I run 2000's but I always assumed it was the powder because freshening the powder usually fixed the problem. However, recently I ran a build where the rough surface appeared on one part but not the other identical part next to it. Consequently, I'm inclined to believe it's also a function of temperatures and location in the build, perhaps even roller or scraper condition.
Disclaimer: Engineer and out the other!
Quick is not good if you're going the wrong way.
Michael W Miller (michael.w.miller@boeing.com)
The Boeing Company M/C 17-PE B-2T65
Propulsion Experimental Hardware 206-655-3289
Rapid Prototyping 655-4366 Lab 655-4365
> ----------
> From: Krassimir Dotchev[SMTP:Dotchev@Cardiff.ac.uk]
> Sent: Wednesday, November 22, 2000 10:19 AM
> To: rpml (E-mail)
> Subject: SLS Sinterstation 2500plus - DuraForm
>
>
> Dear List,
>
> DuraForm on DTM 2500plus - "orange peel" ?
>
> Many times when we were running DuraForm on our DTM Sinterstation 2500plus
> machine I experienced "orange peel" on some areas of vertical walls of the
> parts. It looks like orange peel but I think that this effect can be named
> differently. It appears on outside surfaces only and not on all vertical
> walls. I was told that the reason for that could be old powder or not
> correct temperatures for the left/right feed cartridges. I tryed with new
> powder and different temperatures but I didn't succeed to overcome this
> unpleasant phenomena. I've got long experience with 2000 and 2500 but I've
> never seen this before. One my explanation is that the reason for that
> could be the new roller mechanism which differs from those on 2000 and
> 2500 machines.
>
> Has anyone experienced the above problem when running DuraForm on DTM
> Sinterstation 2500plus machine? Have you got any explanation and
> corrective measures?
>
> Best regards,
>
> Krassimir
>
>
> ****************************************
> Dr.Krassimir Dotchev
> Manufacturing Engineering Centre
> Systems Division, School of Engineering,
> Cardiff University
> PO Box 688, Newport Road
> Cardiff CF24 3TE
> United Kingdom
>
> Tel: +44 (0)2920 874641, +44 (0)2920 875918
> or +44 (0)2920 876268
>
> Fax: +44 (0)2920 874880
> or +44 (0)2920 874003
>
> E-mail: DOTCHEV@cf.ac.uk
>
> www.mec.cf.ac.uk
>
> ****************************************
>
>
>
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
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