Author Topic: Making crooked lines where they should be straight.  (Read 305 times)

Heartlander

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Making crooked lines where they should be straight.
« on: September 26, 2016, 07:22:31 AM »
Morning. I have a 2.5W violet ELEK(like the Banggood)  laser. I have three questions.

I scaled this JPG down to 25% of its original value. WHen I engrave it on plain clear mahogany sometimes the flagpole becomes crooked but the rest of the graphic comes out correct. Other resized graphics do similar odd distortions. Not the entire graphic or even the same horizontal or vertical line, just spots of randomness. Any ideas?

Also, is there a basic How To for focusing or do you just go for the tightest dot?

A primer for cutting thin wood?
ELEKS Maker 2.5W A5 laser engraver, Robox 3D printer, Wanhao i3 Duplicator 3D printer, Windows 10

Agastar

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Re: Making crooked lines where they should be straight.
« Reply #1 on: September 26, 2016, 07:51:45 AM »
The wood grain does not burn evenly which can cause the effect you are describing. As for focusing, yes just adjust to the finest point and do a test print. You may find that you need to set it a wee bit out of focus if the beam width is smaller than the gaps in the lines of each laser pass.