Gcode question

[zoev89 73]

I am using a UM original with a heated bed. It takes some time to heat-up the bed so what I usually do is manually heat the bed with control->temperature->bed to avoid having my nozzle heated up all the time while the bed is warming up. Then I start a print. Being a lazy guy I would like to do this in the startup code. So I enabled the

M190 S{print_bed_temperature} ;Uncomment to add your own bed temperature line

M109 S{print_temperature} ;Uncomment to add your own temperature line

lines in the start code. According to the documentation M190 S code waits for the bed temperature to reach the target temp. But what I see that it did not wait it also started heating up the nozzle while the bed is heating up and is not ready. I added a M0 command and that did seem to fix it like this

M190 S{print_bed_temperature}

M0 ;Pause

M109 S{print_temperature}

 

Actually I expected that the M0 would ask for a conformation from the user but it did not in this case. It does ask for conformation in the 3 point bedleveling procedure that is found on this forum.

So currently with the M0 command I have been able to get the required startup sequence of my machine but actually I don't understand why the M190 command did not wait, and it does wait when I add the M0 command. And why the M0 asks for a conformation or not depended on the code following....

 

[Dim3nsioneer 557]

I cannot confirm this effect. I also have the two lines uncommented and they work as they should.

What Marlin version do you have (Marlinbuilder or self compiled)?

 

[zoev89 73]

Which version that is a good question but how to get that info...

I took it from

http://marlinbuilder.robotfuzz.com/

In may 2014

I can't get info or the version from the controller. The build_summary.txt at that time does not show a version number. There is the hex file but that does no help me much I guess.

I feel so stupid that I don't know hot to get the version number....

I saved the diff files for future reference.

 

[Dim3nsioneer 557]

I would expect it to work. Did you change the M109 param values?

 

[zoev89 73]

When I look at the generated gcode I see that the values are correctly taken over like

M190 S115

M0 ;Pause

M109 S250

I am still looking into the version. Try to connect the machine to the PC again but I am running ubuntu so there are some libusb acces rights to fix before it works I guess. I programmed it at that time on windows xp.....

 

 

[Dim3nsioneer 557]

115°C for the heated bed is not low. I don't know where Marlin has the safety maximum. And I don't know what Marlin does if an external command exceeds this level. It might be worth checking if this causes your issue.

 

[zoev89 73]

True 115 is not low that is why it is taking about 15 minutes. I need to compensate for the 4 mm glas plate and I am printing ABS. Marlin has no issues with this temp I already did 125 for a experiment some time ago.

[zoev89 73]

HA I figured it out. There must have been a error in coping the data to the SD card.... When I have

M190 S115

M109 S250

it correctly waits until the headedbed warms up and only starts heating up the nozzle when the bed is warm.