Thought I would share the following issue experienced laser engraving. Have an A350 system with a 10-watt laser and enclosure. Added an inline 4" fan and speed controller to the existing 3" ducting to enhance the exhausting of fumes during the Laser and 3D Printing processing.
While laser engraving, started to see what appeared to be smearing between the features being engraved. It turned out to be an effect from too much air movement from the 4" in-line fan. Reducing the power to the fan eliminated the issue.
1 Like
Are you sure that it’s not some kind of vibration caused by the fan? Reducing the power to the fan would reduce any vibrations as well. There could be a resonance at certain fan speeds at play as well.
Thanks for the reply. Resonance seems like a plausible factor causing vibrations affecting the Laser module. Didn’t have a reason why reducing the fan speed fixed the issue. Although there was an audible whine at certain RPMs.
The issue appears to be the laser continues to fire moving between features. (see attached)
One thing for sure. The laser must switch off during positioning moves. But that’s a different issue, most likely a software one.
Update Firmware & Luban - this is a known issue.
1 Like