big box madness
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@magdi right i have made stuff do things.
problem now is when i press to 'home y' it homes y a little and also homes x.
so both axis move not just one. But then they also dont move all of the way to homing. hopefully that makes sense. -
@magdi said in big box madness:
also i have an E3d hot end and am a bit confused about using the pt1000 amps? ive connected them currently straight to the duet but temps are like 2000c.
do you mean pt100?
did you configure the m305 correctly?
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@veti yes pt100 i think.
heres what i have atm but in all honesty im not sure what to configure here.M305 P0 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 0
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M305 P1 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C
M305 P2 T100000 B4138 R4700 ; Set thermistor + ADC parameters for heater 2
M143 H2 S280 ; Set temperature limit for heater 2 to 280C -
none of those are for pt100 or pt1000 thermistors
check the configurator for the sensor channel to set it correctly
https://configurator.reprapfirmware.org/Heaters -
@veti cheers for the help, i have changed to the pt100, but still have the same issue. where should i then pin the two wires into the board,
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to the external RTD interface board
https://duet3d.dozuki.com/Wiki/Connecting_PT100_temperature_sensors
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@veti i have tried it and still cant connect the bloody thing. so ive found the daugherboard connection point on the duet. that has 10 pins. i only have 4 wires (dual extruders' with two sets of black and red wires connected together) I just dont know where to put the bloody things. the images on the page you supplied are not very helpful and i cant crack the schematic. i think im just being stupid.
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@magdi Do you have a PT100 daughterboard?
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@phaedrux i have a pt100 board but it came with my e3d v6 not the same as the duet one.
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@magdi So you got this? https://e3d-online.com/pt100-amplifier-board
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@phaedrux yep two of those badboys,
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Alright, sorry to say, but I don't think that will work. You'll need the daughterboard.
https://e3d-online.dozuki.com/Wiki/E3D_PT100_Amplifier_Documentation
https://e3d-online.dozuki.com/Wiki/Temperature_Sensor_Documentation#Section_PT100 -
@phaedrux right is there not way just just bypass the pt100 and just connect the thermistor to the duet board?
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Well if the sensor is a PT100 sensor, then no, it needs the daughterboard to interface with the duet. If you have a seperate regular thermistor, then yes, it could be connected to the thermistor input.
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@phaedrux i have a separate thermistor sorry i should of said that, the thermistor fist into the pt100 but i dont understand why i cant just put it in the motherboard. temps are still wrong when i do that
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Here's how you connect a regular thermistor.
https://duet3d.dozuki.com/Wiki/Connecting_thermistors_or_PT1000_temperature_sensors
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@phaedrux thanks for the help as always. have just done it. temps are now ~280 so we we need another 90%hit! print head is stone cold.
M305 P0 R4700 T100000 B3950 (for the bed WORKS!)
M305 P1 R4700 T100000 B4725 C0.0000000706 (HOT END NOT WORKS) -
Is this an e3d thermistor?do you know the values to use for it?
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@phaedrux yes used the ones as advised on the wiki
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no you connected a pt100 and configure a ATC Semitec 104GT-2. that does not work.
you need to get a ATC Semitec 104GT-2 or get the pt100 daugther board