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Target-Earth Blog!

Here's the TargetEarth blog, it's mostly useless information with a few extremely niche tech posts…

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Recent Posts

Here are the 5 most recent blog posts…

Z180 Mark IV Single Board Computer

There is a thriving community of enthusiasts who design and build their own computers from scratch, not just buying ready-built parts, but laying out pcb's, writing the firmware etc.

Check out: https://www.retrobrewcomputers.org/doku.php

A few years back I thought I'd have a go at assembling my own system from some of the designs on that site. I chose the Z180 Mark IV, a turbocharged variant of the venerable Z80 8bit processor with a memory management unit, 512KBytes of RAM, a multi-slot backplane and modern(ish!) storage, keyboard and display support.


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2019/11/21 15:00 · john

DIY Spraybooth

Since the move to the new office, I haven't been able to do any painting of models, as I had no way of using either spraycans or my airbrush. IN the previous office the size of the desks meant I could have a fairly ghetto setup with a huge cardboard box that I could spray into. Although I had no extractor, at least the paint (mostly) didn't go everywhere.

There are plenty of (cheap to very expensive) spray booths out there, including a very common one (under £70) that does pretty much everything I want:

However, the problem with this design is that the air is extracted out of the back of the unit. This means that you need quite a sizeable depth of desk to use it on. I don't have that:

I have a maximum of 75cm, front to back, and not a lot of free workspace to have something like that permanently in-place. What I needed to do was to build something like that, but that would fold-down even smaller, and with a top-mounted extractor to leave me without the depth issues whilst it is in use.


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2019/10/25 13:48 · john

High Grade 1/144 Dom Test Type

  • Manufacturer: Bandai
  • Part number: BANN03226
  • Year of production: 2016
  • Gundam in-universe model number: YMS-08B
  • Scale: 1/144
  • Series: Gundam The Origin
  • Kit type: HG
  • In-universe role: Prototype mobile suit
  • Build date: August 2018 - October 2019

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2019/10/10 19:47 · john

Master Grade 1/100 Gundam mkII Titans Test Type ver 2.0

  • Manufacturer: Bandai
  • Part number: BAN941924
  • Year of production: 2006
  • Gundam in-universe model number: RX-178
  • Scale: 1/100
  • Series: Zeta Gundam
  • Kit type: MG
  • In-universe role: Prototype mobile suit
  • Build date: Summer 2018

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2019/10/10 19:34 · john

Master Grade 1/100 Char's Rick Dias

  • Manufacturer: Bandai
  • Part number: BAN931421
  • Year of production: 2004
  • Gundam in-universe model number: RMS-099
  • Scale: 1/100
  • Series: Zeta Gundam
  • Kit type: MG
  • In-universe role: Custom space assault
  • Build date: October 2019

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2019/10/10 19:24 · john
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  • by john