Hello and thanks for reading my blog!
At the time of my last posting I had only 2 sections of my Musical PVC Bench completed. Again, many thanks to the TC Makers volunteers who helped me get to that point!
Every section is now welded together. You can see in the attached photo that I still have some sanding to do (mostly of excess PVC cement) and that it will need to be painted in order to hide markings and solvent stains as well as to protect it from the sun.
Anyone interested in volunteering to help with final steps will be welcomed. Remaining steps are sanding, spray painting, finishing paddles, attaching paddles, welding/cutting metal anchors & bolting sections together by Sept 22.
Willing to help? Email me at [email protected]
Hey, thanks very much for checking out my blog!
Last week I promised to discuss the influence of Chuck Taylor shoes on my chair design. However, I need to take a short break from my rocker to create a bench for a block-improvement effort in the Dayton’s Bluff Community.
In this post, I will describe the bench design and invite you to help build it! Interested? Shoot me an email at [email protected]!
All participants will learn how to solvent weld PVC. The skill is used to build many exciting maker projects from potato launchers to musical instruments like the ones played by the Blue Man Group. In fact, the bench that we build can be used both for rest and to play a few tunes while waiting for the bus!
To make construction easier, I designed the bench in 6 sections. Each section is 39 inches long and 19 inches wide. Five of the sections are identical (just oriented differently) and one section is unique. Once I have all of the sections on site, I will bolt 3 pipes from each section to 3 pipes in an adjacent section.
The design uses PVC pipes of 5 different lengths with the longest pipes serving as the legs of the bench. Standard bench height is 18 inches and each section of the bench has four 18 inch-long pipes. Placement of these bench legs will be important for balance and stability.
Thanks for checking out my blog post! As I promised in last week’s entry, this week I will reveal whether or not I solved Frank Lloyd Wright’s design problem. The Origami Chair famously has a tendency to tip forward; especially as the sitter scoots forward in preparation for standing up. Wright’s solution was to add anti-tipping feet; he added metal caps to make the extra pieces look more intentional.
My thought was to make the front feet larger, providing a greater surface area and, therefore, a lesser proportion of the sitter’s weight on the front corner of the feet. Good idea?? I originally made the feet about 4″ long (a 25% increase from the FLW model) and then sliced off a couple of inches from the bottom of each side of the chair, doubling the length of the feet. Result??
I still had a tipping problem. The seated person wasn’t in any danger but the experience of getting up from the chair could still be a bit startling–not a desirable quality for a chair!
I considered tossing the chair out and moving on to another project until a fellow member of Twin Cities Maker mentioned that a chair with a tipping problem might make a great rocker. Thus began a new design!
So, next I carved a model rocker out of polystyrene foam.
Determining the arc of the rockers turned out to be quite a research project. Eventually, I found a simple formula for finding the length of the radius of the circle from which the arc should be drawn. That is seat height x pi. I brought my model and 2 tubes to a steel-bending expert.
Next, I made several steel plates to screw to the feet and tail of the chair so that I could connect the chair to the rockers.
Positioning the chair, just right, onto the rockers was challenging. If there is a next time, I will get help holding the chair as I weld it to the rockers.
Next week, I will discuss creating the exterior of the chair.
Over the next several weeks I will post photos of my rocking-chair project as it progresses. I welcome your feedback and hope that you will help me find a name for this chair.
My design is inspired by 2 sources: the Frank Lloyd Wright Origami Chair and the Converse All Star sneaker. I’ve always wanted to re-design the Origami Chair as an updated, cool lounger. The Converse reference came later, after hours of observation, when it struck me (and my friend Ann who stopped by the Hack Factory for a critique session), that my placement of masking tape around the rockers was reminiscent of a pair of red sneakers (more on this in a future post).
A few years ago I made a large, black lacquered version of FLW’s Origami Chair and I kept one for my own home.
Using the chair at my home, I started my new chair by tracing a pattern onto poster board. Then, I made another pattern about 2/3 the size of the large one, tweaked the proportions and used that pattern to cut the plywood.
Once I assembled the plywood pieces I carved an ergonomic seat and back out of spray foam. To create a smooth surface, I covered the carved foam in body filler and then did a lot of sanding.
Next week I will discuss the main design problem with FLW’s Origami Chair and whether or not I solved it.
David Bryan, Riley Harrison, Cali Mansty, and Aaron Prust are presenting multiple projects for Northern Spark 2013 on June 8th in Downtown Saint Paul! Northern Spark is an overnight interactive festival starting at 8:58pm and ending at sunrise! We are inviting everyone to come and hang out, and enjoy the festival! The Hack Factory will have three spaces setup for people to come and interact with the Art.
We are also in the process of fundraising for this project, currently we need about $3,800 to help cover the costs of materials, and $4,200 total to cover rewards. We receive all funds that are pledged.
So lets talk about one of the projects, Strange Attractors. You may remember me from such things as the Raspberry Pi powered cat feeder. While I’m at it again, and making stuff with the Raspberry Pi. I was asked create a few blog posts for MCM that talked about the Raspberry Pi Camera module that I’m going to use in my next project.
Image credit: Alex Weber, http://www.flickr.com/people/[email protected]/
Twin Cities Maker is going to have a Mini Maker Faire at the Hack Factory on February 13th, 2010! Come one, come all! We’re planning to have the fun start at 2 PM with local makers exhibiting and playing in the newly acquired space. We will also have an Art Show and Party later that night for people to come and experience the space and have some refreshments.
We are looking for you to join us and we are also looking for people to exhibit! If you’re interested, please contact us at [email protected] so we can reserve a spot for you! Also come to our regular Wednesday night meetings if you would like to help us out or get some ideas for your table.
ADMISSION IS FREE!
There will be raffles throughout the day for maker stuff. Light refreshments will be provided at the art show and party.
Makers for the day include:
Please join us to support the Hack Factory and local makers by becoming a member or making a donation.
Mini Maker Faire 2-6 PM
Art Show & Party 7-11 PM
Refreshments are being provided courtesy of CazTek Engineering , a local design and engineering firm.
Click one of the images below to get a full page PDF copy of a promotional flyer.