Commit Graph

66 Commits

Author SHA1 Message Date
Kevin O'Connor 6a53eaefc0 extruder: Allow configuration of pressure advance lookahead time
Instead of defaulting the pressure advance lookahead time to be the
same as the pressure_advance variable, allow it to be configured.
Default the new config setting (pressure_advance_lookahead_time) to
10ms.

Also, make the setting more accurate if a future move is accelerating
in the middle of the lookahead window.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2017-02-22 15:20:22 -05:00
Kevin O'Connor c24b7a7ef9 toolhead: Introduce "smoothed" acceleration during lookahead
Update the lookahead code to track both normal toolhead acceleration
as well as a pseudo acceleration to the point of deceleration.  This
reduces the top speed of small zig-zag moves and it reduces printer
vibration during these moves.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2017-02-06 12:17:50 -05:00
Kevin O'Connor c87c090264 extruder: Calculate sane defaults for extrude only velocity and accel
Instead of requiring the user enter velocity and accel parameters for
extrude only moves, calculate sane defaults from the printer's maximum
velocity and accel.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2017-01-03 18:18:30 -05:00
Kevin O'Connor b26922978a extruder: Do sanity checks on extrusion rates
Add a run-time check to ensure the incoming g-code doesn't have a
ridiculously large e move.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2017-01-03 18:17:43 -05:00
Kevin O'Connor 5a5bd2596a extruder: Add nozzle and filament diameter config settings
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2017-01-03 18:12:51 -05:00
Kevin O'Connor 38ca051381 config: Update example config files to be more clear on default values
Be more clear on which parameters have defaults and which parameters
must be specified in the config.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2017-01-02 13:22:20 -05:00
Kevin O'Connor c49d3fdb17 toolhead: Specify maximum acceleration and velocity in toolhead class
Change the config file so the maximum accel and velocity are specified
in the "printer" section instead of the individual "stepper" sections.
The underlying code limits the velocity and accel of the toolhead
relative to the print object, so it makes sense to configure the
system that was as well.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-12-01 18:17:54 -05:00
Kevin O'Connor 941427554a delta: Initial support for linear delta kinematics
This adds support for delta based robots.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-11-14 12:35:36 -05:00
Kevin O'Connor afecf7ce36 stepper: Default to a high direction pin meaning positive direction
Invert the default meaning of the stepper direction pin.  Instead of
treating a low value as position motion, treat a high value as
positive motion.  This matches what other firmwares do, and it matches
what common stepper motor drivers document.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-11-08 10:39:32 -05:00
Kevin O'Connor 9faa0fbd25 extruder: Support a minimum extrude temperature
Allow the config file to specify the minimum temperature for the
extruder and check for that temperature prior to moving the extruder
motor.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-09-30 21:36:51 -04:00
Kevin O'Connor b53da365a1 cartesian: Enforce endstop min and max boundaries
Verify that each move command is within range of the configured
minimum and maximum for each axis.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-09-30 21:36:51 -04:00
Kevin O'Connor 9ff5600421 docs: Clarification of some installation and config steps
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-09-15 12:19:30 -04:00
Kevin O'Connor 654546e338 stepper: Support stepper phase adjustments when homing
Add support for enhancing the precision of endstop switches by also
inspecting the phase of the stepper motor when the endstop triggers.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-07-28 11:22:28 -04:00
Kevin O'Connor dc37a07a8e extruder: Add support for "pressure advance" on extrusion
Add a config option to define an amount of additional filament to feed
into the extruder during acceleration and deceleration of the
extruder.  This can help ensure plastic is deposited in the correct
places during a print.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-07-25 21:57:23 -04:00
Kevin O'Connor af99ab1645 extruder: Create a new class and python file to track the printer extruder
Create a new python file (extruder.py) to control the extruder heater
and stepper motors.  This separates the extruder control logic from
the cartesian robot code - making it easier to customize both the
kinematic control of the robot as well as the extruder.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-07-10 22:49:02 -04:00
Kevin O'Connor f582a36e4d Initial commit of source code.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
2016-05-25 11:37:40 -04:00