Raspberry pi cnc hat. Raspberry Pi Motor & Servo HATs.

Intermediate Work in progress 8,175 Things used in this project Oct 9, 2015 · I wanted to convert a manual milling machine I had to CNC. It can run on a variety of Linux-powered ARM-based boards, such as Raspberry Pi, Odroid, Beaglebone and others. Program your Raspberry Pi. 1 star Watchers. Raspberry PI hat for parallel port CNC control. The Raspberry Pi CNC hat already has an Arduino on it. Mar 23, 2020 · I'm working on a build that's using a Protoneer Raspberry Pi CNC Hat v2. The purpose of this article is to help you configure your Raspberry Pi 4 to run LinuxCNC and to communicate with a Mesa 7I76E card via ethernet. Jan 16, 2015 · You can now create a dazzling display with your Raspberry Pi with the Adafruit RGB Matrix HAT. The female header going to the Pi is out of the way and well protected from shorts if it is not used. It is designed to connect with industrial CNC machines that sometimes require custom cables. . to/2QQxV00 SainSmart Genmitsu CNC 30 Raspberry Pi hats to control a CNC or a 3D printer Resources. For consistent and accurate control of servos, Waveshare has created this useful Servo Jul 8, 2019 · 2 stepper motors controlled from Raspberry Pi using Python code and an Adafruit HAT with a pair of 28BYJ-48 5v DC motors. Update 10/29/21 V40 - Optimized the model for 3D printing such that no rafts or supports are needed. $38. Beside grblHAL and its available driver "RP2040", I could not find (* a lot related projects or CNC Shields on the market. A CNC milling machine starts with a chunk of medium and removes parts of it to create an object, drilling out parts of the medium with great precision while moving InnoMaker HiFi DAC Audio Hat for Raspberry Pi. 6 This hat adds a DB25F Parallel Port to your Raspberry Pi. Nov 15, 2019 · I've made my FTD - Final Technical Decision. And I didnt want to make A heat box. The content in this article and below is for the third video in this series. It is supplied with a 16mm stacking header and threaded spacers, so it can be fitted to a Raspberry Pi 5 with the Raspberry Pi Active Cooler in place. Vamos montar esse HAT e co Pulse Train HAT controlling laser light show with Raspberry Pi, using PWM and galvanometer scanners. Also raspberry pi cnc hat v2 60 is one of the top 10 sellers in Protoneer in 2023. May 23, 2016 · For the uninitiated, a CNC milling machine is basically the opposite of a 3D printer. Apr 17, 2018 · Como configurar CNC com Raspberry Pi? Hoje nós vamos preparar um Raspberry Pi 3 com a imagem RPI CNC V4 usando o HAT, versão 2. Raspberry Pi DAC{plus} Raspberry Pi DigiAMP{plus} Raspberry Pi Codec Zero. 2 Gen1 HAT: Designed for Raspberry Pi 5, driver-free, plug and play; Connecting To PI5 Via 16PIN Cable: Based On 16PIN PCIe Interface Of Raspberry Pi 5 May 3, 2017 · It’s a Raspberry Pi HAT…or not. 60Nano-CNC-Pi. us is approved Raspberry Pi re-seller and carries all official Raspberry Pi boards and products. Features: Single Command Mode: In this mode only one command is sent to GRBL(G-Code Enterpeter) at a time. Resources. (3) Sanyo Denki Stepper motors Model # 103-H8221-6241 (6A) Spec Sheet enclosed. It's actually the big black square on the red board in the pictures on the Protoneer shop. Vou te apresentar uma mesa XY, que Web interface for controlling GRBL via a Raspberry Pi. Power-sourcing equipment is required. They can also do PWM up to 1. Configuration. Leve e compacta, fácil de instalar e remover, mais proteção para seus filhos. People have made a CNC control for the Propellor chip and I would be amazed Jul 29, 2019 · Raspberry Pi 3b + Raspberry Pi Zero: Quadrillionaire: Non R/C Items (FS/W) 1: May 15, 2017 08:20 AM: New Product: New FPV option - FPV HAT for Raspberry Pi: FernRF: FPV Equipment: 0: Mar 26, 2017 02:20 PM: Discussion: Raspberry Pi robot building kit: Raspberry Pi 3B + AlphaBot + Camera: GeekBuying: Vendor Talk: 0: Feb 05, 2017 04:53 AM: Help! This CNC Machine is very significant because we managed to run the machine using