Posts made by projectR3D

Project R3D has recently released our new line of Talos printers. The Talos is designed to be a feature-packed large-format printer aimed to be a workhorse for many industries. With build volumes ranging from 600x600x600mm up to 600x1800x600mm you can print full automotive body panels all at once.

Find out more at https://www.projectr3d.com/

IDEX is standard on all Talos units, allowing for several different print configurations. Support removal and post-processing of the part can be a major hassle when working with such large parts, having a dedicated support material allows for effortless removal and minimal cleanup. Speed is always a factor in additive, but with such large build volumes, speed is even more critical. Running a high-detail nozzle for small details or walls and then having a large nozzle for supports and infill can drastically reduce print time.

When it comes to speed, the Talos has it. Rapids in X,U, and Y are limited to 1000mm/sec. The only thing holding you back will be your hotends volumetric flow rate.

We offer the Talos assembled or as sub-assemblies for those who can't fit an assembled unit into their shop.

We offer the Hemera Revo, Bondtech LGX/Mosquito Magnum, and Bondtech LGX/Mosquito Magnum+.

When we set out to design the Talos, we wanted to accomplish a couple of things, we are glad to say we did!

• Duet3 ecosystem of electronics to allow for expansion and upgrades
• Fastest printers in the category
• Feature packed, make competitors options standard in the Talos (IDEX, Linear Rails, Casters)
• Best price in the category
• Robust build quality
• Assembled
• Sub-assembly kit allowing for 2 hour assembly time, rather than 4-7 days with competition
• Highest Quality Components
• Camera assisted calibration
  
  

Response from debug

pi@duet3:~ $ sudo /opt/dsf/bin/DuetControlServer -1 debug
Duet Control Server v3.1.1
Written by Christian Hammacher for Duet3D
Licensed under the terms of the GNU Public License Version 3

[info] Settings loaded
[info] Environment initialized
[info] Connection to Duet established
[info] IPC socket created at /var/run/dsf/dcs.sock

Response from sudo /opt/dsf/bin/DuetWebServer

pi@duet3:~ $ sudo /opt/dsf/bin/DuetWebServer
info: Microsoft.Hosting.Lifetime[0]
      Now listening on: http://[::]:80
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: /home/pi
info: DuetWebServer.Services.ModelObserver[0]
      Connections to DuetControlServer established
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 GET http://192.168.1.123/machine
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'DuetWebServer.Controllers.WebSocketController.Get (DuetWebServer)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[3]
      Route matched with {action = "Get", controller = "WebSocket"}. Executing controller action with signature System.Threading.Tasks.Task Get() on controller DuetWebServer.Controllers.WebSocketController (DuetWebServer).
info: DuetWebServer.Controllers.WebSocketController[0]
      WebSocket connected from ::ffff:192.168.1.114:59415
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/1.1 GET http://192.168.1.123/machine/directory/0:%2Fmacros application/json
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint 'DuetWebServer.Controllers.MachineController.GetFileList (DuetWebServer)'
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[3]
      Route matched with {action = "GetFileList", controller = "Machine"}. Executing controller action with signature System.Threading.Tasks.Task`1[Microsoft.AspNetCore.Mvc.IActionResult] GetFileList(System.String) on controller DuetWebServer.Controllers.MachineController (DuetWebServer).
info: Microsoft.AspNetCore.Mvc.Infrastructure.ContentResultExecutor[1]
      Executing ContentResult with HTTP Response ContentType of application/json
info: Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker[2]
      Executed action DuetWebServer.Controllers.MachineController.GetFileList (DuetWebServer) in 195.8381ms
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint 'DuetWebServer.Controllers.MachineController.GetFileList (DuetWebServer)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished in 300.9561ms 200 application/json

@Phaedrux Debugging has now been setup, would I see the additional info in M122 response?

