Posts made by omar221

@phaedrux I will thanks, hope it can help.

@phaedrux yes but how can it be controlled by the duet ? that's the problem that i have right now, how can i controlle it by the duet, i think it needs to know where it's going then orient the axis

Hello everyone, i have this idea of making rugs using a Corexy machine that uses a duet 2 wifi, the idea is to use a tufting gun instead of the nozzle so it can move in 3 direction X Y and Z, the only problem that i have right now is that the tufting gun need to be oriented in the direction that the carriage is going for example if i wanted to make a square the tufting gun need to turn forward then turn to the right then turn backward and finally to the left. i had this idea of using rotary encoders that are connected to an arduino board that control a stepper moteur that turns the tufting gun, the idea is that the encoders will read the rotation of the two steppers on the corexy the orient the tufting gun in the right direction , i don't know if it will work or not, and there's another idea that the motherboard of the corexy will directly rotate the tufting gun without any need of rotary encoders by extracting the x and y coordinates directly from the file. I hope this make sens, i explained it the best i could and hope someone can help.

@phaedrux Finally found the solution if somebody have the problem
The surface of the 5 mm nozle is 2.5 x 2.5 x 3.14 ( Pi ) = 19 mm2 ( roughly )
Surface of the piston is 35 x 35 x 3.14 = 3846 mm2 ( roughly )
So one mm movement of the piston will give 3846 / 19 = 200 mm length output ( roughly again )
the the stepper dosen't have to move that far

@phaedrux I can change the current and the pulse/rev
but i think the problem is that the step/mm is too high because i'm using a wormgear
like i said i can get the step/mm right it will be 280000 step/mm but i won't be able to change the speed

@dc42 I think i found the solution i've set the step/mm to 80 the stepper work but there's a small problem when i extrude 10 mm i get less than that, so i need to extrude 400 mm to get 10 mm
is there any parameters to change like an extruder factor or a macro or something like that because i can't change the step/mm it will be too high because i'm using a wormgear reducer

thank you for your help

@dc42 yes it has i tried all of them from 200 to 2560 pulse/rev with no luck

@dc42 i've determined the steps/mm value by multiplying the old steps/mm by 10 and divided it by the amount it extruder and when i tested it when i extrude 10mm i get 10 mm
if i set it to lower i won't get the same result ,
with x256 Microstepping set in the firmware the lower i can get the driver is 800 pulse/rev and i still get the same speed for 60mm/s and 1mm/s

@omar221 the probem is from the steps/mm when i set it to 500 instead of 128105,58 it works (with 128105,58 steps/mm when i extrude 10 mm i get 10 mm, i think the number is this big because i'm using a 30 to 1 reducer and 1mm pitch screw))

@phaedrux I've determined them randomly i didn't find how and i'll try to remove the space between the t and the numbers

M122
=== Diagnostics ===
RepRapFirmware for Duet 2 WiFi/Ethernet version 3.2.2 running on Duet WiFi 1.02 or later
Board ID: 0JD0M-9P6B2-NJ4S8-6JTD0-3SJ6S-TA46J
Used output buffers: 3 of 24 (12 max)
=== RTOS ===
Static ram: 23460
Dynamic ram: 72952 of which 40 recycled
Never used RAM 15628, free system stack 191 words
Tasks: NETWORK(ready,193) HEAT(blocked,366) MAIN(running,451) IDLE(ready,20)
Owned mutexes: WiFi(NETWORK)
=== Platform ===
Last reset 00:02:40 ago, cause: power up
Last software reset at 2021-04-22 22:58, reason: User, GCodes spinning, available RAM 15628, slot 1
Software reset code 0x0003 HFSR 0x00000000 CFSR 0x00000000 ICSR 0x0041f000 BFAR 0xe000ed38 SP 0x00000000 Task MAIN Freestk 0 n/a
Error status: 0x00
Aux0 errors 0,0,0
MCU temperature: min 26.2, current 31.2, max 31.7
Supply voltage: min 12.0, current 12.1, max 12.3, under voltage events: 0, over voltage events: 0, power good: yes
Driver 0: position 0, standstill, SG min/max not available
Driver 1: position 0, standstill, SG min/max not available
Driver 2: position 0, standstill, SG min/max not available
Driver 3: position 0, standstill, SG min/max not available
Driver 4: position 0, standstill, SG min/max not available
Driver 5: position 0
Driver 6: position 0
Driver 7: position 0
Driver 8: position 0
Driver 9: position 0
Driver 10: position 0
Driver 11: position 0
Date/time: 2021-04-23 13:23:30
Cache data hit count 194665664
Slowest loop: 8.26ms; fastest: 0.21ms
I2C nak errors 0, send timeouts 0, receive timeouts 0, finishTimeouts 0, resets 0
=== Storage ===
Free file entries: 10
SD card 0 detected, interface speed: 20.0MBytes/sec
SD card longest read time 4.1ms, write time 0.0ms, max retries 0
=== Move ===
DMs created 83, maxWait 0ms, bed compensation in use: none, comp offset 0.000
=== MainDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== AuxDDARing ===
Scheduled moves 0, completed moves 0, hiccups 0, stepErrors 0, LaErrors 0, Underruns [0, 0, 0], CDDA state -1
=== Heat ===
Bed heaters = -1 -1 -1 -1, chamberHeaters = -1 -1 -1 -1
=== GCodes ===
Segments left: 0
Movement lock held by null
HTTP is idle 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
Daemon is idle in state(s) 0
Autopause is idle in state(s) 0
Code queue is empty.
=== Network ===
Slowest loop: 15.64ms; fastest: 0.00ms
Responder states: HTTP(0) HTTP(0) HTTP(0) HTTP(0) FTP(0) Telnet(0), 0 sessions
HTTP sessions: 1 of 8

