Made a Duet Wifi spinoff design Hi all, I've been playing with Kicad and made a version of Duet Wifi using tmc2224 drivers (from Maestro). I wanted something silent with a 32bit processor (with FPU). So I made this design. Not sure if I'm going to actually build it, but I thought someone might find it interesting. There's two footprints for MAX31865 chips, so you have PT100/1000 on board now. With jumpers to select 2/3/4 wire configurations. Drivers are mounted upside down for better cooling and they also have the full protection suite on the output (per datasheet). You can omit the varistors but they should offer extra protection. You can add heatsinks on the top of the pcb. This way you can drive them closer to max if you have a fan blowing on the heatsinks. Everything else should be the same. I dropped the debug led, there's 2-3 different connections on the large pin header, and cleaned a few tracks. Should be good to go but you should check it before making it. Hope it's useful. Sources can be found here: [github.com] There's bom files, with all parts from TME and Farnell. https://reprap.org/forum/read.php?416,837928,837928#msg-837928 Tue, 16 Jun 2026 05:39:44 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?416,837928,838705#msg-838705 Re: Made a Duet Wifi spinoff design https://reprap.org/forum/read.php?416,837928,838705#msg-838705 PDBeal Duet Fri, 16 Nov 2018 09:11:03 -0500 https://reprap.org/forum/read.php?416,837928,838006#msg-838006 Re: Made a Duet Wifi spinoff design https://reprap.org/forum/read.php?416,837928,838006#msg-838006
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o_lampe
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Board design improved in oct. 2016
says the pic? But the Maestro is brand new... ;)

It’s 2018, but I guess there’s a via making it look like a 6]]> bob808 Duet Thu, 08 Nov 2018 11:19:58 -0500 https://reprap.org/forum/read.php?416,837928,837991#msg-837991 Re: Made a Duet Wifi spinoff design https://reprap.org/forum/read.php?416,837928,837991#msg-837991 the_digital_dentist Duet Thu, 08 Nov 2018 09:37:16 -0500 https://reprap.org/forum/read.php?416,837928,837956#msg-837956 Re: Made a Duet Wifi spinoff design https://reprap.org/forum/read.php?416,837928,837956#msg-837956
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Board design improved in oct. 2016
says the pic? But the Maestro is brand new... ;)]]> o_lampe Duet Wed, 07 Nov 2018 23:33:13 -0500 https://reprap.org/forum/read.php?416,837928,837928#msg-837928 Made a Duet Wifi spinoff design https://reprap.org/forum/read.php?416,837928,837928#msg-837928 I've been playing with Kicad and made a version of Duet Wifi using tmc2224 drivers (from Maestro). I wanted something silent with a 32bit processor (with FPU). So I made this design. Not sure if I'm going to actually build it, but I thought someone might find it interesting.
There's two footprints for MAX31865 chips, so you have PT100/1000 on board now. With jumpers to select 2/3/4 wire configurations.
Drivers are mounted upside down for better cooling and they also have the full protection suite on the output (per datasheet). You can omit the varistors but they should offer extra protection.
You can add heatsinks on the top of the pcb. This way you can drive them closer to max if you have a fan blowing on the heatsinks.
Everything else should be the same. I dropped the debug led, there's 2-3 different connections on the large pin header, and cleaned a few tracks. Should be good to go but you should check it before making it.
Hope it's useful.
Sources can be found here: [github.com]
There's bom files, with all parts from TME and Farnell.]]> bob808 Duet Wed, 07 Nov 2018 14:10:09 -0500