New firmware: temperature correction, absolute extruder moves March 17, 2014 07:57AM |
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Re: New firmware: temperature correction/absolute extruder moves March 17, 2014 08:08AM |
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Re: New firmware: temperature correction/absolute extruder moves March 17, 2014 10:46AM |
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Re: New firmware: temperature correction/absolute extruder moves March 17, 2014 12:07PM |
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Absolute extrusion also seems to work - tested by restarting a print sliced by Cura without Frank's plugin, this used to provoke the rewind to E=0 on attempting the second run, it no longer does.Quote
dc42
2. I have added untested code to fix the problem when absolute extruder distances are used and a G92 command to set the extruder position is received.
Re: New firmware: temperature correction/absolute extruder moves March 17, 2014 12:41PM |
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Re: New firmware: temperature correction, absolute extruder moves March 17, 2014 02:11PM |
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Re: New firmware: temperature correction, absolute extruder moves March 17, 2014 02:26PM |
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Re: New firmware: temperature correction/absolute extruder moves March 17, 2014 02:31PM |
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Re: New firmware: temperature correction, absolute extruder moves March 17, 2014 02:48PM |
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Quote
rayhicks
DaveK, it defaults to zero - which gives the same behaviour as before if you don't calibrate. There are some boards that badly need calibration to get printing going (otherwise they read as -273 when the room temperature drops in some cases, or don't reach a temperature high enough for extrusion in others) - if it's all working for you, just ignore the M301 L and H parameters.
Cheers
Ray
Re: New firmware: temperature correction, absolute extruder moves March 17, 2014 05:58PM |
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Re: New firmware: temperature correction, absolute extruder moves March 17, 2014 06:45PM |
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Re: New firmware: temperature correction, absolute extruder moves March 17, 2014 08:19PM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 03:52AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 04:30AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 05:11AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 05:11AM |
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Quote
bobtidey
Wouldn't saving them to file on the SD by the Duet have the same effect? Effectively treating the file as the equivalent of the Flash. It could either be update of the actual config.sys or a separate parameter file if you wanted to keep it independent. Either way it avoids a separate update from PC and doesn't use the Flash. Plus it survives a firmware update.
Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 06:56AM |
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Quote
dc42
Unfortunately, if people get -273 at an ambient temp of +15 when using one of my recent firmware versions, then the calibration facility I have added won't help,
Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 07:39AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 07:45AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 08:01AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 08:27AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 08:53AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 08:58AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:02AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:18AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:18AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:22AM |
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Quote
droftarts
Most other firmware uses pre-generated thermistor tables embedded in firmware, requiring flashing updated firmware to change the thermistor values. We can change the thermistor values on the fly, as they are calculated by the firmware. I think splitting thermistor settings out from PID settings (M301) is advisable, or the M301 command becomes rather unwieldy, particularly if you're going to add other thermistor values. I suggest using M305, as this is currently unused.
Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:28AM |
Registered: 10 years ago Posts: 14,672 |
Quote
droftarts
I just realised you said you've used M301 for hot end PID, and M304 for bed PID? Does that mean you're using PWM for your bed, rather than bang/bang? Not really a problem, but...
Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:43AM |
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Re: New firmware: temperature correction, absolute extruder moves March 18, 2014 09:45AM |
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