Upload with DWC. It just happened again

m122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.1.1 running on Duet 3 MB6HC v1.01 or later (SBC mode)
Board ID: 08DJM-956L2-G43S8-6J1FJ-3S46K-9S26D
Used output buffers: 1 of 40 (11 max)
=== RTOS ===
Static ram: 154604
Dynamic ram: 162900 of which 64 recycled
Exception stack ram used: 516
Never used ram: 75132
Tasks: NETWORK(ready,1972) HEAT(blocked,1188) CanReceiv(suspended,3820) CanSender(suspended,1420) CanClock(blocked,1436) TMC(blocked,68) MAIN(running,4928) IDLE(ready,76)
Owned mutexes:
=== Platform ===
Last reset 00:11:33 ago, cause: software
Last software reset at 2020-09-15 05:17, reason: Memory protection fault, spinning module Move, available RAM 75040 bytes (slot 0)
Software reset code 0x4164 HFSR 0x00000000 CFSR 0x00000082 ICSR 0x0444a804 BFAR 0xe4aa804a SP 0x20417ba4 Task MAIN
Stack: 004256fd 00423352 010f0000 00000000 ffffffff 00000000 00000000 00000000 00000000 2042d338 00463e7b 
Error status: 0
MCU temperature: min 51.5, current 51.8, max 52.9
Supply voltage: min 23.8, current 24.2, max 24.5, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.3, current 12.3, max 12.4, under voltage events: 0
Driver 0: standstill, reads 41247, writes 19 timeouts 0, SG min/max 0/181
Driver 1: standstill, reads 41248, writes 19 timeouts 0, SG min/max 0/181
Driver 2: standstill, reads 41248, writes 19 timeouts 0, SG min/max 0/145
Driver 3: standstill, reads 41249, writes 19 timeouts 0, SG min/max 0/147
Driver 4: standstill, reads 41249, writes 19 timeouts 0, SG min/max 0/140
Driver 5: standstill, reads 41255, writes 14 timeouts 0, SG min/max 0/0
Date/time: 2020-09-15 05:28:41
Slowest loop: 5.52ms; fastest: 0.15ms
=== Storage ===
Free file entries: 10
SD card 0 not detected, interface speed: 37.5MBytes/sec
SD card longest read time 0.0ms, write time 0.0ms, max retries 0
=== Move ===
Hiccups: 0(0), FreeDm: 375, MinFreeDm: 373, MaxWait: 620834ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 13, completed moves: 13, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== Heat ===
Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP* is ready with "M122" in state(s) 0
Telnet is idle in state(s) 0
File* is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger* is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon* is idle in state(s) 0 0, running macro
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 0.98ms; fastest: 0.01ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
HTTP sessions: 0 of 8
- Ethernet -
State: disabled
Error counts: 0 0 0 0 0
Socket states: 0 0 0 0 0 0 0 0
=== CAN ===
Messages sent 2778, longest wait 0ms for type 0
=== Linux interface ===
State: 0, failed transfers: 0
Last transfer: 20ms ago
RX/TX seq numbers: 36345/22606
SPI underruns 0, overruns 0
Number of disconnects: 0
Buffer RX/TX: 0/0-0
=== Duet Control Server ===
Duet Control Server v3.1.1
Daemon:
Finishing macro daemon.g, started by system
> Next stack level
Code buffer space: 4096
Configured SPI speed: 8000000 Hz
Full transfers per second: 32.53

Ill give that a try, it only happens with S3D files and only on the duet3. The most common error is the upload and print then getting stuck in the loop, do you have any experience with that?

Pause.g

; pause.g
; called when a print from SD card is paused
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun Feb 02 2020 20:26:36 GMT-0600 (Central Standard Time)
M83            ; relative extruder moves
G1 E-10 F3600  ; retract 10mm of filament
G91            ; relative positioning
G1 Z5 F360     ; lift Z by 5mm
G90            ; absolute positioning
G1 X0 Y0 F6000 ; go to X=0 Y=0

Stop.g

; stop.g
; called when M0 (Stop) is run (e.g. when a print from SD card is cancelled)
;
; generated by RepRapFirmware Configuration Tool v2.1.8 on Sun Feb 02 2020 20:26:37 GMT-0600 (Central Standard Time)

We have been testing a new unit with Duet3 with SBC (Pi3b+), we have run into a couple of errors. The first would be a full system hang after a print cancel and then hitting reprint. Since a print has been canceled the temp is still high but it will never start printing. It will sit at 0.0% and nothing will respond, if you hit a button in the web interface it will just spin. The second more common (only about 5% of the time) issue is a disconnect and restart of the system upon an "Upload and Print" process. So far its mostly been with S3D files.

