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Non-uniform engraving
Posted: Wed Nov 06, 2019
by Evan Winn
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Trying to get a clean consistent engraving but it seems to have patches where the acrylic burns different. Any tips on this?
150w tube 4oomm/s .05 interval at 25% power.
Thanks
Re: Non-uniform engraving
Posted: Thu Nov 07, 2019
by Gene Uselman
Not familiar with 4" lens but on my 2" I would increase the focus so it melts/flows more.
Re: Non-uniform engraving
Posted: Thu Nov 07, 2019
by Pete Cyr
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I see bands where the engraving is not uniform.
With the power to the laser off....move the gantry in x full travel looking for binding and do the same for y (separately)
Cleaning and lubrication may be the solution
Either power is fluctuating or the movement of the gantry is not a constant speed through the full range of travel.