Toolbox

Make: Projects – Simple 3D models with OpenSCAD

Make: Projects – Simple 3D models with OpenSCAD

In this tutorial, I’m going to show you how to use OpenSCAD to produce a simple 3D model by extruding a part profile produced in normal drawing software. I use Adobe Illustrator CS3 because I have access to it and am familiar with its interface, but the popular freeware drawing program InkScape will read and write DXF files natively, and there’s no reason why it couldn’t serve just as well if you prefer it. There are a number of other free and low-cost programs that will export DXF files. OpenSCAD’s developer mentions QCAD, which is available from its developer RibbonSoft for 24EUR.

See-through sink trap with clog-clearing knob

See-through sink trap with clog-clearing knob

This PermaFLOW sink trap from PF Waterworks was featured in Popular Science’s Best of What’s New 2008. To be clear, I’ve neither owner nor use one of these, so I can’t vouch for the quality of the product nor for its practical effectiveness. However, I admire the clever thinking that went into the design: the transparency lets you see at a glance how bad the clog is (or if your wedding ring really went down there), and the knob lets you clear it without dismantling the trap. At least in theory. In practice, of course, accumulated grime (or algae, if your trap is regularly exposed to light) might eventually obscure the interior of the pipe, and the rotating paddle mechanism might break down or get fouled with hair. Be interesting to see if this thing is still around in five years, and if so, how the early installations are holding up. [via SlipperyBrick]

MIT machine shop vids

I can’t believe we haven’t posted about these in the past (unless I missed them) — it’s a series of instructional MIT videos on “Machining Skills for Prototype Development.” Quite a nice little introduction to basic machine shop skills. [Thanks to Riley Porter, who posted this on the HacDC e-list] MIT TechTV — Machine Shop […]