A place to learn about coding, making things, and stuff that strikes my fancy.
I feel like, with making the first two "Introduction to Digital Computers" videos I've gained a superpower. And I've used that power to help me visualize and solve another problem I was having, figuring out the shape of spur gears (and eventually, internal spur gears, the next major feature I'd like to add to the... Continue Reading →
I've come to realize making something from scratch winds up building a bunch of prototypes as you both perfect the plans and figure out how to make the parts. And in my case, while the plans may be great--my ability to machine parts is... shall we say questionable? At any rate, I have a second... Continue Reading →
It took another couple of tries, and the trick for these gears was to get the outer diameter to within 0.002". Further, it required depthing the teeth to 1/32" == 0.625" (the precise measurement of the depth of the teeth) rather than cutting them a hair deeper. And I'm suspicious the Sherline divider may not... Continue Reading →
It probably doesn't help that I have no idea what I'm doing. Though I do have all my fingers and toes. So there's that. So today, after getting the M3 to M2 adapter, the M2 to Sherline adapter, and hooking up the Sherline 4-jawed chuck to the larger 7" lathe, I went to round the... Continue Reading →
So one downside of the superglue arbor is that you really need to clean up the end of the arbor holding your gear--and you need to apply enough glue to get the gear to stick to the arbor. More than once today I had wheels fall off the arbor--and that led to... well, complications. I... Continue Reading →
So I drew and cut out several blanks from the 1/8th inch aluminum (and I confess I had to do this several times, by the last blank I was very close to the line) using a scroll saw and a jeweler's blade. I then perfected them on the Sherline Lathe to the correct diameter of... Continue Reading →
First, let me observe that I'm fascinated by all things which calculate. That means computers, of course--from a desktop computer to mobile devices to Arduinos and other 8-bit computers. But that also means wiring transistors which can calculate things, and that means mechanical calculators: Orreries, Tellurions, mechanical adders--all of these things fascinate me as well.... Continue Reading →
So the biggest problem, apparently, when it comes to cutting gears, is just getting all the fiddly bits together to make your gear cutting system. In my case, I'm starting with a Sherline mill, and I'm adding a CNC rotary table, a 90 degree table, and a 1 inch arbor to mount the gear cutters... Continue Reading →
My ultimate goal is to recreate the 3D printed object in brass, creating a small little tabletop Orrery for display. That means, of course, cutting gears. So there has been a little bit of a pause while I order the correct things for gear cutting. Ultimately my goal is to set up a Sherline mill... Continue Reading →
So after a couple of days of printing, and a little sanding, some assembly, and not a tiny bit of cursing, I have a printed orrery gear assembly for our Earth-Moon Orrery. It's a little stiff, but that's to be expected since I haven't perfected the gears through sanding. (That means carefully going through each... Continue Reading →
The Hacking Den 
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