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bkubicek / Marlin

Reprap FW optimized for gen6
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Homing Problem #32

Closed tatoogoo closed 12 years ago

tatoogoo commented 12 years ago

Hi, I have set up Marlin as the firmware on my new Prusa Mendel. Driving from a Macbook Pro via ReplicatorG and using an Arduino 1280 Mega + RAMPS 1.2. I seem to have an issue with homing. I have noticed that, when I use a script saying 'G1 X-300 Y-300 F300' to home the X and Y axes, whichever limit switch trips first ends the command. i.e. if X reaches its limit switch while Y is only half way there, both axes will stop and do the 'back off and return to switch' where they are - with X on its switch but Y some way away. Is this a problem with the Marlin firmware?

tatoogoo commented 12 years ago

Ok, I've decided that this is a wetware fault on my part and I've now understood what is happening. thanks.

ErikZalm commented 12 years ago

Hello,

For homing you can use G28 X Y Z If you hit an endstop with normal moves it is an error. The firmware stays safe by stopping the current movement.

Best regards,

Erik van der Zalm On Nov 11, 2011, at 4:59 PM, tatoogoo wrote:

Hi, I have set up Marlin as the firmware on my new Prusa Mendel. Driving from a Macbook Pro via ReplicatorG and using an Arduino 1280 Mega + RAMPS 1.2. I seem to have an issue with homing. I have noticed that, when I use a script saying 'G1 X-300 Y-300 F300' to home the X and Y axes, whichever limit switch trips first ends the command. i.e. if X reaches its limit switch while Y is only half way there, both axes will stop and do the 'back off and return to switch' where they are - with X on its switch but Y some way away. Is this a problem with the Marlin firmware?

Reply to this email directly or view it on GitHub: https://github.com/bkubicek/Marlin/issues/32