2 layers28.3 × 17.3 mm
2 layers64 × 64 mm
Eva terminals
elcojacobs/eva-toolboardBreakout board for EVA to mount to the back of a Nema 17 or name 17 motor. (31mm hole spacing or 43.8mm diagonally).
- Size
- 64 × 64 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 33
- Nets
- 39
- Pads
- 166
- Tracks, vias
- 350, 36
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Jan 2022
- Updated
- 21 Jan 2022
Overview
Eva terminals is an open-source printed circuit board by elcojacobs, from the elcojacobs/eva-toolboard repository on GitHub. It is a 2-layer board of 64 × 64 mm with 33 parts on 39 nets, routed with 350 tracks and 36 vias.
It is built around the ADXL345-EP, LD39015M33R and SN74LVC1G32DBVR-GK, with the 691403900006B and WS2812B among its other parts. Its parts include 8 connectors, 7 capacitors, 3 ICs, 1 resistor and 1 diode.
Main components
5
ADXL345-EP
LGA-14(3x5x0.8)LGA-14(3x5x0.8) New Arrivals ROHSAnalog DevicesUncategorised
LD39015M33R
SOT-23-5L-40℃~+125℃@(Tj) 1 100mV@(100mA) 150mA 18uA 29uVrms 3.3V 5.5V 65dB@(1kHz) Fixed Over Temperature Protection、Enable、Short Circuit Protection Positive SOT-23-5L Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsSN74LVC1G32DBVR-GK
SOT-23-5SOT-23-5 Logic Gates ROHSGOODWORKLogic Gates
691403900006B
-- Screw Terminal Blocks ROHSWürth ElektronikScrew Terminal Blocks
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
README
README.mdNema 14/17 Toolboard for EVA
Breakout board for EVA to mount to the back of a Nema 17 or name 17 motor. (31mm hole spacing or 43.8mm diagonally).
All signals and power are routed over 2 20p ribbon cables. For the heater, 5 parallel wires are used to provide enough current. For part fan power, 2 parallel wires are used.
The same board is mounted at the hotend and near the main board. On the main board side, most components are not mounted, only the connectors. On the hotend side, all components are mounted except the terminal block in the middle.
Features
- Everything wired through 2 ribbon cables.
- Spring terminal blocks for: heater, part fan, tool fan, probe, neopixel, aux 1-3
- ADXL345 on board
- Chamber temp PT1000 on board
- Neopixel LED on board and daisy chained to output terminal block
- 3 unused AUX signals
Jumpers
- On the hotend side, connect 1 of the solder jumpers to select the voltage for the probe
- For correct neopixel routing, connect the hotend solder jumpers on the hotend side and the board solder jumpers on the main board side.
License
Shield: 
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Parts
33| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 |
| 7 | 1U | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3, C4, C5, C6, C8 |
| 3 | 691403900006B | Eagle_WR-TBL Spring Clamp (rev21a):691403900006B | J1, J2, J4 |
| 2 | Conn_02x10_Odd_Even | Eagle_WR-MM (rev20b):690367292076 | J6, J7 |
| 1 | 470R | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | ADXL345 | Package_LGA:LGA-14_3x5mm_P0.8mm_LayoutBorder1x6y | U2 |
| 1 | Conn_01x04 | Connector_JST:JST_XH_S4B-XH-A_1x04_P2.50mm_Horizontal | J3 |
| 1 | FerriteBead_Small | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | HEATER | Eagle_WR-TBL Spring Clamp (rev21a):691401700002B | J5 |
| 1 | LD39015M33R | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | PT1000 | Resistor_SMD:R_1206_3216Metric | TH1 |
| 1 | SN74LVC1G32DBVR | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | SPI | Eagle_WR-TBL Spring Clamp (rev21a):691403900006B | J8 |
| 1 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D1 |
The 30 most common of 33 parts.
Questions
How big is the Eva terminals PCB?
It measures 64 × 64 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Eva terminals use?
33 parts, built around the ADXL345-EP, LD39015M33R, SN74LVC1G32DBVR-GK and 691403900006B. 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.
Where can I download the Eva terminals KiCad files?
From the elcojacobs/eva-toolboard repository on GitHub, at the commit this page was made from: the board is eva-terminals.kicad_pcb and its schematic eva-terminals.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Eva terminals design in my own project?
Its repository states no licence, so its author keeps all rights: ask elcojacobs before reusing the design.
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