[akhilesh]

Got this working with 7.20 version…

[akhilesh]

Got it to work after complete re wiring…
Now i have another small problem related to finding home.
Have installed limit switch and when i press find home the motors turn till limit switches are activated and after that motor stops there only… No further movements.. Pen is in extreme down of machine…

As per my understanding the pen should go all the way down and post limit switches engagement it should go back to some position around width/2, 200mm from top.

And also in GUI (Markelangelo software) the home position is always shown in bottom of the machine. it is not showing 20cm from top (may be some configuration issues from my side)

My machine dimensions
Width : around 780mm
Height : around 650mm
Timing belt : 800mm
Pully : 40mm with 20 teeth
Stepper rotation : 200/360 degree

[akhilesh]

Also one more observation … when i try to move the X axis stepper in “Drive” Menu both steppers connected to X & Y axis move together (Same speed & Direction). Same happens when i try moving only Y axis stepper (Both motors move). So i though some problem with driver or Mega itself.

I tried flashing Marlin firmware for 3D Printer and in that when i try to move only X axis the motor is moving correctly & independently. So no problem with driver or Mega…

So what is that i am doing wrong in Makelangelo firmware ?? scratching my head all through the day without any solution… Please help

[akhilesh]

Thanks Dan for the revert,

For me also it looked as though both motors were running from same driver but believe me i have two separate drivers (two A4988 on the board of X & Y Axis) and motors are connected to these seperate drivers.

One more thing i forgot to mention was that i do not have limit switches if that has something to do with this issue.

Coming to machine size… actually how do you set machine size i could not find out… my machine width is 800mm & height of 800 mm. if there is any guide to set the size in EEPROM please let me know… Thanks again for the revert

[akhilesh]

Yes… i am able to upload firmware & move motors & Servo using RepRap LCD encoder..

[akhilesh]

Thanks a lot… This solved my problem with Mega+RAMPS &Full Graphic controller

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