Non Duet Hardware with RRF ?
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@Herve_Smith none of the boards running RRF, duet or teamgloomy ones will currently support the fly-sb2040
Owns various duet boards and is the main wiki maintainer for the Teamgloomy LPC/STM32 port of RRF. Assume I'm running whatever the latest beta/stable build is
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@Herve_Smith we have an experimental build for RP2040-based CAN-connected tool boards in the 3.5-dev branch of the Duet3Expansion and CoreN2G projects. However there is no specific build configuration for the Fly-SB2040 board. so you would need to create one yourself.
We have yet to do torture tests on CAN-FD/RP2040-based boards, so we don't yet know whether they will provide the required comms reliability. We plan to run such tests soon. The existing Fly RP2040 boards use a lower speed CAN transceiver that we use on Duets, and although it appears to work in our initial testing, that could be problematic e.g. at higher than normal temperatures, especially as RP2040-based CAN implementations do not implement transmitter delay compensation.
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 the SB2040 is a different implementation than the board you have seen. It may well require hardware changes before it would be suitable. for example it has a SIT1040TK as a CAN transceiver
SB2040_Schematic.pdf -
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@Herve_Smith Theres no current plans to support CAN 2.0. As dc42 mentioned, they are working on bring CAN-FD to RP2040 based toolboards.
With the teamgloomy port, none of the STM32F4 MCU's support CAN-FD. Only the STM32H7 MCU's do.
At the moment, the supported list of boards to connect over CAN-FD is- Duet 3 6HC (in expansion board mode - M954)
- Duet 3 6XD (in expansion board mode - M954)
- Duet 3 Mini 5+ (in expansion board mode - M954)
- Fysetc Big Dipper (in expansion board mode - M954)
- Another STM32H723 board (in expansion board mode - M954)
- Another STM32H743 board (in expansion board mode - M954)
- Duet 3 1XD
- Duet 3 3HC
- Duet 3 1HCL
- Duet 3 1LC
- Duet 3 Distribution Board
- Sammy-C21
The only toolboards are the Duet 3 1LC. Fysetc has cloned them but they currently have no stock of the MCU to manufacture any more
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@Herve_Smith i've mounted my toolboard to the back of the X carriage. Theres enough room for it not to come into contact with the z chain.
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@Herve_Smith feel free to swap over to klipper then.
no idea what the eta will be on RP2040 toolboard support -
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@Herve_Smith I went with the dirtybird toolhead and let the 1lc hang out there in all its glory lol.
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@Herve_Smith that's nice looking. I need to revise my toolhead location as I plan on switching to tap and I won't have the rear mounting position available any more.
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@jay_s_uk tap seems to be pretty good from what I hear. Just not sure if I'll go for it yet.
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@R4ffers gives me something to do.
at least it'll work nicely with RRF too -
@jay_s_uk aye, let me know how get on especially with your light weight X rail. I've got one on order
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@R4ffers the lightweight x rail is great. i temporarily had a carbon fibre one but that was awful. worth the investment
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@Herve_Smith said in Non Duet Hardware with RRF ?:
I just drew up a modified version of the "tap" that is lighter, uses less hardware and uses a pair of cross roller guides instead of a linear rail for stability
Cross roller guides? Do you have a link to those?
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@Herve_Smith thanks. I've ordered a set in preparation
