Prusa-firmware: Temperature tower function in firmware
It would be very handy to have a built-in function in the firmware for "temperature tower" or similar for finding the best temperatures. This would simplify a lot for all users since a temperature tower is a bit awkward to produce without more or less complicated tweaking using the slicer.
hanpal
All 10 comments
Might be better to implement it in Slic3r, so it can generate it using the different settings for printer, filament ect. - and it wouldn't add any more code to the firmware, which is already reaching the space limit.
GurliGebis
on 2 May 2018
And in Slic3r is everything present to do it easily already (temp change at certain layer heights). So someone who bothers for a perfect temp will have a straight forward way to do it already?!
stahlfabrik
on 2 May 2018
Yes you can do it but it would simplify the task a lot if this was built-in in firmware. Load new filament, adjust min max temp and height steps if needed. Press OK and it runs without having to use a slicer. If similar operation was included in Slic3r, fine, would still be easier from the printer.
hanpal
on 2 May 2018
Like GuliGebis said: there is no memory left to spare AFAIK - and there are many other things that need work.:-)
stahlfabrik
on 2 May 2018
@stahlfabrik
And in Slic3r is everything present to do it easily already (temp change at certain layer heights). So someone who bothers for a perfect temp will have a straight forward way to do it already?!
I could not find how to easily do it slic3r?? Cant "find temp change at certain layer heights" setting??
mylife4aiurr
on 4 May 2018
@mylife4aiurr
Identify the Z height you need to change temperatures and add this Gcode to change temps on certain layers. Change the z==# to the z height of each layer where you want a temp switch. This will work in any slicer on layer change gcode section.
Paste G-code into Slic3r, Printer Settings, Custom G-code, After Layer change G-Code.
{if layer_z==10}M104 S190{endif}
{if layer_z==20}M104 S195{endif}
{if layer_z==30}M104 S200{endif}
{if layer_z==40}M104 S205{endif}
{if layer_z==50}M104 S210{endif}
{if layer_z==60}M104 S215{endif}
{if layer_z==70}M104 S220{endif}
mvasilakis
on 4 May 2018
@stahlfabrik
Thanks for posting instructs. I didnt know how to accomplish this in slicer, although I wouldn't call it easy. Not hard but Simplify3d and Cura definitely have more noob friendly ways to accomplish a temp tower. So i agree with @hanpal
mylife4aiurr
on 4 May 2018
Instead of
{if layer_z==10}M104 S190{endif}
you can vary the speed using a numeric expression, like
M104 S{190+layer_z}
bubnikv
on 4 May 2018
If there was a modulo function defined, it could be even simpler! But not yet.
Panayiotis-git
on 4 May 2018
Thanks for the instructions! I will try this in Slic3r.
Instead of spending precious firmware space on a hard coded temperature tower, it could just be added to the example files shipped on the SD card.
Why not generate such a file and and make a pull-request to https://github.com/prusa3d/Prusa3D-Sample-Objects ?
vestom
on 4 May 2018
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Most helpful comment
@mylife4aiurr
Identify the Z height you need to change temperatures and add this Gcode to change temps on certain layers. Change the z==# to the z height of each layer where you want a temp switch. This will work in any slicer on layer change gcode section.
Paste G-code into Slic3r, Printer Settings, Custom G-code, After Layer change G-Code.
{if layer_z==10}M104 S190{endif}
{if layer_z==20}M104 S195{endif}
{if layer_z==30}M104 S200{endif}
{if layer_z==40}M104 S205{endif}
{if layer_z==50}M104 S210{endif}
{if layer_z==60}M104 S215{endif}
{if layer_z==70}M104 S220{endif}