I use a FlashForge Creator Pro 3D printer for work. It’s okay, but I wouldn’t recommend it: you have to manually level the print bed (ಠ_ಠ), you can’t print via USB, it pretends to be a knock-off MakerBot (same USB ID: naughty naughty) and its slicing software is a mishmash of GPL and other code all bundled up in one proprietary lump. It also doesn’t used g-code, which is a bit poo.
This is one of those toys that you whirl around on a piece of string and it makes a chirping sound like a flock of sparrows. I have no idea what they’re called, so I called it birb_chirper.
Printer: Reach 3D Rafts: Doesn’t Matter Supports: Doesn’t Matter Resolution: 0.3 mm Infill: 0%
Notes: This is a thin-walled model, so use at least two shells and no infill for smooth walls.
Take a piece of thin string about 1 metre long (I used micro-cord, very fine paracord), pass it through the hole in the tip, then tie off a jam knot that’s big enough to stop in the hole in the top but still pass back through the slot in the side. Now whirl the thing around fast by the string, and it should start to chirp.
This is intended for the amusement of small children and the annoyance of adults.
How I Designed This
The tip of this thing is an ogee curve. I’ve included my library for creating simple ogee and ogive profiles in OpenSCAD.
// ogive-ogee example
// scruss, 2018
translate([0, -5])text("ogive(20,35)", size=3);
translate([30, 0])ogee(20, 35);
translate([30, -5])text("ogee(20,35)", size=3);
When both clips broke within a week on my Timbuk2 messenger bag, I knew I had to do something. This coincided with me fixing my 3d printer (it was the extruder feed: it was too loose all along!), so I was able to prototype a new clip.
Digital (aka DEC) used to make some very solid minicomputers back when a minicomputer was fridge-sized and people were still building nuclear power stations to be controlled by them. The Raspberry Pi Zero is a very mini computer indeed, and in USB gadget mode running SimH it makes a nice little emulation platform.