Category Archives: CNC

Thoughts on future projects (68K!)

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This blog post does not document what I’ve done in my hobbies, except for some small projects, but rather what I plan to work on next. Before getting to that though, I should finish my description of the progress I’ve made with the VGA controller. I have attached the  EPF10K10 (PDF) FPGA to the 68000 CPU bus, and have had… Read more »

MPCNC “finished” and progress with the 68000 SBC

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The MPCNC is now ready to be used in anger. It took longer then I’d have liked but it’s all ready for serious cutting, albeit in wood: Making the spoil-board up was a bit of a mission, mostly because I’m completely new to this kind of thing. I started with a 600mm by 1220mm by 18mm thick piece of MDF…. Read more »

First cuts from the MPCNC

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Working on the MPCNC has been a bit of a background project. It’s hard to believe I started printing the parts for it about four months ago. Here is a little about the MPCNC for some context. The project is the brainchild of “Ryan” at v1engineering.com. It  is a set of 3D printable part designs, given away freely, and other… Read more »

Being sensible: a 68008 computer on breadboard

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After writing about building a 68020 computer I feel slightly silly for going back on my word: I have built up a 68008-based computer on breadboard. For one thing going right to a 68020 felt a bit like I’d be missing out; the pleasure is in exploring not the end result. I’d have left out on the other MPUs in… Read more »

Design of a 68020-based SBC

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My interest in the 68000 family of MPUs stems from two things: it’s use in my all time favourite computer, the Amiga. And the fact that it’s generally considered a very clean design compared to its then main competition. Not that this is a high bar; anything prior to the 386 is dreadful and the later CPUs are not much… Read more »