RE: Stratasys - SPT - Slow Prototyping

From: Travis Behara (
Date: Mon Nov 18 2002 - 18:44:07 EET

We are a former SLS machine owner (2000) and have moved to an FDM machine
(Prodigy Plus). I have had nothing but good comments from the engineers I
created parts for since we changed technologies. They like the part quality
and speed in which I can get them the parts.
The speed in getting parts to them is due to the ease in setting up the
machine to run as compared to setting up the SLS machine. It is no longer
cost prohibitive to run the machine for one part and get it to them ASAP.
Yes there is some stair stepping issues, however for our applications this
is not a real issue and, if necessary, can be taken care of with a little
post finishing.
Not only can I produce parts quicker I do it at a considerable cost savings
as compared to the SLS machine.
I understand that the FDM technology wouldn't work for everyone's app.
however for us it has been great.

Travis E. Behara
Rapid Prototyping Engineer
TriMark Corp
New Hampton, IA

-----Original Message-----
From: Kiran Shastry []
Sent: Monday, November 18, 2002 9:43 AM
To: JB Ventures BV
Subject: Re: Stratasys - SPT - Slow Prototyping

Dear Sir,

This is not Monday morning feelings.

You said it, you slow machine has to run continously.
But this is surprising SLS customers happy with FDM
parts ?

Can somebody tell me any contribution from FDM in last
2 years in increasing accuracy/finish etc ? In
discrete terms.

 --- JB Ventures BV <> wrote: > Your
message is clear Kiran.
> We run a FDM Titan (PolyCarbonate) machine for
> service in Europe and is running almost
> continiously. With your opinion in mind, guess the
> former SLS customers for wich we are building parts
> for the last half year must be all complete fools!
> Should your reply be taken seriously of has it
> somewhat to do with your monday-mornin-feelings?
> Regards,
> ----- Original Message -----
> From: Kiran Shastry
> To:
> Sent: Saturday, November 16, 2002 7:01 PM
> Subject: Stratasys - SPT - Slow Prototyping
> List,
> Saw a lot of mails on FDM & slowness etc.
> I do not know how long this Glue making like
> technology will survive. I hope till the the time
> they
> find new customers everytime ?
> If real comparison with SLA/SLS with FDM wanted,
> then
> ask users of both the techology. For only FDM
> users,
> it is definitely great machine.
> For me Stratasys is just imitating 3D Systems, all
> their news article, etc. This is the company which
> talks about % all the time, everything put in %,
> looks
> good. FDM Quantum is 50 % faster, Maxum is 50 %
> faster
> than Quantum, etc. Just recently they talked abot
> high
> resolution wire or so, without mentioning any
> dimensions.
> Kiran Shastry
> Singapore
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