I'm looking for smallish text. In one case, I'm a bit stuck because I'm trying to make three-dimensional a mostly-text logo, so I'd like to match the font they're using; hence the desire for a "countersunk" font. But I'm usually looking at letters less than a centimeter high, on the XY plane. I guess ideal would be a single-stroke font, where each stroke was one extrusion width across (my nozzleby peridot - Let's design something! (I've got an idea ...)
If I want to put text on my things, OpenSCAD makes it easy to use a TrueType font. But what are some suitable fonts? Most include segments or serifs that are so small my printer makes a mess. I've seen Arial Rounded MT Bold recommended, particularly for very thin text. Are there any genuinely 3D fonts (for ordinary text)? I'm thinking something like the fonts you see on classical sculpture, wherby peridot - Let's design something! (I've got an idea ...)
With electromagnetic braking, the braking force will be proportional to speed, like viscosity. So you won't be able to hold your plate in place without applying external currents or using a mechanical brake, but you can certainly slow the falling. Extra style points if you use the generated currents to charge a battery.by peridot - Mechanics
Oh I love having finger toys at work for when I'm thinking. (Okay, arguably I should be thinking most of the time when I'm at work, but you know how it goes.) I can recommend several, all fairly undemanding prints since that's what my machine can do just now: Elliptical gears: and I plan to expand it to: Concentric-sphere no-axes gimbal: My own celt (only likes to spin the way the arrows poby peridot - Let's design something! (I've got an idea ...)
I have FSRs partly working under my heated bed. The trick I used is to insulate them from the bed with a piece of squishy cork; this also softens the head-hitting-glass part slightly. The other nice thing about having a probe that can work anywhere is that I can (in principle, still working out bugs) do experiments like mapping the actual effect of more-arcane delta calibration parameters on bedby peridot - Let's design something! (I've got an idea ...)
If you want a gravitational potential well, you want a circular plot with z =1/r (r=sqrt(x**2 + y**2)), and sdavi gave you the tools to do that. But there are more complicated cases that are interesting: if you've got two bodies orbiting another (earth and moon, say) and want to know what happens to a third body (Apollo 11, say) you need to include centrifugal force. I mention this because I justby peridot - Let's design something! (I've got an idea ...)