Re: Duet development news April 23, 2016 01:12PM |
Registered: 12 years ago Posts: 1,236 |
Re: Duet development news April 23, 2016 01:22PM |
Registered: 9 years ago Posts: 517 |
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bobc
I appreciate it is always more convenient to have everything on board, but where do you draw the line? Someone will always want more - to run LED strings, RasPi, hub, keyboard, mouse, recharge their tablet/phone...
Re: Duet development news April 23, 2016 01:28PM |
Registered: 12 years ago Posts: 177 |
Re: Duet development news April 23, 2016 05:41PM |
Registered: 10 years ago Posts: 14,672 |
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PRZ
I get the point not having 12V on a 24V machine, but 5V IS available and widen the choice for the controlled fans.
At the very minimum, the controlled fan LED rail shall be disconnectable to be able to supply in 5V without tricky wiring.
Re: Duet development news April 23, 2016 05:44PM |
Registered: 10 years ago Posts: 14,672 |
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ElmoC
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bobc
I appreciate it is always more convenient to have everything on board, but where do you draw the line? Someone will always want more - to run LED strings, RasPi, hub, keyboard, mouse, recharge their tablet/phone...
The line is on the other side of all the stuff I want.
From other electronics I have worked with that supplies a 5V line, they normally only put on something big enough for their needs. Seems that is not the case with the Duet. There is some extra available. If it would have been just a matter of changing out a few components to supply more current, thought it would be a nice addition. Since the Duet has a nice web interface, I don't need to run OctoPrint. However, to get wireless, I need to run something like the TP-Link. Being able to just get power for it from the board would be nice and it sounds like I should be able to do that as long as I don't run the Panel.
Re: Duet development news April 23, 2016 05:50PM |
Registered: 13 years ago Posts: 268 |
Yes, I suggested a selection jumper earlier. It's not hard to find most fans in most form factors in 5v, 24v not so much. An always on fan thats at "system voltage" can just be wired in to the power supply, although convenient to have a connector on board, it's really not strictly needed.Quote
dc42
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PRZ
I get the point not having 12V on a 24V machine, but 5V IS available and widen the choice for the controlled fans.
At the very minimum, the controlled fan LED rail shall be disconnectable to be able to supply in 5V without tricky wiring.
That could probably be done, but would users be happy to have a choice between all the controlled fans driven from 5V and all driven from Vin? What about the always-on fans?
Re: Duet development news April 23, 2016 07:08PM |
Registered: 8 years ago Posts: 475 |
Re: Duet development news April 23, 2016 07:26PM |
Registered: 9 years ago Posts: 517 |
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dc42
Even with a PanelDue, if the TPLink only takes 150mA that should be no problem. The PanelDue takes about 330mA with the 4.3" screen, 630mA with the 7" screen, and somewhere in between with the 5" screen.
Re: Duet development news April 23, 2016 09:34PM |
Registered: 12 years ago Posts: 177 |
Re: Duet development news May 02, 2016 04:07AM |
Registered: 12 years ago Posts: 1,236 |
Re: Duet development news May 09, 2016 07:08PM |
Registered: 10 years ago Posts: 14,672 |
Re: Duet development news May 09, 2016 07:15PM |
Registered: 9 years ago Posts: 517 |
Re: Duet development news May 09, 2016 09:15PM |
Registered: 8 years ago Posts: 177 |
Re: Duet development news May 09, 2016 09:19PM |
Registered: 9 years ago Posts: 517 |
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aussiephil
Sounds good dc42, sort of sad that I have a 0.8.5 coming to continue my build, the DuetNG will be an upgrade for that machine though.
With more people using external heater SSR's, it's a pity not to have a small 2 pin header for external SSR connection.
Re: Duet development news May 10, 2016 01:41AM |
Registered: 8 years ago Posts: 177 |
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ElmoC
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aussiephil
Sounds good dc42, sort of sad that I have a 0.8.5 coming to continue my build, the DuetNG will be an upgrade for that machine though.
With more people using external heater SSR's, it's a pity not to have a small 2 pin header for external SSR connection.
