The claw expansion board
About the The claw expansion board
The claw expansion board is an open source PCB design by askiiart, published on GitHub. It is a 2-layer board measuring 99.8 × 99.8 mm, with 46 components from 27 distinct parts.
Other key parts include the COS29752, PCF8574AP, 74LV1T08GW and TMP100. By type, the board carries 16 connectors, 12 resistors, 6 transistors, 6 capacitors, 5 ICs and 1 diode.
From the project
expansion board for the claw
This design accidentally used an LDO, which can lead to up to ~240 watts of excess heat being generated. Do not use this as it is now! Change the design to use a buck converter instead.
Would recommmend swapping it out for a XL4016E1. Will be updated with that eventually.
An expansion board to support further modding for my printer I'm desinging for Blueprint. The goals of this are:
Main components on the The claw expansion board
The claw expansion board bill of materials (BOM)
46 components, 27 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | COS29752 | TO-263-5_TabPin3 | U1, U2 |
| 1 | PCF8574AP | DIP-16_W7.62mm | U3 |
| 1 | 74LV1T08GW | SOT-353_SC-70-5 | U4 |
| 1 | TMP100 | SOT-23-6 | U5 |
| 4 | MS50N | TO-252-2 | Q1, Q2, Q3, Q4 |
| 1 | BSS84 | SOT-23 | Q5 |
| 1 | AO3400A | SOT-23 | Q6 |
| 3 | Conn_01x02 | AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | J1, J2, J4 |
| 1 | Conn_01x02 | AMASS_XT60PW-M_1x02_P7.20mm_Horizontal | J3 |
| 2 | Conn_01x04 | JST_XH_S4B-XH-A-1_1x04_P2.50mm_Horizontal | J5, J10 |
| 1 | Conn_02x06_Odd_Even | CONN-SM12B-ZPDSS-TF | J6 |
| 1 | Conn_01x03 | JST_XH_S3B-XH-A_1x03_P2.50mm_Horizontal | J7 |
| 1 | Conn_01x03_Socket | DB125-2.54-3P | J8 |
| 1 | Conn_01x02 | PinHeader_1x02_P2.54mm_Vertical | J9 |
| 2 | Conn_01x04_Socket | DB125-2.54-4P | J11, J12 |
| 1 | Conn_03x03_Odd_Even | PinHeader_3x03_P2.54mm_Vertical | J13 |
| 1 | Conn_01x02 | JST_XH_S2B-XH-A-1_1x02_P2.50mm_Horizontal | J14 |
| 1 | Conn_01x02 | AMASS_XT60PW-F_1x02_P7.20mm_Horizontal | J15 |
| 1 | Conn_01x03 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J16 |
| 1 | D_Small | D_DO-35_SOD27_P7.62mm_Horizontal | D1 |
Show 7 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 4 | 68uF | CP_Radial_D6.3mm_P2.50mm | C1, C4, C5, C6 |
| 2 | 0.1uF | R_Axial_DIN0204_L3.6mm_D1.6mm_P2.54mm_Vertical | C2, C3 |
| 1 | 8.2k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 8 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R6, R7, R8, R9, R10, R11, R12 |
| 1 | 3.3k | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R5 |
The claw expansion board design files
The KiCad project lives in the askiiart/the-claw-expansion-board repository on GitHub; these links point at the commit this page was built from.
The claw expansion board: common questions
How big is the The claw expansion board?
The The claw expansion board measures 99.8 × 99.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the The claw expansion board?
46 components, from 27 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the The claw expansion board design files?
From the askiiart/the-claw-expansion-board repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the The claw expansion board design in my own project?
The repository has no license, so all rights stay with askiiart. Use it as a reference, and ask the author before reusing the design.