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A comment on Show HN: JBR-001 – An open-source 3D printable desktop robot. Parent comment

Re:Show HN: JBR-001 – An open-source 3D printable desktop robot by esseph on Wednesday September 30, 2026 @07:40AM (#49907480)
Chinese clones of Arduinos are normally between 3x-6x cheaper, and if your project uses dozens or hundreds or thousands of them, especially in developing countries, that's a major price delta.
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Re:Show HN: JBR-001 – An open-source 3D printable desktop robot by fenykep on Wednesday September 30, 2026 @08:11AM (#49907749)
I assume at those scales it quickly becomes economical to design a custom board instead of using modules that are probably seated on cheap custom PCBs anyways.
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Re:Show HN: JBR-001 – An open-source 3D printable desktop robot by taneq on Wednesday September 30, 2026 @10:14AM (#49909300)
If you have a bit of time to learn the skills, it’s economical to design a custom board even for 5-10 units. An integrated controller module like an ESP32 can basically just be plonked onto a board with a voltage regulator and used like an Arduino.
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Re:Show HN: JBR-001 – An open-source 3D printable desktop robot by esseph on Wednesday September 30, 2026 @03:59PM (#49913521)
Board or not, it's the chip here that is expensive.
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