Hallo! It's been a while since I've used it, but I'm pretty sure it should be doing the pen lifts. The bit that _has_ changed is the pen lift behaviour generally. It looks to me that your lift servo horn is pointing away from the surface entirely - does it move at all?

Quote from mike on May 10, 2013, 05:36
Yes, my servo works fine. I can use it manually or if the controller sends a C13/C14 command. Strange. I will check the controller code...Good to know that it should lift the pen.

Just checked the code of Sandy. And as expected, from a code perspective everything looks fine Herr Doktor 🙂 ! Since my machine is working on a picture right now I have to wait until it finishes. Then I will check why the penlift is not working in my constellation...

Andy, Mike, I've just been having a look at this. Turns out it is to do with the penlift_penup / pendown function being called from within another function. The penlift command has spotted that there are parameters, and thinks they are for it, but of course the parameters belong to the containing function. In this case, "rove_drawNorwegianFromFile".

So that's why it's turning to that weird angle. There's a proper way to fix this, and I'll do that for the next firmware release, but in the meantime, you can get it to behave by adding a line "

noOfParams = 0;

" to the drawNorwegian function code so it looks like:

void rove_drawNorwegianFromFile()
{
  if (useRoveArea)
  {
    // get parameters
    String filename = inParam1;
    int maxAmplitude = multiplier(asInt(inParam2));
    int wavelength = multiplier(asInt(inParam3));
    inNoOfParams = 0;
    ...

Oh right, no it's the arduino firmware code, sorry I didn't actually say that bit!

sn

You would need to edit the code, then compile it, then either upload using the arduino IDE or find where there hex file has been saved (someplace like C:/Users/<you>/AppData/Local/Tmp) if you wanted to use xloader.

The hex file is not recompiled in the arduino source code folder automatically.

The trace image behaviour is correct, it should move to the extent of the finished image, but not drop the pen to make any marks.

sn