Sugesstions on stronger supports

#1

3 Days using Formware. Very impressed.
Supports are sticking to build plate, needed to slightly enlarge them.
Experimenting with a cowgirl truck driver, from T’verse.
Printing with bum close to build plae, laying on her back.
I’ve tried different combinations of support contacts, but the model pulls off the supports and sticks to the FEP. FEP is in excellant condition.
Tried numerous settings, to the point of pulling out what hair I have left.
What settings can anyone suggest, to try first, please.
Also how can I force auto generated supports to only go to the build plate and not the model?

I’ve used chitubox for a year, most similar prints have stuck to the build plate, over 95%.

Dave

#2

Hi Dave,

So the supports stay on the fep you mean? Where does it split, near the model?

Have you tried modyfing contact depth, beam width at the support point and tip size? They are 3 different settings.
Additionally you might want to check first/top beam length, this is the length of the first piece.
And there is the multiplier for the first joint; you could also increase that to make it stronger there. (assuming it breaks near your model).

btw, you can import chitubox machine settings as well; you woudl need to double check them but there is an automated import in the ‘machines’ page in the config. So you can import .xml or .config (i think it’s called that)

kind regards
Elco

#3

Hi Elco,
Pic of the last failure,

IMG_20231009_140427_619
IMG_20231009_140427_619.jpg4032x3024 4.62 MB

Profile used ( in desperation)
Density 117
tip 1.500
support 5.128
pole 1.5
height 2
angle 30

creases and surface
randon
split scaffold
pole 2.000
above base 3.000
internal supports
internal feet 3
add no internal 10.000

Will look into transfer settings.

Thank You
Dave

#4

Hi Dave,

Are you printing a solid model? How large is the cross section in comparison to the supports?

It would be worth maybe trying more supports then if you insist on printing solid volumes…

And have you checked the speed with which the peel is done?
(ideally you would have a machine with force feedback; but for lower end machines this of course doesn’t work; so low peel speeds sort of try to prevent print failures in this regard… )

Elco

#5

Seems to be the support points where it breaks… looking at the image.
So to me it seems the force is just getting to big.
Either add more supports, or make bigger first beams.
See image below for the settings that apply there…

image
image.png1455x891 133 KB

#6

That’s a great explanation, thank you.

I imported the chitubox settings, first run printed fine.

Bigger models do get the hollow treatment.

Thanks again,
Dave