darcshadow

Super Moderators
  • Content Count

    3,048
  • Joined

  • Last visited

  • Days Won

    208

Posts posted by darcshadow


  1.  

    I made some progress.  I edited the HPGL file to contain a newline (line feed 0x0A) after every semicolon.  I.e. instead of this:

    IN;PU958,4935;PD958,4935;PD915,4932;PD916,4724;PD1001,4724;PD1001,4932;

    I send this to the plotter:

    IN;
    PU958,4935;
    PD958,4935;
    PD915,4932;
    PD916,4724;
    PD1001,4724;
    PD1001,4932;

    And now it plots the path perfectly.

    I have no idea how or why this works.  Line feed characters are supposed to be ignored in HPGL.  Maybe this extra (ignored) character introduces just enough delay between commands for the embedded CPU to be ready when the next command comes.  So I'm not sure if it's a fault in the plotter but I have an effective work-around.  I have done several paper plots and vinyl cuts and it seems 100% reliable now with this hack.  I will try to add a feature to inkcut to insert this padding character automatically.

    I have successfully used other US Cutter plotters with Linux and inkcut before, but with an RS-232 connection, not USB directly into the plotter.  I suspect the problem is not really specific to the MH365 but something about how the plotter's USB interface sends data to the CPU.

    The USB interface on the MHs is nothing more than a generic USB to serial chip so depending on the driver Ubuntu is using, that could be the source of the problem.


  2. One advantage of software not being supported anymore, they stop messing with it. Support just means they keep poking at it and "fixing" it. In most cases I'd prefer my software not be supported. ha!

    The only reason I ever upgrade OS is if something I really want to use is not supported on old OSs, and even then, it's usually kicking and screaming before I'll make the switch. I love new tech, but hate change. Poses a real conundrum. 


  3. ah! sorry. I think you have a problem with SB then, not your driver. SB should show your USB ports no matter what device drivers you have. Does the new laptop have "normal" usb ports? Several new computer only have USB-C, or USB-3. USB3 connectors look like traditional USB ports but are blue inside, or have and SS near them. SB might be old enough that it doesn't recognize USB3, I've not tried it on a newer machine. There are several on here that still use SB, maybe one of them can chime in if it works with USB3 ports or not. Might try uninstalling and reinstalling SB.

    In the mean time, what you could do, install the graphtec software and use it to cut with. You can still do your design and layout in SB, then just export it as an EPS file and open that into the graphtec software. I have not used said software, but from what I understand you should find it's much more capable than SB and works quite well.


  4.  

    So this is something I just ran into. I have a customer requesting basic text. When I enter the test in Graphic Studio (because I'm working on my Mac today), and then I did the same in Corel Draw. I'm getting two completely different dimensions, however, when I'm looking at the text in both programs, the proportions look identical. The kerning and text width seem to be spot on in both programs. There's a huge difference in font point sizes, even though the text are exactly the same measured height. Has anyone else ran into this? my mind in blown :blink:

    I'm a little confused, you say the kerning and text width seem to be spot on and you say the the text are exactly the same height, so what is different?


  5. Step size, traditionally refers to the amount of movement for a single step of a stepper motor. Plotters with solenoid motors really shouldn't use the term step size for anything, it can cause confusion. In this case, the "steps" they are referring to is how the software breaks down curves. Curves are really just a bunch of really short straight lines, the shorter the line the smoother the curve.


  6.  

    . It cuts fine from EasyCut just not in the right scale as i send

    Is that the problem you're trying to fix? You should have just said that from the start, that is a software issue. You just need to adjust the calibration in the software and you'll be good to go. I am not familiar with EasyCut, but Some where there should be a calibration option, or a Steps per Inch setting.


  7. No idea on password, but what setting are you trying to change? Looking at the manual it looks like there are only 3 things, speed, force, and baud rate. Speed and force are just adjusted with the arrow keys while the plotter is offline. Baud rate is adjusted with the settings button.