MFX mass-storage add-on

Modern, Memotech inspired, hardware projects
Martin A
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Joined: 09 Nov 2013 21:03

Re: MFX mass-storage add-on

Post by Martin A »

Dave wrote: 28 May 2022 20:45 Steve,

you might have missed my terse update between Martin's posts - follow the link for more detail on how things developed to this stage

regards
Dave
I had a chance to check back on the e-mails. We started in Mid March. it's come quite a way in 10 weeks or so.
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gunrock
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Joined: 28 Oct 2020 21:17

Re: MFX mass-storage add-on

Post by gunrock »

Yes, @Dave I did miss your post, as it was squashed between two of Martin's expansive entries.

I read it yesterday at work (whilst "resting" :D - I was between bug fixing and testing) and it was a great, informative read. Not sure I'd ever be able to design and build hardware :!: But fascinating reading about the iterative process and intuition/experience-led "guessing", in tracking down noise and component latency problems. Bravo!

Ten-weeks from genesis to prototype and pcb layout, is definitely in the realm of rapid-prototyping! Great job all-round and so good to see that so much of Andy Key's code was useful, even where parts were rewritten to match the extra design goals.
Steve G
Danish-keyed Memotech MTX 512, CFX II and loving it
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Dave
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Re: MFX mass-storage add-on

Post by Dave »

Latest preview of a possible PCB . . .
The footprint has increased substantially. The idea is that no breakout or extension cables will be needed - all of the I/O ports are to be accessible ia the end plate. A 3D printed end-plate will be used to replace the original. Obviously, this will mean an end plate made of PLA, rather than aluminium in order to keep the costs down.
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gunrock
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Re: MFX mass-storage add-on

Post by gunrock »

Now that is a great idea! That allows an easier fit for components and with the custom end plate, a smart, flush fit. If the 3d printer files are made available, users can print in other colours/materials too.

I'm a fan of this idea.
Steve G
Danish-keyed Memotech MTX 512, CFX II and loving it
Potholepete
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Joined: 11 Aug 2012 22:13

Re: MFX mass-storage add-on

Post by Potholepete »

as if by magic an alternative to PLA for the custom endplates :-)
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All I would need a a modified SVG file from my original and I can do a test cut on the laser for you Dave.

Jim
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Dave
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Re: MFX mass-storage add-on

Post by Dave »

Thanks Jim,

that's much appreciated. I'm not sure that I have any 3D modelling skills (oh, just checked, and I don't!). Once I get some boards manufactured, I'll talk nicely to Martina and he might be able to help us with the modelling :)

regards
Dave
Potholepete
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Joined: 11 Aug 2012 22:13

Re: MFX mass-storage add-on

Post by Potholepete »

You can easily make any changes in Inkscape which is what I used originally and currently the stock image I imported into Lightburn is just a PNG file exported from Inkscape. My 3d skills (cad) are not good either lol.

Am happy to help once you know what will be needed and where.

Jim
Martin A
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Re: MFX mass-storage add-on

Post by Martin A »

Dave wrote: 08 Jun 2022 21:05 I'll talk nicely to Martina
Who's Martina ?
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gunrock
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Joined: 28 Oct 2020 21:17

Re: MFX mass-storage add-on

Post by gunrock »

Its only Martina at the weekends, Dave, ffs! :lol:
Steve G
Danish-keyed Memotech MTX 512, CFX II and loving it
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