• WiFi -
  Network state is active
  WiFi module is connected to access point
  Failed messages: pending 0, notready 0, noresp 0
  WiFi firmware version 1.25
  WiFi MAC address f4:cf:a2:e2:3c:d7
  WiFi Vcc 3.36, reset reason Turned on by main processor
  WiFi flash size 4194304, free heap 27144
  WiFi IP address 192.168.137.126
  WiFi signal strength -44dBm, mode 802.11n, reconnections 0, sleep mode modem
  Clock register 00002002
  Socket states: 0 0 0 0 0 0 0 0

M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled
Microstepping - X:16(on), Y:16(on), Z:16(on), E:16(on):16(on)
Tool 0 offsets: X0.00 Y0.00 Z0.00
Tool 1 offsets: X0.00 Y0.00 Z0.00

Hello everybody hope everyone is donig ok, so recently i've bought a duet 2 wifi and i'm really happy with it but i'm a newbie and there still alot of things to learn. So i'm having this really weird problem, i'm building a ram extruder to extruder clay it uses

nema 23 stepper (4.2A), R60 microstep driver, 30:1 reducer and for power 'm using a 48V 5A power supply for the driver and 12v 16A ps for the board (duet 2 wifi)

i'm setting the driver for 6400 steps/mm and 4.3 peak current (stepper uses 4.2A)

I have two problems : first one is i cant get the stepper to turn any faster i tried all the feedrate from 1 to 60 mm/s no luck always turn in the same speed

and my second problem is i can't set the driver for lower steps (no lower than 6400) or the stepper will make noise and won't move

driver wiring
ENA - goes to E2_EN on the header
ENA + goes to 3.3v on the header
DIR - goes to ground
DIR + goes to E2_DIR on the header
PUL - goes to ground
PUL + goes to E2_STEP on the header

here's a copy of config.g file you'll notice that i've mapped E2 in place of the E1 extruder tweaked other parameters

; Drives 
M569 P0 S1 ; physical drive 0 goes forwards 
M569 P1 S1 ; physical drive 1 goes forwards 
M569 P2 S1 ; physical drive 2 goes forwards 
M569 P3 S1 ; physical drive 3 goes forwards 
M569 P4 S1 ; physical drive 4 goes forwards 
M569 P5 S0 R1 T 5:5:5:5 
M584 X0 Y1 Z2 E3:5 ; set drive mapping 
M350 1 I0 ; configure microstepping without interpolation 
M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation 
M92 X80.00 Y80.00 Z400.00 E420.00:128105,58 ; set steps per mm 
M566 X900.00 Y900.00 Z60.00 E120.00:5000 ; set maximum instantaneous speed changes (mm/min) 
M203 X6000.00 Y6000.00 Z180.00 E1200.00:20000 ; set maximum speeds (mm/min) 
M201 X500.00 Y500.00 Z20.00 E250.00:10000 ; set accelerations (mm/s^2) 
M906 X800 Y800 Z800 E800:1000 I30 ; set motor currents (mA) and motor idle factor in per cent 
M84 S30!

175853339_360363042066735_7831179293833897442_n.jpg