Both the ZX80 and Microace use vacuum formed cases. It’s a reasonably priced process for prototyping/short runs.
As far as the colors of the Microace go, they are the photographic negative of the ZX80. I’ve long wondered if that was intentional or they messed up some part of the manufacturing process (supplying a negative instead of transparency to the keyboard manufacturer, for instance).
When looking at pictures the issue ones are identified by the upper case front right and left corners being radiused or rounded whereas the issue twos upper case front corners are straight or right angled. The front white edge of the computer is usually thicker on the ABS machines, the ABS computers were also usually sold without the functions label on the upper case front.
I found another article about the Sinclair ZX80 and Timex 1000 library lending program here on page 9 of Timex Sinclair User 4:
http://datassette.nyc3.cdn.digitalocean ... user_4.pdf
This is a really cool classic computer magazine, I love reading the scene details I missed bitd and the cool projects like shown on the cover:
http://datassette.nyc3.cdn.digitalocean ... user_5.pdf
Still haven't picked up a TS1000 yet but enjoying the emu and will be getting one presently.
The low memory footprint is so refreshingly intriguing, reminds me of my first computers a 4K TRS-80 and the 2K TS, a 1K ZX would have been even more inspiring but I want to get the TS 1000 model I had first experimented with.
Some of the 16K games are amazingly fun Today for the classic large pixes, 64x48 is awesome for block graphics even without hires, I wonder if there is any way to do hires with 16K without modification?
I am interested in stock development without modifications so I will be exploring 1K and 2K hires that Dr Beep is doing so impressively and building a 16k 64x48 block graphics game. Also want to explore the sound output through the cassette if it is possible to maintain the display at the same time.