Today, I stopped in at the Makerspace with the plan to work on a small project for a Halloween party this Saturday.
The plan was to take a “Roomba” robot vacuum cleaner that I got for $1.00 at a rummage sale, and covert it into the robot base for a giant spider or some other scary creature that could wander around at a Halloween party.
I started pulling screws out of the bottom to figure out how to remove the brushes and vacuum blower. It took some tinkering to figure out what I could and couldn’t remove and not cause a fault. In the end, it didn’t look like I could remove the blower motor and still have the thing run, so I simply removed the fan blades from the blower.
By that time, I was now thinking about video cameras and how easy it would be to run a 1/4-20 bolt right through the plastic. A bolt and two nuts quickly made a camera mount.
In the other room were some ping-pong balls, and I had a black sharpie. A little hot glue and Roomba-cam has some personality.
Look for Roomba-cam running around the Milwaukee Makerspace and please treat Roomba-cam nice – he is watching you and WILL upload to YouTube!
We’ve got a number of robot builders at Milwaukee Makerspace, but we’re not the only robot-lovers in town… via Frankie’s blog, check out this video about Tom Consi and the robotics work he’s doing at UWM.
(We’ve seen some renewed interest in the Milwaukee Robotics Club recently, so we’ll probably start up regular meetings again in the next few months… that way everyone can show off what they’ve been working on.)
MegaMax 3D printer based on MendelMax but bigger and minus plastic parts.
This is my on-going project at the Milwaukee Makerspace. It is a 3D extruded plastic printer with about 1 cuft build envelope. I want to print life-size human skulls (among other things) from CT scan data. The printer is made mostly from salvaged parts and materials so the cost has been very low. When it’s finished it will have a heated 12″x12″ bed (13″x13″ if I can find an aluminum plate that big) and dual extruder so it can print in two colors.
I have learned a lot on this project- some things that work and others that don’t work so well, and how to use a milling machine to drill holes precisely and square the ends of the 8020 extrusion pieces used to build up the frame of the machine.
I could not have done any of this without access to the people, materials, and tools at Milwaukee Makerspace. Every time I go there to do some work on this project someone says something that gives me new ideas for improvements to the design. I frequently find materials and parts left for me on the machine’s cart by other members who know what I’m trying to do. If you have a project idea find your local Makerspace and get busy- there is nothing that will get your creative juices flowing like being around a bunch of people with similar interests and different skills and experience!
My line following robot is another step closer to being completed. I finished soldering all of the components and connected the battery to test the circuit. The next and hopefully last steps are to attach the circuit board and motors to the body.
Today I stopped by the makerspace to etch the circuit board for my second robot. The robot is a very simple line follower that uses a LM393 dual comparator IC. The complete design and build instructions can be found in the book Robot Building for Beginners by David Cook.
Join us for The Greatest Show (& Tell) on Earth at Wisconsin State Faire Park September 24th & 25th, 2016. Admission is free. A joint presentation by Milwaukee Makerspace and the Betty Brinn Children's Museum.
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