From b2a29c63497d1421cd7b0579f2e87dd32bb5e6c4 Mon Sep 17 00:00:00 2001 From: Kevin O'Connor Date: Thu, 2 Apr 2020 10:36:03 -0400 Subject: [PATCH] docs: Update BLTouch.md initial tests for users with a regular z endstop Signed-off-by: Kevin O'Connor --- docs/BLTouch.md | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/docs/BLTouch.md b/docs/BLTouch.md index dcbb625b..c639124f 100644 --- a/docs/BLTouch.md +++ b/docs/BLTouch.md @@ -51,7 +51,7 @@ off the printer and check the wiring and configuration. If the above is looking good, it's time to test that the probe responds to commands from the firmware. First run `BLTOUCH_DEBUG COMMAND=pin_down` in your printer terminal. Verify that the pin moves -down, and that the red LED on the probe turns off. If not, check your +down and that the red LED on the probe turns off. If not, check your wiring and configuration again. Next issue a `BLTOUCH_DEBUG COMMAND=pin_up`, verify that the pin moves up, and that the red light turns on again. If it's flashing then there's some problem. @@ -67,16 +67,17 @@ configuration again. At the completion of this test run `BLTOUCH_DEBUG COMMAND=pin_up` and verify that the pin moves up. After completing the BL-Touch command and sensor tests, it is now time -to test homing, but with a twist. Instead of letting the probe pin -touch the print bed, let it touch the nail on your finger. Position -the head far from the bed, issue a `G28`, wait until it starts to move -down, and stop the movement by very gently touching the pin with your -nail. You probably have to do it twice, since the default -configuration makes it probe twice. But be prepared to turn off the -printer, to avoid damage, if it doesn't stop when you touch the pin. +to test probing, but with a twist. Instead of letting the probe pin +touch the print bed, let it touch the nail on your finger. Position +the toolhead far from the bed, issue a `G28` (or `PROBE` if not using +probe:z_virtual_endstop), wait until the toolhead starts to move down, +and stop the movement by very gently touching the pin with your nail. +You may have to do it twice, since the default homing configuration +probes twice. Be prepared to turn off the printer, to avoid damage, if +it doesn't stop when you touch the pin. -If that was successful, do another `G28` but this time let it touch -the bed as it should. +If that was successful, do another `G28` (or `PROBE`) but this time +let it touch the bed as it should. BL-Touch gone bad =================