Re: SLS glass duraform

From: Vern Carter (
Date: Thu Apr 22 1999 - 20:57:09 EEST


We just received a shipment of DuraformGF and it appears to be fine to the touch. We
plan to mix it with some older powder and run it over the weekend. We have had
repeatable success with GF but every time we run regular Duraform we have to drop the
part bead temp. We started running the material at 190c and we are now down to 170c
after 4 different melt downs. We do keep our IR sensor very clean but I still think
the sensor is the problem. Others here feel like it could be bean offset. Do you have
any ideas?

Vern Carter, CTS
-----Original Message-----
From: Drew Brown <>
To: RPML <>
Date: Sunday, April 18, 1999 10:10 AM
Subject: SLS glass duraform

>Has anyone been having problems with the SLS glass duraform recently?
>This is related to both newly received material and part processing.
>We've noticed some of the new containers have material that feels
>almost wet (we can ball it up like a snow ball). Is this common with
>others running it? Also how have you found the processing of this
>material recently? Has it changed from when you first started running
>it? Over the last month we have discovered some puzzling problems that
>have not been experienced before with any of the other materials
>I've recently heard that new glass duraform material is not currently
>available from DTM and wonder if there are problems with the material
>and the supplier of the material.
>Thanks in advance.
>Drew Brown
>Conceptual Reality L.L.C.
>For more information about the rp-ml, see

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