a credit card size computer, aka. The Raspberry Pi Pico HAT Expansion is an input/output expansion board designed for the Raspberry Pi Pico, which provides one set of 2x20 pin headers in the form of a Raspberry Pi Header along with one set of 2 x 20 pins. I ordered it as I was going up a blind alley trying to write code myself. Available in our range: Raspberry Pi Sense HAT, Automation HAT, PoE HAT, Unicorn HAT, PiGlow, Drum HAT, Piano HAT, Explorer HT Pro, Breakout Garden HAT, Pan-Tilt HAT and more. Please see the assembl Apr 1, 2020 · A simple enclosure designed to house a Raspberry Pi version 4 with Protoneer CNC Hat version 2. This HAT plugs into your Pi and makes it super easy to control RGB matrices such as those we stock in the shop and create a colorful scrolling display or mini LED wall with ease. An open source project to use a Raspberry Pi 4 as a CNC controller using LinuxCNC. I've seen several posts where people have got their boards working with NC switches but I can't manage to find any specifics on the wiring. Use the toy I removed the PI connector mount because the heat sink is to tall for the tinker board. Extra Codec Zero configuration. I realized that the Nano could talk to either the USB or the Pi. Jan 2, 2015 · The Raspberry Pi is a wonderful little computer, but one thing it isn't very good at is controlling DC Servo Motors - these motors need very specific and repetitive timing pulses to set the position. so I'm mounting the tinker board and pi cnc hat side by side with a jumper cable. Features Oct 25, 2023 · The camera connector looks like the 22 pin version found on all flagship Raspberry Pi boards — with the exception of the Raspberry Pi 5 and Zero range, which use 15 pins. Having no experience with CNC at all, I thought it would be nice to have something easily debuggable. The MCP23017 HAT from ModMyPi is the perfect I/O expansion HAT for your Raspberry Pi (any 40-pin version). Compatible with Raspberry Pi 4 and Raspberry Pi 3B+. io and the Raspberry Pi Foundation. In the second video entitled “How to configure CNC with Raspberry Pi” we prepared this microcontroller with the image RPI CNC V4 using HAT version 2. The NEMA-17HS4023 is introduced here, which is a version of the NEMA 17 that has dimensions 42mm x 42m Adafruit Industries, Unique & fun DIY electronics and kits : Pi HATs & Bonnets & add-ons - Tools Gift Certificates Arduino Cables Sensors LEDs Books Breakout Boards Power EL Wire/Tape/Panel Components & Parts LCDs & Displays Wearables Prototyping Raspberry Pi Wireless Young Engineers 3D printing NeoPixels Kits & Projects Robotics & CNC Accessories Cosplay/Costuming Halloween Reseller and Mar 14, 2023 · The Protoneer RPI CNC Board combines a real-time CNC controller (Micro-controller running GRBL) with a powerful credit card size computer - a Raspberry Pi! By connecting the two systems, the CNC board created an ecosystem where the Raspberry Pi provides benefits such as: Processing power, connectivity (IOT) and a well supported community. there are 2 versions I have the orignal. 58, and then configured the GRBL. 0 x1 interface for fast peripherals; Raspberry Pi standard 40-pin GPIO header; Real-time clock; Power button Waveshare 26847 - PCIe To USB 3. These boards support 'HATs' (Hardware Attached on Top). The Raspberry Pi M. A small SoC heatsink is also included. Aug 11, 2023 · [Phil Barrett] designed a new CNC controller breakout board called the PicoCNC which uses the Raspberry Pi Pico RP2040 module and grblHAL. It can be used with any application that needs a DB25 serial port. For use with Raspberry Pi Model Zero, A+, B+, Pi 2, Pi 3, Pi 4, or Pi 5 (any Pi with a 2 x 20 header) can be used with the Model A or B if you use a tall 2 x 13 header instead of the included 2 x 20. Read on to learn more! All3DP; All3DP Pro; Title: E:CodeKicadProductionRPIRPI-CNC Board 2. Pulse Train Hat | Support Site for the Raspberry PI Pulse Train Hat Similar Threads: Pulse Train Hat for Raspberry Pi Jog Control of a CNC Machine using Instant Commands With this example, we show how to use the PTHAT as a simple Jog Controller. Set up your Raspberry Pi. This is for who want to create a homemade DIY CNC machine. The board allows you to plug any* HAT designed for the 'Model B' Raspberry Pi with the Raspberry P This guide documents how I set up a Raspberry Pi 4 to run LinuxCNC 2. 