I’ve recently started using the Otur YRR Roller and just can’t solve this problem. As a test, I have created the alphabet to be burned around the circumference of a simple solid wooden cylinder. The rotary settings have been adjusted, so that the last letter Z is a similar space from the first letter A. That is as far as filling the letters is concerned. However, when the laser carries out the line (outlining each letter) is starts on Z and aligns perfectly. However as it works its way aback up the alphabet to A, it gains distance (in the Y axis) so that when it reaches the A fill, the outline is a whole character to the left.
I’ve burned the same alphabet on flat wood and it’s perfect, so it’s something to do with using the YRR. I’ve adjusted the YRR belt from quite loose to quite tight. I have reduced Y speed and acceleration. I carried out tests and noted that for the return rotary direction, the YYR does not return the cylinder to quite the same place as the start and have therefore concluded that placing my test wood and future items on Ortur YYR is not going to accurate enough for small fill and line, unless I can avoid the return rotation.
If I burn the alphabet with fill only, there is no problem, but I need that crisp edge to the characters which line gives.
I would like to set Lightburn so that it starts by filling the first character A and then burning the line around it, before moving on to B and so on. This would then avoid the full return rotation which causes the inaccuracy between fill and burn. I have experimented with Optimisation Settings and Fill all shapes: at once/groups together/individually, but can’t get what I’m afer.
Any ideas/settings please?