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Kurt-Kirkeby

PVA support by Stacked parts

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Images:

PVA and stacked parts1: - my parts are stacked in an assembly, with space to place PVA or support material

PVA and stacked parts2: - perspective view of the parts

PVA and stacked parts3: - The problem with PVA support and stacked parts, it builds up an unnecessary, time and cost spending wall (6 hours extra for 8 parts)

PVA and stacked parts4: - The problem with PVA support and stacked parts, it builds up an unnecessary, time and cost spending wall 

PVA and stacked parts5: - The same G-code with 43 parts printet without PVA just one material for part and support

PVA and stacked parts5-1: detailed view of image5 I have market up the support with a yellow marker

PVA and stacked parts6-Extruder1:  Extruder1 selected

PVA and stacked parts6-Extruder2:  the only change is i have selected Extruder2

 

I have tried to set serval settings under support and I keep on getting these unnecessary walls, can anyone help me?

PVA and stacked parts1.JPG

PVA and stacked parts2.JPG

PVA and stacked parts3.JPG

PVA and stacked parts4.JPG

PVA and stacked parts5.JPG

PVA and stacked parts5-1.JPG

PVA and stacked parts6-Extruder1.JPG

PVA and stacked parts6-Extruder2.JPG

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The idea is good. In fact gonna use that idea to test bcn3d pva, on that printer making that should be easier. 

 

UM pva doesn’t stick perfectly and sometimes breaks in parts, that why um3 pva profile needs a big build from the bottom to work. The idea of stacking is really interesting, but that might also add the prime tower time, since you need an area for the pva core to purge after the wait until it’s used. Ofc, the advantage of leaving the printer unattended is a big one for lots of repetitive prints.

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I think if you want to do this (first question that comes to my mind is: is it worth the added time?)

 

The way i would choose is to design the part that will be printed in PVA like i would design a dual color model. And assign the BB core to print that part and disable the support generation.

 

So it would basically be some kind of big plate that would be printed in PVA to support the next stage... but really i'm not sure the effort and time it needs to print the pva part is really an improovment compared to printing just one stage?

 

Also regarding UM3 PVA profiles, for me they have always worked quite nicely, it's just a matter of keeping your Pva out of humidity (also the prime tower helps sometimes)

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9 hours ago, DidierKlein said:

I think if you want to do this (first question that comes to my mind is: is it worth the added time?)

 

The way i would choose is to design the part that will be printed in PVA like i would design a dual color model. And assign the BB core to print that part and disable the support generation.

 

So it would basically be some kind of big plate that would be printed in PVA to support the next stage... but really i'm not sure the effort and time it needs to print the pva part is really an improovment compared to printing just one stage?

 

Also regarding UM3 PVA profiles, for me they have always worked quite nicely, it's just a matter of keeping your Pva out of humidity (also the prime tower helps sometimes)

 

Indeed it will add unnecessary time, but also if you can pull it of cleanly you could leave the printer all weekend working and get a production of 3 days done faster, because you would only need to remove it once. Less human hours/price

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Thank you both for the hint's 

 

It's exactly what i am working on, removing man time, hit the number of parts per filament-coil, minimum man time by removing support, and let the Ultimaker run for a day or two, man time is expensive in Denmark.

 

God point with the PVA part, I am working on a test run :-)

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