(1) We don’t adapt wade extruder, we upgrade the J-head to all metal MK8 extruder. If you use wade extruder etc, every time when you change the filament, you have to take them apart and calibrate it all again. it takes hours sometimes, so I would suggest you to use long distance extruder as below. it takes you only within 1 minute to change the filament.
(2) We use well-designed standard MK8 extruder, high quality stepper motor and direct drive extrusion wheel, more accurate, quick heating and fluent injection, we have made necessary design to prevent “jammed” problem. printing speed up to 100mm/s.
(3) We offer LCD 2004 controller with SD card design support totally off-line print, no computer needed while printing. then you don’t have to spare one computer for your 3D printer use only. RepRap Prusa i3 3D printer with LCD screen, you can adjust the printing parameters via the LCD screen rotary knob, this would reduct your calibration time a lot !

Bit diameter: 0.4mm
The bit length: 16mm
The length of shank: 20mm

Sainsmart A4988 driver is a carrier board or breakout board for Allegro’s A4988 DMOS Microstepping Driver with Translator and Overcurrent Protection by Pololu; we therefore recommend careful reading of the A4988 datasheet before using this product. This stepper motor driver lets you control one bipolar stepper motor at up to 2 A output current per coil.
SainSmart Mechanical Endstop perfect for any 3D printer (Including Prusa Mendel i2, Prusa i3, MendelMax, Rostock etc…) also for use on CNC machines and other electronic applications. Breakout board for the microSD socket that is not much bigger than your fingernail. Compatible with the SPI interface found on any SD card, this tiny form factor was created for cell phone storage and is perfect for your next 3D printer project! Board comes fully assembled and tested.The bare socket is available.
Sainsmart RAMPS 1.4 is a Mega Pololu Shield, or RAMPS for short,designed to fit the entire electronics needed for a RepRap in one small package for low cost. RAMPS interfaces an Arduino Mega with the powerful Arduino MEGA platform and has plenty room for expansion. The modular design includes plug in stepper drivers and extruder control electronics on an Arduino MEGA shield for easy service, part replacement, upgrade-ability and expansion. Additionally, a number of Arduino expansion boards can be added to the system as long as the main RAMPS board is kept to the top of the stack. This board is mostly based on Adrian’s Pololu_Electronics and work by Tonok. Copper etch resists methods suggested by Vik. Also inspired by Vik’s work with EasyDrivers. circuit design based mostly on Adrian’s Pololu_Electronics Joaz at RepRapSource.com supplied initial pin definitions and many design improvements. Much inspiration, suggestions, and ideas from Prusajr, Kliment, Maxbots, Rick, and many others in the RepRap community.

Suitable for circuit boards, electronic, SMT, mold, metal processing, telecommunications and other industries .
Bit chip space is large: small chip resistance, chip and smooth, heat a small drill, drill reduce pollution;
Extraordinary cutting edge sharpness: As a result of nanotechnology and advanced grinding technology, bit more sharp cutting edge than before, can reduce the cutting force, reduce the broken drill rate, improve the hole wall quality;