Posts made by davidvh86

@oozeBot
IS that a core xy printer?

I found the problem, the brass insert failed for the extruder, so the arm wasn't holding tension.

@sebkritikel said in using mosquito hotend in heated chamber:

o you also have a heated build plate (or does the build plate drive the chamber temperature)? What material at what temperature?
Stock fan or other fan?

yea stock fan with an independent chamber heater and bed.
Heated chamber at 60 c for abs 250c hotend. heated chamber at 30c and 240 hotend for petg.

@whopping-pochard
started at 1 mm went to .9 at 30mms

Anyone using a mosquito hot end in a heated chamber with air cooling, im getting clogs and under extrusion about 3/4 the way through a benchy test prints. The only material that prints without an issue is polymaker polycarbonate, probably due to its high glass transition temp.

yes i am. so would i replace h# with s3

Just trying to setup a thermostatic fan for my duet board cooling using a thermistor on e0temp . Whats tripping me up is would i need to create a new heater or can i just assign a sensor number? im using a thermocouple in place of my old e0 thermistor.

sample of what im trying put in my config
Heaters;
M308 S3 P"e0temp" Y"thermistor" T100000 B4138 ; configure sensor 3 as thermistor for board temp

;fans

M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
M106 P1 S1 H# T50 ; set fan 1 value. Thermostatic control is turned on

Hes a copy of my config, fan2 thermostic control is currently off but the plan is to get it to turn on when e0 temp is above 50c

; Heaters
M308 S0 P"bedtemp" Y"thermistor" T100000 B4138 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 B1 S1.00 ; enable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S115 ; set temperature limit for heater 0 to 115C
M308 S1 P"spi.cs1" Y"rtd-max31865" ; configure sensor 1 as thermocouple via CS pin spi.cs1
M950 H1 C"e0heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 B0 S1.00 ; disable bang-bang mode for heater and set PWM limit
M308 S2 P"e1temp" Y"thermistor" T100000 B4138 ; configure sensor 2 as thermistor on pin e1temp
M950 H2 C"e1heat" T2 ; create chamber heater output on e1heat and map it to sensor 2
M307 H2 B1 S1.00 ; enable bang-bang mode for the chamber heater and set PWM limit
M141 H2 ; map chamber to heater 2
M143 H2 S75 ; set temperature limit for Chamber to 75C

; Fans
M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off
M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on
M950 F2 C"fan2" Q500 ; create fan 2 on pin fan2 and set its frequency
M106 P2 S0 H-1 ; set fan 2 value. Thermostatic control is turned off

https://www.dbk-group.com/us/dbk-solutions/industrial-thermal-management/enclosures/heating/fan-heaters/cirrus-series/cirrus-60/189/cirrus-60.html

Thats what i use for my chamber, it runs on 110 with a 24v fan. they also have larger units available.

I got a Optocoupler Relay that has the has a separate power and signal input. hopefully it triggers properly.

@bearer
well thats gonna be an issue lol. So it only has approx 2 ma of current?

@dc42
awesome thanks for your help.

@dc42

So no need for an m307

M950 F3 C"heater4" Q500

So would putting this code turn heater 4 pin into a fan?

would i need to put use M307 H4 A-1 C-1 D-1 to make heater 4 pin available first then reassign it to a fan? sorry this is all very new to me.

Is there any way to use the pins on the expansion header to control a 3 volt relay without using an expansion board. I basically need a fan to turn on and off it doesnt need pwm. If it is possible is there an ideal pin to use ?

@Phaedrux

sweet thanks examples are a huge help. I appreciate all your help btw, You made this project go a lot smoother, probably would have taken twice as long to finish lol.

@Phaedrux said in Emergencyish stop:

The firmware finishes any moves left in its buffer, then it executes the macro file cancel.g if present, if the axes are homed and if a print is being cancelled. Otherwise it attempts to run sleep.g if present before all motors and heaters are turned off. It can still be sent G and M codes, the first of which will wake it up again. See also M0, M112.
If Marlin is emulated in RepRapFirmware, this does the same as M25 if the code was read from a serial or Telnet connection, else the macro file sleep.g is run before all heaters and drives are turned off.

sorry im still fairly new to duet, what happens if a cancel.g or sleep.g are not present, and if they were what would they contain, like a list of my own gcode after the stop was triggered, such and shutting off the hotend, chamber since only the moves would be canceled ?

@Phaedrux
yea mainly cancel. basically if i have a bad first layer i just want it to cancel the print and put some gcode to lower the z axis.

Just wondering if theirs any g code that can simply cancel the print. I know m112 rests the board but i wanted something just stopping a failed print.

thanks

Worked thanks guys

@bearer said in Cant get external trigger workin:

ah, i think you either need to use J0 or P1 to refer to the same pin in both M950 and M581 respectively.

k thanks guys ill try it out