60. Use this HAT to add PoE+ capability to your Raspberry Pi's Ethernet port. Feb 21, 2018 · Ever wanted to keep your computer away safe the dust and chips of your CNC router? With a Raspberry Pi running Universal GCode Sender, you can keep your lapt I have a Protoneer CNC hat on a Raspberry Pi 4 and it works great with bCNC and UGS running on the Pi, but I'd like to control my machine with my… Coins 0 coins What is a HAT?Which one do you need for a Raspberry Pi CNC project? https://www. Protoneer provides an image for the Raspberry Pi that has all of the software you'll need installed, and includes a utility for flashing the Arduino on the hat if needed. The Pi communicates with the 7i76e over Ethernet. 4 out of 5 stars 5 ↳ Raspberry Pi CNC Board; ↳ Current Version(2. If you do not have access to a Raspberry Pi or a Sense HAT, no need to worry! You can still follow along with a Sense HAT emulator created by a partnership with trinket. Featured Sort by. 60 Comes with DRV8825 stepper drivers Uses GRBL to allow for open source CNC machine control to occur. £10 / $10. WM8960 Hi-Fi Sound Card HAT for Raspberry Pi 5/Pi 4B/3B+/Pi3B/Pi Zero 2W/ Zero W/Zero WH, Support Stereo Encode/Decode, Play/Record, Directly Drives Speakers to Play Music 3. 60 - GRBL v1. Quick view Out of stock. 1 Compatible at the best online prices at eBay! Free shipping for many products! This Raspberry Pi Hat allows you to connect a 25 pin serial cable. Jun 17, 2015 · For updates on how this board is progressing please subscribe to our CNC Board Mailing list : Raspberry Pi / Arduino CNC boards – Mailing List; The Raspberry Pi CNC web interface is available from GitHub : Raspberry Pi CNC Web Interface; We have a few of these boards available : Raspberry Pi CNC Boards – Online Store; Wiki page with setup 卓上CNCルータを使うと、ちょっとした電気回路基板を試しをすぐに手元で試せるのでDIYレベルのプロトタイピングに非常に重宝します。今回はネットショップでも購入できる卓上CNCルータを利用して、ラズパイのリモートから操作しながらの基板起こしする準備のお話を取り上げます。 Manufactured in the UK, this case brings together the Raspberry Pi 4, Cluster HAT & 4 x Raspberry Pi Zero's into one simple, neat package. Raspberry Pi Engineer & Forum Moderator Posts: 33639 Joined: HATs and other add-ons Jan 9, 2024 · This PoE+ HAT is NOT compatible with the newest Raspberry Pi 5 boards. CERN-OHL-S-2. With its full array of sensors, the Sense HAT was originally developed for use on the International Space Station, as part of the educational Astro Pi programme run by the Raspberry Pi Foundation in partnership with the European Space Agency. 1 watching Forks. External driver boards (4x) for Genuine Protoneer Raspberry Pi CNC hat. $2. Users attaching an add-board to the model A or B Pi usually have to work out which drivers are required for their specific board, and then edit the relevant Linux files to make them load at boot time before the board is usable (or load them by hand from the command line). Your call as to which to use. Having a couple of Pi's laying around Python and GPIO came to mind. txt" remove "Console" settings. Raspberry Pi Motor & Servo HATs. Hardware and wiring. Protoneer RPi-CNC Hat V2. Connects directly to the Raspberry Pi board, no additional cables required, no soldering. The 5 axis CNC Breakout board is really inexpensive and available everywhere, and this hat is the simplest way to connect it to the Pi. co. Encontre raspberry pi cnc hat com frete grátis, devolução grátis e entrega rápida. From han Jan 10, 2021 · protoneer hat is for 3D printers (-: those drivers are really tiny compared to what is needed for a NEMA23 motor. Different from ReSpeaker 2-Mics Pi HAT, ReSpeaker 4-Mic Array is developed based on AC108, a highly integrated quad-channel ADC with I2S/TDM output transition for high definition voice capture, which allows the device to pick up sounds in a 3 meters radius. Coming in red/white or black, the official case comprises three plastic sections that snap-fit together, so assembly is a cinch. A HAT is an add-on board that conforms to the HAT specifications. Feb 14, 2019 · I'm building a small router/laser engraver from stuff i have been collecting over the years. py” file active. 