Engraving migrating to the right

[Ihrke052]

Sorry if this has already been covered but I had a very successful engraving today with my home built cnc laser but noticed the engraving migrates slightly to the right on the engraving. I feel like it could simply be a matter of the y axis speed/acceleration but was hoping for input from others. I am still testing settings in my stepper drivers to get them dialed in but ultimately I really liked my final product today, just wish it wasn't slightly skewed.

I have had successful cuts and (from what I can tell) they aren't skewed at all. My table is a large gantry system with 2 x axis motors working together and a single y motor. I have the speed/acceleration set to the same for both x and y but have noticed others on here setting their y slower. Is this typically the best for the y axis and if so, why?

[Tech_Marco]

Are you using my DSP card? How fast did you run the engraving? You may change the X or Y or both oby changing falling edge to rising edge or the other way around

Some motor driver is rising edge triggering while other is falling edge triggering


Marco

[NickWL]

Do you mean the origin is moving? Or is the whole picture drifting rightwards as it prints?
Maybe a photo would help if the latter is the case.

[Ihrke052]

Here is an example. It may be hard to see it but compared to the digital file I can tell the face gets slightly skewed as it moves down the picture.

I am using the AWC608 and have tested numerous speeds and have seen this "skewed to the right" look on most of them. I have typically kept the x and y axis the same though, so if I change one I change the other to the exact same speed/acceleration, which is why I thought maybe that could be it. Wanted to check though if this is commonly the result of anything else.

Thanks for the responses!

[Greolt]

As Marco has said, first thing I would be looking at is the "Pulse Edge" setting.