20161224_12_33_06_Rich.thumb.jpg.a7e7c99005f7a4e2bb7dd59d26ba0a8e.jpg

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Posted · 2 material printing problem, nozzle dragging trough the print

If the right nozzle is not lifted when the left nozzle is printing, you may need to recalibrate the switching bay location.

Head to system->maintenance->diagnosis and run the switching test. Look whether or not the nozzle is lifting.

If not, you can calibrate the switching bay location in system->maintenance->calibration. During this procedure, the printer asks you to move the print head such that the lever on the right side of the printhead is in the switching bay, on the right side of your printer. After that, the printer switches the right nozzle up and down, for verification.

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