Extruder heating issues...

OK well I recent got a new robo3d r1 with autoleveling last week every thing work but I have run into an issue...

The hot end heat up but not like its supposed to. Basically when i ran it in repeiter hot I would set my target temp (like say 210) and let it run, the extruder would heat up for a few second then turn off and i would get an "echo:heating failed" so I would turn it back on and the same thing would happen run for a few second then turn off. I noticed that if I step up the target temperature to about 10 degree from the actual temperature I could eventually reach my target temperature. SO far this is really a nnoying as I can't always sit at my desk an watch the robo heat up...

any help would be appreciated...

 

Hmm can you take a screenshot of the terminal log? I wonder if it's a thermistor error.

 

Here I kept trying to turn it back on but it still turned itself off.

 

Does the same thing in matter control too.

 

Can you download matter control and try from there?

 

Yes I have updated both the firmware and matter control, this happens on two different computers. And both in the matter control and in Repieter host. I don't know if its a g-code issue as I am not even running a print when it happens had figured it was a firmware issue but not sure where to look.
G-code start:
G28 ; home all axes
G1 Z5 F5000 ; lift nozzle
M109 S[temperature] ; set the extruder temp and wait
M565 Z-.8 ; Set the probe offset
G29 ; probe bed

 

It might be an issue with the system putting your USB ports to sleep. Have you verified that isn't occuring?

Also you don't want to use Z-probe offset. That's how far the probe is from the nozzle. When your nozzles the probe your offset is 0.

What you want is to define a new Z0

 

I turned that setting off.

 

Could be the signs of a failed mosfet, any time you remember shocking anything?

 

No, I only noticed this the second day of having it.

 

Something odd I have noticed is that from a cold start it actually heats up without this issue. Very perplexing...

 

OK I did a roll back and re-update of the firmware seems to be fixed.

 

Can do, also a question I have been meaning to ask...

Is there some way to pull the current firmware of the printer itself or do I have to find an outside source? I just installed an E3D and I was looking at changing the thermistor.

 

Here's the latest firmware I got from Jerry: https://www.dropbox.com/s/9ko8nwc5j71lstq/Auto_Level_5_29.zip