Duet 3 Mainboard 6HC - initial production run.
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Dumb question: what voltage do the 5A OUT1-3 receive, the ones intended for "extruder heaters or similar?" Is it just VIN?
https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview#Section_Heating_Fans
(Apologies in advance if there's a better place to ask!)
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@evan38109 said in Duet 3 Mainboard 6HC - initial production run.:
Dumb question: what voltage do the 5A OUT1-3 receive, the ones intended for "extruder heaters or similar?" Is it just VIN?
https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview#Section_Heating_Fans
Yes.
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@t3p3tony said in Duet 3 Mainboard 6HC - initial production run.:
@deckingman said in Duet 3 Mainboard 6HC - initial production run.:
Tony, there is a bit of a conflict in the documentation https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview.
The picture of the boards has a graphic with the words "6x stepper drivers rated to 4A peak". But under "Features" the words say "Six high-current advanced TMC5160 stepper drivers: SPI controlled will all the latest Trinamic features. Maximum motor current 6.3A peak per phase (4.45A RMS)."
As DC ran the thermal tests on an expansion board at 6.3A, I'm assuming the "4A" in the graphic is incorrect.
Thanks Ian - its fixed now
Still showing 4A here https://duet3d.dozuki.com/Wiki/Duet_3_Mainboard_6HC_Hardware_Overview
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@gtj0 said in Duet 3 Mainboard 6HC - initial production run.:
MonoDevelop doesn't support .NET Core projects using .csproj project files. It complains about the project file not having a ProjectGuid.
It does so for me. Which versions of MonoDevelop and .NET Core do you use? I have MonoDevelop 7.8.3 and .NET Core 2.2.401 (with 2.2.6 Runtime).
Manuel
Duet 3 6HC (v0.6) with RPi 4B on a custom Cartesian
with probably always latest firmware/DWC (incl. betas or self-compiled)
My Tool Collection -
@t3p3tony said in Duet 3 Mainboard 6HC - initial production run.:
@calvinx Thats the plan - just see if we can get them sorted in time for this initial batch.
Thanks for the clarification.
Whats the plan to cater for those that purchased the initial batch if you cant amass connectors and plugs in time ?
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@t3p3tony Tony how is the pr-orders going for the first batch I need to order one but won't be able to till the end of this week?
Cheers
Doug
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@wilriker said in Duet 3 Mainboard 6HC - initial production run.:
@gtj0 said in Duet 3 Mainboard 6HC - initial production run.:
MonoDevelop doesn't support .NET Core projects using .csproj project files. It complains about the project file not having a ProjectGuid.
It does so for me. Which versions of MonoDevelop and .NET Core do you use? I have MonoDevelop 7.8.3 and .NET Core 2.2.401 (with 2.2.6 Runtime).
.NET Core is the same but MonoDevelop is 5.10.0 which is what's packaged for Fedora. Upgrading to 7.8 fixed it. Thanks Manuel!
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@dougal1957 said in Duet 3 Mainboard 6HC - initial production run.:
@t3p3tony Tony how is the pr-orders going for the first batch I need to order one but won't be able to till the end of this week?
Cheers
Doug
Also curious. I'll order one, just to support you guys, if there are enough left to stand a good chance of the order going through in this first batch.
Delta / Kossel printer fanatic
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The "Hardware overview" of the Duet 3 says "Ethernet for future expansion", I am guessing that this is a typo and the board has an ethernet connection not using WiFi?
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@fotomas The RPi has an RJ45 Ethernet which is what will be used for the web server etc. So my guess (and it is just a guess) would be that it's not typo but is indeed an additional Ethernet connector.
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@deckingman
You are correct the pi 3B+ also has wifiI think you would benefit from reading and analyze and digest the documentation in greater detail, as guessing is the mother of all F******s
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The ethernet port has been covered earlier in this very thread..
https://forum.duet3d.com/post/104297
https://forum.duet3d.com/post/104241 -
@deckingman said in Duet 3 Mainboard 6HC - initial production run.:
@fotomas The RPi has an RJ45 Ethernet which is what will be used for the web server etc. So my guess (and it is just a guess) would be that it's not typo but is indeed an additional Ethernet connector.
The Ethernet connector is there for 2 reasons:
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For possible support of EtherCat in future.
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We have a small number of OEMs who use Duet 2 in print farms, where one PC uploads GCode files to multiple Duets. They will need to replicate this with Duet 3. So there will be the possibility of running the Duet 3 in standalone mode with a local SD card and no RPi. Then the Ethernet port will be used to upload files, send commands and get status, just like the Duet 2. But we haven't yet decided whether to fit the SD card socket as standard to the initial production run.
Duet WiFi hardware designer and firmware engineer
Please do not ask me for Duet support via PM or email, use the forum
http://www.escher3d.com, https://miscsolutions.wordpress.com -
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@dc42 If you decide to not populate them, will the Duet3's be field upgradable if we decide we'd like that functionality? I.E. Is it just a matter of adding the magnetics/jack and the sd card holder?
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@deckingman yes 4A but RMS now. David has tested over 4A RMS but I will keep the claim to 4 for now until we have done more testing
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We still have some of the first batch unallocated. When we have sold out of that production run it will be out of stock on the website.
The "normal" production run later this year will not be a pre-order.
Cheers
Tony
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@t3p3tony said in Duet 3 Mainboard 6HC - initial production run.:
...yes 4A but RMS now.
Does the gcode current limit now instruct the drivers to maintain an RMS value or use the value as a limit to chop the current at?
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Judging by the post on ecoansion board testing 4A RMS is roughly 5.7A peak, but I guess the exact relationship between RMS and peak will be related to drive voltage and the electrical properties of the motor.
If the Duet 3 does still control at peak current does it report RMS or was that just read off the test rig equipment?
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M950 motor currents in RRF have always been peak. This is because when the original Duet 0.6 came out, instructions for setting potentiometers on stepsticks were given in terms of peak current, probably because the Allegro drivers that were generally used referred to peak currents in the datasheet.
Trinamic mostly refers to RMS currents in their datasheet. Somewhat confusingly, Marlin has adopted RMS current in its current-setting commands for Trinamic drivers, even though builds of Marlin for boards with non-Trinamic drivers that support motor current setting (e.g. RAMBO) have almost certainly always used peak current.
The maximum allowed M906 value in the latest RRF3 builds for Duet 3 is 6300.
