Engraved name text is split in two, top and bottom

[lewpatty (Lew Spurlock)]

Hi, First time asking for help. I have a Mecpow X3Pro 10W diode laser. I have been using it for a few months but a new problem has occurred I have not seen before. I have made cutting boards to order and engraved the couple’s names and anniversary date. This time the text on one layer is split in two with a distinct separation between the top and bottom of the names. (see photo attached)
The font is Edwardian Script engraved at 4500 mm/min and 50% power, the same setting as I have used for other similar projects. This is the first time, though, for using this font.

The first time it happened I thought I may have bumped the machine or it had gotten caught on the air feed or something. I sanded the whole thing down to get rid of that cut and did it again. The problem is not as severe this time but still not good. I can’t keep sanding the board or I’ll have to remake the whole thing again.

What should I do to correct this?

[thelmuth (Tim Helmuth)]

Looks to me like slipping on your x axis. Check your machine thoroughly for play, particularly the set screws on the motor pulley.

Guide to mechanical adjustments and maintenance

[lewpatty (Lew Spurlock)]

Thanks, I’ll give this a try today.

[baricl1317 (Loren Baric)]

4500 speed seems super fast to me. Try cutting in half and see what happens. But also could be mechanical issues as mentioned above.

[lewpatty (Lew Spurlock)]

The max speed on this particular machine is 10,000 mm/min. I have used these settings for at least 5 other boards and it works effectively for the woods I have used. But thanks for the response