FIXED! I will try to ask here as there is a lot of people

Lasers
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FIXED!

I will try to ask here as there is a lot of people with good knowledge in laser cutters…
After i have almost finish with my custom 50w laser build i have make some test cuts … the pieces i cut was squares and circles , in my X axis i am dead right in my measurement but in my Y axis i am off about 0.2mm.
I have measure my Y axis distance with dial gauge it was right … i have fire laser dot in distance from 0-10, 0-100, 0-200 mm is dead right … but when i cut a piece i am off … Any thoughts why is this happened ??

I am using #C3D mini with LW3

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Are you saying that you measured the Y movement without cutting and it is dead on. Then when you measure it when cutting it is off .2mm?

How did you measure these …?

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Nice build. Why LW3 and not LW4

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@donkjr measure what? the 0.2mm difference in actual piece i was cut do you mean ? with my caliper …

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@Ariel_Yahni_UniKpty Thanks ! … i wanted first to finish with my build and then i start to learn the LW4 … as i find it a bit complicated :slight_smile:

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@Kostas_Filosofou you measured the cut piece and it was off .2mm from the design?
Is it off this amount on both sides? Edges are often not cut square.
… .2mm is not a lot?

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@donkjr exactly was off about 0.2mm of the design … but only on my Y axis … yes i was measure both sides-edges of the piece … I know is not that match …but you know …
I was searching in the web now and a find a article that says maybe is the mirror alignment the problem … as i am sure that i am 100% center i’ll check it all from beginning on more time ,maybe i miss something

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@Kostas_Filosofou ​ let me know if I can help you on LW4 or take a look at my stating up videos

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Maybe steps or something is preventing correct movement

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@ThantiK ​ this could be what you where looking for

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@Ariel_Yahni_UniKpty Thank you :slight_smile: I have already see some of your videos …good job by the way! definitely i watch it again when i start the learning procedure

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@Ariel_Yahni_UniKpty i have already check my steps … as i mention in my post i have measure manually ( i move the axis 1mm-10mm -100mm throw the LW) with my dial gauge and i am ok

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@Dan_Shookowsky how do I know that?

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Are you accounting for the kerf of the laserbeam?

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@Dan_Shookowsky I am using illustrator …

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@Dan_Shookowsky oh. I didn’t thought about that I’ll try it

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I’m not sure at this point if LW accounted for the line width

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Also have you tested LW4 to see if the same error occurs, I see you stated you are running Lw3

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@Alex_Krause no but I try it also … I want at first to be sure that the problem isn’t hardware-mechanical

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@Kostas_Filosofou you can always look at the Gcode to see its positioning correctly.