This is a tutorial on how to use the ImagR free website to process images for use with your laser.
Step 1 - Upload and Crop Image
Go to the website https://imag-r.com. Scroll down on the page and click on the upload button. Browse to where you image is saved on your computer, select it and click on upload. The screen will refresh and you need to scroll down and you will see your picture on the page now.
It is now time to crop the image. Adjust the handles to get the desired crop area that you want. There are options for "square crop" which will make the image perfectly square, and also to round the corners if you want to do that. Once you have everything set the way you want, click the crop button at the bottom of the page. The page will refresh again and you will see your cropped image.
Step 2 - Resize
Scroll down on the page and click on the resize button. You can choose between mm, inches and pixels. Adjust the size of the image to fit your working area you will be using on the laser. Next set your resolution. I'm using a D1 10 watt with a laser size of .08mm so I chose 318 DPI. If you are using a 20 watt then your setting should be 254 DPI. Click the resize button to finish and the page will refresh showing two images.
Step 3 - Adjustments and Material Selection
Once you see two images, you will notice buttons on the left for mirror, invert, gamma, contrast, brightness and sharpen. Make adjustments if necessary. There is a button on the bottom that can add text to the image and placed wherever you want. Next, click on the materials select button at the bottom. Norton is the best choice for diode lasers, so select that button and then chose the material that you will be using. Adjustments will be made to the image to optimize it for the material chosen. Notice that it automatically inverted and mirrored the image for use on acrylic. Finally click the download button and select the format that you want.
You now have an optimized image for engraving.
Here you can see the final product exported with the norton tile setting. Tile was coated with "Heirloom White" paint by Rustoleum, 1 fairly thin coat, allowed to dry and then engraved. Wipe clean with lacquer thinner.