We have a ClourRay RoHS rotary and would like to laser mark type on 0 degree, 90 degree, 180 degree and 270 degree positions on a cylinder. Are there settings in LightBurn to control the position of the markings?
Not directly in degrees, but the angular position is proportional to the linear distance on the Y axis. If the circumference of the cylinder was 360 mm, then each millimeter would correspond to 1° of rotation.
That’s rarely the case, of course.
If the cylinder diameter is 25 mm, then:
- The circumference is 78.54 mm = 360°
- 1° = (78.54 mm / 360°) = 0.21817 mm
Set up the markings so the 0° point is exactly on the Y axis, tell LightBurn to start from the current position, and:
0° = 0 × 0.21817 = 0.000 mm90° = 90 × 0.21817 = 19.635 mm180° = 180 × 0.21817 = 39.270 mm270° = 270 × 0.21817 = 58.905 mm
The Numeric Edits toolbar lets you plunk numbers and suchlike at exact coordinates. The toolbar can handle multiplication and division, so you need not find your calculator.
If you need a scale along with the numbers, the Grid Array tool will create a series of lines with exact spacing. If the scale has lines of different lengths, make up a small section with the lines laid out correctly, then use Grid Array to duplicate that chunk.
It’s a bit clunky to set up, but should get you where you want to go.
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