Author Archives: Justin

AWS Logging (or “why am I being charged for free-tier S3?”)

I have an AWS account. I created it less than a year ago, so I get some free stuff with the account. In the billing dashboard, I was somewhat concerned to see this: It is only 5 days to the … Continue reading

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A 3D printer diary – printing another box

Following the 3D printer’s instructions online and in the book that came with it, I heated the print head up to working temperature, then carefully used a pair of tweezers to tweeze any filament off the brass nozzle. Doing this … Continue reading

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A 3D printer diary – printing a box

3D printing takes AGES! Even something as simple as the small container shown below takes four hours! A lot of lessons were learned from this print job. The short version is as follows: Don’t start a print job at 8pm. … Continue reading

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A 3D printer diary – clogged nozzle

After printing a stringy mess, the nozzle of my 3D20 is covered in goo (filament). At room temperature, it’s a nice hard crusty smooth goo. The instructions explain how to clean the nozzle. There’s a nice video (with jolly music) … Continue reading

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A 3D printer diary – supports

The SD card with the correct software was missing when we bought our Dremel 3D20 (it was a bargain). But I found the “Dremel Idea Builder” software and a firmware update on their website, and that allows me to load … Continue reading

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A 3D printer diary – getting going again

Our 3D printer (Dremel 3D20) was a bargain, because bits were missing. After five emails to Dremel support, and various phone calls, I eventually found a supplier who was willing to order the spare parts that I need – mainly … Continue reading

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AWS Storage capacity

I remember when I thought a gigabyte was a lot. I bought an external 1GB hard disk in 1995, and filled it up in no time at all. As geeky things go, it was pretty exciting. Hadoop is designed for … Continue reading

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Mixing hobbies – Lego train on 16mm Garden Railway (part 2)

In my last post, I berated the fact that a inside-frame chassis on 16mm track wasn’t possible in Lego. The gauntlet was picked up by my friends in the adult Lego fan community, and a potential solution looks like this: … Continue reading

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Mixing hobbies – Lego train on 16mm Garden Railway

We have had Lego trains running on our garden railways before, using a chassis made of wood and metal, and bodywork made out of the famous bricks. Around Christmas 2018, someone asked in the forums of the 16mm association if it … Continue reading

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A 3D printer diary – printing an accuracy test

We bought this printer in a sale. It was missing a few important parts, including the SD Card with software on it to control it from a laptop. Without that software, we would be limited to the four models that … Continue reading

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