[ANDREAS1968]

hello to all here
i have one problem with one chinese laser engraver 25watt /30x40 working area. The machine working well in generall but when i m engraving something then every 5cm about always it lose (miss) 1 step in Y - axis. The result of that is to leave one very thin unegravable line in this line of Y - axis. So if someone has any idea what is the problem for this please to writte me a suggestion

thanks
andreas

[Scramjet]

Hi maybe is too late for this reply

Try checking the rack, screw or belt to see if any crack is on there maybe is a little bump that produces such anomaly.

Greetings

[kewlkiwi]

'Could also try checking the pulleys on the belts (if that's what is used) to see if the grub screws holding them on are loose.

Maybe one pulley has a tiny amount of play, and when the direction reverses it goes back to the correct spot - giving the effect you describe.