In converting a desk into a clockmaker’s bench, I wound up buying a router and router table to make the drawers. The router table has been taking up space on my workbench ever since.
I decided to make a rolling cabinet to mount the router table to, using scrap plywood and some drawers left over from a bathroom remodel. The project is a good example of a thrown-together wood project, and a few lessons in “measure twice; cut once”.
Continue reading Building a Quick Router Table Cabinet →
(first published on Needhamia.com in 2007)
I find the rose windows of Gothic cathedrals awe-inspiring. From the rigid formalism of Chartres to the flamboyant explosion of Tours, their marriage of geometry, philosophy, and aesthetics with stone and glass is awesome. Built at a time when science and spirit weren’t as divided as today, each window is a statement of the beauty, order, and harmony in the world. Using only a pair of compasses (dividers) and a straight-edge (an unmarked ruler), the Gothic architects created myriad lace-like designs, making stone hang in the air and glass sing.
Continue reading Geometry, Gothic Architecture, Rose Windows, and Christmas Ornaments →
In my previous post, I started working on the scale. In this post, I finish the woodworking, and painfully re-learn the woodworker’s adage: “Measure twice; cut once”.
I was so excited about the progress I’d made, and so eager to finish the drilling that I carefully measured, drilled the holes for one half of the Load Cell, then counterbored the hole for the first Load Cell nut… then discovered in my haste I’d counterbored the wrong side, and ruined the bottom plate of the scale.
Continue reading Dog Water Bowl Part 2: Measure Twice, Cut Once →
Now that my Dog Bed Weight Scale is sending data, I’m going to have a go at a water bowl scale. The idea is that, like the bed, the bowl will periodically send its weight to a cloud. This data should tell me when Pippa drinks, when we refill her bowl, and (maybe) how much she drinks.
The work-in-progress sources on Github, contain the beginnings of the Arduino 101 Sketch, Bill of Materials (Parts List), mechanical design/construction details, and a day-by-day project diary.
Continue reading Dog Water Bowl Scale Part 1: Initial Design Work →
In my previous post, I designed and printed a Centering Guide to line up the top and bottom pieces of the scale. In this post, I finish assembling the scale.
Now that I have the Load Sensor Holders that I designed and printed, I drilled mounting holes in the blocks that will hold the Load Sensors.
Continue reading Dog Weight Scale Part 13: Load Sensor Mounting and Final Assembly →
In my previous post, I 3D printed parts to hold down the Load Sensors. In this post, I correct the counterbored holes that keep the nuts from protruding below the bottom of the bottom piece of plywood.
In the woodworking post, I used a router to cut counterbore holes on the bottom side of the bottom piece of plywood. These holes hold the nuts that hold the circuit boards.
Continue reading Dog Weight Scale Part 11: Routing Counterbore Holes →
I want to learn how to use Load Sensors to continuously weigh stuff with an Arduino, so I thought it would be fun to continuously weigh our dog, Pippa, while she sleeps in her bed each night. The project is a little like Nate Seidle’s Beehive scale, but simpler.
The idea is to turn Pippa’s bed into a scale. Pippa’s in fine shape right now, but it’s always good to keep an eye on your dog’s weight, and a custom-made scale is a great way to do it.
Continue reading Dog Weight Scale, Part 1: Cutting the Circular Base →
After completing my drill press table, I decided my next step would be to make a fence for it – so I can drill vertical holes in the sides of short boards.
First I cut a 3 1/2″ board of 3/4″ MDF, of a width to match the drill press table. This first piece will be the face of the fence.
Continue reading How to Make a Drill Press Fence →
As multiple woodworkers have mentioned, a drill press as-is is poorly suited to doing woodworking: the cast iron table can transfer grease to the wood; the table is small; the table has limited places to fasten clamps to hold the wood down.
So here I am making a drill press table.
Continue reading How to Make a Drill Press Table →
Formula 409 turned out to be, as people had suggested, a fine way to clean the packing grease (likely Cosmoline) from the drill press parts. It’s necessary to clean this goo off so that 1) you don’t get it on the wood you’re working with, and b) the drill chuck doesn’t fall off while working (!)
Continue reading The Drill Press is Drilling →