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Channel: Karl Johnson, Author at CNX Software - Embedded Systems News
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How to Easily Calibrate Retraction in 3D Printers

[Update July 2020:  It is now recommended to use Calibration Generator program instead of the Google Doc Spreadsheet in this article] Hey, Karl here with a short article on retraction tuning. I really...

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Sovol SV01 Review – A 3D Printer that Prints like a Boss

Howdy, Karl here. Let’s do this backward today and give final thoughts first …I like the SV01 3D printer. With a print volume of 280x240x300mm, it’s a good size printer. I think I could get several...

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Ugoos AM6 Review – An Android 9.0 TV Box with Plenty of Options

Karl here….With another review. Today we look at the AM6 from Ugoos. Ugoos has been around for quite some time. I recently did a review of the Beelink GT-King with the same S922X processor and I will...

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How I Adopted a Ubiquiti Unifi Security Gateway on my Existing Home Network

Hey Karl here with a quick write up on how I adopted a Ubiquiti Unifi Security Gateway (USG) into my existing home network. I ran into a few issues so I wanted to share and hopefully help someone...

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Anycubic Photon S Review – Part 1: Getting Started with an SLA 3D Printer

Hey, Karl here with something different. I will be breaking this one down into at least 2 posts. There is a lot to cover. In this first post, I will be sharing my initial experiences with the Anycubic...

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Sovol SV01 Upgrade with BigTreeTech SKR mini E3 Control Board

Karl here with a quick upgrade guide. The one complaint I had in the review of the SV01 3D printer was it was loud. Today we are going to look at resolving part of the problem by replacing the...

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How to install Duet 2 Maestro Board on HE3D K280 3D Printer

Quite a while ago I reviewed the HE3D K280 delta 3D printer.  Up until now, I did no mods other than the ones that I completed during the initial build. I have been very happy with it with the...

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Quick Update for the AnyCubic Photon S Photon Workshop V2.1.17.RC1

Just last week I did the first part of the review of the Anycubic Photon S. One of the pain points of printing was the long workflow. Chitubox Prusa slicer Photon File Validator Photon Workshop First...

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Virtual Desktop and Oculus Quest Tips & Tricks

Hey, Karl here. I wanted to share some experimenting I did with the Oculus Quest we purchased as a family gift for Christmas. One of the features I was looking forward to was wirelessly streaming VR...

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How to Recover from a Bad Firmware Upgrade on Anet ET4 3D Printer

Hey, Karl here with a really quick how-to. This how-to is to help everyone who has bricked their Anet ET4 printer after upgrading firmware on the printer. Anet reached out for a review of the ER4 and...

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3D Printer Retraction Calibration Vol II – Calibration Generator Program Release

Good day. Karl here. It has been a while since I have submitted any articles. I got burned out and my normal day job picked up considerably. I have been keeping busy but not with anything I would...

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Sovol SV02 3D Printer Unboxing and First prints

Hey, Karl here. Back in September of 2019, I reviewed the Sovol SV01 printer. I had a very good experience and still recommend it to this day. Fast forward a year and Sovol is back with a new version,...

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Testing PTFE Tube for 3D Printing

Karl here. I’m back with a short article on some testing that I did on PTFE tube. When I received the Sovol SV02 3D printer it came with some baby blue replacement PTFE tube. It came preinstalled with...

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Kywoo Tycoon 3D Printer Unboxing and User Experience Review

Hey, Karl here. A lot of our readers know I do most, if not all of the 3D printer reviews for the site. I feel very fortunate to be able to review them. It does take quite a lot of time but sometimes...

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Ender 3 Pro 3D printer in late 2020 – Build and first prints

Karl here. How does the Ender 3 Pro 3D printer stand up in late 2020? The short answer is pretty well. With just a few minor gripes it is a solid printer. According to All3dp the Ender 3 Pro came out...

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Sainsmart Genmitsu 4030 review – Unboxing, mods, and first cuts

Karl here. This will be a long one but I haven’t had this much fun with a product review in quite some time. I don’t consider myself a complete noob with CNC routers but I have only scratched the...

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Genmitsu PROVerXL 4030 CNC Router Review – Mods & Projects

Hey, Karl here. Today I am writing about my opinions on the Genmitsu PROVerXL 4030 CNC Router and sharing the projects that I have done. My initial review was published back in January. I have been...

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Genmitsu 6060 XY-Axis Extension Kit for PROVerXL4030 – DIY desk and folding cart

Karl here. I teased this article in the final review of the Genmitsu PROVerXL 4030 CNC Router. I was really happy with the base kit. You can check out all my thoughts there. SainSmart recently...

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Ortur Laser Master 2 Pro laser engraver – First impressions

Hey Karl here. Today I am here to share my initial experiences with the Ortur Laser Master 2 Pro laser engraver. That is a mouth full so I will refer to it as the LM2Pro for the remainder. The LM2Pro...

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GMK NucBox2 Review – Windows 10, Unraid OS on a Coffee Lake mini PC

Karl here. Today we are going to look at a mini PC. It is by GMK. GMK’s first foray looks to be the NucBox, a super tiny mini pc. I would call the NucBox2 its older, bigger, more capable brother. What...

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