Hackaday Links: November 2, 2014

Russians blowing up capacitors! As we all know, electronics only work because of blue smoke. [kreosan] is releasing this blue smoke from a few hundred caps. Fun times, even if they are a large number of inert tube shields in their collection of caps.

[mayhugh1] over on the home model engine machinist forum has built an 18 cylinder radial engine. It’s based on the Hodgson 9-cylinder radial engine that has been around for a while. The crank case is machined from a 5″ diameter rod of aluminum. There’s a Picassa album of the engine being constructed as well.

[Richard] wanted a Minecraft server, but not just any Minecraft server; this one demanded a custom case. A grass block was the inspiration, acrylic the medium, and a quad-core Mini-ITX the guts of the project.

Halloween was last Friday, and as always the tip line filled up with costume builds. [Leif] built a Ghostbusters costume complete with Muon trap, [Jeff] printed out some steampunk post-apocolyptic goggles, and [Green Gentleman] made a death-a-corn, although we’re struggling to figure out why the last one isn’t called an acorn-‘o-lantern.

[Matthias Wandel], a.k.a. the woodgears.ca dude,  is well-known in certain circles for being a wizard of wood. One of the first projects that put him on the map was a pantorouter – a router to cut mortises and tenons. He’s going back to his roots and building a bigger version. This version uses models of routers that are available outside North America, and in the latest video [Matthias] has it dialed in very well.

The Open Source Remote Control was an entry for The Hackaday Prize that didn’t make the final cut. It’s now an indiegogo project, and has some really cool tech we can’t wait to see in mainstream RC transmitters.

Copying complex objects in wood

[Matthias], eminent woodworker he is, designed and built an awesome machine to make copies of just about any object imaginable. With a few scrap 2x4s, and a few bolts, screws, and skateboard bearings, you too can copy anything into a solid block of wood.

The theory of operations for [Matthias]’ copy carver is mounting a router and ‘follower’ to the same piece of wood. Put that on an XY table with a rotation axis, and just about any object can be copied in wood or plastic. It’s not too dissimilar to a Dulplicarver, a routing machine meant to copy everything from gun stocks to guitar and violin bodies.

So far, [Matthias] has copied a rotary phone and a sadly non-functional wrench.  It’s the perfect follow-up for [Matthias]’ 3 axis pantograph router that can copy and enlarge any random flat object you can throw at it.

via Make

A 3D Pantograph

pantograph

It seems that there is no end to ingenious woodworking tools, such as this 3-D Router Pantograph from [Woodgears.ca]. The pantograph, a design using linkages to trace and scale drawings, may have been invented in the 1600s, but if we were honest, most of us haven’t heard of this device. This particular pantograph is able to trace letters or other stencils in three dimensions by pivoting about an additional axis.

If you’re wondering where to get these stencils, they’ve got you covered with an online stencil generation tool. However, if you want to make even more detailed stencils, we might recommend using a free drafting tool such as Draftsight (here’s a review), or Sketchup.

[Woodgears] gives a good explanation of how it’s made in the video after the break. You can also buy plans for it if you want templates to use to cut everything. Continue reading “A 3D Pantograph”