M122
=== Diagnostics ===
RepRapFirmware for Duet 3 MB6HC version 3.1.1 running on Duet 3 MB6HC v1.01 or later (SBC mode)
Board ID: 08DJM-956L2-G43S8-6J1FJ-3S46K-9S26D
Used output buffers: 1 of 40 (11 max)
=== RTOS ===
Static ram: 154604
Dynamic ram: 162900 of which 64 recycled
Exception stack ram used: 528
Never used ram: 75120
Tasks: NETWORK(ready,1980) HEAT(blocked,1188) CanReceiv(suspended,3820) CanSender(suspended,1432) CanClock(blocked,1436) TMC(blocked,204) MAIN(running,5016) IDLE(ready,76)
Owned mutexes:
=== Platform ===
Last reset 00:05:11 ago, cause: software
Last software reset at 2020-09-15 02:15, reason: Stuck in spin loop, spinning module GCodes, available RAM 74976 bytes (slot 1)
Software reset code 0x4083 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0444a80f BFAR 0x00000000 SP 0x20417b14 Task MAIN
Stack: 00000034 00427e86 010f0000 00000000 40a25c00 42595364 bf8f81ee 42c80001 3d9096e1 00000000 3e1096e1 
Error status: 0
MCU temperature: min 52.8, current 52.8, max 54.4
Supply voltage: min 24.2, current 24.2, max 24.3, under voltage events: 0, over voltage events: 0, power good: yes
12V rail voltage: min 12.3, current 12.4, max 12.4, under voltage events: 0
Driver 0: standstill, reads 10631, writes 17 timeouts 0, SG min/max 0/158
Driver 1: standstill, reads 10632, writes 17 timeouts 0, SG min/max 0/184
Driver 2: standstill, reads 10633, writes 17 timeouts 0, SG min/max 0/145
Driver 3: standstill, reads 10633, writes 17 timeouts 0, SG min/max 0/146
Driver 4: standstill, reads 10634, writes 17 timeouts 0, SG min/max 0/141
Driver 5: standstill, reads 10637, writes 14 timeouts 0, SG min/max 0/0
Date/time: 2020-09-15 02:20:50
Slowest loop: 5.38ms; fastest: 0.15ms
=== Storage ===
Free file entries: 10
SD card 0 not detected, interface speed: 37.5MBytes/sec
SD card longest read time 0.0ms, write time 0.0ms, max retries 0
=== Move ===
Hiccups: 0(0), FreeDm: 375, MinFreeDm: 373, MaxWait: 270570ms
Bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves: 13, completed moves: 13, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== AuxDDARing ===
Scheduled moves: 0, completed moves: 0, StepErrors: 0, LaErrors: 0, Underruns: 0, 0  CDDA state: -1
=== Heat ===
Bed heaters = 0 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
Heater 1 is on, I-accum = 0.0
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP* is ready with "M122" in state(s) 0
Telnet is idle in state(s) 0
File is idle in state(s) 0
USB is idle in state(s) 0
Aux is idle in state(s) 0
Trigger* is idle in state(s) 0
Queue is idle in state(s) 0
LCD is idle in state(s) 0
SBC is idle in state(s) 0
Daemon* is idle in state(s) 0
Aux2 is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 1.10ms; fastest: 0.01ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions Telnet(0), 0 sessions
HTTP sessions: 0 of 8
- Ethernet -
State: disabled
Error counts: 0 0 0 0 0
Socket states: 0 0 0 0 0 0 0 0
=== CAN ===
Messages sent 1247, longest wait 0ms for type 0
=== Linux interface ===
State: 0, failed transfers: 0
Last transfer: 17ms ago
RX/TX seq numbers: 44715/10150
SPI underruns 0, overruns 0
Number of disconnects: 0
Buffer RX/TX: 0/0-0
=== Duet Control Server ===
Duet Control Server v3.1.1
Code buffer space: 4096
Configured SPI speed: 8000000 Hz
Full transfers per second: 32.14

G21						;Work in millimetres
G90						;Send absolute coordinates...
M83						;...but relative extruder moves

; Axis and motor configuration
M569 P0 S1					;Drive 0 X / Rear
M569 P1 S1					;Drive 1 Y / Front
M569 P2 S1					;Drive 2 Z Front Left
M569 P3 S1					;Drive 3 Z Rear Left
M569 P4 S1					;Drive 4 Z Right
M569 P5 S0					;Drive 5 Extruder
M667 S1						;corexy mode

M584 X0 Y1 Z2:3:4 E5			; Map X to drive 0 Y to drive 1, Z to drives 2, 3, 4, and E to drive 5
;Leadscrew locations
M671 X-38:-38:340  Y62.5:247.5:139 S7.5		;X -38, -38, 340

M350 X16 Y16 Z16 E16 I1				;set 16x microstepping for axes with interpolation
M906 X1400 Y1400 Z1200 E1500 I60			;Set motor currents (mA)
M201 X2000 Y2000 Z100 E1500			;Accelerations (mm/s^2)
M203 X24000 Y24000 Z900 E3600			;Maximum speeds (mm/min) was Z1800 tr8*4
M566 X1000 Y1000 Z100 E1500			;Maximum jerk speeds mm/minute E60 Z60
M208 X310 Y300 Z435				;set axis maxima and high homing switch positions (adjust to suit your machine)
M208 X0 Y0 Z-2 S1				;set axis minima and low homing switch positions (adjust to make X=0 and Y=0 the edges of the bed)
;M92 X200 Y200 Z1600 E819.5			;steps/mm
M92 X200 Y200 Z800 E830			;steps/mm 0.9 z


