Its great to see you here on the community pages!
Bad news, you are probably getting the best results already and engraving is time consuming and boring! Yawn!
I know you are using Lasercut 5.3 by Leetro on a Blacknose A3 Just Add Sharks laser cutter. It has more powerful steppers than RasPiTV’s K40 and can probably scan a bit faster than 250mm/s but then if that’s where you are getting the best results without slipping.
Things to remember when etching/scanning:
- When engraving Because you are mostly moving the flying head/mirror 3/lens part of the cutter side to side along the X axis, and its much lighter than moving the x axis gantry, you can go considerably faster than cutting or moving the laser cutter head in both X and Y directions. I would suggest a couple of test engraves at higher speeds.
- If you have an option like scan gap, you can experiment with a larger or small scan gap (the distance travelled along the Y axis after each pass along the X).
- Ensure that you lay out your engraving longways along the X axis. i.e. if you are engraving a pencil, you will get a faster engraving left to right by laying the pencil along the X axis than laying it top to bottom along the Y axis.
- Remember that the faster your engraving is set the more acceleration and deceleration space it’ll need either side of the engraving.
- Can the design be changed to include “kiss cuts” (aka linear engravings) this is the process of drawing lines with a low power higher speed "cut’ beam?
Let us know how you get on or if this helps. Would you consider sharing a picture of the work?