RC Helicopter
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V3.0 Engraver CNC Shield+R3 Board+4pcs A4988/DRV8825 Driver Expansion Board for 3D Printer Set Kit
18
Shipping to: United States |
Express delivery: 7-12 business days |
Standard delivery: 15-25 business days
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Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
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You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471Details:
CNC Shield Board
Version: 3.0
Color: Red
Size(L*W*H): 68 x 53 x 18 mm
Voltage: DC 12~36 V (At the moment only the DRV8825 drivers can handle up to 36V so please consider the operation voltage when powering the board.)
Features:
1. Uses removable A4988 or DRV8825 compatible stepper drivers.
2. The extension board can be used for carving machine, 3 d printer driver expansion board
3. GRBL 0.8 compatible. (Open source firmware that runs on an that turns G-code commands into stepper signals)
4. PWM Spindle and direction pins,4-Axis support (X, Y, Z , A-Can duplicate X,Y,Z or do a full 4th axis with custom firmware using pins D12 and D13)
5. Compact design. Stepper Motors can be connected with 4 pin molex connectors or soldered in place.
6. Please note that this is an unassembled kit and Basic soldering skills are needed.
- A4988 Stepper Motor Driver
Color: Red
Size(L*W*H): 20 x 15 x 10 mm
Thermal shutdown circuitry: Yes
Crossover-current protection: Yes
Ground fault protection: Yes
Load short-circuit protection: Yes
Compatible logic supply: 3.3V and 5 V
Five selectable step modes: full, 1/2, 1/4, 1/8 and 1/16
Features:
1. Mix with slow current decay modes.
2. Internal UVLO and Low RS (On) Output.
3. Automatic current decay mode detection/selection.
4. Synchronous rectification for low power dissipation.
5. Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.
- DRV8825 Stepper Motor Driver
Color: Purple
Size(L*W*H): 20 x 15 x 10 mm
Driving current: 2.5A
Overheating Circuit Protection: Yes
Undervoltage Lockout: Yes
Cross Current Protection: Yes
Short circuit protection to ground: yes
Load Short Circuit Protection: Yes
Six selectable step modes: full, 1/2, 1/4, 1/8, 1/16, 1/32
Features:
1. Maximum current 2.5A
2. Support up to 32 subdivisions
3. 4-layer PCB board, better heat dissipation performance
4. The internal resistance of the chip is smaller, the heat generation is lower, and the heat dissipation is better
- R3 Board
MCU: ATmega328
Clock speed: 16 MHz
USB interface: ATmega16U2
Operating voltage: 5 V
I-I / O pin output current: 40 mA max
3.3 V output current: 150 mA max
Digital I/O pins: 14 (including 6 with PWM capability)
Analog input pins: 6
EEPROM: 1 kB
Static RAM (SRAM): 2 kB
Flash memory: 32 kB
Size(L*W*H): 68 x 53 x 10 mm
Package Include:
【Type1】 :
1×CNC Shield
1×R3 Board
4×A4988 Driver Kit
【Type2】 :
1×CNC Shield
1×R3 Board
4×DRV8825 Driver Kit
