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Author Topic: Cleaning Shapeways FUD  (Read 4851 times)

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Offline baschurch-mike

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Cleaning Shapeways FUD
« on: March 30, 2016, 02:25:27 PM »
Hi Folks,

A Baldwin-Westinghouse loco has arrived in FUD. There is some evidence of the support wax and it will need a little "grinding" to sort out the flat sides. The question is:-

How do I clean it before undercoating? :help:

Thanks in Advance,

Mike Beard
« Last Edit: March 30, 2016, 04:21:55 PM by baschurch-mike »

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Re: Cleaning Shapeways FUD
« Reply #1 on: March 30, 2016, 03:01:23 PM »
During printing, products are supported by a waxy material that is dissolved after printing is complete.

Wax is mostly removed with ultrasonic bathes. But the model remains waxy when shipped.

This wax must be removed before painting. The residual wax makes the plastic translucent.
Start with a first bath in warm water, brushing softly with a toothbrush.

Then alternate chemical liquids or sprays and warm bathes. Let the model dry between each cleaning cycle.

Chemical liquids successfully tested:
 medical isopropanol (IPA)
 stove cleaning spray
 stain remover for clothing
 acetone free nail polish remove

I use mostly isopropanol and stove cleaning spray.

Household detergents have mostly small effect on wax, but soap helps to rinse the model properly.

After a chemical cleaning  always rinse with water. Then use a low pressure compressed air source to blow out any blocked holes.
Once cleaned, the print looses its translucent aspect and becomes white. Some dried out wax remains as powder. The powder can be swept away with a soft brush and a needle. Compressed air can helps also.

Rinsing in water is always the last step before painting.

Offline Only Me

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Re: Cleaning Shapeways FUD
« Reply #2 on: March 30, 2016, 03:51:37 PM »
I use Swarfega ... Great degreaser ...



Offline baschurch-mike

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Re: Cleaning Shapeways FUD
« Reply #3 on: March 30, 2016, 04:17:26 PM »
Hi Guys,

 :thankyousign:

Mike Beard


Offline baschurch-mike

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Re: Cleaning Shapeways FUD
« Reply #4 on: April 01, 2016, 12:01:18 PM »
Bob,

You mention stove cleaning spray. Can you give us a brand name as there are all sorts of stoves and therefore many forms of spray!

Thanks in Advance,

Mike Beard

Offline Simon D.

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Re: Cleaning Shapeways FUD
« Reply #5 on: April 01, 2016, 01:00:05 PM »
This guy uses something called Bestine which the Americans all seem to use: https://jamestrainparts.wordpress.com/2014/12/15/cleaning-up-3d-printed-models/

Offline mk1gtstu

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Re: Cleaning Shapeways FUD
« Reply #6 on: April 01, 2016, 01:06:10 PM »
I use white spirit, leave the item in a jar of it for 24-48 hours, take it out & leave to dry & it should turn white.

cheers, Stu
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Offline jrb

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Re: Cleaning Shapeways FUD
« Reply #7 on: April 01, 2016, 01:07:37 PM »
I use Swarfega ... Great degreaser ...

Thanks for that - I used it on one of my prints on Wednesday. Worked great (or at least I think it did, none of the paint has fallen off yet!).

Offline baschurch-mike

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Re: Cleaning Shapeways FUD
« Reply #8 on: April 01, 2016, 01:48:36 PM »
Hi All,

The Americans do use a lot of Bestine but it is expensive and only available from one source in the UK. More importantly it makes aviation fuel look like water so you wouldn't want it around the house or garage. Hence the questions about other chemicals.

So far nobody has suggested using an ultrasonic cleaning bath in conjunction with IPA. Has anybody tried it? And is Surgical Spirit a good substitute for IPA or is it not pure enough?

Happy Times,

Mike Beard
« Last Edit: April 01, 2016, 01:49:53 PM by baschurch-mike »

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Re: Cleaning Shapeways FUD
« Reply #9 on: April 01, 2016, 02:41:25 PM »
Bob,

You mention stove cleaning spray. Can you give us a brand name as there are all sorts of stoves and therefore many forms of spray!

Thanks in Advance,

Mike Beard

Afraid my notes are a combination of various different sources, so I do not have all the specifics.

Offline robert shrives

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Re: Cleaning Shapeways FUD
« Reply #10 on: April 03, 2016, 08:26:05 PM »
Hi
fairy power spray has been mentioned on RM Web before now but I have no personal experience so over to you !!

Just used CIF and a toothbrush on my 180 body as part one of cleaning - will get a white spirit tonight and a futher CIF and rinse.
cheers
Robert

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Re: Cleaning Shapeways FUD
« Reply #11 on: April 04, 2016, 12:06:21 PM »
IPA in an ultrasonic cleaner here , then a quick brush with a cheap battery powered toothbrush and rinse with distilled water.  No problems yet but be careful with the brush on small bits that stick up on the model.
Modelling stupid small scale using T gauge track and IDl induction track. Still have  N gauge but not the space( Japanese Trams) Excuse spelling errors please, posting on mobile phone

Offline baschurch-mike

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Re: Cleaning Shapeways FUD
« Reply #12 on: April 04, 2016, 12:15:32 PM »
Hi Folks,

India Pale Ale in an Ultrasonic cleaner, whatever next?

Seriously I've spent a while just cleaning up the body and smoothing it using Albion Alloys cleaning sticks, then going round places with various dental probes. Next is a wash in warm water and a "cream" cleaner as there seems to almost a light oil on some bits and then a rinse and then a while - how long? - in surgical spirit.

Does this sound right? Incidentally Sainsburys sell two soft toothbrushes for 25p and they should be amirable for the job of gently cleaning.

Mike Beard

Offline baschurch-mike

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Re: Cleaning Shapeways FUD
« Reply #13 on: April 08, 2016, 06:49:33 PM »
OK, so I've cleaned the body now.

I read that perhaps it's a good idea to give it a coat of "Mr Surfacer" either 500 or 1000. Has anybody out there done this? What was the result?Or is it better to just go to Halfords Fine Grey Undercoat?

Opinions, experience please,

Thanks in Advance,

Mike Beard.

Offline Snowwolflair

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Re: Cleaning Shapeways FUD
« Reply #14 on: May 14, 2016, 07:52:52 PM »
Just used BESTINE in an ultrasonic tank.  Wax stripped in 4 minutes, and snow white FUD as soon as it dries. :laugh3: :bounce:

I'm a convert, now where to get it in the UK?

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