; End Stops
M574 X1 S1! P"io3.in"				;Map the X endstop to io3.in
M574 Y2 S1! P"io1.in"				;May the Y endstop to io1.in

; Thermistors
M308 S0 P"temp0" Y"thermistor" A"bed_heat" T100000 B4240 H0 L0 		;Bed thermistor - duet 3, connected to temp0

M308 S1 P"temp1" Y"thermistor" A"e0_heat" T100000 B4725 C7.06e-8 H0 L0	;duet3 e3d
;M308 S1 P"temp1" Y"thermistor" A"e0_heat" T500000 B4723 C1.196220e-7	;duet3 slice

;Define Heaters
M950 H0 C"out0" T0				;Bed heater is on out0
M950 H1 C"out1" T1				;Hotend heater is on out1

M307 H0 A90.0 C700.0 D10.0 S1.00 B1 		;Keenovo duet 3 configuration
M307 H1 A548.8 C298.6 D4.6 S1.00 B0 		;Hotend  duet 3 configuration

M570 S360					;Hot end may be a little slow to heat up so allow it 180 seconds
M143 S285					;Set max hotend temperature			

; Fans
M950 F0 C"out4"					;Hotend fan on "out4" connector
M106 P0 S255 H1 T50 				;enable thermostatic mode for hotend fan
M950 F1 C"out5"					;Layer fan on "out5" connector
M106 P1 S0 					;Layer Fan
M950 F2 C"out6"					;Layer fan on "out6" connector
M106 P2 S0 					;Layer Fan

; Tool definitions
M563 P0 D0 H1 F1:2                        	;Define tool 0
G10 P0 S0 R0                        		;Set tool 0 operating and standby temperatures

;BLTouch
;M558 P9 C"io7.in" H5 R1 F50 T6000 A5 S0.02 B1	;define the bltouch input on io8.in
;M950 S0 C"!io7.out"				;define the bltouch servo on io8.out"
M558 P5 C"!io7.in" I0 H10 F180 T3600 ; set Z probe type to bltouch and the dive height + speeds
G31 X-10 Y66 Z1.9 P25



M557 X66:250 Y66:250 S184

M501
M140 H0
T0						;select first hot end 

Any help would be greatly appreciated, if you have any questions please let me know

It ended up being a short causing the issue. After a while, the 12v came back which I found weird so I started digging deeper. Moved a wire and it went away again, it ended up shorting to the heater block. The wire was replaced and solved the issues. Long story short, don't get narrow sited.

Bed heater blew the bed heater fuse, replaced the fuse with another 15amp fuse and now none of the axis will move throwing an error stating Vin is out of range. Vin shows 24.1v while the v12 is only showing 0.9v. Is there something else on the board that needs to be gone through?

@bearer ill Take a look thanks!

@Danal I will give it a try, thank you

@bearer all of the images have been between the end of January until now.

The newest images have been the ones with the most issues.

@Danal thanks for the suggestions, the issue with apt-get everything is g32 read outs aren't reported after the system updates to 1.2.4.0. also we are running duetpi which I believe the documentation states that process is unneeded.

Im having similar issues and also homing can be inconsistent where it will hit the endstop and stop but the unit says it didnt home. My units running DSF 1.1.0.5 works well but anything 1.2 seems to mess up

Im having some weird issues with the Duet 3 where homing each axis and home all will work fine on one unit while others it will work 95% of the time if you home each axis individually and fail most of the time if you hit home all. It seems that the only differences is that some units are running DSF versions 1.1.0.5 on the one that is working fine while the others are running 1.2.3.0 and 1.2.4.0 and the one that is working fine has a 3B+ while the others have 3B Pis. All are running the same config and homing files. Also when it fails sometimes the Web interface will just hang, sometimes it homes the first axis but the web interface never acknowledges it triggers and will get stuck as "Busy" and the unit will need to be restarted.

