Benbox Laser Machines/CO2 Lasers/3D Printers

Not sure how this happened.  I converted my Inkscape SVG to a DXF and for some reason it shows up in T2 in blue.  It wouldn't bother me but it is somehow screwing with the power output.  I ran some test focus lines and it worked perfectly but the focus line shows in black.  When I ran the file I wanted to cut it ran thru the whole cut file and didn't burn anything just a few dots.  I don't know how to make the DXF lines in black as they are black in Inkscape.

When I am cutting balsa I try to cut as fast as I can to minimize charring.  Because of this sometimes it doesn't cut all the way thru on some pieces because of different density.  Is there anyway in T2 to selectively pick which part you want to make a second pass?  I have my burn board set up so I can look at the balsa to see if it cut thru and put it back in exactly the same spot.  I guess I could run another dxf file but that would be a pain.

I had cobbled together an air assist that I have been using with an aquarium pump.  It seemed to work okay.  I designed a set up that will connect to my Harbor freight airbrush compressor.  Should be able to get more air and a better system to aim it.  It is all printed with my 3d printer....I did use a M5 nut for the internal threads but the thumb screws were entirely with the printer.  I need to test to see if it all holds up.  I have redesigned the bracket to get a little more support than the one in the picture.

Anybody else been having issues with accessing the forum?  I have been unable to access for the last couple of days.....it happened about a week ago as well.  I can get to all other internet sites but am unable to reach this forum....tried on Edge and Chrome neither worked.

I think I had asked about this before but still need some clarity.   I was designing a decal sheet in Inkscape and had the decals precisely sized for the airplane I am building.  When I printed it from Inkscape it was exactly the correct size.  When I pulled it into T2 and traced for cutting out the decals the cut was much smaller than the print.  I remembered from before that I had to change the DPI.  The last time I did I had to bump it to 256 dpi.  On this one 256 was not large enough it turns out it was about 500 dpi so I am guessing by multiples it should be 512.  I found that Inkscape allows you to change the DPI on a png pretty easily.  My question is how do you know what factor of resolution you need.  I just did this by guessing then running the cut to see if it was correct.  Also is there any "undo" function in the trace function on T2.....occasionally you need to undo and retry but I couldn't figure out how....I don't think control Z works.

I am trying to make a decal and want to set up T2 to cut an outline of the .jpg.  When I use auto trace it picks up a variation in the color of the jpg and adds extra lines.....I just want to cut around it.  I couldn't get trace to work at all....not sure if I am doing it correctly.  Is it going to be possible to trace around the outside of this to just cut out the decal?

Anyone see or buy this?  https://www.banggood.com/445nm-5_5W-5500mW-Blue-Laser-Module-With-Heatsink-For-DIY-Laser-Cutter-Engraver-p-999283.html?rmmds=search&cur_warehouse=CN

Seems big problem with the older 5watt was you couldn't get a small focus point.  I get really good results with the my 2.5W but if this works better might be worth it.

When I look at the extruder bracket it isn't parallel with the heat bed so the nozzle is at a slight angle.  Is this normal?  It seems to print okay but it doesn't look correct.