29th Feb 2016

Wood Gears

I was asked to make some gears in plywood. I made them in three layers out of different colors of wood. I used oak and maple ply. They came out...

20th Sep 2014

Squiggly Draw V3

Here’s another version of Squiggly-Graph I made for three-year old Baby Angelo. I tried bigger teeth to see what would happen. One of the two gears is actually captive once...

16th Sep 2014

Gear Toy

I making a gift for Baby Angelo (3 years old). I want to make him a gear toy. It will be peg-board and bolts that thread in from the bottom. Gears will...

07th Jul 2014

Continuous Rotation Servo Hack

I needed motors for a small robot and I wanted to keep it simple and inexpensive. Ordinarily you need a DC motor with gearbox and an h-bridge or motor drivers. Lots...

07th Jul 2014

Swirly Draw V2

Swirly Draw V2 is like the original Swirly-Draw except it has magnetic paper holder (like Art-O-Matic and Isocel-Ease). The idea of Swirly Draw was to be small and simple  but I...

27th May 2014

Swirly Draw

It’s a drawing machine you crank! Sort of a kid-version of art-o-matic. Seems easier than squiggly-draw too. I think this is great for kids. This one has a ratio of 39:40. I like it!...

21st May 2014

Hey Kids! Squiggly Draw!

I just made this Spirograph-like toy! I can’t seem to put it down. It’s for a 5y old birthday gift. Her’s is acrylic but I made another from hardboard for me...

15th Apr 2014

Art-O-Matic

I’ve not done any drawing robots in a while and I got the bug again. I drew Art-O-Matic up in Sketchup (and gear generator) then made the parts from hardboard using a CNC cutter. Added...

19th Jun 2013

Electric Motor Gearbox

Here’s another version of the Simple Electric Motor project. I added a 4 stage gearbox to make it more fun and interesting. Each stage has a 4:1 gear ratio. Here are...

09th Mar 2013

PrintrBot Plus FixUp

Spent most of today fiddling with my new PrintrBot Plus. One of the timing pulleys was stripped. We did a kludge which eventually let go. They are sending a new...

21st Dec 2012

Billboard Thoughts

I’m collaborating with my friend Raven. We’re still at the drawing board but we’ve talked about those billboards that change images using rotating triangles. It’s a cool way to incorporate...

12th Oct 2012

Interference Rooster

I make a rooster each year for the Atomic Rooster Cock Show. This started off as a remote control project but I decided to just go with a switch. I designed...