60 for the controller. Wonrabai Waveshare POE HAT for Raspberry Pi A versatile motor, servo, and audio driver HAT for Raspberry Pi. Important notes: Pictured fan is optional and not included - available here This case is only compatible with the Raspberry Pi 4 Simple assembly required. Apr 6, 2023 · What options are available for Raspberry Pi Hats to run LinuxCNC? My CNC configuration so far is as per the below: 1. If the hat is used to connect to the CNC machine with the db25 cable, Sep 17, 2023 · Sense HAT Emulator. 60Added Grove connector that the pins(3. Readme License. Vamos montar esse HAT e configurar o GRBL. 0 license Activity. One stop shop for all your Pi needs. May 20, 2024 · Official Raspberry Pi 5 Case Raspberry Pi. And yes, absolutely, it would be cheaper to buy one like this : https://amzn. Waveshare 16595 - Ethernet / USB HUB HAT For Raspberry Pi, 1x RJ45 Ethernet Port, 3x USB Ports This Raspberry Pi hub HAT provides more USB capability to your Pi, plus a RJ45 Ethernet port, which is great when you need a stable wired Ethernet Adafruit Industries, Unique & fun DIY electronics and kits Adafruit CRICKIT HAT for Raspberry Pi : ID 3957 - Sometimes we wonder if robotics engineers ever watch movies. 60 pi hat just for the hell of it. You may have tried to control a servo using a Pi, but were limited by the number of PWM outputs and jittering movement. Started out with default raspbian. Jul 26, 2023 · If you're looking to enhance and simplify your DIY CNC setup with LinuxCNC, Raspberry Pi 4 is your friend. Showing 1 - 48 of 51 products Sort by. Contribute to windrad6/pi-cnc-hat development by creating an account on GitHub. Oct 13, 2012 · Raspberry CNC. PiShop. This is useful for hobby grade CNC routers or mills to use the Raspberry Pi as the main controller. Raspberry Pi add-ons, HATs, accessories, Starter Kit, Media Center kit, RetroPi Arcade kit, Ultimate Kit, and many other project kits. Feb 12, 2019 · ReSpeaker 4-Mic Array for Raspberry Pi is a quad-microphone expansion board for Raspberry Pi designed for AI and voice applications. Tudo isso dá continuidade ao assunto que abordamos na semana passada: Plotter e Laser com Raspberry Pi CNC HAT , quando montamos um plotter laser com uma mesa XY. This video shows how I use LinuxCNC on a Raspberry Pi 5 to control my CNC Router. Postman Pat has brought my long awaited Protoneer CNC HAT for Raspberry Pi. With a 3D printer, you’re adding medium from a nozzle to a blank space to create an object. 2 Gen1 HAT For Raspberry Pi 5, PCIe To USB HUB, 4x High Speed USB Ports. Jul 31, 2014 · On the Raspberry Pi models A and B, the GPIO connector has 26 pins. 2 HAT+ conforms to the Raspberry Pi HAT+ specification and is autodetected by the latest Raspberry Pi software/firmware. Expand the capabilities of your Raspberry Pi with a Raspberry Pi HAT or pHAT. This hat has jumpers that allow for the most common pin jumpers. I'm pretty new to this (first DIY build) so maybe someone can help me out. 58. InnoMaker HiFi DAC Audio Hat for Raspberry Pi. Add to Cart. 51; ↳ Other Versions; ↳ Raspberry Pi CNC Board - Raspbian Image; ↳ NANO-ARM - Arduino Zero Compatible board; ↳ Raspberry Pi - MegaPi Hat; ↳ Arduino CNC Shield; ↳ Current Version(3. Instead of asking the Pi Linux kernel to send these signals, pop on this handy HAT or Bonnet! They bot add the capability to control 16 Servos with perfect timing. You can therefore . The Adafruit 16-Channel 12-bit PWM/Servo HAT will drive up to 16 servos or PWM outputs over I2C with only 2 pins. The Raspberry Pi LinuxCNC port uses the GPIO (General Purpose Input/Output) pins in the pin header