From: Blasch, Larry (LBlasch@OPW-FC.com)
Date: Fri Jul 19 2002 - 23:47:50 EEST
All,
To be considered a true feature, the geometry must be dimensionally correct
to the STL data.
I won't get into the accuracy of the STL data...
The X,Y, and Z machine capabilities must be considered to be the same since
the orientation of the part is subjective.
Larry
Lawrence R. Blasch
Design Engineer
CAE Systems Administrator
OPW Fueling Components
P.O. Box 405003
Cincinnati, OH 45240-5003 USA
Voice: (513) 870-3356
Fax: (513) 870-3338
In the software industry, a "feature" is a bug discovered by the program
development team...
Just a little Friday humor.
-----Original Message-----
From: Steven Adler ( A3DM ) [mailto:adler@a3dm.com]
Sent: Friday, July 19, 2002 2:15 PM
To: Mike Feygin; 'Paul-Henri Tinguely'; 'Candi Majewski'
Cc: rp-ml@rapid.lpt.fi
Subject: Re: Minimum feature sizes on RP parts
Curious ....
How does one define "a feature"...?
How does one define a acceptable level of quality to define that smallest
feature....?
How many layers of what thickness.....?
I am currently building a project where the client requested 0.001 ... I
suggested a sample at 0.002 and was happier with my part even though it was
sliced at twice the Z thickness or half the number of layers.... It isn't
all about slice thickness or jet/beam size
I think this is a trick question but, an interesting thread
Steven Adler, CEO
Automated 3D Modeling, Inc
www.a3dm.com
adler@a3dm.com
603.433.4369
----- Original Message -----
From: "Mike Feygin" <mfeygin@cubictechnologies.com>
To: "'Paul-Henri Tinguely'" <ph.tinguely@altair-consulting.com>; "'Candi
Majewski'" <candimajewski@hotmail.com>
Cc: <rp-ml@rapid.lpt.fi>
Sent: Friday, July 19, 2002 5:17 AM
Subject: RE: Minimum feature sizes on RP parts
> Hello Candi,
>
> You should be able to produce .2mm features with LOM. After all the laser
> beam spot size is usually within .13-.15mm. The XY positioning system's
> resolution is a lot better than that. You probably need to define what
you
> mean by a feature. Would it be a radius of a minimum circle, a radius at
a
> corner, a minimal wall thickness?
>
> Best regards,
>
> Michael Feygin
>
> -----Original Message-----
> From: owner-rp-ml@rapid.lpt.fi [mailto:owner-rp-ml@rapid.lpt.fi]On Behalf
Of
> Paul-Henri Tinguely
> Sent: Friday, July 19, 2002 5:19 PM
> To: Candi Majewski
> Cc: rp-ml@rapid.lpt.fi
> Subject: Re: Minimum feature sizes on RP parts
>
> Hello Candi,
>
> On the list you mentionned wax jet printing with 0.2 mm,
> you need to say 0.013 mm with the Pattern Master from Solidscape
>
> With my best regards
> Paul-henri Tinguely
>
> Altair Consulting
> http://www.altair-consulting.com
>
> Candi Majewski wrote:
>
> > Dear list,
> >
> > I am trying to put together an information sheet detailing current RP
> > processes. One thing I am interested in is the minimum feature size
> > which can be successfully produced using each process.
> >
> > Below is a list of the processes I am looking at, along with the feature
> > sizes I have down at the moment.
> >
> > I am interested in any comments anyone may have - are these numbers
> > reasonable, have you successfully produced smaller features than these,
> > or are these sizes unrealistic?
> >
> > Stereolithography - 0.1mm
> > Fused Deposition Modelling - 0.2mm
> > Direct Metal Laser Sintering (EOS) - 0.2mm
> > Laser Sintering (3D Systems) Metal - 0.2mm
> > Laser Sintering (3D Systems) Plastic- 0.2mm
> > Laser Sintering (3D Systems) Sand - 0.5mm
> > Wax Jet Printing - 0.2mm
> > 3-D Printing (Soligen) - 0.5mm
> > 3-D Printing (Pro-metal) - 0.2mm
> > 3-D Printing (Z-Corp) - 0.5mm
> > Laminated Object Manufacturer - 0.5mm
> > Ink Jet Printing (Objet) - 0.05mm
> >
> > Any comments would be appreciated!
> >
> > Have a great weekend,
> >
> > Candice
> >
> > Candice Majewski
> > Rapid Manufacturing Group,
> > Loughborough University,
> > Loughborough,
> > UK LE11 3TU
> > Tel: +44 (0) 1509 227564
> > Fax: +44 (0) 1509 227549
> >
> > _________________________________________________________________
> > Chat with friends online, try MSN Messenger: http://messenger.msn.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/
>
>
> For more information about the rp-ml, see http://rapid.lpt.fi/rp-ml/
>
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