One should try to get granite that is as black as possible and which has as little "flecking" as possible in the material. Black granite is a difficult material for engraving photos and selection of the proper material is quite important. For 500 dpi, the suggested initial settings are Speed = 80% and Power = 19%.
For a 50 watt machine, the suggested intial settings are Speed = 80%, Power = 16% at 600 dpi. The parameters for black granite have been compiled using input from engravers around the country who engrave a lot of photos on black granite. Also, use the speed and power settings suggested below for the named parameter sets. The named parameter sets use as backgrounds materials that were provided with the original PhotoGraV software and therefore do not be alarmed if the material name does not appear to be correct. Now, just click the "Auto Process" or "Interactive Process" button and the input image will be processed for the material corresponding to the named parameter set. Specifying the named parameter set is equivalent to selecting a material, i.e., you should NOT specify a material after using the "Load Params" button. To use the named parameter set (.prm file) in PhotoGraV, just open the image in PhotoGraV as usual and click the "Load Params" button and specify the folder and file name for the parameter set. The named parameter set file (.prm file) will be unzipped and placed in the folder you specified. In the resulting WinZip dialog box, specify to which folder the file should be unzipped and then click "Unzip". After the download is complete, find the folder and double click on the ".exe" file you just downloaded. To download and use these files, click the desired link and, in the resulting dialog box, specify a folder for saving the downloaded ".exe" file. The named parameter sets are available below as self-extracting zipped files. These materials include Black Granite, LaserTile, and Alumamark.
There are several named parameter sets available for new engraving materials or for materials that PhotoGraV did not originally include.
PhotoGrav 2.xx Parameter Sets for Other Materials If you have PhotoGraV version 2.xx or earlier and wish to upgrade to the current version please call us at 33 or toll free at: 86 The current version of PhotoGraV is version 3.0.1. Photopaint Equivalents for Photoshop Functions.rtf I think that all the Photopaint functions exist in Photopaint 10 and above except the Touch-up Brush which exists in Photopaint 12. rtf document (Opens in MS Wordpad & MS Word) which documents the correspondence between Adobe Photoshop functions used in the ARA Seminar titled "Laser Engraving Photos" and Corel Photopaint functions. Samples | Q & A | Downloads | BUY IT NOW !
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