Help with Rotary Setup

Community Laser Talk
2

Ok, I figured out what I was doing wrong.

So you should only ever do Rotary Setup ONE TIME, just for your hardware.
The Rotary Setup has NOTHING to do with your cup or object you are engraving.

  1. Figure out Y Driver Pulse Revolution Dip Switches = 5000 (my driver)
  2. Use caliper or count teeth on Rotary Motor Gear / Belt Gear = Gear Ratio = 1.5 (my Rotary)
  3. Use caliper to measure diameter of wheel object sits on (incl. rubber) = 67.6 (my Rotary)

Now do the math
LB Steps Per Rotation = Value3 / (Value1 * Value2 * Value3)
My Steps Per Rotation = 67.6 / (5000 * 1.5 * 67.6) = 7500

So in LB Rotary Setup use:
Steps Per Rotation = 7500
Roller Diameter = 67.6
Object Diameter = 67.6
Circumference = 212.372 (whatever it auto calcs as)

Put a piece of Tape on top of rubber wheel, and click TEST
Should do 1 complete revolution, then go back to start.

Now, in the LB Software, draw a rectangle in the Y direction that is the Circumference of your Mug / Cup. Put a piece of tape marking the top edge of the cup, then hit FRAME. It should do the same as before, cup should make one complete revolution.

To change to another diameter mug, just redraw your Y dimension for new circumference.

Of course the X dimension is how far left and right you want to go.
Use Left Job Origin from Current Position or User Origin if set.

Hope this helps others, as I couldn’t find much on how LB does this.

Thanks,

Joe

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