ABS printing problem with support material

[Larof 1]

Hy!

I want to print the 3D part which can be found in the attachment.
The component is designed for outdoor use therefore PLA cannot be used. Our experience is that the part exposed to solar radiation is deformed.
For the printing I use original ultimaker abs filament and RS PRO PVA HT+ which is based on the manufacturer's description excellent adherence to ABS.

My poblem is the ABS dont adherence to special PVA material.
Print settings
ABS: 245°C nozzle
PVA HT+: 225 °C nozzle

Bed: 100 °C

cooling is always off

To the bed I use UHU glue and its smoothed with wet paper.

 

Can anyone help me with what the problem might be?

 

Thanks!

Benji

 

lightmeter_felso_v4.2.stl rs_pro_pva_ht.pdf

[dxp 23]

Hello and welcome to this forum, Benji!

 

You want to support those square areas in the second pic? You may want to experiment with Support-Z-Distance and Support Roof. Try to minimize (even zero) the z-gap between until ABS sticks to PVA. A roof is better for adhesion and surface.

 

 

It is a good practice to find the right parameters with a small part... 🙂

 

Cheers,

dxp

[Larof 1]

Hy!

Thanks for the answer, I try your settings asap and post my experience.

I do not insist to the ABS material, I want an material which it does not deform from the sunlight.
Can you recommend recommend a material that is just as easy to print as PLA?

 

Thanks

Benji

[Enigma_M4 120]

Hi Benji,

 

I made good experience with Ultimaker CPE.

According to heat resistance, it's between PLA and ABS, and the digital sundial, I made about three years ago (and which is outside all year (southern Germany)) shows no signs of deformation.

And: ABS is prone to age by UV-radiation, CPE is almost UV-resistant.

 

Usage with PVA: with ABS, it may work or it won't (I think that's why this combination is rated "experimental" by Ultimaker). Breakaway would be the better support material for ABS.

CPE and PVA cooperate like a charm.

 

Regards

[dxp 23]

On 6/20/2020 at 2:08 PM, Enigma_M4 said:

CPE and PVA cooperate like a charm.

CPE/XT/PET-G and PLA as support work, too!

@Larof: If it needs to be ABS, try ASA, which seems to be UV-resistant. But your inital question was about support for ABS...

[Larof 1]

On 6/19/2020 at 3:51 PM, dxp said:

Hello and welcome to this forum, Benji!

 

You want to support those square areas in the second pic? You may want to experiment with Support-Z-Distance and Support Roof. Try to minimize (even zero) the z-gap between until ABS sticks to PVA. A roof is better for adhesion and surface.

 

 

It is a good practice to find the right parameters with a small part... 🙂

 

Cheers,

dxp

With this settings finally the part was printed successfully (ABS and PVA HT+ combination).
Thanks for the support!

Benji

[dxp 23]

17 hours ago, Larof said:

Thanks for the support!

You are welcome! 😃