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The Graphic LCD Controller is a graphical user interface to control your 3D printer without the need for a direct computer connection. This controller has an integrated SD card reader, a rotary encoder with push button and a 128x64 graphic LCD display, allowing all types of actions from calibration to axis movements and direct...

These plates can be used to build a compact gantry that will travel along the 20mm edge of our V-Slot extrusion. They can be used on any side of 20x20mm V-Slot, or the thin sides of 20x40, 20x60 or 20x80 V-Slot. Three slots along the edges that face 'along' the extrusion...

Punch in your secret key into this numeric matrix keypad. This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so...

Trinket may be small, but do not be fooled by its size! It's a tiny microcontroller board, built around the Atmel ATtiny85, a little chip with a lot of power. We wanted to design a microcontroller board that was small enough to fit into any project, and low cost enough to use without hesitation....

This breakout board is the simplest way to create a project with a single "toggle" capacitive touch sensor. No microcontroller is required here - just power with 1.8 to 5.5VDC and touch the pad to activate the sensor. This sensor is a toggle output type: touch-on then touch-off. That means that when a capacitive load...

Beguiled by a fancy new chip that is only available in a SOIC or (T)SSOP pinout? This breakout PCB set will make your life much much easier and get you prototyping faster than ever. One side has a 14-TSSOP pin out with traces going to two rows of 0.1" spaced holes, the other...

These are standard corner brackets, ideal for connecting two lengths of V-Slot extrusion together at a 90° angle. They measure 20 x 20 x 17mm, and have a 4mm wide 'tab' on each face to help align the bracket with the extrusion.

This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, it's very efficient (over 90% efficient when driving an 8Ω speaker at...

These flex couplers are ideal for attaching 8mm threaded rod or lead screw to standard NEMA 17 stepper motors. They feature two grub screws per shaft, so they grip strongly and won't slip! Flexible couplers are great because they allow for slight misalignments in the coupled shafts - so even if...

What is better than smart RGB LEDs? Smart RGB+White LEDs! These NeoPixels now have 4 LEDs in them (red, green, blue and white) for excellent lighting effects. Make your own smart RGBW LED arrangement with the same integrated LED driver that is used in our NeoPixel LED strips. The NeoPixel is...

These microswitches make excellent endstops for any RepRap. Their small size makes them ideal for more compact builds – such as a Prusa Mendel, where they are small enough to let you take full advantage of each axis. Each switch has two holes that will suit either small cable ties or...

These high quality aluminium GT2 pulleys fit a 5mm shaft, making them ideal for use with NEMA-17 stepper motors or M5 mounting hardware. They will work with any standard GT2 belt up to 7mm in width, and feature a 60-tooth profile. These pulleys include 2 M4 grub screws for a strong grip, and come...

Crucial to almost any extrusion-based build, the glue used to hold everything together - tee nuts! Made from zinc-plated carbon steel, these are pretty sturdy! These are our standard tee nuts. They're cheap, they're solid, and they do the job well. These feature an M5 thread, making them compatible with the...

Punch in your secret key into this numeric membrane keypad. This keypad has 4 buttons, and since every key has its own wire line, no matrix code is required - just treat these like everyday switches. The membrane is soft and has a removable paper backing to expose a strong adhesive so you can...

These stepper drivers are built around TI's DRV8825 stepper driver IC. The DRV8825 supports higher currents than the common A4988, making it a popular choice when a little extra grunt is required. The DRV8825 features up to 1/32 micro-stepping – meaning your printer will be not only precise but also quiet! These...

These precision-made full-sized wheels are compatible with our V-Slot aluminium extrusion, and can be used to achieve smooth linear motion. For builds involving a lot of weight or force, you might want to check out our extreme polycarbonate wheels - they're a little pricier again, but much, much stronger! Each and every wheel...