Collaborate Disseminate
Join us Thursday at noon Pacific time for the OSH Park Hack Chat with Drew and Chris!
Note the different day from our usual Hack Chat schedule!
Printed circuit boards have been around for decades, and mass production of them has been an incalculable boon to the electronics industry. But …read more
Join us Wednesday at noon Pacific time for the Autodesk Fusion 360 Hack Chat!
Most of us have a collection of tools that we use for the various mechanical, electronic, and manufacturing tasks we face daily. But if you were asked to name one tool that stretches across all these …read more
Anyone who has ever wound a coil by hand has probably idly wondered “How do they do this with a machine?” at some point in the tedious process. That’s about when your attention wanders and the wire does what physics wants it to do, with the rat’s nest and cursing as a predictable result.
There’s got to be a better way, and [Russ Gries] is on his way to finding it with this proof-of-concept CNC flat coil winder. The video below is a brief overview of what came out of an intensive rapid prototyping session. [Russ] originally thought that moving …read more
Continue reading Delta Printer Morphs into CNC Flat Coil Winder
Some folks just can’t leave well enough alone, and that often ends up being a good thing. Such is the case with this 3D-printed compressed air engine, which just keeps getting better.
The design has changed a lot since we first covered [Tom Stanton]’s attempts at reviving the powerplant from the glory days of the Air Hogs line of toys, which he subsequently built a plane around. The engine was simple, with a ball valve that admitted air into the cylinder when a spring mounted to the top of the piston popped it out of the way. That spring has …read more
Continue reading Cams and Pushrods Improve 3D-Printed Compressed Air Engine
Learn what happened in the world of security during the week of November 13 – November 19.
Categories:
Security world
Week in security
Tags: camcatphishingcyber mondayemailfraudGoogle Playmalwarephishweek in securityweekly roundup
(Rea… Continue reading A week in security (November 13 – November 19)
Everyone knows how to make a POV laser display — low-mass, first-surface mirrors for the X- and Y-axes mounted on galvanometers driven rapidly to trace out the pattern. [Evan Stanford] found a simpler way, though: a completely mechanical laser show from 3D-printed parts.
The first 10 seconds of the video below completely explains how [Evan] accomplished this build. A pair of custom cams wiggles the laser pointer through the correct sequences of coordinates to trace the desired pattern out when cranked by hand through a 1:5 ratio gear train. But what’s simple in concept is a bit more complicated to …read more
Continue reading A Mechanical Laser Show with 3D-Printed Cams and Gears
It may be [MakeItExtreme]’s most ambitious build to date. There are a lot of moving parts to this plasma cutter tubing notcher, but it ought to make a fine addition to the shop and open up a lot of fabrication possibilities.
We have to admit to a certain initial bafflement when watching the video below for the first time. We can usually see where [MakeItExtreme]’s builds are going right from the first pieces of stock that get cut, but the large tube with the pressed-in bearing had us scratching our heads. The plan soon became clear — a motorized horizontal …read more
Continue reading Plasma Cutter Jig Notches Tubing Quickly and Cleanly