It turns out that the last day of the year can be quite productive. I've managed to sneak in a PCB layout for the input measurement and protection board for my sunpowered. Got it ordered, can't wait to test it ! I got carried away with via stitching ... read more →

Let's Encrypt is a soon to be publicly available service to provide TLS certificates for free and in automated fashion. I'm helping them test their systems by participating in the beta programme. Because of that this site is now sporting, publicly re ... read more →

I run Android tests on CI and after having switched to Lollipop recently the integration tests wouldn't run. Invoking androidConnectedTest gradle target always resulted in crashing with ShellCommandUnresponsiveException. Internet says that in such a ... read more →

This is the second part in the series on the tools I use. Tools that are surprisingly useful, tools that are not that obvious to find. Today: how to calibrate the CNC axis without actually cutting anything ? Use a test indicator ! How to hold the met ... read more →

Just a quick note on how to get USB 3.0 in Virtualbox for VMs that were created with USB 1.1 support only. First, download VirtualBox Extension Pack from here. Install it. Then quit Virtualbox completely. Go to your directory that contains your virtu ... read more →

Some VPS providers, e.g. Azure provide you with 2 disk drives for your VPSes. One, of very limited size, system disk, and the other one, spacy but with not guarantees that the data survives reboot. Basically it means that you can have a small VPS, wi ... read more →

Recently I was playing with a fully Dockerized setup of Jenkins at work and found a curious issue there. Whenever Jenkins was polling the git server the side effect was that it created a zombie ssh process. The issue is actually remediated by the Jen ... read more →

Hello ! Today we'll talk about driving CNC machines, toolpaths and Debian, so stay tuned ! I have a separate old PC for driving the CNC machine via parallel port. This is, as they say, the Only Proper Way and It Was Always Like That. I'm thinking abo ... read more →

Update 2023: I no longer hosts those dashboards anymore and the server no longer runs in the form described. You could argue I still run sunpowered servers, as my new house has solar PV ;) Some, rather long, time ago I've added a custom python data ... read more →

After 2 months of waiting - my CNC router arrives. 8 weeks lead time they said - 7 weeks and 4 days it was ! Who are they ? TanieCNC people [CheapCNC in Polish :]. Although it may look like they don't know how to make websites AND their name does not ... read more →