End Stops dont do anything ... please help

Hi,

I recently finished assembling a Mendel Max (seems to be V1.5) with Ramps 1.4 and Mega 2560 ... I have connected the end stops; however, they dont do anything. M119 shows L for all and when I manually depress one of them it changes to L however the axis keeps moving.

Another questions is how can I get the system to remember the 0,0,0 that I define using G161 and doesnt reset every time its disconnected and connected. Thank you in advanced.

The simplest way to start your prints from a position other than True Home (0,0,0) is to put something like the following into the start.gcode file (Skeinforge), or whatever the equivalent is for your slicer

G28 X0.0 Y0.0 Z0.0 <Homes the machine
G1 X30.0 Y10.0 Z0.2 <Moves to the desired offset home position
G92 X0 Y0 Z0 E0 <Make the offset home position the new origin for XYZ

Thank you .. seems simple .. do I get the offset values by experimenting ? In other words, how or where is the absolute home defined ?

What is the Gcode to get a reading of your current position?

It's m114

ariasd Wrote:
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> Thank you .. seems simple .. do I get the offset
> values by experimenting ? In other words, how or
> where is the absolute home defined ?



That's what the endstops are for. They're ignored during moves and only used to find zero when homing.

Quote

The simplest way to start your prints from a position other than True Home (0,0,0) is to put something like the following into the start.gcode file (Skeinforge), or whatever the equivalent is for your slicer

G28 X0.0 Y0.0 Z0.0

Generation 7 Electronics	Teacup Firmware	RepRap DIY

ok Thank you for your help so far. I figured something out today. When the limit switch is closed, it takes the software (sending m119) code about 5 seconds to indicated the switch as closed. Any idea why maybe ?