josh
/
Prusa-Firmware
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Allow tweaking try-unload feedrates 

It looks like MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE can get much higher that the original 20mm/s.
50mm/s is the default now, can be tweaked further.
This commit is contained in:
D.R.racer 2022-12-22 12:31:15 +01:00 committed by DRracer
parent c5d2aedfe4
commit b2b7990cfc
2 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Firmware/mmu2.cpp
View File

@ -250,9 +250,9 @@ bool MMU2::VerifyFilamentEnteredPTFE()
// MMU has finished its load, push the filament further by some defined constant length
// If the filament sensor reads 0 at any moment, then report FAILURE
current_position[E_AXIS] += MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH - (logic.ExtraLoadDistance() - MMU2_FILAMENT_SENSOR_POSITION);
plan_buffer_line_curposXYZE(MMU2_LOAD_TO_NOZZLE_FEED_RATE);
plan_buffer_line_curposXYZE(MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE);
current_position[E_AXIS] -= (MMU2_EXTRUDER_PTFE_LENGTH + MMU2_EXTRUDER_HEATBREAK_LENGTH - (logic.ExtraLoadDistance() - MMU2_FILAMENT_SENSOR_POSITION));
plan_buffer_line_curposXYZE(MMU2_LOAD_TO_NOZZLE_FEED_RATE);
plan_buffer_line_curposXYZE(MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE);
while(blocks_queued())
{

2
Firmware/mmu2/variants/config_MMU2S.h
View File

@ -33,6 +33,8 @@ static constexpr float MMU2_EXTRUDER_HEATBREAK_LENGTH = 17.7f; // mm
static constexpr float MMU2_LOAD_TO_NOZZLE_FEED_RATE = 20.0F; // mm/s
static constexpr float MMU2_UNLOAD_TO_FINDA_FEED_RATE = 120.0F; // mm/s
static constexpr float MMU2_VERIFY_LOAD_TO_NOZZLE_FEED_RATE = 50.0F; // mm/s
// The first the MMU does is initialise its axis. Meanwhile the E-motor will unload 20mm of filament in approx. 1 second.
static constexpr float MMU2_RETRY_UNLOAD_TO_FINDA_LENGTH = 80.0f; // mm
static constexpr float MMU2_RETRY_UNLOAD_TO_FINDA_FEED_RATE = 80.0f; // mm/s