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MarlinFirmware / Marlin

Marlin is an optimized firmware for RepRap 3D printers based on the Arduino platform. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.
https://marlinfw.org
GNU General Public License v3.0
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Go below Z0 refuses on delta setup but not prusa style #4302

Closed geekgarage closed 8 years ago

geekgarage commented 8 years ago

Hi,

So i have a prusa style printer and auto bed works great i can go below zero on my Z axis to finetune nozzle height, but the second i use the same firmware (Latest commit dee6322 on 25 Apr) on a delta style printer everything works (auto bed and all) but i cannot go below zero on Z axis or i can't go lower when the sensor activates (IR). I've already disabled software endstops and made sure the pins are correct but it's like it's ignoring the #define FIX_MOUNTED_PROBE #define min_software_endstops false // If true, axis won't move to coordinates less than HOME_POS.

that should deactivate the sensor. but the microsecond the sensor is active the system refuses to go below that point

Whole "Configuration.h" is attached as txt and "configuration_adv.h" is stock as in the example files for generic delta

Configuration.txt

UPDATE: Found that the issue is the Z MIN with the above configuration when the probe is active to probe i M119 is still open but the Z_MIN is active. But by disabling it and switch pin 18 and 32 on ramps 1.4 EFB it still won't go below when the z_min is active even tho the Z_MIN isn't a part of M119 any more

thinkyhead commented 8 years ago

You can make your Z_MIN_POS smaller than zero if you want to regularly go below zero.

jbrazio commented 8 years ago

Closing due to inactivity. Please re-open this issue if still valid.

github-actions[bot] commented 2 years ago

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.