Help with M669 etc

OwenD

I'll ask the dumb question...
There's no chance that your slicer is mirroring the model?

luckyflyer

Ok, when I change Y1 to Y2 everything still homes correctly but when I go to console and give Y a positive 1 MM move (endstop is triggered) nothing happens. If I give Y a negative 1 MM move even though the endstop is triggered Y moves in the Negative direction. That is not right. It's like it thinks that the 0 origin is at the front of the printer.

Later I took this to the next level and loaded a print. The print executed until the gantry was commanded to move forward. Same symptom as above, no movement, endstop activated.

luckyflyer

@OwenD said in Help with M669 etc:

I'll ask the dumb question...
There's no chance that your slicer is mirroring the model?

I'm running s3d and have unchecked flip Y build table axes (I'm aware that there are 2 possible places in S3d that control this feature depending on settings) it had no effect, but I'll try it again just to be sure, I'm fighting a cold and at times a little loopy.

luckyflyer

Flipping Y build table axes in s3d makes no change in the print no matter the setting. It's like the firmware is suppressing the change.

Danal

@luckyflyer said in Help with M669 etc:

Flipping Y build table axes in s3d makes no change in the print no matter the setting. It's like the firmware is suppressing the change.

Compare the gcode files produced.

luckyflyer

dc42 , I have trouble visualizing this statement in my minds eye "The important thing is that viewed from above, +Y is 90deg anticlockwise from +X. Can someone rephrase this or better yet, for us weak minded draw a picture, thanks.

luckyflyer

Got to take about 1 hour break, Downs syndrome son requires we play games on Saturday night.

luckyflyer

@Danal said in Help with M669 etc:

@luckyflyer said in Help with M669 etc:

Flipping Y build table axes in s3d makes no change in the print no matter the setting. It's like the firmware is suppressing the change.

Compare the gcode files produced.

Thats a good idea.

A Former User

@luckyflyer said in Help with M669 etc:

"The important thing is that viewed from above, +Y is 90deg anticlockwise from +X

https://en.wikipedia.org/wiki/Cartesian_coordinate_system#Three_dimensions

and a bit further down https://en.wikipedia.org/wiki/Cartesian_coordinate_system#In_three_dimensions

luckyflyer

Aah yes I get it now, thanks bearer.