TECHNICAL TIP FOR FILE PREPARATION FOR MULTIPLE LASER TILE IMAGES

The instructions were described Using Corel Draw 12 & Corel Photo Paint 12. Note, if you have different versions the process will be the same and the basic tools, grid, snap etc. can be found with the Help Menu.

Start by opening Corel Draw. Minimize the program and open Corel Photo Paint. Open your image in Corel Photo Paint

PART I – CROP AND ENHANCE YOUR IMAGE

  1. Crop the image if necessary to clean and square the edges. Use the crop tool in Corel photo paint.
  2. Enhance the image by first clicking on image located on the upper pull down menu. Click on adjust, then Brightness/Contrast, adjust the slider bars to bring definition and clarity to the image. It may take a few times to see what works best for the setting. But you will soon get a sense of what works best for your images with practice. Select OK when your image appears sharp and clean. Next practice with effects on the upper pull down menu. Select noise and Select remove moiré. I normally, center the slider bar, then select OK to finish. Finally, select effects, then noise, then remove noise then select OK to finish.

PART II – SIZE YOUR MULTIPLE TILE IMAGE FOR YOUR PROJECT

  1. Select Image, resample and type in the total width and height of your project. Select OK.

PART III – SET UP GRID FOR MULTIPLE TILES

  1. Measure the Laser tile from side to side (make note).
  2. From the upper pull down menu, select view, setup, grid and ruler. Take the measurement of the laser tile noted and type it into horizontal and vertical spacing. Select show grid and snap to grid. Select OK. The image appears with a grid that is now visible over your image representing the tile size.

PART IV – COPY IMAGE TO COREL DRAW

  1. 1. Select crop tool then click upper left on grid corner. Hold mouse button down and move to lower right corner of grid selection. Note: Depending on the size of your laser bed, you may do more than one grid at a time. For example, you may want to do a block of four tiles at once. Let go of the mouse button and the program will outline the area you have selected. On your keyboard, select enter key. This crops your selection.
  2. Now, select the object pick tool on the left tool bar. On the upper pull down menu, select edit, copy, then on the lower tool bar click on corel draw program to transfer your selection. Note: Do not close photo paint.
  3. Now, in Corel Draw, right click on mouse on the page area and click paste. You are now ready to position the section of the image and either mark or save. You can save the file as Row 1 Column 1, then mark all selections of laser tile if you wish.
  4. Next, Click on Corel Photo Paint. Select edit undo crop. You now have the entire image back and you can now crop the next section to mark. This process will help you save time of opening and closing programs.

I hope this helps you as basic information of navigating between programs for production of marking multiple lasertile images and in sizing your images.


CHANGING THE SIZE OF AN IMAGE USING COREL PHOTO-PAINT

  1. You want to start with an image that has good resolution, 250-300 dpi is recommended.
  2. Open the image and change the zoom level from 100% to To Fit.
  3. Choose the Object Pick tool from the toolbar.
  4. Right click on the image and select Resample, next change the image size to your desired dimensions by changing either the height or the width (only one), change the one that is the longest. For example if you want to convert an image to a height of 36 in. and a width of 48 in. then change only the width to 48 in., click OK.
  5. Right click on the image and select paper size or go to the Image menu and choose paper size , change either the height or width to your exact dimensions, click OK.
  6. Click on the File menu, select Save As, save image as mastercopy.

BREAKING DOWN AN IMAGE USING COREL PHOTO-PAINT

  1. Open the image and change the zoom level from 100% to To Fit.
  2. Click on the View menu, select Grid and Ruler setup.
  3. Change the horizontal and vertical spacing to desired dimensions (ie; 12×24), select show grid, select snap to grid, click OK.
  4. Select the Crop tool from the toolbar, select the first section of the grid by dragging the Crop tool from the top left side of the section to the bottom right side until the entire section has been selected. Hit enter on your keyboard.
  5. Click on the File menu, select Save As, save image as 1a.bmp.
  6. Repeat steps 1-5 for each section of the grid until entire image has been broken down. Note: Name each section of the image in succession, for instance row 1 should be named 1a, 1b, 1c and row 2 should be named 2a, 2b, 2c, etc.
  7. After you have broken down your image you can then import it into Corel Draw where you run one file at a time.

LEARN MORE ABOUT LASER CUTTING

 Keep in mind that different materials interact in different ways with these lasers. With each laser process, a beam of light interacts with the material to create a reaction that changes its physical appearance. The way in which the appearance in changed, however, depends on some variables. Aspects to consider when creating laser tile or other images include the size of the platform, the power of the laser, the lens being used, the cutting table, and the wavelength. Universal Laser Systems is a valuable resource on the fundamentals of laser technology and how the various processes work.