Duet 3 Mini 5+ Future Expansion Options
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The Mini2+ expansion board is now available from some of our resellers.
Connecting two Mini5+ boards together is implemented to some extent in firmware 3.3beta. Only some functions are implemented: remote drivers (but not some of the driver configuration commands), GpIn pins, GpOut pins, and some types of temperature sensor (thermistors, PT100, and probably thermocouples). Heaters, fans and filament monitors are not yet supported.
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why does the Mini 5 + use micro USB and not USB type C? Micro USB is quite an old connector, so I don't really understand?
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The Mini 5+ is price-sensitive, and last time we looked, USB C connectors and cables were still expensive compared to Micro USB B. We have it on our list to review when the prices fall sufficiently.
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I started recently using these $4 ARM F4 modules which come with a USB C connector and it's definitely an improvement.
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does the Laser Filament Monitor V2.0 and the Rotating Magnet Filament Monitor work with the Mini 5+? and which one is best?
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@Niko-Hogh Yes they both work. They each have pros and cons. Would need to do some research and see which may work best for you. The laser sensor can be sensitive to filament type, but there are mod options that use a rotating bearing as the sensed surface rather than the filament directly.
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Anyone know where we can get the expansion board in Uk please? None of the big reseller have this on stock , not even listed.
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@razrudy From what I understand there is more stock on the way
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@zapta said in Duet 3 Mini 5+ Future Expansion Options:
I started recently using these $4 ARM F4 modules which come with a USB C connector and it's definitely an improvement.
$4 is very expensive compared to a micro-USB socket... the prices of those are measured in nickels.
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@dc42 said in Duet 3 Mini 5+ Future Expansion Options:
we hope to provide the option of using a second Mini 5+ as an expansion board
Could it also be an option to use the Mini as an extension for a 6HC?
The reason I ask is that I assumed that pairing 2 minis would be the perfect solution for my new printer.
But currently I have the impression that the trent is going to larger motors for X and Y axis with a tool changer.
If I understand correctly, there will be no reasonable option for connecting external drivers on the Mini.(UTC+1)
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@DIY-O-Sphere said in Duet 3 Mini 5+ Future Expansion Options:
Could it also be an option to use the Mini as an extension for a 6HC?
I think that's been hinted at but I don't think anything has been tested for certain yet.
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@DIY-O-Sphere said in Duet 3 Mini 5+ Future Expansion Options:
Could it also be an option to use the Mini as an extension for a 6HC?
Yes there could be. It should work partially already in the latest source code, however we don't expect to make it fully working until release 3.4 at the earliest.
@DIY-O-Sphere said in Duet 3 Mini 5+ Future Expansion Options:
If I understand correctly, there will be no reasonable option for connecting external drivers on the Mini.
It would be possible to make a daughter board to connect two external drivers instead of the Mini2+ board, step and direction only (no enable signal).
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 -
@dc42 said in Duet 3 Mini 5+ Future Expansion Options:
step and direction only
Thank you for the quick reply. I would prefer a spi solution....
I will start with 2 minis first. Until I have the machine mechanically ready there will be a solution with the 6HC. And I'll probably only need the large drivers if I want to print extremely fast. That is beyond my competence so far.... -
@dc42 Any updated timeline for a more complete "Mini 5 as an expansion board" featureset? I'm planning to use a combination of 6HC and Mini in the future to replace my Duet Wifi + Duex 5 combination on a toolchanger. For me, that would be the most space efficient way of doing things since my toolheads are a little too small to nicely fit toolboards and I don't really mind the large-ish cabling loom.
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@diamondback said in Duet 3 Mini 5+ Future Expansion Options:
@dc42 Any updated timeline for a more complete "Mini 5 as an expansion board" featureset? I'm planning to use a combination of 6HC and Mini in the future to replace my Duet Wifi + Duex 5 combination on a toolchanger. For me, that would be the most space efficient way of doing things since my toolheads are a little too small to nicely fit toolboards and I don't really mind the large-ish cabling loom.
Possibly in RRF 3.4, but definitely in RRF 3.5.
I presume you need support for heaters and fans on the Mini5+. Do you also need to support filament monitors?
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 -
@dc42 said in Duet 3 Mini 5+ Future Expansion Options:
@diamondback said in Duet 3 Mini 5+ Future Expansion Options:
@dc42 Any updated timeline for a more complete "Mini 5 as an expansion board" featureset? I'm planning to use a combination of 6HC and Mini in the future to replace my Duet Wifi + Duex 5 combination on a toolchanger. For me, that would be the most space efficient way of doing things since my toolheads are a little too small to nicely fit toolboards and I don't really mind the large-ish cabling loom.
Possibly in RRF 3.4, but definitely in RRF 3.5.
I presume you need support for heaters and fans on the Mini5+. Do you also need to support filament monitors?
Lovely
Current plan is to connect XY and all 4 extruders to the 6HC, coupler and 3xZ goes to the Mini. The heaters/thermistors need to be shared across them of course. (pending actual research about whether or not it's smart to split up extruders and heaters across different boards and such)
I'm currently not running filament sensors, however, still undecided how useful a magnetic sensor would be long ways away from the DD extruder (again, not enough space on my toolhead to place it there directly...)
But yea, I will have sensors of some sort in the future again, even if only microswitches.
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@diamondback said in Duet 3 Mini 5+ Future Expansion Options:
Current plan is to connect XY and all 4 extruders to the 6HC, coupler and 3xZ goes to the Mini.
There is currently a limitation on the connection of Z motors when a Z probe is used. So it would be better to connect the Z motors to the 6HC and the extruders to the 3 Mini.
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@dc42 said in Duet 3 Mini 5+ Future Expansion Options:
@diamondback said in Duet 3 Mini 5+ Future Expansion Options:
Current plan is to connect XY and all 4 extruders to the 6HC, coupler and 3xZ goes to the Mini.
There is currently a limitation on the connection of Z motors when a Z probe is used. So it would be better to connect the Z motors to the 6HC and the extruders to the 3 Mini.
Is that something that you plan to fix along with the heaters and other missing things? I'm not overly concerned with how long it takes, my upgrade plans are for like in half a year to a full year or so.
But even if not, not really a big problem.
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@diamondback yes it's scheduled to be implemented, but probably not until RRF 3.5 now.
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 -
@dc42 at this time you just can't get the Mini 2+ in the UK , will you be ever selling them direct .
At this time you can get From Filafarm Germany https://www.filafarm.de/collections/elektronik/products/duet-3-mini-2-dual-stepper-expansion-board
But the postage is as most as the board !!!Ender 5 plus linear rail and hemera powered by duet 2 wifi , CR10s pro v1 with bltouch mostly stock , BLV mgn Cube slowly being built powered by duet 3 mini 5+
