Geeetech

Hi Guy's and Girl's


My display is showing the target temp okay 220x and bed 58x...
But when actually using pla, the Pla curl and jam in the 2 to one extruder...

Here is my story and where I am baffle!
On the display we see 220...I marked X because when I took a laser pointer temp reader shot I got 107 to 125c around the nozzle block...
What Equal 220F darn 107c...Keep on reading! It is getting more puzzeling!

The bed temp is not right but still not in X degree. I take a laser readout, get 42.2c and a contact probe 43.0c display is 58 whatttt ?
Not in F it would be 109.4F ...So the bed would be in Celsius? Arg!

Both read 16 at rest for a room Temp around 20c...Both sensor are wrong or the GTM 32 is screwed? All new out of the box...

I am waiting for Greetech to respond to me on the next step...Anyone went through this issue before?
Found rather Ironic that a sensor would brake and tell range in Celsius...But Murphy's as to do something...

weird...maybe check out this link for some details, like the hotend and heatbed resistance:
http://www.geeetech.com/forum/viewtopic ... 19&t=17039

After multiple test I am at a dead ends...A clug 0.4mm nozzle now.


So short story, I beleive that reloading the software partially cure my temp proble. I still have a darken f4 thing on my gtm32 board but it seem to work.
I found out that my testing plastic I did receive is way high in required temperature at least 248c before is start to look like fluidic...Start I said..

So to help other with some details That should have learn faster is the pig tail symptom. When the filament get pig tail...I n my case it looked like to issue bad temp and
my ptfe not deep enought in the nozzle assy...
Example of what append to your filament when you have the wrong spacing...like in my case and wrong temp...
I had to dismentle so many time I thought to share the picture to figure how deep ptfe should be...

Follow up...


Now I have found that the display is 26c higher then the nozzle and 30c higher from the bed.
Working with these value in mind and waiting from the replacement soft rod to arrive...
I am able to get some basic result...

My next attemp is making sure the bed sensor under the bed touch properly the platform...
And see if my nozzle sensor would do better with thermal grease to conduct the temp better of the block...

Also I did resolve some time out during process by making modification to the usb advance setting.
Latency 100ms and read write time out 100ms no bug so far appening as they where current...


To follow up...

Hi all

Finally changing the thermistor did correct the differential range in between real and displayed...
I did have to change the conroller for other issue main while , fan stopping on ext ruder etc...
The temp is not perfect but more reasonable range...

Thanks so much stefbois for your very helpful research and reports.
Question: May you recommend the thermometer that you are using to get the temperature in the printer, please?
Thanks so much.
Greetings.

Also wanted to say thanks. I'd been having flow problems too. I disassembled the hotend and pushed the PTFE through until it was flush with the vertical risers before screwing them back in.

My bed also reports temperatures 30 degrees lower than they really are. I'll sort a thermistor at some point but for now I can at least just set it higher...

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