![]() There’s no charring, but note the loss of detail, especially around the scrollwork.All CNC machines (routing, engraving, and milling) are potentially dangerous and because Vectric Ltd. The one on the right was printed with tape. I’m hoping that staining will cover any remaining discoloration. I cleaned up the charring with denatured alcohol. The one on the left was burned without tape. Here are a couple of pictures to demonstrate what I’m talking about. I guess you could slow it down - maybe I’ll give that a try another time. They end up looking like a bad rubber stamp. ![]() Big bold letters and graphics would benefit from using tape, but if you have a lot of small text, or detailed graphics, getting the tape off is tedious, and fine lines sometimes do not burn all the way through. ![]() It absolutely does reduce charring, but I would only do it if what you’re burning is not too detailed. I did another burn using masking tape to reduce charring. It just takes a couple of turns before it starts changing, which is why I thought it didn’t work when I experimentally gave it one click each direction - I didn’t want to risk messing up the burn at the time. I am also using the 2004 LCD and this afternoon found that I could change the feedrate while running a program, as you said. We’re all learning, Curt! I’m just focusing on this right now because I had promised to make these awards for an upcoming livestock show. I’ll be giving it another try tonight, but for my next real project, I think I’ll need to stick with the rasterized images. If anyone has any experience and suggestions, please let me know. The laser spends too much time filling in lines, and just chars the whole area. I used full power, 800 mm/min, and 80% stepover. That’s my observation after just a couple of attempts using ESTLCAM. The main problem is that, unlike a router, which can zip back and forth over an area to clear out a pocket and only removes material as it encounters it, the laser continues to burn and re-burn as it moves, so ideally, the laser should never pass over the same spot twice, at least not while it’s on. I might be able to get decent results eventually, after much tweaking of speed, stepover, and power, but I was surprised and disappointed at my first attempts at burning a non-rasterized image. I’ve learned one thing so far: if you want easy, consistent burns, use the rasterized approach, which burns the image a line at a time, never burning the same spot twice, or spending too much time in one area. I could not get the inkscape plugin to work, and I haven’t been able to figure out how to set up the laser as a tool in ESTLCAM.Īny tips on how to get those tools working, or suggestions for other tools - preferably open source or at least not too expensive - would be greatly appreciated! So I guess I’m looking for a program with better toolpathing for lasers. The most efficient way would be for the machine to just turn on the laser and draw the square, rather than build it pixel by pixel on opposite sides of the burn area. This means that for most of the burning time, the machine is traveling and burning like this (each blip is burning a single dot, which is part of the square outline):īlip …travel to the other side of the picture … blip If I create an image that is a simple outline of a square, and generate gcode of the image with LaserEtch, it will burn the image like a raster, line by line. ![]() I know that someone on here mentioned this before, but I can’t find the post, and I don’t think there was an answer, so I thought I’d ask again, since I’ve just run into the issue. ![]()
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