Any ideas would be greatly appreciated, I feel like Im missing something extremely simple

G21						;Work in millimetres
G90						;Send absolute coordinates...
M83						;...but relative extruder moves

; Axis and motor configuration
M569 P0 S1					;Drive 0 X / Rear
M569 P1 S1					;Drive 1 Y / Front
M569 P2 S1					;Drive 2 Z Front Left
M569 P3 S1					;Drive 3 Z Rear Left
M569 P4 S1					;Drive 4 Z Right
M569 P5 S1					;Drive 5 Extruder
M667 S1						;corexy mode

M584 X0 Y1 Z2:3:4 E5			; Map X to drive 0 Y to drive 1, Z to drives 2, 3, 4, and E to drive 5
;Leadscrew locations
M671 X-38:-38:340  Y62.5:247.5:139 S7.5		;X -38, -38, 340

M350 X16 Y16 Z16 E16 I1				;set 16x microstepping for axes with interpolation
M906 X1400 Y1400 Z1200 E1500 I60			;Set motor currents (mA)
M201 X2000 Y2000 Z100 E1500			;Accelerations (mm/s^2)
M203 X24000 Y24000 Z900 E3600			;Maximum speeds (mm/min) 
M566 X1000 Y1000 Z100 E1500			;Maximum jerk speeds mm/minute E60 Z60
M208 X300 Y300 Z400				;set axis maxima and high homing switch positions
M208 X0 Y0 Z0 S1				;set axis minima and low homing switch positions
;M92 X200 Y200 Z1600 E819.5			;steps/mm
M92 X200 Y200 Z800 E830			;steps/mm 0.9 z


; End Stops
M574 X1 S0 P"io3.in"				
M574 Y2 S0 P"io1.in"				

; Thermistors
M308 S0 P"temp0" Y"thermistor" A"bed_heat" T100000 B4240 H0 L0 		;Bed thermistor

M308 S1 P"temp1" Y"thermistor" A"e0_heat" T100000 B4725 C7.06e-8 H0 L0	


;Define Heaters
M950 H0 C"out0" T0				
M950 H1 C"out1" T1				

M307 H0 A90.0 C700.0 D10.0 S1.00 B1 		
M307 H1 A548.8 C298.6 D4.6 S1.00 B0 		

M570 S360					
M143 S285								

; Fans
M950 F0 C"out4"					;Hotend fan on "out4" connector
M106 P0 S255 H1 T50 				;enable thermostatic mode for hotend fan
M950 F1 C"out5"					;Layer fan on "out5" connector
M106 P1 S0 					;Layer Fan
M950 F2 C"out6"					;Layer fan on "out6" connector
M106 P2 S0 					;Layer Fan

; Tool definitions
M563 P0 D0 H1 F1:2                        	;Define tool 0
G10 P0 S0 R0                        		

;BLTouch
;M558 P9 C"io7.in" H5 R1 F50 T6000 A5 S0.02 B1	
;M950 S0 C"!io7.out"				
M950 S0 C"io7.out" 
M558 P9 C"io7.in" H10 F120 T3600 
G31 X-10 Y66 Z3.1 P25 ; 				


M557 X66:250 Y66:250 S92

M501

T0						;select first hot end```

Home All

G91                       ; relative mode
G1 Z5 H2 F400			  ; Move down 5mm in Z 
G1 H1 X-320 Y320 F1200   ; course home X or Y 
G1 H1 X-320               ; course home X	   
G1 H1 Y320               ; course home Y      
G1 X5 Y-5 F1200             ; move away from the endstops
G1 H1 X-10                ; fine home X        
G1 H1 Y10                ; fine home Y        



G90                       ; back to absolute mode

G91
G1 Z5 F200 H2             
G90
G1 X150 Y150 F6000 
G30

Home X

G91
G1 Z5 F200 H2   	
G1 X-320 F3000 H1 	
G1 X5 F600
G1 X-10 H1 			
G1 Z-5 F200 H2 		
G90

Home Y

G91
G1 Z5 F200 H2		
G1 Y320 F3000 H1	
G1 Y-5 F600
G1 Y10 H1			
G1 Z-5 F200 H2		
G90

Home Z

G91
G1 Z5 F800 H2			
G90
G1 X150 Y150 F2400
G30
G1 Z2 F200

If you are running the pi with the gui I suggest just plugging in a monitor keyboard and mouse into the Pi. This way you have the web interface that you can fully demonstrate. Personally I find the Panel useless for the Duet3 and Im looking into HDMI panel replacements.

There absolutely could be to much cooling with pla. With the RailCore printers stock fan, pla speeds should be between 15-30% at 60mm/sec. Anything above that causes issues that present similar to pressure advance tuning issues or z axis issues.

We went with a fan with high output because the RailCore are great at printing high detail at 120mm/sec at 0.02mm layer height. We had to account for most people printing at that speed or higher which is why we went overkill. Before that we were used to 100% for pla.

We use the SELB13-395 from MiSUMi for the RailCore upgrades, they have a light preload which is more than enough for the situation.

Before anything can be verified you must supply us with the pin outs of the stepper motors. Could you provide us with the model number of the stepper?