From: Carl Dekker (dekker@met-l-flo.com)
Date: Tue Mar 26 2002 - 00:28:43 EET
Bob,
Try MEK or Acetone. We rubbed over the surface with a durably papertowel
soaked in Acetone and found it to work nicely. That is, as long as the
papertowel was wet. I don't know if you can use that in your facility but
if you do, do it under good ventilation.
Note: I have heard that the properties of the FDM is about 75% of
production ABS, where machined is 85%.
Hope it helps.
Carl Dekker
----- Original Message -----
From: <Robert.S.Gansen@jci.com>
To: <rp-ml@rapid.lpt.fi>
Sent: Monday, March 25, 2002 10:28 AM
Subject: Finishwork on FDM Parts
> Dear List:
>
> Every now and then our modelshop has a request for FDM parts. The ABS used
> on these parts is extremely difficult to sand when compared to the ABS we
> use to CNC cut or vac form, making it difficult to sand out the layer
lines
> and finishing. We have tried ideas such as dipping the parts in Resin Bond
> or similar solvent; brushing the same solvents on; sanding with 60 grit
or
> coarser sand paper or using a primer/filler to finish these FDM parts. All
> these processes have been with mixed results. Because of this the
> modelbuilders usually choose CNC cutting our ABS parts unless the
geometry
> simply won't allow it. And they make our CNC programmers jump through some
> mighty hoops to try CNC cutting before resorting to FDM parts. I have 2
> questions in regards to this.
>
> 1: What are some other methods you use for finishing these FDM parts.
>
> 2: What are the chances of Stratasys coming out with a blend of ABS that
is
> "softer" and easier to sand and finish.
>
>
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> Robert S. Gansen
> Johnson Controls Inc.
> Automotive Systems Group
> 915 E32nd Street
> Holland, MI 49423
> Tel: (616)394-8095
> Fax: (616)394-1166
> Pager: (616)670-8095
> robert.s.gansen@jci.com
>
>
>
> For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/
>
For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/
This archive was generated by hypermail 2.1.4 : Tue Jan 21 2003 - 20:13:39 EET