Repetier Host.... If I want to speed up my Eustathios Printing speeds,

3D Printing HercuLien and Eustathios
1

Repetier Host…

If I want to speed up my Eustathios Printing speeds, what should I adjust?

Is anyone printing above 100mm/s on a Eustathios Spider V2?

generated by Slic3r 1.2.9 on Thu Oct 8 11:21:28 2015

avoid_crossing_perimeters = 1
bed_shape = 0x0,285x0,285x285,0x285
bed_temperature = 0
before_layer_gcode =
bottom_solid_layers = 6
bridge_acceleration = 0
bridge_fan_speed = 100
bridge_flow_ratio = 1
bridge_speed = 60
brim_width = 5
complete_objects = 0
cooling = 0
default_acceleration = 0
disable_fan_first_layers = 1
dont_support_bridges = 1
duplicate_distance = 6
end_gcode = M104 S0 ; turn off temperature\nG28 X0 ; home X axis\ng28 y0 ; home y axis\nM84 ; disable motors
external_fill_pattern = rectilinear
external_perimeter_extrusion_width = 0
external_perimeter_speed = 75%
external_perimeters_first = 0
extra_perimeters = 0
extruder_clearance_height = 20
extruder_clearance_radius = 20
extruder_offset = 0x0
extrusion_axis = E
extrusion_multiplier = 0.96
extrusion_width = 0.4445
fan_always_on = 1
fan_below_layer_time = 60
filament_colour = #FFFFFF
filament_diameter = 1.75
fill_angle = 45
fill_density = 30%
fill_pattern = rectilinear
first_layer_acceleration = 0
first_layer_bed_temperature = 0
first_layer_extrusion_width = 200%
first_layer_height = 0.35
first_layer_speed = 30
first_layer_temperature = 215
gap_fill_speed = 20
gcode_arcs = 0
gcode_comments = 0
gcode_flavor = reprap
infill_acceleration = 0
infill_every_layers = 1
infill_extruder = 1
infill_extrusion_width = 0
infill_first = 0
infill_only_where_needed = 0
infill_overlap = 15%
infill_speed = 100
interface_shells = 0
layer_gcode =
layer_height = 0.3
max_fan_speed = 100
max_print_speed = 80
max_volumetric_speed = 0
min_fan_speed = 35
min_print_speed = 20
min_skirt_length = 0
notes =
nozzle_diameter = 0.4
octoprint_apikey =
octoprint_host =
only_retract_when_crossing_perimeters = 1
ooze_prevention = 0
output_filename_format = [input_filename_base].gcode
overhangs = 0
perimeter_acceleration = 0
perimeter_extruder = 1
perimeter_extrusion_width = 0
perimeter_speed = 100
perimeters = 2
post_process =
pressure_advance = 0
raft_layers = 0
resolution = 0
retract_before_travel = 2
retract_layer_change = 1
retract_length = 8
retract_length_toolchange = 0
retract_lift = 0
retract_restart_extra = 0
retract_restart_extra_toolchange = 0
retract_speed = 30
seam_position = aligned
skirt_distance = 0.5
skirt_height = 1
skirts = 3
slowdown_below_layer_time = 20
small_perimeter_speed = 75%
solid_infill_below_area = 20
solid_infill_every_layers = 0
solid_infill_extruder = 1
solid_infill_extrusion_width = 0
solid_infill_speed = 75%
spiral_vase = 0
standby_temperature_delta = -5
start_gcode = G28 X0 Y0 \nG29
support_material = 0
support_material_angle = 45
support_material_contact_distance = 0.2
support_material_enforce_layers = 0
support_material_extruder = 1
support_material_extrusion_width = 0
support_material_interface_extruder = 1
support_material_interface_layers = 0
support_material_interface_spacing = 3
support_material_interface_speed = 100%
support_material_pattern = rectilinear
support_material_spacing = 3
support_material_speed = 60
support_material_threshold = 0
temperature = 215
thin_walls = 1
threads = 4
toolchange_gcode =
top_infill_extrusion_width = 0
top_solid_infill_speed = 30%
top_solid_layers = 6
travel_speed = 130
use_firmware_retraction = 0
use_relative_e_distances = 0
use_volumetric_e = 0
vibration_limit = 0
wipe = 0
xy_size_compensation = 0
z_offset = 0

2

So I tried printing at 150mm/s for Infill and Perimeters, but I don’t think it was turning out well.

Why I can’t post a picture in this thread is beyond me Google +… (rant over)

3

215 might be too cold as you go up to those speeds. The reason is your plastic never actually reaches those temps. Your actual printing plastic temp is a function of Delta T and Delta t (temp difference of the entering plastic and of the hot end metal, and actual dwell time in the hot end).

I have printed as hot as 235C on PLA on a very large print on HercuLien at 200mm/s.

4

@Eclsnowman It did seem like it was having trouble pushing filament and it was slipping so I stopped the job. I might have to try 235C and 150mm/s tomorrow.

Do I need to have more retraction at those faster speeds? I’m running at 8mm now.

5

no, actually at higher speeds you need very little retract because it moves to the new print location so fast.

6

Trying 130mm/s and 235C this morning. What is a realistic number to try to print at on the Eustathios Spider V2?

7

It depends on part geometry, and slicing settings. But I can get 150 regularly if the layer times work out. Also on a side note… Do not use honeycomb infill at these speeds. You will rattle something loose :wink:

8

130mm/s 235C Temperature. Possibly needs some retraction?

9

@bcrazycramer nice. It fun to see the printers moving this fast isn’t it :slight_smile:

Yeah some more retract, and then add some “coast to end” if your slicer gives the option.

10

@Eclsnowman

Does this sound like “coast to end”?

Pressure Advance setting in Slic3r.

When set to a non zero value, this experimental option enables pressure regulation. It’s the K constant for the advanced algorithm that pusshes more or less filament upon speed changes. It’s useful for Bowden-tube extruders. Range 0-10

11

It might be, I haven’t used slicer in a long time.

But essentially coast to end will try to minimize back pressure in the bowden assembly by coasting (not actively extruding) a certain distance at the end of a print move before performing a travel move. I have found it to be very helpful to avoid stringing, but it does take some time to dial in with the rest of your settings to avoid gaps at the end of an extrude path if it is set to high.

12

This is at the 150mm/s 4mm retraction and 235C.

I think I want to take this spool holder and place my spool under the extruder motor. (Technical name?). Seems like it would work better.

I see I need a screw in my fan. When printing at these speeds, you find things that need to be adjusted. :slight_smile:

Also, I really need to get Simplify3D working on my Printrbot and understand how it works. After that I will start using it on my Eustathios Spider V2.

13

@bcrazycramer very nice looking high speed printing. Keep pushing the envelope, that is how things stay fun. I will of course state the obvious, printing at these speeds will wear things out faster. Higher forces, more vibrations, etc.

But keep up the good work.