on the Pi. Sat Oct 13, 2012 4:25 pm . Why: Many of us dream of making our own CNC router / engraver but get bogged down in the details and unknowns. the new version has onboard flash. PyCNC is a free open-source high-performance G-code interpreter and CNC/3D-printer controller. Furthermore, being inexperienced I Jan 25, 2021 · The NEMA 17 is a widely used class of stepper motor used in 3D printers, CNC machines, linear actuators, and other precision engineering applications where accuracy and stability are essential. The 2nd motor adds all sorts of pos #DIY#CNC#5axis#awesome_cnc_freek How to set up a CNC unit to control. The HAT features two removable MCP23017 DIP IC's, which utilise two i2c pins (which can be shared with other devices if required), and in exchange gives your Raspberry Pi an additional 32 GPIO ports! Each I/O pin can be configured as an Raspberry Pi DAC Pro. SPECIFICATION. Get latest rpi image and copy to SD card; edit "sudo nano /boot/cmdline. 0 forks The Raspberry Pi is an awesome single-board computer, however it's not that good at providing precise PWM output. Apr 10, 2018 · Para nosso projeto utilizamos um laser de 15 watts. Raspberry Pi CNC Quick Start Guide Dec 21, 2018 · 附加在樹莓派(Raspberry Pi)開發板上的各種硬體擴展板(HAT)越來越多，幾乎每隔幾個月就會新產品上市。透過HAT添加更多自定義功能，讓工程師與創客在Raspberry Pi上不斷擴展出更多的設計，特別是具有獨特功能以及提供更多開發選擇的精選HAT… Purpose: Learn how simple it is to use the Raspberry Pi CNC Hat from Protoneer by testing it out on a CDROM stepper motor. Mar 18, 2017 · Re: Protoneer raspberry pi cnc hat gstprecision I would suggest looking at the asus tinkerboard. If they did, they'd know that making robots into servants always ends up in a robot rebellion. Genuine Protoneer Raspberry Pi CNC hat v2. You would connect the Raspberry Pi just like how you would connect it with any other computer. Ainda, vamos usar o GRBL, mas de uma forma diferente, pois será com o Raspberry Pi 3. Some people warned me that I should use a realtime system. The tool has a scripting window on the left-hand side, with a “main. Create a toy chatter box. 95. Also, in the last picture i mapped out how everything is connected to give you a better understanding of the electronics. With a Raspberry Pi Pico we do have a powerful controller for an affordable price. I was abl The Raspberry Pi Sense HAT V2 is the perfect product to learn about programming and how we interact with the world around us. E, ao invés de empregar um Arduino Uno, como geralmente ocorre, vamos usar um Hat, que é como se fosse um Shield para Raspberry, da Protoneer (Electronic Prototyping Specialists). Blackbox is much much better, but of course you can always use an Uno (or even a hat) with external drivers. This is a simple and inexpensive way to test the waters using components you may already have laying around. Scripts used to setup a Raspberry Pi for use with the Raspberry Pi CNC board. Specifications: New in 2. Install LinuxCNC to a Raspber Apr 21, 2023 · The Raspberry Pi is a small single board computer that . Hardware versions. , pi, raspberry, atmega328p CNC Design Limited launch a new Add-on Hat for the Raspberry PI computer that will make motor control easy, fast and accurate. Bring your mechanical inventions, creations, and contraptions to life! Inventor HAT Mini helps transform a Raspberry Pi computer into a robot, prop, kinetic sculpture, creepy automaton, or any other exciting moving thing. $15 at Amazon. It's embedded. Apr 17, 2018 · Hoje nós vamos preparar um Raspberry Pi 3 com a imagem RPI CNC V4 usando o HAT, versão 2. pdf Created Date: 6/4/2020 5:47:14 PM I removed the PI connector mount because the heat sink is to tall for the tinker board. the Raspberry Pi. Sep 28, 2023 · Gigabit Ethernet, with PoE+ support (requires separate PoE+ HAT, coming soon) 2 × 4-lane MIPI camera/display transceivers; PCIe 2. The new CNC Parallel Port hat allows the 5 axis breakout board to connect American Raspberry Pi Shop. After taking Chris Gammell’s KiCAD lesson I wanted to make a Raspberry Pi HAT, but I typically don’t use a Raspberry Pi. Stars. We have connected the PTHAT to our CNC machine at work as a test. Standard: IEEE 802. 