RE: Feed for a 20W CO2 SLS?

From: Eifert, Dan (
Date: Tue Mar 21 2000 - 17:13:22 EET


I've been listening to this list for the past 10 months and FINALLY someone
has REALLY hit on a practical use for this technology! Custom chocolate

Robin, I don't know what level of education you're at but I am thrilled to
see students at ANY level diving into this type of technology and kudos to
your Dad for being so creative also. ;-)

Dan Eifert
Electronic Packaging
Lockheed Martin, Missiles and Fire Control - Orlando

> -----Original Message-----
> From: Robin Stoddart []
> Sent: Tuesday, March 21, 2000 7:56 AM
> To:
> Subject: Feed for a 20W CO2 SLS?
> Hia all,
> I'm doing a project on SLS, using a 20W CO2 laser. What king of feed rate
> should I use for various materials (a range would be nice)..
> I will be using an X-Y CNC table instead of scanners because the table is
> cheaper/easier to control. I have calculated that my table is capable of
> approx. 18"/min feed. I understand that could be WAY to slow, however, I
> can
> turn the power down using the input power and gas pressure.
> This is a very simple project, and I may only be able to draw a simple
> square (because of time). I'm just looking to demonstrate the technique,
> and
> perhaps play with it a bit, for my own enjoyment :)
> Anyway, what would be suggested? A web page would be cool too.
> Also, can anyone recommend any materials that would be cheap/plentiful for
> demonstrating SLS? My dad suggested chocolate powder, so I'm up for
> anything
> :)
> Thanks a ton,
> Robin Stoddart
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