Pocket Cutter

1 year ago 206
  • Description
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  • BOM
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Description

This is a device that cuts anything that breaks the laser line. Once the photo resistor (PRA, PRB) detects no laser (LD+, LD-) , the motors (M1A, M1B, M2A, M2B) will start to spin. The motor shafts are connected to sharp blades that cuts. C2 is normally charged, when the device is triggered, C2 will discharge through the electromagnet 1 (EM1A, EM1B). The electromagnet 1 will release a sharp metal pin that stabs into the object so you can't pull it out during the cutting process to prevent injury. After 10 seconds, C3 is charged and turns on electromagnet 2 and 3 (EM2,3A, EM2,3B) that indicates the cutting is finished. Once electromagnet 2 and 3 is turned on, it opens another switch (CA,CB) that turns off electromagnet 2 and 3. The battery (BATT+, BATT-) is two 1000mAh Lithium-ion batteries in series. It can be charged from the DC jack while the switch is in charge position.

Documents

Schematic

PCB

BOM

ID Name Designator Footprint Quantity Manufacturer Part Manufacturer Supplier Supplier Part Price LCSC Assembly Mounted
1 7805 U1 TO-220 1 Yes
2 220R R1 AXIAL-0.4 1 Yes
3 2.2k R2 AXIAL-0.4 1 Yes
4 8050D Q1 TO-92(TO-92-3) 1 8050D SEMTECH LCSC Yes C118548
5 10K R3 AXIAL-0.4 1 Yes
6 1000uF C2,C3 CAP-D10.0XF5.0 2 KM102M016G125A CapXon LCSC Yes C59380
7 10k R4 AXIAL-0.4 1 Yes
8 BATT+ P1 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
9 BATT- P2 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
10 LD+ P3 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
11 LD- P4 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
12 470uF C1 CAP-D8.0XF3.5 1 470uF 25V 8*12 ValuePro LCSC Yes C43839
13 EG1218 SW1 SW3-2.5-11.6X4.0X5.4+2.0MM 1 EG1218 Yes
14 DC 8.4V DC1 DC-5020 1 DC005-2.0MM SOFNG LCSC Yes C111567
15 PRA P5 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
16 PRB P6 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
17 5V K1 RELAY-OMRON_G5V2 1 G5V-2-5V OMRON LCSC Yes C27269
18 EM1A P7 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
19 EM1B P8 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
20 M1A P9 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
21 M1B P10 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
22 M2B P11 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
23 M2A P12 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
24 EM2,3+ P13 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
25 EM2,3- P14 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
26 CA P15 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276
27 CB P16 HDR-1X1/2.54 1 Header-Male-2.54_1x1 ReliaPro LCSC Yes C81276

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