Best way to dissolve support materials?

Materials, Materials, Materials!
User avatar
Tom
Posts: 14
Joined: Sun May 21, 2017 10:12 pm

Best way to dissolve support materials?

Post by Tom » Sun May 28, 2017 3:20 pm

When printing dual-extrusion with PLA + a dissolvable support like PVA/BVOH, Scaffold etc, I've always been disappointed by how long it took to dissolve all the support structures. What I've tried:
  • Simple water bucket, warm and cold
  • Bucket with a pump
  • Manually washing and peeling off the supports
  • Ultrasonic bath [edited]
What I still want to try:
  • Dissolving in the dishwasher
Any other tips to get rid of dissolvable supports quickly?

-Tom
Last edited by Tom on Sun May 28, 2017 4:16 pm, edited 1 time in total.

User avatar
PartTimeRonin
Posts: 85
Joined: Mon May 22, 2017 2:33 pm

Re: Best way to dissolve support materials?

Post by PartTimeRonin » Sun May 28, 2017 3:59 pm

How about ultrasonic bath?
Didn't try it myself but some video show it does.

User avatar
Tom
Posts: 14
Joined: Sun May 21, 2017 10:12 pm

Re: Best way to dissolve support materials?

Post by Tom » Sun May 28, 2017 4:15 pm

Oh, right, I have tried that! Though it was actually slower than using the pump-in-bucket, even with warm water.

User avatar
PartTimeRonin
Posts: 85
Joined: Mon May 22, 2017 2:33 pm

Re: Best way to dissolve support materials?

Post by PartTimeRonin » Sun May 28, 2017 5:19 pm

Tom wrote:
Sun May 28, 2017 4:15 pm
Oh, right, I have tried that! Though it was actually slower than using the pump-in-bucket, even with warm water.
So it didn't work then - -'

PS : I looking for "Like" button for awhile before realize that this is forum LOL

3d printing meathead
Posts: 9
Joined: Sat May 27, 2017 5:49 pm

Re: Best way to dissolve support materials?

Post by 3d printing meathead » Sun May 28, 2017 5:58 pm

I think this would be a good time to see if everyday cleaning supplies can cut through the supports faster. Glass cleaner, IPA, dish soap, diluted acetone (for non abs parts???) vinegar, etc. Maybe there's a miracle cleaner under your sink right now.

User avatar
Tom
Posts: 14
Joined: Sun May 21, 2017 10:12 pm

Re: Best way to dissolve support materials?

Post by Tom » Mon May 29, 2017 11:25 am

Looking for "Like" button
Trust me, I've been looking for that, too.

Supposedly sulfuric acid or sodium hydroxide will attack PVA, but I'm not sure that the PLA will still be be there when the PVA is gone... :twisted:
Last edited by Tom on Wed Jun 14, 2017 2:45 pm, edited 1 time in total.

3d printing meathead
Posts: 9
Joined: Sat May 27, 2017 5:49 pm

Re: Best way to dissolve support materials?

Post by 3d printing meathead » Mon May 29, 2017 4:49 pm

Tom wrote:
Mon May 29, 2017 11:25 am
ooking for "Like" button
[/quote]

Trust me, I've been looking for that, too.

Supposedly sulfuric acid or sodium hydroxide will attack PVA, but I'm not sure that the PLA will still be be there when the PVA is gone... :twisted:
[/quote]

Well, we already know water attacks PVA, just not fast enough. We could help the water hydrate the PVA by reducing surface tension with a surfactant.
Also, an ultrasonic cleaner might accelerate the process.

Ariel
Posts: 9
Joined: Thu Jun 15, 2017 2:16 am

Re: Best way to dissolve support materials?

Post by Ariel » Thu Jun 15, 2017 2:39 am

Here's a something surprizing: electric toothbrushes! Like a sonic bath but you controll where it goes
Your friendly neighbourhood girl
Proud owner of a bigbox dual(working on a diamond hotend for her) named Brigid
I talk in purple and bold!

robteifi
Posts: 1
Joined: Thu Jun 15, 2017 10:41 am

Re: Best way to dissolve support materials?

Post by robteifi » Thu Jun 15, 2017 10:46 pm

Along the same lines as the toothbrush, how about a water pick? Just a thought :)

oakdesign
Posts: 109
Joined: Thu Jun 15, 2017 10:21 am

Re: Best way to dissolve support materials?

Post by oakdesign » Fri Jun 16, 2017 1:28 am

I own a Ultrasonic bath, but as a newbie no desolvable material so far (no need as no dual extruder so far) :roll: . Will look around if I can get a hand on a test piece of PVA filament.
What would be a usefull amount to disolve in order to get you an idea if and how ultrasonic works compared to other methods.

Regards Richard
Opa's bester Rat: Probieren geht über Studieren, Grandpas best advice: the proof of the pudding is in the eating

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest