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Post by Derek the Admin on Nov 7, 2016 5:42:21 GMT
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Post by kevin on Nov 8, 2016 3:26:51 GMT
That is great work. The EGA looks amazing! The border around it looks like real rope.
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Post by Derek the Admin on Nov 8, 2016 5:23:05 GMT
Thanks. It does have a texture to it that adds to the realism.
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Post by rockhoppre on Nov 8, 2016 22:15:22 GMT
What settings did you use in Piclaser? My pics keep filling in the entire photo
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Post by Derek the Admin on Nov 9, 2016 2:36:02 GMT
Rock, I understand exactly what is happening right now. Check out our laser setup instructions. I know you got an assembled machine, but this will shed some light on the software side of things. It's on our resources page. Here is the direct link to the download: media.wix.com/ugd/8c4af2_ba436499845d44868e73ca28552aa28c.pdfHere's exactly what you need to know, and I'll fill in the gory details later. Go to the resources page and download the picture laser version of Grbl. It's at the bottom of the page, and here is the direct link: sabercathost.com/F0t/MillRight_CNC_Laser_using_JTgrbl.hex(Side note, that link may ask you to wait one minute to download or sign up now. Just wait). Flash that hex file to your control board using X Loader. I know you have it based on some previous discussions, but for anyone else reading this you can find it on the resources page as well. After flashing that version of Grbl, open a connection with Universal G Code Sender. Unlock it with $X. Immediately issue these commands: $14=1 then F4000. If you do not issue a $14=1 then it will give you a "queued" notice every time you try to do something. If you do not issue F4000 then it will move very painfully slow and be useless when jogging. IMPORTANT NOTE: IN THIS VERSION OF GRBL THE MAX S VALUE FOR THE LASER IS 255Use this version only for lasing pictures. Flash back to "Hex file - Grbl compiled with recommended settings for M3 w/ Laser, Spindle, & Homing" whenever you want to switch back to milling operations. Note that is this version, The max S value for the laser is 12000. For PicLaser, I highly recommend that you look at page 6 of the "Laser setup instructions". That is going to give you the perfect starting point. Slow the feedrate down for a darker burn. Speed it up for a lighter burn, and obviously a faster run. Just be prepared to wait a while. You can expect these jobs to take anywhere from an hour to five hours. Also, depending on the speed of your computer Universal G Code sender can choke on a large file. I've done some files with over 1 MILLION g code lines. I've switched to bCNC for this. That's a whole different software animal, so I would encourage you not to take that leap just yet... but know it's there if you need it. Gory details: The problem you are running into is the Grbl (the firmware on your control board) was initially designed to run a milling machine. Because a spindle can not instantly move from one RPM to another, Grbl's designer put a small dwell in there every time a new S command (spindle speed or laser intensity, for our purposes) to make sure that it wasn't going to get an S command to change spindle speed and then slam an end mill that isn't yet up to speed into the stock. The version of Grbl that was preloaded on your board is great for milling and lasing with a steady intensity (S value). Because of that small dwell, you end up overburning a particular pixel. The version of Grbl that I linked to for picture engraving has been rewritten to remove that dwell. To coordinate all of this, the authors of this version had to remove functionality for arcs, so that version can literally not do any G02 or G03 movements. That's ok, because PicLaser uses only G01 commands.
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Post by rockhoppre on Nov 10, 2016 16:54:35 GMT
Thanks I will try that and let you know how it works out. Thanks for you help
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Post by Derek the Admin on Nov 10, 2016 17:52:27 GMT
No problem Rock. By the way, itbis recommended to let a little (or big) box fan blow per the work area. This clears smoke to make the laser more effective and also keeps it cool.
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