LaserSketch - Expectations? - Engraving Etc. Forum

<body> <h1>Full Version: <a href="https://www.engravingetc.org:443/archive/index.php?webtag=EE&msg=1168.32">LaserSketch - Expectations?</a></h1><a name="a1168_32"></a><p><b>From: Cody (BOBTNAILER)</b> [<a href="lmessages.php?webtag=EE&msg=1168.32">#32</a>]<br /> 1 Jul 2005<br /><b>To: Ken D. (KDEVORY)</b> [<a href="lmessages.php?webtag=EE&msg=1168.31">#31</a>] 1 Jul 2005</p> <p>Very interesting...</p> <p>I just tried one at 600 dpi, and another at 300 dpi. The 300 dpi image lost a little bit of detail, but not much.</p> <p>Something else that I may have to play with is my scanner settings for dpi. I hadn't even thought about that until now, but it will probably make some difference, too.</p> <p>Do you scan at 300 dpi when you engrave at 300 dpi?</p><hr /><a name="a1168_33"></a><p><b>From: Ken D. (KDEVORY)</b> [<a href="lmessages.php?webtag=EE&msg=1168.33">#33</a>]<br /> 1 Jul 2005<br /><b>To: Cody (BOBTNAILER)</b> [<a href="lmessages.php?webtag=EE&msg=1168.32">#32</a>] 1 Jul 2005</p> <p>As a general rule I try to avoid resampling. I will usually scan at the desired output resolution, or do the math so when it is scaled to the desired output dpi the size will be what I desire. I feel this is more important with error diffusion than it is with pattern/halftone dithering. </p> <p>At 300 dpi there won't be much overlap among the dots, so your power/speed needs to create a "full dot". </p> <p>At 600 dpi there is overlap, so each spot is covered by multiple overlapping dots/pixels. For a good grayscale it should be "fully engraved" when all overlapping dots are on; a subset of overlapping dots should partially color it. This method will be very sensitive to having the power set too high. (In some respects this approach is similar to using the driver's 3D function when it is properly calibrated.)</p> <hr /><a name="a1168_34"></a><p><b>From: Cody (BOBTNAILER)</b> [<a href="lmessages.php?webtag=EE&msg=1168.34">#34</a>]<br /> 1 Jul 2005<br /><b>To: Ken D. (KDEVORY)</b> [<a href="lmessages.php?webtag=EE&msg=1168.33">#33</a>] 2 Jul 2005</p> <p>Sorry...you lost me on that one.</p> <p>I have no idea what error diffusion is. I am familiar with dithering only in the respect that it "pixelates" images as they are resized.</p> <p>Can you give me an example of the "math" that you mentioned? I'm completely ignorant about that.</p> <p>Perhaps this is the stuff that I need to find a good class in.</p><p class="edit_text">EDITED: 1 Jul 2005 by BOBTNAILER</p> <hr /><a name="a1168_35"></a><p><b>From: Ken D. (KDEVORY)</b> [<a href="lmessages.php?webtag=EE&msg=1168.35">#35</a>]<br /> 2 Jul 2005<br /><b>To: Cody (BOBTNAILER)</b> [<a href="lmessages.php?webtag=EE&msg=1168.34">#34</a>] 3 Jul 2005</p> <p>Cody,</p> <p>Check out thread # 942.1 "Halftone vs. Error Diffusion" in the Laser Engraving folder. You can enter 942.1 in the bottom of the left column under the folder list.</p> <p>scan resolution = (engrave resolution x engrave dimension) / scan dimension</p> <p>600 DPI scan = (300 DPI engraving x 2 inches engraved) / 1 inch scanned</p> <p>150 DPI scan = (300 DPI engraved x 1" engraved) / 2" scanned</p> <hr /><a name="a1168_36"></a><p><b>From: graniteman (MGARCIA)</b> [<a href="lmessages.php?webtag=EE&msg=1168.36">#36</a>]<br /> 8 Oct 2006<br /><b>To: Ken D. (KDEVORY)</b> [<a href="lmessages.php?webtag=EE&msg=1168.1">#1</a>] 21 Feb 2007</p> <p>hi Ken.<br /> sorry to hear about the mishaps. im mark garcia, wholesaler of granite plaques. we are new suppliers but have a very good product to sell. if your interested i can email you a price list. our web-site is nearly complete but you are welcome to take a look at it. <a href="http://www.artistic-laser.com">www.artistic-laser.com</a> <br /> we started our business plan with customer satifaction as our primary goal. so we hope to hear from you.</p> <p>thanks,<br /> mark garcia</p><hr /><a name="a1168_37"></a><p><b>From: graniteman (MGARCIA)</b> [<a href="lmessages.php?webtag=EE&msg=1168.37">#37</a>]<br /> 8 Oct 2006<br /><b>To: precisionlaser</b> [<a href="lmessages.php?webtag=EE&msg=1168.6">#6</a>] 8 Oct 2006</p> <p>hi Mark. im Mark Garcia of artistic-laser. we are a new granite wholesaler located in redlands, ca. (so-cal) we have a very good granite that you may be interested in. soon we will have hard black marble for sale. we are still waiting to move into our warehouse. but we are able to ship out product at this time. so we hope to hear from you soon.</p> <p>thanks,<br /> mark garcia<br /> <a href="http://www.artistic-laser.com">www.artistic-laser.com</a></p><hr /><p align="center">Show messages:  <a href="lmessages.php?webtag=EE&msg=1168.1">1-11</a>  <a href="lmessages.php?webtag=EE&msg=1168.12">12-31</a>  32-37</p> <h4><a href="lthread_list.php?webtag=EE">Back to thread list</a> | <a href="llogout.php?webtag=EE">Login</a></h4> <h6>© 2024 <a href="http://www.beehiveforum.net/" target="_blank">Project Beehive Forum</a></h6> </body>