Today I finally was able to install the key assembly in the power train for the new tandem. This assembly is a jack shaft that allows the blending of power from the rider and the auxiliary electric motor. That is the rider can power the wheel with no auxiliary power. The auxiliary motor can power the wheel and the rider can coast. Finally both can power the wheel at the same time.
At the same time the shaft itself functions as the pivot for the rear wheel suspension. This is good because the chains don’t vary in length as the suspension flexes. Continue reading Tandem Milestone:
Tag Archives: Son-of-Path
Recumbent tandem bicycle under construction in 2009 and 2010
Look Ma, No Brakes!
We are celebrating today, Cinco de Mayo, but is has no connection to the 1862 battle of Puebla when the Mexicans defeated the French. Instead we are celebrating a milestone in the construction of the new bicycle. Continue reading Look Ma, No Brakes!
Trial Fit:
Today I reached a significant milestone in the design and construction of the new bicycle. I put the major components together this afternoon for a trial fit. There is a photograph of the new bicycle on the blog. The components are the wheels with tires, the front fork, the main frame with a small front sub frame and the rear suspension frame its Fox Vanilla Shock and one seat. Continue reading Trial Fit:
Arizona Springtime
We are in the middle portion of Arizona, about an hour northwest of Phoenix. The weather has been improving daily here in the Sonoran Desert. High temperature today was 78 degrees after a low last night of 42 degrees. It makes it up to 65 by about 11 am. That is how long I had to wait to do some painting. Each day we get in an hour of walking before the temperature gets too warm. As soon as the sun sets, however, it starts getting cool quickly. Continue reading Arizona Springtime
Rage Over a Lost Penny
I guess I know about how Beethoven felt when he wrote the piano rondo, (“Rondo alla ingharese quasi un capriccio in G major, Op. 129”, better known as “Rage over a Lost Penny”.) I have been making little doo-dahs for the new bicycle. I needed a dozen or so braze-on binder bosses and a dozen or so water bottle bosses. What I have been doing on the cold mornings is to get in my trailer with the electric heater. I set up the Smithy Lathe with a steel rod and start turning out bosses. Today I was finishing up some water bottle bosses. They are three eights of an inch in diameter necked down to nine thirty-seconds. They are about five sixteenths of an inch long and are drilled and tapped for a five millimeter bolt. I whack it off with the hack saw and dress it up a bit with a file. It takes me about fifteen minutes to create each one. Continue reading Rage Over a Lost Penny