beamo - Open Bottom Kit

Open-bottom engraving requires advanced operating skills.

The kit is only available in specific regions.

It is highly recommended that you become familiar with the operation of the machine before starting to use it. Open cover engraving requires a Wi-Fi connection to operate. If you want to do splicing engraving, preparing a dedicated wireless router (Wi-Fi AP) will make it more convenient to use.

Safety Precautions

1. Everyone within sight must wear laser safety goggles to avoid the risk of blindness.
2. Do not expose any part of the body to the work area.
3. Do not allow minors to use the machine unsupervised.
4. Do not move the machine while the laser is operating.
5. Do not use for engraving in any direction other than downward.
6. Do not use in an environment where children may freely enter and exit.
7. Do not stare at the flame generated by engraving for a long time.
8. In open cover mode, always turn off the machine when not in use and remove the USB safety lock.

Work Surface Precautions

1. When operating on a table, spread two layers of aluminum foil on the table to prevent the laser from accidentally damaging the tabletop.
2. When operating on the floor, engraving on stone or concrete surfaces will leave marks but will not catch fire. In practice, concrete floors are best.
3. Do not engrave on epoxy resin floors, as this will produce harmful gases.
4. If the laser hits the floor or table, the resulting marks are irreversible. When engraving, it is recommended to check if the aluminum foil is damaged to avoid damaging furniture.
5. Aluminum foil needs to be fixed with tape to prevent it from being blown away by the air pump.
6. The surface of the aluminum foil must be flat. Wrinkled aluminum foil will diffuse the laser light and cause danger.
7. Tar on the floor after cutting wood can be removed with alcohol or detergent.

Environment Requirements:

1. Well-ventilated environment
2. Good network signal environment
3. Hard board for camera calibration
4. Prepare filtering equipment (recommended)
5. Prepare activated carbon mask (recommended)

What's in the Box

The open cover kit includes ① USB safety lock ② Laser extension rod ③ Laser safety goggles

Installation

Opening the Bottom Cover It is strongly recommended to follow the steps below to avoid damaging the machine.

1. Put on safety goggles

2. Unplug the power

3. Remove the honeycomb panel

4. Remove the bottom cover fixing nuts

5. Remove the bottom plate

6. Keep the screws and nuts of the bottom plate properly to avoid loss

▲ Remove the four fixing nuts of the bottom cover (If using the kit for the first time, spray some alcohol on the four fixing nuts and wait for the screw glue to melt, then use a tool to forcefully turn the nuts open)

7. Installing the Long Focusing Rod

If your beamo has already been fitted with an auto-focus kit, please refer to this instruction first, or request a focus sensor extension kit from customer service, then refer to the linked instructions for installation.

▲ Unscrew the focusing mirror retaining ring

▲ Remove the laser head, rotate and remove the silver cover and store it properly

▲ Install the laser extension rod

▲ Put the extended laser head back into the fixing base, press the black air duct close to the bottom of the camera fixing bracket, and lock the focusing mirror fixing ring

8. Installing the Safety Lock

Insert the safety lock of the kit into the machine, and remove it when not in use to avoid safety problems caused by accidental use by others.

9. Start the Calibration Procedure

When using the open bottom kit, an additional long focal length mirror displacement calibration is required. The principle of camera calibration is to engrave a calibration pattern on a plane and obtain the error through the camera image.

a. Click "Menu" > "Machine" > "Machine Name" > "Camera Calibration (Open Cover Module)".

b. Place the Calibration Board Material Unlike general camera calibration using plain paper, camera calibration for the open cover module requires a hard board material (wood board, foam board) as the base material for the calibration pattern. Ordinary white paper will be blown away by the exhaust fan and air pump. After fixing the hard board material and focusing, you can click "Next" to engrave the calibration pattern.

If automatic calibration fails due to material texture, manual adjustment of the calibration values is possible. Accurate camera calibration can effectively improve splicing quality. Each time the extension rod is installed, only one calibration is required.

Perform Automatic and Manual Calibration

▲ After engraving is completed, the software will automatically generate calibration values. When engraving with an open cover, the preview error should be minimized as much as possible, and some calibration values may need to be manually adjusted.

Observe the offset of the red box on the computer, adjust the X-Y displacement values on the right side, rotation angle, size and other values to make the red box overlap with the middle box of the preview cross.

After clicking Next, the calibration is complete.

Usage

Make sure "View" > "Open Bottom Mode" is checked when you're operating under this mode.

In the document settings, the camera preview will be in the correct position after the open-bottom option is turned on. After placing the material under the machine, you can send the file as the same regular workflow and start engraving and cutting.

Operation Tips

1. For large-scale cutting, it is recommended to use SVG format for the file, and make the entire path to be cut into one SVG image, so that when splicing, you can directly move the graphics in the software.
2. For large-scale engraving works, it is recommended to leave blank space (blue large circle) in each engraving to allow for errors.
3. During preview, you can align with two or more reference points. If there are parts that were originally going to be removed, you can add alignment markers. (As shown in the figure, the red triangles are the parts to be removed, and the yellow X is the reference point.)
   
4. If the preview position is slightly different each time, please make sure that the bottom of the camera bracket is close to the air duct and the machine is level.
5. When moving the machine, please lift the machine and then move it. Dragging the machine may cause damage to the foot pads and work objects.
6. After multiple splicing, errors may be magnified. It is recommended to engrave sequentially according to the connected range.

   
   

   

   

   The greater the difference in the adjacent order, the greater the accumulated error.