Tronxy X3S 3D Printer Review – Part 3: Upgrades to Fix Bed Leveling Issues (Permanently)

Karl here. I have had the Tronxy X3S 3D printer for a while now. It prints well but as I mentioned in previous articles I had to level for every print. Actually near the end I would just overpower the stepper motors while the skirt was printing and level. Leveling front to back was not affected. Only the z height. So this worked but it was frustrating. Before that I tried several different things to mitigate. I thought maybe the endstop for Z homing was inconsistent and replaced it. I tried heating the bed for extended period of time thinking that maybe some thermal expansion. Didn’t help. I finally did a major change to the X carriage with success. I even moved the printer to our local library and the bed stayed leveled for a demo. I call this a success, and will show how I did it. Inspiration for […]

Zidoo H6 Pro (Allwinner H6) TV Box Review – Part 2: Android 7.0 Firmware

Zidoo H6 Pro is the very first Allwinner H6 based 4K TV box. The Android 7.0 device support H.265, H.264 and VP6 4K video decoding, comes with fast interfaces such as USB 3.0, and network connectivity with Gigabit Ethernet and 802.11ac WiFi. I’ve already checkout the hardware in the first part of the review entitled “Zidoo H6 Pro (Allwinner H6) TV Box Review – Part 1: Unboxing & Teardown“, and since then, I’ve had time to play with the TV box, and report my experience with Android 7.0 in this second part of the review. First Boot and OTA Firmware Update I’ve connected a USB keyboard and a USB dongle with RF dongles for an air mouse and gamepad on the two USB ports, a USB 3.0 hard drive to the single USB 3.0 ports, as well as HDMI and Ethernet cables before powering up the TV box. I also […]

Khadas VIM2 Board Review – Part 1: Unboxing and Dual Tuner Board

Khadas VIM2 board is the successor of Khadas VIM board, replacing Amlogic S905X by a slightly more powerful Amlogic S912, but that’s the connectivity features that really makes it stand apart from the first version with Gigabit Ethernet, 802.11ac WiFi and Bluetooth 4.2. It also exposes a few extra I/Os via pogopins. and among the three variants, two comes with 3GB RAM, and up to 64 GB storage. The company (Shenzhen Wesion) sent me one of the boards, together with various accessories, and I’ll start the review of the board by checking out the hardware and accessories, before testing the board further in another post. I received two packages: one book-like with Khadas marked on top, and another one with various other items. The first package includes the board, a USB to USB type C cable, and a card showing the main specifications, and supported operating systems: Ubuntu 16.04, Android […]

HiMedia Q10 Pro TV Box Review – Part 1: Unboxing and 3.5″ SATA Bay

HiMedia Q10 Pro Android TV box was launched in March of last year, equipped with a HiSilicon Hi3798CV200 quad-core ARM Cortex A53 processor, 2GB RAM, 16GB flash, and a SATA bay for 3.5″ drives. When I wrote a post about the Best Android TV boxes, on commenter mentioned that while NVIDIA Android Shield was the best box for streaming, he felt HiMedia Q10 Pro offered the best quality for media playback. With now 18 months since launch, you may wonder why I would do a review now. That’s because Himedia keeps updating the firmware, and they asked me to check out and test their latest feature: 4K Blu-Ray navigation on Android 7.0 OS. As usual, I’ll start by checking out the hardware, and will publish a review focusing on Blu-ray playback in a few weeks. The package is more like a suitcase that your usual tiny box, but that’s common […]

NanoPi Duo Quick Start Guide – Ubuntu, Breadboard, Mini Shield & mSATA SSD

As far as I know NanoPi Duo is the only quad core ARM Linux development board that can fit on a breadboard. We’ve already seen it’s much smaller than Raspberry Pi Zero, and the company offer a mini shield exposing USB ports, Ethernet, a few I/Os, and an mSATA slot in in NanoPi Duo Starter Kit Review – Part 1: Unboxing and Assembly. I’ve finally played with it this week-end, and will report what I had to do to blink a LED when connected to breadboard, and my experience using the mini shield with  an mSATA SSD, WiFi connectivity, and cooling under load. Flashing Ubuntu 16.04.2 firmware image to NanoPi Duo As with many other Allwinner development boards, you should first check if Armbian is available for the board. NanoPi Duo is not supported, but it’s said to work with Orange Pi Zero image minus support for WiFi. Since the […]

MeLE PCG35 Apo Apollo Lake Mini PC Review – Part 3: Ubuntu 17.10

I completed the review of MeLE PCG35 Apo with Windows 10 Home a few days ago, and as promised, I’ve now installed the freshly released Ubuntu 17.10 in the Intel Celeron J3455 “Apollo Lake” mini PC. I’ll start by shortly explaining the step to install Ubuntu 17.10 in the M.2 slot, although you could also install it to the internal eMMC flash replacing Windows 10, then show what works and what does, and finally include a video reproducing the tests I usually do in Windows 10. How to Install Linux in MeLE PCG35 Apo This partially follows the procedure I used to run (not install) Ubuntu 16.04 on MeLE PCG03 Apo mini PC. First you’ll need to download the ISO of your choice (ubuntu-17.10-desktop-am64.iso in my case), and prepare a bootable USB flash drive with the software of your choice be it Rufus, Startup Disk Creator or others. I did […]

Tronxy X3S 3D Printer Review – Part 2: Upgraded Heatbed and RAMPS Board

Karl here. So the bed I mentioned in the first part of Tronxy X3S review is not very good. It took about 10-11 minutes to heat up to 60 deg Celsius. I also mentioned I was going to upgrade the board to a RAMPS board. Today we are going to look at both these upgrades. New Heated Bed I can take no credit for this one but I wanted to pass this along. Folger tech sells a 12v 280w heated bed stick on pad. I picked this up for $20, but is now $22. In order to do this upgrade you will need a MOSFET, 12V/30A power supply, and of course the pad above. Super easy installation. Remove the bed and stick on the self adhesive pad centered. Replace the power supply with new one. Should be self explanatory. In order to power this bed a MOSFET is needed. A […]

JeVois Smart Machine Vision Camera Review – Part 1: Developer / Robotics Kit Unboxing

JeVois-A33 computer vision camera was unveiled at the end of last year through a Kickstarter campaign. Powered by an Allwinner A33 quad core Cortex A7 processor, and a 1.3MP camera sensor, the system could detect motion, track faces and eyes, detect & decode ArUco makers & QR codes, follow lines for autonomous cars, etc.. thanks to JeVois framework. Most rewards from KickStarter shipped in April of this year, so it’s quite possible some of the regular readers of this blog are already familiar the camera. But the developer (Laurent Itti) re-contacted me recently, explaining they add improves the software with Python support, and new features such as the capability of running deep neural networks directly on the processor inside the smart camera. He also wanted to send a review sample, which I received today, but I got a bit more than I expected, so I’ll start the review with an […]

UP 7000 x86 SBC