6, u The Raspberry Pi’s GPIO (General Purpose Input Output) allows it to talk to ‘real world things’ – other hardware and electronics – by using code to tell these things what to do and when. A Parallel port is basically a little bit of buffering wrapped around some memory-mapped pins, which are slightly inferior to GPIO for being Dec 19, 2018 · Would it be possible to run linuxcnc on a raspberry pi and then connect a parallel port brake out board to the pi? Then I could connect a touch screen to the pi if still possible when some type of hat is installed. A micro SD card reader to load the pre-made Raspberry Pi image; CNC Hardware - Stepper Motors + Pololu Drivers, Linear rails and all the mechanical bits. uk/gp/product/B07QKM42L7/ref=as_li_tl?ie=UTF8&camp=1634&creative=67 Find many great new & used options and get the best deals for Raspberry Pi 3 + Protoneer RPi CNC Hat V2. 3at-2003 PoE; Input voltage: 37-57 V DC, Class 4 device; Output power: 5 V May 28, 2022 · Neste vídeo explico em detalhes o funcionamento do meu painel de controle DIY, seus componentes como o fantástico Raspberry Pi e seu CNC Hat Protoneer 2. Attach the HAT. PCIe TO USB 3. 8 along with a Mesa 7i76e FPGA board. 58; ↳ Version 2. The middle section includes a clear insert with a fan that connects to Raspberry Pi 5’s Fan port. Mute and unmute the DigiAMP{plus} Getting started. The Raspberry Pi boards with 40W GPIO headers (Model B+ and onwards) and have been designed specifically with add-on boards in mind. I have soldered on EVERY single jumper to the 2. 3V only). Each serial pin is acce Pi Australia is run by Little Bird Electronics. amazon. Já pensou em montar um plotter laser utilizando um Raspberry Pi CNC Hat? Pois, é este projeto que vamos desenvolver hoje. Dec 27, 2021 · Raspberry Pi 400 Raspberry Pi Pico General SDK MicroPython Other RP2040 boards; Software Raspberry Pi OS Raspberry Pi Connect Raspberry Pi Desktop for PC and Mac Other Android Debian FreeBSD Gentoo Linux Kernel NetBSD openSUSE Plan 9 Puppy Arch Pidora / Fedora RISCOS Ubuntu; Ye Olde Pi Shoppe May 5, 2024 · Besides providing ventilation holes for better cooling, the HAT also comes with four CNC screws for easy installation. Featured Best selling Alphabetically, A-Z Alphabetically, Z-A Price, low to Oct 10, 2010 · LinuxCNC is control software that will allow you to control your CNC machine with either a parallel port or an ethernet connection. May 15, 2018 · There is GRBL for Arduino, there was an attempt to put a port of LinuxCNC on the Beaglebone and on the the Raspberry Pi. Ships from Australia. The HiFi DAC Hat compatible with Raspberry Pi Zero, Zero W, 3B, 3B+, Pi 4 with the 40-pin connector. You can find further information about the concept in this Youtube video: It is designed to work combined with the RPI Levelshifter Hat and a CNC Breakout Board with a parallel interface. 60) ↳ Version 2. Easy to get more beautiful and fantastic sound by this RPI+DAC HiFi suits. I'd like to thank GrabCad contributor Hasanain Shujo for the RPi4 and Protoneer Hat models. HATs are not backward compatible with original Raspberry Pi 1 models A and B. Well, let's challenge that thought. You can connect dupont wires to create a circuit yourself, or attach an add-on board or HAT designed for a specific purpose. Has anyone here used the protoneer hat for the raspberry pi? Was thinking it would make a good all in one box (raspberry pi, drivers, powersupply, screen and flip down type keyboard. 51) ↳ Other Versions Raspberry pi CNC Controller (SBC-CNC Software) To Download the software visit the following google drive location to download the operating system image for your respective single board computer. It packs a bunch of features typical of these controllers,… Raspberry Pi 3B+ / 3B / 2 or any Raspberry Pi with 20x2 pin header + accessories like screen, keyboard, mouse 16 GB micro SD Card or bigger. sd fd of bb dl tq ec gv bj xq