This was a lot easier, and the process more enjoyable, with legos... Especially the pulley-routing part.

Oh, and those wheels make contact with the bed for 1.5mm, hah!

Basically, if you're not looking at this on a phone-screen, the image is probably significantly larger than the real-thing. The file is nearly 3000 lines. This is absurd.

Hey, everything seems to scale nicely, at least... 'cause yahknow, a large pulley-driven 3-axis system makes a heck of a lot of sense.

Also, are those two diagonal pulleys going to cause weird torquing? Bah!

Those'll be nothing compared to the rest...

WTF...

Yesterday: (before I passed-out)

The "deadline" for a free first $20 order passes in something like 15 hours...

My brain has turned to mush on this project...

The latest:

Thought I'd switch to merely 2-axes for the $20 order, as a good proof-of-concept, and plausibly still functional as an etch-a-sketch sorta thing...

Glad I did; viewing it with less clutter made me realize several *more* design-flaws WEE!

Even the pulley "puzzle" idea is a bit difficult in this short time-span... Turns out some of my pulleys need to be rotated 90-degrees, which means they're no longer mounted on my surfaces, but require *additional* surfaces... Whelp, that's a bit of work, and adding those surfaces interferes with those that woulda been used in the "puzzle". So...

I kinda still dig the idea of a system that could be implemented in a mere 7.1in x 7.1in piece of material... But the monetary-crunch for it is dramatically-reduced with the $100 gift...

I've little doubt I *could* get a 3-axis, probably even 4-axis something within $100, and probably even a few other things, as well.

So... seeing as how this $20-free additional surprise was limited to ten days... well, let's just say I can't even remember the last time I bathed. 

[Note 2023: LO Friggin L! What was it three measly days? My how times've changed. I lost my beloved cat two years and six months ago in a few days. Last I bathed with anything other than lysol wipes was looking for him at a hotel! No joke. LOL I laughed so hard reading this I started to pass out thinking "well, this wouldn't be the worst way to go!" This ain't a call for pity. I'm fine. It's just incredibly funny to recall a time prior to "living in a van down by the river!"]

I think it's time to admit defeat.

It woulda been good to do a prototype before "the big order", though, since there's something to be said about the effects of tooling-widths and whatnot, that could have a dramatic effect on a system like this... Also, was kinda thinking about snap-together, which *definitely* would be effected by tolerances, tooling-widths, etc...