Boy oh boy do I feel dumb... My heating issue is resolved! The heat block was screwed flush against the V6 heat sink causing the heat to disperse too quickly. Below is an image of the gap I added and it resolved the issue instantly.

@lb
I have the same motors in a coreXY setup and noticed I was getting unexpected movement, redesigned the carriage 3 times to make it more rigid. I was assuming this was where my movement was coming from. Even with a all aluminum design I was still experiencing these movements. Then I noticed one motor was moving slightly more than the other.

The key for me was to increase the T parameter to T3.5:3.5:6:0

As soon as I did that everything ran smooth as butter, you can barely hear these things running. I am running 128 microstepping on the drives.

This slight movement may be whats throwing off your calculations!

I will double check my exact T config later if you need it, I am going off memory here but I am almost positive these are the amounts I had in. I know I had to increase them before everything ran smooth and accurately

@phaedrux That is what I thought too but its pretty constant 100mms in requested and top speed. Just eye balling the printer compared to my other printers this thing is MOVING! lol.

I am running a few test prints using Cura for slicing. I have the speed in cura set to 60mm/s but when I print I am noticing I am actually running at 100mm/s. Am I missing something or is this normal? I didn't think that my config.g max speed would effect what was actually set via the slicer. Unless of course I tried to run faster than max.

@lb happy it worked for you.

@lb
I have the same motors in a coreXY setup and noticed I was getting unexpected movement, redesigned the carriage 3 times to make it more rigid. I was assuming this was where my movement was coming from. Even with a all aluminum design I was still experiencing these movements. Then I noticed one motor was moving slightly more than the other.

The key for me was to increase the T parameter to T3.5:3.5:6:0

As soon as I did that everything ran smooth as butter, you can barely hear these things running. I am running 128 microstepping on the drives.

This slight movement may be whats throwing off your calculations!

I will double check my exact T config later if you need it, I am going off memory here but I am almost positive these are the amounts I had in. I know I had to increase them before everything ran smooth and accurately

Boy oh boy do I feel dumb... My heating issue is resolved! The heat block was screwed flush against the V6 heat sink causing the heat to disperse too quickly. Below is an image of the gap I added and it resolved the issue instantly.

This is the 24v heater on tuning to 200c. The temp only ever gets to about 130c

This is my config.g for the heaters:

; Heaters
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 X200 ; Configure thermocouple for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C
M305 P2 X201 ; Configure thermocouple for heater 2
M143 H2 S280 ; Set temperature limit for heater 2 to 280C

I will get the screen shot tonight, as I am at work.

I tried 200c for auto tune, and tried something I knew I could hit (100c). Even after that completed I am unable to rise above 120 - 140c. The heater hits 120c fairly quick, I'd say no more than 20 seconds or so. I did check voltage when it begins to level off and it is still at 24v.

So I have the Duet 2 Ethernet with the newest firmware install (not the beta). I also have the daughter board for 2 PT100 sensors. Both of the sensors read 17.5c - 18.5c while offline, I have also checked the daughter board itself by placing a 100ohm resistor in place of the sensor, it reads 0.4c. I think that the sensors and daughter board are fine, however when I try to heat the hotends they both reach about 120c quickly and then level off and fail auto tune or just reaching desired temp.

I have placed the heater block power directly to the 24v power supply and watched the temp ready to shut it off it the temp went astray, but the results are the same.

I am wondering has anyone else had heater blocks heat partially and then level off under no control. The heaters are reading 14.4ohms so they are definitely 24v heats.

I am just puzzled that an entire batch of 5 can be acting in this manor.