Duet 0.8.5 Released August 06, 2015 09:20PM |
Registered: 12 years ago Posts: 177 |
Re: Duet 0.8.5 Released August 07, 2015 10:01AM |
Registered: 9 years ago Posts: 131 |
Re: Duet 0.8.5 Released August 09, 2015 02:01AM |
Registered: 9 years ago Posts: 445 |
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Viper97
I'll be following this... looks interesting.
Re: Duet 0.8.5 Released August 09, 2015 03:26AM |
Registered: 10 years ago Posts: 14,672 |
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Koenig
Does this: "E1 motor current controlled by the SAM3X8E DAC0 channel" mean that you can dynamically control the current to the stepper,
like using a larger current for quick accelerations (retractions) and a smaller one when there is normal movement to prevent the extruder from grinding into the filament?
If so, that is a feature worth upgrading for.
Re: Duet 0.8.5 Released August 09, 2015 03:47AM |
Registered: 9 years ago Posts: 445 |
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dc42
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Koenig
Does this: "E1 motor current controlled by the SAM3X8E DAC0 channel" mean that you can dynamically control the current to the stepper,
like using a larger current for quick accelerations (retractions) and a smaller one when there is normal movement to prevent the extruder from grinding into the filament?
If so, that is a feature worth upgrading for.
All the stepper motor currents can be set in software for all versions of the Duet. Currently, the only uses made of this are to set the stepper motor currents using the M906 command (usually does just once at startup, but you can do it any time), and reducing the stepper motor current when the machine is idle.
Adjusting the extruder motor current as you suggest is an interesting idea. I was using th 5:1 geared extruder with a 48mm long high torque high inertia motor, and I found that if I set the current low enough so as to not grind the filament when the nozzle got obstructed, then I could not achieve sufficient acceleration for the standard load/unload filament commands in the web interface to work. I solved it by changing to 3:1 gearing and a short motor with lower inertia. I didn't think of adjusting the current dynamically.
Re: Duet 0.8.5 Released August 09, 2015 04:22AM |
Registered: 10 years ago Posts: 14,672 |
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Koenig
So you mean that such a feature could be implemented in the 0.6 version of Duet as well?
Re: Duet 0.8.5 Released August 09, 2015 06:00AM |
Registered: 12 years ago Posts: 177 |
Re: Duet 0.8.5 Released August 09, 2015 05:17PM |
Registered: 11 years ago Posts: 248 |
Re: Duet 0.8.5 Released August 10, 2015 02:08AM |
Registered: 8 years ago Posts: 5,232 |
Re: Duet 0.8.5 Released August 10, 2015 03:40AM |
Registered: 12 years ago Posts: 177 |
Re: Duet 0.8.5 Released August 13, 2015 02:27AM |
Registered: 8 years ago Posts: 5,232 |
Re: Duet 0.8.5 Released August 13, 2015 03:06AM |
Registered: 10 years ago Posts: 14,672 |
Re: Duet 0.8.5 Released August 13, 2015 03:36AM |
Registered: 12 years ago Posts: 177 |
Re: Duet 0.8.5 Released August 13, 2015 06:18AM |
Registered: 8 years ago Posts: 5,232 |
Re: Duet 0.8.5 Released August 13, 2015 07:11AM |
Registered: 12 years ago Posts: 177 |
Re: Duet 0.8.5 Released August 13, 2015 08:26AM |
Registered: 10 years ago Posts: 14,672 |
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T3P3
Well the reason for doing a Duex4 with pluggable drivers would be to allow use of the DRV 8825s in stepstick format - but those have a trimpot on the boards for current control.
Re: Duet 0.8.5 Released October 27, 2015 12:22PM |
Registered: 9 years ago Posts: 131 |
Re: Duet 0.8.5 Released October 27, 2015 12:36PM |
Registered: 12 years ago Posts: 177 |
Re: Duet 0.8.5 Released October 27, 2015 01:18PM |
Registered: 10 years ago Posts: 14,672 |
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Viper97
I'm getting ready to pull the trigger on this... has anybody worked with the board and a Prusa I3? I'm curious as to if there were any problems and what I might need to wrap my head around to make this work! (I know, it's overkill but cheap RAMPS is making me rather testy in my old age.)
Re: Duet 0.8.5 Released October 27, 2015 01:24PM |
Registered: 9 years ago Posts: 131 |
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dc42
[There should be no problem running a Prusa i3 from a Duet, you just need to get the config.g file right. See [reprap.org]. The endstop switch connections on the Duet are different - if you are using microswitches then they need to be connected to the outer 2 pins of the 3-pin connector. As Tony says, there is no support for servo-deployed Z probe, but you can use my differential IR sensor, or an inductive or capacitive sensor - just make sure that you don't feed more than 3.3V into the input on the Duet unless it is via a 10K or greater value resistor. Also the Duet does not support the usual monochrome LCD displays, but it does support the very nice (but more expensive) PanelDue colour touch screen (full disclosure: I designed and manufacture it).
Re: Duet 0.8.5 Released October 27, 2015 01:34PM |
Registered: 10 years ago Posts: 14,672 |
Re: Duet 0.8.5 Released October 27, 2015 01:41PM |
Registered: 9 years ago Posts: 131 |
Re: Duet 0.8.5 Released October 28, 2015 03:57AM |
Registered: 8 years ago Posts: 5,232 |
Re: Duet 0.8.5 Released October 28, 2015 04:24AM |
Registered: 10 years ago Posts: 14,672 |
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o_lampe
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T3P3
I highly recommend you use the Web Interface to interact with the firmware - this runs in any modern browser
...as long as it's Chrome or Firefox
-Olaf
Re: Duet 0.8.5 Released October 28, 2015 09:15AM |
Registered: 9 years ago Posts: 131 |
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dc42
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o_lampe
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T3P3
I highly recommend you use the Web Interface to interact with the firmware - this runs in any modern browser
...as long as it's Chrome or Firefox
-Olaf
I am told that it works with Safari too. It doesn't work with IE or Edge.
Re: Duet 0.8.5 Released October 28, 2015 12:37PM |
Registered: 10 years ago Posts: 14,672 |
Re: Duet 0.8.5 Released October 29, 2015 04:26AM |
Registered: 8 years ago Posts: 5,232 |
Re: Duet 0.8.5 Released October 29, 2015 05:16AM |
Registered: 10 years ago Posts: 14,672 |
Re: Duet 0.8.5 Released October 29, 2015 07:02AM |
Registered: 9 years ago Posts: 131 |
Re: Duet 0.8.5 Released October 29, 2015 08:09AM |
Registered: 10 years ago Posts: 14,672 |
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Viper97
Okay... someone in England just got notified of my order. I went through the coding yesterday on the wiki as well as the blog. I thought I saw a set up for a Cartesian printer (example config) but now I can't find it.