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Ah, that makes perfect sense. So this unfortunate line...
#define DEFAULT_MAX_FEEDRATE { 500, 500, 150, 45 };
...should be more like...
#define DEFAULT_MAX_FEEDRATE { 500, 500, 2.5, 45 };
Somehow I lost track that the original value in that position was 5!
by
Thinkyhead
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Firmware - mainstream and related support
I just posted a related question at in which I mention that a G28 in the g-code apparently leaves the Z Feedrate set to the HOMING_FEEDRATE, and that it appears as though the DEFAULT_MAX_FEEDRATE is having no effect on this. I attached some g-code to that post which tries to throw off the z axis. In the first 3 exercises the federate is explicitly set to my maximum (120) but the 4th exercise onl
by
Thinkyhead
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Repetier
If you use M119 and see "TRIGGERED" for active endstops and "open" for inactive ones then your hardware is fine, and your Marlin is also happily detecting them, and at that point it should do the right thing, unless settings are funky. Have you tried messing with the various ENDSTOP settings in Configuration.h? What behavior are you seeing now? When an endstop is hit the axis just tries to keep g
by
Thinkyhead
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Firmware - mainstream and related support
I've been tuning a Prusa i3 Mendel (single plate) with Wade & J-head and have reached the point where I'm getting decent prints at slower speeds, but at higher speeds it loses Z steps, especially with retract_lift enabled in Slic3r. Rather than go through a lot of printing to figure out where steps are being lost, I wrote a little PHP script to generate a Z Axis Stress Test. (My latest versio
by
Thinkyhead
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Firmware - mainstream and related support
I've got an ATX power supply with the ATX 5V SBY wired to VCC and ATX ON wired to PS_ON, and it works very nicely. I just add "M80" to my Slic3r start_gcode and "M81" to the end_gcode, so unattended prints can start and stop the power supply to the motors and heaters as-needed. The Arduino/RAMPS is powered by the 5V SBY when nothing else is attached, including the LCD panel, so the ATX doesn't ne
by
Thinkyhead
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RAMPS Electronics
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Pages: 12345