RE: [rp-ml] ProJet 3000 input?

John

Firstly don't believe the marketing bullshit and flashy Envisiontec
videos saying how their systems build pixel by pixel rather than layer
by layer thus eliminating build lines. We run a Perfactory here and the
build lines are less noticeable than some of the other technologies we
use but they are still there. You can build using either 25 micron
layers or 50 so building with the thinner 25 micron layers will help.

You say that you're looking at getting 'another' high res machine from
which I draw the assumption that you already have one. John Makes a good
point about the skill level required with a perfactory so it will make a
difference is this is the system that you are currently using as you
will already have this expertise. Failing that it does take quite a
while and lots of wasted builds before you finally manage to 'tame' the
system.

Depending on the resolution you're looking for, Objet could be an option
but despite even thinner layers (16 microns) the build lines are if
anything more visible than the EnvisionTec's this is because the layers
may be thin which looks impressive on the specification but the
alignment between layers is not sufficiently controlled meaning that
side walls end up as rough and uneven as my mother in-law's chin.

Good luck.

Jez.

From: owner-rp-ml@rapid.lpt.fi [mailto:owner-rp-ml@rapid.lpt.fi] On
Behalf Of Lino P. Stavole
Sent: 04 April 2012 23:37
To: 'Mullen, John'; john@moddler.com; rp-ml@rapid.lpt.fi
Subject: RE: [rp-ml] ProJet 3000 input?

Well, if anyone has the skills John does. It was my understanding that
perfactory was working on algorithms to "blur" the buildlines or bridge
them so to speak. I remember reading somewhere that the buildlines were
still there but less obvious. I do not know if the changes were just
tests, implemented or what.

I was able to play around with a projet and remember that parts were
nice but there was still noticeable buildlines based on orientation.

Just my 2cents

From: owner-rp-ml@rapid.lpt.fi [mailto:owner-rp-ml@rapid.lpt.fi] On
Behalf Of Mullen, John
Sent: Wednesday, April 04, 2012 1:10 PM
To: john@moddler.com; rp-ml@rapid.lpt.fi
Subject: RE: [rp-ml] ProJet 3000 input?

I'd offer your customers what they want, the resolution/surface finish
of the Perfactory Multi Mini with ERM surpasses all other technologies.
A possible downside is you will need a higher level of skill to do it
properly.

From: owner-rp-ml@rapid.lpt.fi [mailto:owner-rp-ml@rapid.lpt.fi] On
Behalf Of John Vegher
Sent: Wednesday, April 04, 2012 1:39 PM
To: rp-ml@rapid.lpt.fi
Subject: [rp-ml] ProJet 3000 input?

Hello,

We're looking at adding another high resolution machine here at Moddler.
We've been looking at both ProJet and Perfactory printers to better
service our customers who create small models with copious amounts of
detail and want output free of build lines. Most of our customers
prefer Perfactory output due to the high resolution and superior surface
quality.

But I wonder if our customers prefer Perfactoy output because there are
more Perfactory bureaus than ProJet bureaus. It's a chicken/egg
question: do service bureaus not use ProJets because there is no demand
or is there no demand because service bureaus don't offer ProJet parts?
Are companies gunshy about buying the successor to the Invision
printers? Or are there other reasons?

I would be very grateful for any input you have. And I'm happy to
receive your comments directly.

Regards,

John Vegher

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