Double extrusion, water-soluble support

Thoughts about Raise3D, 3D printing and making in general.
Pierre
Posts: 35
Joined: Sun Aug 07, 2016 8:19 am

Double extrusion, water-soluble support

Postby Pierre » Mon Sep 12, 2016 9:16 am

Hi There,

Did anyone succeed to print correctly with water soluble supports like PVA ?

If yes , would it be possible to share a working gcode so I could try it and see how it is when it works :)


Have a nice day
Pierre

User avatar
John@Raise3D
Posts: 483
Joined: Fri Feb 26, 2016 8:42 am

Re: Double extrusion, water-soluble support

Postby John@Raise3D » Tue Sep 13, 2016 3:38 am

We have tested PVA filament a lot. However, most examples are under NDA so that I can show them here.
Since you ask about it, we start a new one with non-confidential models. It seems all good.
water soluble support 4.jpg
water soluble support 2.jpg
water soluble support 3.jpg
water soluble support 1.jpg

A few tips.
1. Put PVA in left extruder
2. Generally around 200C nozzle temperature but you need to figure it out for the filament you use.
3. PVA does not adhere to buildtak or PLA very well. Use glue on glass side and set the model a bit closer to the support material.

User avatar
Billucas
Posts: 221
Joined: Fri Jun 17, 2016 12:42 am
Location: Quebec, Canada

Re: Double extrusion, water-soluble support

Postby Billucas » Tue Sep 13, 2016 4:21 pm

Here the manufacturer suggestion for PVA, if it can help you:
https://filaments.ca/collections/1-75mm ... =563074613

Dissolves into regular tap water. Simply depositing your part in water will allow the PVA to begin dissolving. Results can be agitated by using hot water and mixing.
•Some good results also noticed at 180°C with heated bed at 40°C.
•If the temperature on the heated bed is too high, it leaves the PVA flexible and will allow it to shift.
•Decomposes rapidly above 200°C
•When used as support material, increase the density of the PVA support.
•You'll need a printer that has two extruders to utilize PVA as a support material
•Sticks better to PLA than ABS when used as a support material.
•When used with ABS as a support material, you should keet the PVA support VERY close (0.1mm) to the ABS surface and use high support density for the PVA.
•PVA used as a raft will stick well to tape.
•PVA should be completely dry/dried for best results.
•Print at a low speed.
I bought it, but did not try yet. I will try soon and give you results.

Pierre
Posts: 35
Joined: Sun Aug 07, 2016 8:19 am

Re: Double extrusion, water-soluble support

Postby Pierre » Wed Sep 14, 2016 4:57 am

Thank you both for your answers.

I did some tests but none where good.

I'm trying to produce parts with supports inside the part, only removable if water-soluble, and for the moment, it doesn't work at all. The support is allways mixed with the material...

If someone has a working gcode for me, i'm buying :)

Pierre

NewbPilot
Posts: 278
Joined: Tue Jul 26, 2016 2:16 am
Location: West Palm Beach, FL
Contact:

Re: Double extrusion, water-soluble support

Postby NewbPilot » Wed Sep 14, 2016 2:28 pm

Billucas wrote:I bought it, but did not try yet. I will try soon and give you results.

Look forward to your tests.

Only reason we bought dual extruder was for PolySupport or PVA. We print mostly TPU, then PETG and a little PLA. I dont think I can use TPU or PETG with PVA ... so maybe PLA? :(

User avatar
Billucas
Posts: 221
Joined: Fri Jun 17, 2016 12:42 am
Location: Quebec, Canada

Re: Double extrusion, water-soluble support

Postby Billucas » Wed Sep 14, 2016 3:57 pm

Yes, Maybe PLA. I don't know if HIPS that you dissolve with Limonene can work for you?

User avatar
John@Raise3D
Posts: 483
Joined: Fri Feb 26, 2016 8:42 am

Re: Double extrusion, water-soluble support

Postby John@Raise3D » Wed Sep 14, 2016 4:17 pm

Pierre wrote:Thank you both for your answers.

I did some tests but none where good.

I'm trying to produce parts with supports inside the part, only removable if water-soluble, and for the moment, it doesn't work at all. The support is allways mixed with the material...

If someone has a working gcode for me, i'm buying :)

Pierre


If you can share the stl file, we should be able to better assist you.
Please email to support@raise3d.com with information on your brand of PVA.
Your file is confidential and we will not share with anyone but you.


Return to “General”

Who is online

Users browsing this forum: No registered users and 2 guests