Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog

Using the Rotary attachment on the Epilog Legend EXT36 at Pier 9.

Previous experience with Epilog Lasers is required.

We have 3 of these at the Pier 9 workshop. They can be found in the staff drawers. Please notify staff that you will be using them. Please follow this instructable and read the manual from Epilog: http://www.epiloglaser.com/downloads/pdf/ext_4.22....

On the left are the drive wheels. On the right are the
adjustable height follower wheels. When mounting your material in the machine, put the narrow end toward the right.

It is very important that the machine be turned off while connecting or disconnecting the rotary attachment. It will damage the machine!

Step 1: Step 1: Turn the laser on and lower the bed

Rotary Etching on an Epilog
Rotary Etching on an Epilog

Lower the bed such that there is enough room to remove the vector grid and support slats, and enough room for the rotary attachment.

Step 2: Step 2: Remove the Vector Grid

Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog

Once the bed has been lowered you can remove the vector grid or task table. Also remove the support slats. Clean the bed if is has debris in it. Store the vector grid and slats in a safe location, out of the way.

Step 3: Step 3: THIS IS IMPORTANT!! TURN THE MACHINE OFF

Rotary Etching on an Epilog

It is critical that the machine be turned off before connecting the rotary attachment. Turn the machine off. Did I mention to turn the machine off? It will damage the electrical components of the machine if you do not turn it off before connecting the rotary attachment.

Step 4: Step 4: Place and connect the rotary attachment

Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog
Rotary Etching on an Epilog
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There are 3 holes in the bed of the laser that align with pegs on the bottom of the rotary attachment. There is only 1 way to put this in.

Once the attachment is in place, double check that the machine is OFF. Then connect the white connector. Due to soot build up from smoke inside the machine, the connector might be a bit clogged if you are having difficulty, ask shop staff for assistance.

Step 5: Step 5: Power the machine on place in your material

Rotary Etching on an Epilog

Turn the machine back on and let it re-initialize. It will recognize that the rotary attachment is connected and will position itself accordingly at the center of rotation.

Now you can place your material and get it ready for focus.

Step 6: Step 6: Level and focus on your material

Rotary Etching on an Epilog

Items with a slope, such as the glass in this example can be aligned by adjusting the height of the follower wheels. You want the surface you are etching to be parallel with the bed and travel of the laser head. Bottles can also be aligned in this way.

Once your material is level, use the focus mode. The machine will jump over so the focus gage is above the center of rotation. Focus the machine as you would for a 2d part.

Step 7: Step 7: Use the red dot and reset home

Rotary Etching on an Epilog

Turn the red pointer on, use it to align the edge of your material. This can be hard to see on clear glass, but you'll figure it out using all of your previous laser experience. Disable the x/y motors, slide the laser head to your alignment point and reset home.

Step 8: Step 8: Sizing your file

Rotary Etching on an Epilog

Just like in 2d, your file should be appropriately sized for your target material. It only gets tricky if you are trying to lase a continuous pattern all the way around your material. Use PI and some calipers to get close, but be ready for some disappointment, it is very tricky to get it perfect. Better to redesign such that your image isn't so tolerant critical.

NOTE: see the orientation of the image here? This will not lase in the direction I want. I totally did this on purpose to illustrate this point. Your X axis is left/right. the Y axis goes around your material.

Step 9: Step 9: LASE

Rotary Etching on an Epilog
Rotary Etching on an Epilog

Use recommended power and speed settings.

OK GO.

Enjoy results.

The first image here is the incorrect axis. The second is correct.

 
 

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