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bltouch: Update command timing 

Prior to the BLTouch v3, the recommended command times were 700us
(pin_down), 1200us (touch_mode), 1500us (pin_up), 1800us (self_test),
and 2200us (reset).  However, the recommended Marlin timing (via servo
"angles") was 647.111, 1162.667, 1472, 1781.333, and 2193.778us.

As of the BLTouch v3, the recommended times are now 650, 1165, 1475,
1780, and 2190us.  The v3 continues to recommended Marlin timings of
647.111, 1162.667, 1472, 1781.333, and 2193.778us.

Update Klipper to use the new BL-Touch v3 recommended timing.  The new
timings are required for the BL-Touch v3 and they are closer to what
the Marlin firmware has historically used.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-05-20 18:50:56 -04:00
parent 8532e2123e
commit 7702cc2972
1 changed files with 5 additions and 5 deletions
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10
klippy/extras/bltouch.py
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@ -1,13 +1,13 @@
# BLTouch support
#
# Copyright (C) 2018 Kevin O'Connor <kevin@koconnor.net>
# Copyright (C) 2018-2019 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import math, logging
import homing, probe
SIGNAL_PERIOD = 0.025600
MIN_CMD_TIME = 4 * SIGNAL_PERIOD
SIGNAL_PERIOD = 0.020
MIN_CMD_TIME = 5 * SIGNAL_PERIOD
TEST_TIME = 5 * 60.
RETRY_RESET_TIME = 1.
@ -16,8 +16,8 @@ ENDSTOP_SAMPLE_TIME = .000015
ENDSTOP_SAMPLE_COUNT = 4
Commands = {
None: 0.0, 'pin_down': 0.000700, 'touch_mode': 0.001200,
'pin_up': 0.001500, 'self_test': 0.001800, 'reset': 0.002200,
None: 0.0, 'pin_down': 0.000650, 'touch_mode': 0.001165,
'pin_up': 0.001475, 'self_test': 0.001780, 'reset': 0.002190,
}
# BLTouch "endstop" wrapper