Just starting December 10, 2017 04:46AM |
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Re: Just starting December 10, 2017 01:54PM |
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Re: Just starting December 15, 2017 03:28AM |
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Re: Just starting December 15, 2017 04:11AM |
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Re: Just starting December 16, 2017 06:32PM |
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Re: Just starting December 16, 2017 07:47PM |
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Re: Just starting December 17, 2017 06:12AM |
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Re: Just starting December 18, 2017 08:03PM |
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Re: Just starting December 20, 2017 01:17PM |
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Re: Just starting December 20, 2017 04:01PM |
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Re: Just starting December 20, 2017 04:17PM |
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Quote
VDX
... if you want acceptable engraving/marking results and faster movement than 10mm/s, then PWM wouldn't be the way - with contsnt PWM and accelerated moving the start/end of lines will burn much more than the constant speed part.
Best methode for 3D-printer electronics+firmwares is to use the extruder driver steps, as they are calculated per distance, what's independent of speed ...
Re: Just starting December 20, 2017 05:38PM |
Registered: 9 years ago Posts: 223 |
Quote
VDX
... if you want acceptable engraving/marking results and faster movement than 10mm/s, then PWM wouldn't be the way - with contsnt PWM and accelerated moving the start/end of lines will burn much more than the constant speed part.
Best methode for 3D-printer electronics+firmwares is to use the extruder driver steps, as they are calculated per distance, what's independent of speed ...
Re: Just starting December 20, 2017 07:05PM |
Registered: 11 years ago Posts: 1,049 |
Re: Just starting December 21, 2017 02:26AM |
Registered: 8 years ago Posts: 5,232 |
Quote
dc42
Quote
VDX
... if you want acceptable engraving/marking results and faster movement than 10mm/s, then PWM wouldn't be the way - with contsnt PWM and accelerated moving the start/end of lines will burn much more than the constant speed part.
Best methode for 3D-printer electronics+firmwares is to use the extruder driver steps, as they are calculated per distance, what's independent of speed ...
That has given me an idea. For several years, RepRapFirmware has provided a facility to set a specified PWM value on an output pin whenever extrusion is supposed to be taking place. This is typically used for laser engravers. Perhaps we should adjust the PWM value so as to be proportional to the movement speed. What do you think?
Re: Just starting December 21, 2017 08:37AM |
Admin Registered: 16 years ago Posts: 13,886 |
Quote
dc42
Quote
VDX
... if you want acceptable engraving/marking results and faster movement than 10mm/s, then PWM wouldn't be the way - with contsnt PWM and accelerated moving the start/end of lines will burn much more than the constant speed part.
Best methode for 3D-printer electronics+firmwares is to use the extruder driver steps, as they are calculated per distance, what's independent of speed ...
That has given me an idea. For several years, RepRapFirmware has provided a facility to set a specified PWM value on an output pin whenever extrusion is supposed to be taking place. This is typically used for laser engravers. Perhaps we should adjust the PWM value so as to be proportional to the movement speed. What do you think?
Re: Just starting December 21, 2017 08:43AM |
Admin Registered: 16 years ago Posts: 13,886 |
Quote
o_lampe
Quote
dc42
Quote
VDX
... if you want acceptable engraving/marking results and faster movement than 10mm/s, then PWM wouldn't be the way - with contsnt PWM and accelerated moving the start/end of lines will burn much more than the constant speed part.
Best methode for 3D-printer electronics+firmwares is to use the extruder driver steps, as they are calculated per distance, what's independent of speed ...
That has given me an idea. For several years, RepRapFirmware has provided a facility to set a specified PWM value on an output pin whenever extrusion is supposed to be taking place. This is typically used for laser engravers. Perhaps we should adjust the PWM value so as to be proportional to the movement speed. What do you think?
IMHO that wouldn't work for gray scale engraving? Except you'd allow a PWM-value read from gcode and then vary it according momentary speed.
Re: Just starting December 22, 2017 04:40AM |
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Re: Just starting December 22, 2017 10:34PM |
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