This is USB controlled relay opto-isolated board with 16 SPDT relays. You can use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenoids and others. It can help you building projects like robotics and home automation.

This build surface is designed for 3D printer heated bed, which is for better adhesion during printing and makes the prints smooth.

• 【Excellent adhesion】This build surface will help prints adhere to a print bed solidly and effectively prevent wrapping.
• 【Easy to install】Installation is a breeze while you don't need to worry about causing bubbles in the first layer.
• 【Easy to remove】Unlike regular tape, it can be removed from the print bed easily and cleanly without damaging your printer.
• 【Great durability】You can use the same surface for many times before wear and tear
• 【Compatibility】This can work great with various filaments like TPU, PLA, ABS and so on
• 【Suitable for many 3D printer】You can cut it for the perfect size to make it customized for your 3D printer.

This brand new robotic arm is equipped with 3PCS NEMA 17 stepper motors. It moves and rotates much more smoothly than many other robotic arms in the market.

• Can work with SainSmart Mega 2560 board
• You can add a clamp on it, this requires extra servos and wire connection
• Suitable for amateurs and who has experience in robotics.

This is Sainsmart 4.3 inch TFT LCD module,It is 100% compatible with the normal MCU like ARM AVR PIC and 8051,especially on arduino family such as arduino due and arduino mega2560(R3).The module uses the LCD controller Chip SSD1963 with 4.3 inch LCD including the touchscreen.

Use TM1638 digital tube drive chip to drive common cathode LED digital tube. Buy the module provides an example program. The electric motor protection : overload protection, wrong level protection and stall lock current protection.

• Carveco Maker, the first step to making great products on your CNC. Featuring easy-to-use design tools and the ability to create highly accurate, dependable toolpaths; Carveco Maker is a great, affordable option to pair with your new CNC router or engraver.
• Whether you’re a weekend maker, traditional craftsmen, or entirely new to working with a CNC router or engraver, Carveco Maker provides you with all the tools you need to create high-quality 2D and 3D products, quickly and easily.
• Carveco Maker’s simple yet powerful design and make features guide you through the entire process, from conceptual sketch to finished design.
• It’s the perfect introduction for woodworkers, sign-makers or makers looking to produce artistic, personalised products on their own CNC hardware.
• Enjoy the promotional price of $150 for this Carveco Maker 12-Month Subscription. License purchase is non-refundable. The license key will be emailed to you within 24 hours.

ST-DM542 is a cost effective, high performance CNC two phase stepper motor driver. Using the bipolar constant current PWM current control mode that make the motor runs smoothly and quietly. The maximum output of 4.2A drive current is suitable for NEMA17 and NEMA23 stepper motor which height is less than 112mm.

• DC power input type: 20V ~50V
• Output current: 1 ~4.2A
• Micro-step: 2、4、8、16、32、64、128、5、10、20、25、40、50、100、125
• Protect form: over-voltage, over-current protection
• The maximum pulse rate is 200KHZ
• Dimensions: 118mm*88mm*33mm 4.6”*3.5”*1.3”
• Weight: 268g 0.59lb                                      
• Working environment: temperature -15℃~50℃/5℉~122℉, Humidity<90%

CR-8 is a combination of 3D printer and engraving machine. It features with laser engraving function; standard 0.4mm nozzle diameter (can be replaced to 0.3 / 0.2mm).

• Only takes about 10 minutes to assemble, easy and convenient
• Patented design MK10 nozzle with all-over safety protection structure, scald-proof, scratch-proof, and against electric shock
• Supports online and SD card off-line printing
• Only ships to European countries.

Coming Soon. Product and price will be revealed on Dec 26th (00:00 EST).

Coming Soon. Product and price will be revealed on Dec 27th (00:00 EST).