Have SLA problem

From: Dave Burbrink (daveburbrink@fuse.net)
Date: Mon Nov 18 2002 - 17:30:50 EET

We have a 2 year old 250 running 10110 resin. 5500 hours on the laser. Currently running at 20mw. Out of the blue, we're getting bad parts. No warnings -- from good parts to bad. Here's how I describe it: As you're facing the machine, the left and rear of the parts are very rough. The right and front sides are acceptable. When I build a round post in a vertical fashion, the 9 o'clock and 12 o'clock quadrants are rough. It is as if the hatch fill is over shooting the border on the left and rear sides only. FYI -- Throughout the life of the machine, we have noticed a beep and a message that says "Profiler #2 is blocked". (Our past maintenance guy has looked at but never replaced it. We have a new contract with a new service.) But on recent builds, this might happen 2-3 times in a row. The profiler appears clean upon close examination. Any ideas on a solution?
Thanks in advance.

Dave B

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