cukier/EspCncProjeto de placa em KiCad (v9) para a interface entre um modulo ESP32 e a eletronica da CNC 3035: drivers de motor de passo (ex. A4988/DRV8825/TMC2208), fins-de-curso, controle de spindle/laser e alimentacao.
EspCnc is an open-source printed circuit board by cukier, from the cukier/EspCnc repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 88.5 mm with 94 parts on 91 nets, routed with 610 tracks and 106 vias.
It is built around the LM2576HVS-5, AMS1117-3.3 and BC337, with the A4988, PN2222A and US1M among its other parts. Its parts include 33 resistors, 21 capacitors, 10 diodes, 10 connectors and 7 transistors. It belongs with the ESP32 boards of this library.
Projeto de placa em KiCad (v9) para a interface entre um modulo ESP32 e a eletronica da CNC 3035: drivers de motor de passo (ex. A4988/DRV8825/TMC2208), fins-de-curso, controle de spindle/laser e alimentacao.
Usado como referencia/ponto de partida o esquematico da buildlog.net,
disponivel em doc/esp32_test_schem_v1.pdf:
https://www.buildlog.net/blog/wp-content/uploads/2018/07/esp32_test_schem_v1.pdf
hardware/
├── EspCnc.kicad_pro # projeto KiCad
├── EspCnc.kicad_sch # esquematico (folha raiz, ainda vazio)
└── EspCnc.kicad_pcb # placa (ainda vazia)Abra EspCnc.kicad_pro no KiCad 9 (ou superior).
Esqueleto inicial do projeto. Proximos passos: desenhar o esquematico com
base na referencia da buildlog.net, definir o mapeamento de pinos do ESP32
usado pelo firmware em firmware/, e projetar a PCB.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 31 | 10k | Resistor_SMD:R_1206_3216Metric | R1, R2, R10, R11, R12, R13, R14, R15, R16, R17, R19, R21, R22, R23, R24, R25 +15 |
| 13 | 100nF | Capacitor_SMD:C_1206_3216Metric | C2, C4, C6, C8, C10, C12, C14, C16, C17, C18, C19, C20, C21 |
| 4 | BC337 | Package_TO_SOT_THT:TO-92_Inline_Wide | Q4, Q5, Q6, Q7 |
| 4 | BZx558v2 | Diode_SMD:D_MELF_Handsoldering | D7, D8, D9, D10 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.7mm_Pad | H1, H2, H3, H4 |
| 3 | 100uF | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C11, C13, C15 |
| 3 | A4988 | Module:Pololu_Breakout-16_15.2x20.3mm | A1, A2, A3 |
| 3 | MS | Button_Switch_THT:SW_DIP_SPSTx03_Slide_6.7x9.18mm_W7.62mm_P2.54mm_LowProfile | SW1, SW2, SW3 |
| 3 | STEPPER | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J6, J7, J8 |
| 2 | 1uF | Capacitor_SMD:C_1206_3216Metric | C7, C9 |
| 2 | ESP_32 | Connector_PinSocket_2.54mm:PinSocket_2x09_P2.54mm_Vertical | J2, J3 |
| 2 | PN2222A | Package_TO_SOT_THT:TO-92L_Inline_Wide | Q1, Q2 |
| 2 | US1M | Diode_SMD:D_SMA | D1, D4 |
| 1 | 1000uF | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C3 |
| 1 | 100uH | Inductor_SMD:L_Changjiang_FXL0840 | L1 |
| 1 | 10R | Resistor_SMD:R_1206_3216Metric | R18 |
| 1 | 22uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C5 |
| 1 | 470uF | Capacitor_THT:CP_Radial_D13.0mm_P5.00mm | C1 |
| 1 | 4k7 | Resistor_SMD:R_1206_3216Metric | R20 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U2 |
| 1 | B340 | Diode_SMD:D_SMC | D3 |
| 1 | IRF540N | Package_TO_SOT_THT:TO-220-3_Vertical | Q3 |
| 1 | LIMITS | Connector_PinHeader_2.54mm:PinHeader_2x04_P2.54mm_Vertical | J10 |
| 1 | LM2576HVS-5 | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
| 1 | PWR | LED_THT:LED_D3.0mm | D2 |
| 1 | PWR | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | SPINDLE | LED_THT:LED_D3.0mm | D6 |
| 1 | SPINDLE | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J9 |
| 1 | SS34 | Diode_SMD:D_SMA_Handsoldering | D5 |
| 1 | USB_D | Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical | J5 |
| 1 | USB_E | Connector_PinSocket_2.54mm:PinSocket_1x09_P2.54mm_Vertical | J4 |
It measures 100 × 88.5 mm and has 2 copper layers, 1.6 mm thick.
94 parts, built around the LM2576HVS-5, AMS1117-3.3, BC337 and A4988. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the cukier/EspCnc repository on GitHub, at the commit this page was made from: the board is hardware/Usinado/EspCnc.kicad_pcb and its schematic hardware/Body/Body.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
cukier/EspCnc
Projeto de placa em KiCad (v9) para a interface entre um modulo ESP32 e a eletronica da CNC 3035: drivers de motor de passo (ex. A4988/DRV8825/TMC2208), fins-de-curso, controle de spindle/laser e alimentacao.
cukier/EspCnc
Projeto de placa em KiCad (v9) para a interface entre um modulo ESP32 e a eletronica da CNC 3035: drivers de motor de passo (ex. A4988/DRV8825/TMC2208), fins-de-curso, controle de spindle/laser e alimentacao.
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