I’ve put together an MPCNC as a stepping stone to a lowrider, got carried away a little so its a 1.6mx1.6m work surface.
Currently though I’m having a reoccurring issue with the RAMPs resetting itself partway through carving sessions. Have rerun the same project several times and the restart is occurring at same place each time. This is making me think something in the gcode is triggering it rather than heat/power issues or the like. Cant capture exactly which line though, when it resets a yellow light blinks briefly on the ramps board then the display reset showing XYZ as 0,0,0 and waiting for me to do something.
Am working in ESTLCAM, and have recompiled in there several times as well so doesn’t appear to be a once off. I’m using what I believe are pretty conservative travel speeds for everything, am still in process of dialling in, and I’m pretty sure I’ve followed the ESTLCAM setup tutorial, although some of the screens in the program do differ from the screenshots.
Going through the forums the closest match I can find is the z-axis speed issue, I’ve attached my gcode, the fastest rate of travel I can find in there is F2100 but that’s for an x-y fast travel I believe. The Z movements on their own seem to be at F480, although I have noticed the combination movements in XYZ appear to be at 600.
That said as I typed that I noticed this:
G00 X211.1080 Y90.6715 Z2.0000 F2100 S24000
G01 X211.1080 Y90.6715 Z-12.0000 F600 S24000
Which the second line seems (I’m not super adept at reading gcode) to indicate it was a long z movement at an F600 feed rate. Would this be my problem, and if it is, can anyone give insight as to why ESTLCAM is writing it like this? Have attached screenshot of all relevant feed rates I think, My rapid on Z is 480 as per tutorial, plunge is a sedate 3mm/s but for some reason that Z movement is happening at what I think is the XY speed of F600…
Apologies for long post, first time posting about the build and asking a CNC type question so trying to make sure there’s a enough info for a diagnosis.