Hi guys! This is my first post here.
I just received my latest toy in the mail a few days ago. The Eleksmaker A3 2.5W http://www.banggood.com/2500mW-A3-30x40cm-Desktop-DIY-Violet-Laser-Engraver-Picture-CNC-Printer-Assembling-Kits-p-1003863.html
Which I assembled the that night, this morning I finally got around to playing with the software end of things.
Before purchasing I had watched a handfull of youtube videos and reviews for similar products. Paul Jenkins (An Australian youtube woodworker) suggested flashing on Grbl and using Laserweb3. Instead of bothering with the Benbox software I decided to cut right to the chase and go straight to using Grbl.
I followed this video from another youtube woodoworker who had purcahsed the exact same laser as I had. https://www.youtube.com/watch?v=9PijjOQbtZo&list=LLGx5AIPp7IOISNYQZNXl7kQ&index=1Now to the problems I'm having.
1. Jogging the laser in Laserweb3 is yielding strange results. The issue I'm having here is that jogging the laser 10mm, actually moves it approximately 35mm. This is same on both the X and Y axes. X is maxing out (just bumping in the gantry) at 120mm and Y at 100mm, with 0,0 being the bottom left.
This leads to issues with scaling of the images as the image bounds are much larger than those fed into the program.
For my first test burn I had to set the bmp DPI to 1200. The image was ~14mm square according to Laserweb but the burned image actually came out at about 40mm. There's also a gap of 2mm between each pass that the tool made.
2. In an attempt to trouble shoot my problem I set the machine size to 120x100 (Where is was maxing out before). I still had to modify the DPI to get the bounds to fit within my piece, the units are still far off.
Now I attempted to do another test piece and the laser doesn't seem to be getting hot enough to burn. I tried again after confirming that the max power was set to 100% (apparently this diode doesn't have scale-able power). Still not burning. So I tired once more with both Min and Max power at 100%.
I also did a few more tests setting the feed as low as 1mm/s. Oddly the feed speed doesn't actually seem to be affected by any of the feed or travel settings. Then I reset all my settings back to what I had before and still the same result.
To clarify; The laser isn't burning material (wood) which I had previously done a (hardly) successful test burn on. The laser does turn on, and it's brighter than the low power positioning light, but it's not burning. I also ensured that it's focused.End of my problems.
Thanks for taking the time to read through and help me with my problem. I'd love to get this running so I can start experimenting. It's also kind of important to get it running reliably since my workshop doesn't have access to internet (or even cellular data really) so I won't be able to do much google troubleshooting out there.Bonus Questions That I Could Also You Help With
1. Should I be concerned about the temperate of the environment I store it in? The shop gets as cold and 5C in the winter, but is heated with wood when I'm there.
2. Currently the control board is in the upper-middle, with home at the lower left. I noticed with my tinkering that the cables for the laser and X motor fall down in the engraving area when it moves up the Y-axis and I'm concerned it might get caught in the path of the laser.
Should I just wrap some wire around the the plastic cable guide to make it a little more rigid?