Maybe the board could be designed with holes for both the bigger connector and a Molex KK style one? That way if you want the smaller connector, you can unsolder the big one and add the smaller one. At least with the current screw connectors for the hot ends, I was able to remove those and replace them with Molex connectors. I would hope the new board also keeps the 0.1" spacing for those connectors.
Re: Duet development news May 10, 2016 02:56AM |
Registered: 10 years ago Posts: 14,672 |
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aussiephil
Sounds good dc42, sort of sad that I have a 0.8.5 coming to continue my build, the DuetNG will be an upgrade for that machine though.
With more people using external heater SSR's, it's a pity not to have a small 2 pin header for external SSR connection.
Re: Duet development news May 10, 2016 07:58AM |
Registered: 8 years ago Posts: 475 |
Re: Duet development news May 10, 2016 08:14AM |
Registered: 10 years ago Posts: 14,672 |
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PRZ
May be too late,
but I already suggested to provide a supplementary thermistor input to control ambiant temperature (in or atop the printer) for fire safety.
Re: Duet development news May 10, 2016 08:45AM |
Registered: 8 years ago Posts: 475 |
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dc42
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PRZ
May be too late,
but I already suggested to provide a supplementary thermistor input to control ambiant temperature (in or atop the printer) for fire safety.
You could achieve that using a spare thermistor channel if you have one. If you don't, then you probably don't have an expansion board connected, in which case you can connect an extra thermistor to one of the expansion connector thermistor channels along with a 4.7K pullup resistor to 3.3V.
Re: Duet development news May 10, 2016 11:13AM |
Registered: 10 years ago Posts: 14,672 |
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PRZ
Using expansion connector is workable, but not practical, that need to have flying components and 1 pin connections, and if I follow same schematic, there is also a capacitor to add. A safety feature shall be straightforward.
Re: Duet development news May 10, 2016 11:32AM |
Registered: 9 years ago Posts: 517 |
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PRZ
May be too late,
but I already suggested to provide a supplementary thermistor input to control ambiant temperature (in or atop the printer) for fire safety.
Re: Duet development news May 10, 2016 12:45PM |
Registered: 7 years ago Posts: 13 |
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dc42
Testing of the first prototype board has gone very well. We could put it into production with the only design change being the addition of one capacitor. However, we always intended to make further improvements to the capability of the board. These have been finalised, and a second prototype is currently being manufactured.
Re: Duet development news May 10, 2016 03:01PM |
Registered: 9 years ago Posts: 1,699 |
Re: Duet development news May 10, 2016 05:47PM |
Registered: 10 years ago Posts: 14,672 |
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uvarovkv
David, which drivers you decided to use in the last prototype?
Re: Duet development news May 10, 2016 05:49PM |
Registered: 10 years ago Posts: 14,672 |
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Treito
Dc42 do you have more details about these smoke detectors? The ordinary ones that will be mounted on the ceiling with a potential free contact or is there a design out there that will be mounted nearby the printer?
Re: Duet development news May 10, 2016 06:02PM |
Registered: 7 years ago Posts: 13 |
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Treito
Dc42 do you have more details about these smoke detectors? The ordinary ones that will be mounted on the ceiling with a potential free contact or is there a design out there that will be mounted nearby the printer?
Re: Duet development news May 10, 2016 06:05PM |
Registered: 7 years ago Posts: 13 |
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dc42
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uvarovkv
David, which drivers you decided to use in the last prototype?
The first prototype used A4982 drivers, same as the existing Duet. We're not revealing what drivers are on the second prototype until we have done some stress testing and thermal testing, in case they don't meet our expectations and we have to revert to A4982 drivers or choose something else.
Re: Duet development news May 11, 2016 03:39AM |
Registered: 9 years ago Posts: 1,699 |
Re: Duet development news May 11, 2016 06:01AM |
Registered: 10 years ago Posts: 14,672 |
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dc42
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Treito
Dc42 do you have more details about these smoke detectors? The ordinary ones that will be mounted on the ceiling with a potential free contact or is there a design out there that will be mounted nearby the printer?
I can't remember the details. There was a thread about it in the Safety section of these forums, about a year ago AFAIR.
Re: Duet development news May 13, 2016 07:51AM |
Registered: 10 years ago Posts: 2,472 |