4 layers152.9 × 77.2 mm
LEC
MSTRocketDesignTeam/Liquid-Engine-Controller
Evolution of the RDT's Custom Liquid Engine Control Unit!
71 parts2AGPL-3.0
2 layers100 × 100 mm
Cuptorul
kelogs/awreflow32Andy's Workshop reflow oven (awreflow2)
- Size
- 100 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 57
- Pads
- 193
- Tracks, vias
- 661, 91
- Pours
- 7
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 14 Jun 2019
- Updated
- 17 Jun 2019
Overview
Cuptorul is an open-source printed circuit board by kelogs, from the kelogs/awreflow3 repository on GitHub, published under the MIT licence. It is a 2-layer board of 100 × 100 mm with 59 parts on 57 nets, routed with 661 tracks and 91 vias.
It is built around the ATMEGA88-20AU, MAX31855KASA+T and L78L33ACZ, with the MOC3020M, C1815 and C945 among its other parts. Its parts include 17 resistors, 10 capacitors, 7 ICs, 7 connectors and 2 diodes. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
6
ATMEGA88-20AU
TQFP-32(7x7)-40℃~+85℃ 10bit 1KB 2.7V~5.5V 20MHz 23 512Byte 8 Bit 8KB AVR Built-in FLASH TQFP-32(7x7) Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)
MAX31855KASA+T
SO-8-40℃~+125℃ 14 1500uA 3V~3.6V Built-in temperature sensor SPI Thermocouple-to-Digital Converter SO-8 ADCs/DACs - Special Purpose ROHSMaxim Integrated (Analog Devices)ADCs/DACs - Special Purpose
L78L33ACZ
TO-92-30℃~+125℃@(Tj) 1 100mA 2V 3.3V 30V 40uV 49dB@(120Hz) 6mA Fixed Over Current Protection、Over Temperature Protection、Short Circuit Protection Positive TO-92-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSSTMicroelectronicsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MOC3020M
DIP-6-40℃~+85℃ 1 1.15V 4.17kV 400V 60mA No TRIAC DIP-6 Triac, SCR Output Optoisolators ROHSonsemiTriac, SCR Output Optoisolators
C1815
SOT-23-55℃~+150℃ 1 NPN 100nA 150mA 200 200mW 250mV 50V 5V 80MHz NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)C945
SOT-23-55℃~+150℃ 1 NPN 100nA 150MHz 150mA 200mW 300mV 400 50V 5V NPN SOT-23 Bipolar (BJT) ROHSALJBipolar (BJT)
README
README.mdAW reflow 3
awreflow3 is a reflow oven for soldering PCBs based on Andy's Workshop awreflow2. Technically, this repository contains the missing electric diagram and a layout for the oven, with some modifications in order to suit the parts I had lying around. The purpose of this repository is that you can also pull the files and modify them according to your needs.
Prerequisites
This project has been developed with KiCad
Notes
If you have to order the MOC3020 from the schematic you could get a MOC3023 instead and do away with the Q2 transistor and adjoining resistors.
Other things worth mentioning on the actual oven. Get one based on halogen heating elements just like Andy has done. Mine is a quartz elements oven and the PID is totally useless due to its very high inertia. I had to bypass the PID and hardcode some time intervals where power level is 0% and others where power is driven at 100%. At 1000W power and and 9L volume my oven can still bake a full tray of leaded solder PCBs, only a bit slower than others. Here is how it looks:
NOTE I currently have 9 extra PCBs already made. If you would like one drop me a message here and I'll deliver it for $3.44 + shipping + Paypal taxes
License
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100nF | Capacitors_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C2, C3, C4, C5, C6, C9 |
| 4 | 10k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R5, R10, R21 |
| 4 | 10k | Resistors_THT:R_Axial_DIN0516_L15.5mm_D5.0mm_P25.40mm_Horizontal | R13, R14, R16, R17 |
| 2 | 1k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R6 |
| 2 | 24pF | Capacitors_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C7, C8 |
| 2 | 300 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R8 |
| 2 | 47 (40mA) | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9, R11 |
| 2 | Varistor | Varistors:RV_Disc_D15.5_W3.9_P7.5 | RV1, RV2 |
| 2 | bead | Inductors_SMD:L_0805_HandSoldering | L1, L2 |
| 1 | 10nF | Capacitors_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C10 |
| 1 | 2k1 (1mA) | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 300 (10mA) | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 330nF | Capacitors_THT:C_Disc_D7.5mm_W4.4mm_P5.00mm | C1 |
| 1 | 360 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12 |
| 1 | ATMEGA88-20AU | Housings_QFP:TQFP-32_7x7mm_Pitch0.8mm | U1 |
| 1 | C1815 | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q2 |
| 1 | C945 | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q1 |
| 1 | CONN_5V | screw_terminal:em367502v | P1 |
| 1 | CONN_FAN | Connectors_Molex:Molex_KK-6410-02_02x2.54mm_Straight | P14 |
| 1 | CONN_ISP | Pin_Headers:Pin_Header_Straight_2x03_Pitch2.54mm | P13 |
| 1 | CONN_MAINS | Connectors_Phoenix:PhoenixContact_GMSTBVA-G_02x7.50mm_Vertical | P10 |
| 1 | CONN_OVEN | Connectors_Phoenix:PhoenixContact_GMSTBVA-G_02x7.50mm_Vertical | P9 |
| 1 | CONN_TH_COUP_A | Mounting_Holes:MountingHole_4.3mm_M4_Pad_Via | P8 |
| 1 | CONN_TH_COUP_B | Mounting_Holes:MountingHole_3.2mm_M3_Pad_Via | P15 |
| 1 | Crystal | Crystals:Crystal_HC50_Vertical | Y1 |
| 1 | Fuse | Resistors_THT:R_Axial_Power_L38.0mm_W6.4mm_P40.64mm | F1 |
| 1 | HC-05-6pin-header | Pin_Headers:Pin_Header_Straight_1x06 | U6 |
| 1 | L78L33ACZ | TO_SOT_Packages_THT:TO-92_Inline_Wide | IC1 |
| 1 | LINK | LEDs:LED_D5.0mm | D1 |
| 1 | MAX31855KASA | Housings_SOIC:SOIC-8_3.9x4.9mm_Pitch1.27mm | U5 |
| 1 | MOC3020M | Housings_DIP:DIP-6_W7.62mm | U4 |
| 1 | NOKIA5110 | Pin_Headers:Pin_Header_Straight_1x08 | U2 |
| 1 | OPTO-TRANSISTOR | Housings_DIP:DIP-6_W7.62mm | U3 |
| 1 | Rotary_Encoder_Switch | Rotary_Encoders:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_CircularMountingHoles | SW1 |
| 1 | TRIAC | TO_SOT_Packages_THT:TO-220_Neutral123_Vertical | D2 |
The 52 most common of 59 parts.
Questions
How big is the Cuptorul PCB?
It measures 100 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cuptorul use?
59 parts, built around the ATMEGA88-20AU, MAX31855KASA+T, L78L33ACZ and MOC3020M. 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 Cuptorul KiCad files?
From the kelogs/awreflow3 repository on GitHub, at the commit this page was made from: the board is cuptorul.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cuptorul design in my own project?
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).
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