At the bottom of the neck of this vase (scaled 60%: http://www.thingiverse.com/thing:550604) , the printer doubles the print speed, thus messing up the print. Is there someway I can easily check the gcode to see if this is a slicer issue, or a firmware issue?
Details: Slic3r 1.2.4, 1.1mm layers, 4mm/s for all speeds except travel 30mm/s, 185ºC, 1.2mm e3d Volcano nozzle, Marlin (not sure how to find the version, but from June last year)
May be the “slow down if layer print time is below” setting come into play?
4mm/s is pretty slow, is that for the thick layer to harden? Do you have fan blowing at the print?
Thanks, I’ll check, but the neck should be a lower print time than the body, so I don’t think it is this setting.
And yes I have lots of fan blowing going on (2x40mm & 1x120mm) at about 10ºC room temperature, the thick layers print a lot of volume which takes some time to cool. That said the main issue is the speed change as if the speed was uniform I could experiment with a faster speed and raising the hotend temperature whist keeping the extrusion temperature at about 185ºC - the 4mm/s (assuming thats what is being followed in the body) being the maximum speed I can do at 185ºC without the extruder skipping.
I was thinking the base is printing at 4mm/s, and the neck is even slower, just a wild guess.
Craftware has a excellent gcode viewer. The UI is quite different, click “support” then “gcode” and you could load gcode. Then drag the layer & line pointer to where you want to examine.
I thought the neck should print slower too, but as I said it doubled the speed, I recovered it by manually reducing the speed using the printer panel.
I’ll check out craftware, thanks.
Oops… I misunderstood what you said. Sorry that I have no clues what’s happening here.
Humm craftware has a nice gcode view, but it does not appear to support loading in a gcode file from outside of the program. Anybody else got a suggestion?
Hang on just opened the code to read it directly and it obvious that the feed rate goes from F240 to F600, just have to work out why now!
Ok so min print speed (for cooling) is set to 10 mm/s in the cooling section, so I think this is kicking in and raising the print speed, so more or less what you thought @hon_po
There’s a load button in the gcode view, it does support loading external gcode. It also flag some error in my start gcode which is nice. Just the UI not quite logical.
