rowing machine – 3

Having some more time this week to finish this very small piece of work: a pulley system for lifting the weights up and down. Then ensemble everything together: the sliding seat, the rotating foot rest (note the pair of sandals tied on it). Initial testing gave satisfactory results, though some adjustments are still needed here and there!

Rowing the machine is quite like riding a bicycle on long distance, it seems light and easy at first, but it gets more and more demanding the longer you row. That’s a perfect machine for exercising many of your body’s muscles. I made a quick video capture with my phone to show how the machine works below (sorry for the poor lighting condition).

rowing machine – 2

Have some times this week to continue working on my rowing machine. First is the basket used to contain weights (just some bricks instead of those iron weight plates). It runs on 4 small plastic wheels lying on 2 wooden rails. A system of line and 3 blocks is used to move the weights basket sliding up and down in an near – vertical manner (75 degrees).

It’s only when I first try running the machine that I’ve found out it is making so much noises, the 8 wheels on wooden rails. I decided to change from the slanted design (4th image) to an upright one (5th image). The weights would run up and down by a system of lines and pulleys, rather than running on rails. Proceed slowly as I have little free time for the moment.

rowing machine – 1

Why a rowing machine!? First, it is among the best exercising methods which helps building the most groups of muscles. Second, to be used as a complementary way besides kayak paddling, especially when I don’t have time to go to the river, or when I do have, but the tide does not permit a convenient sortie. Below is my on – going building progress.

Most of the rowing machine’s frame is made from cheap MDF, glued, stapled and screwed together, then painted outside with thinned epoxy to strengthen the MDF a bit. Some important parts are made from wood, e.g: rails for the sliding seat… I use 4 small white hard – plastic wheels with ball bearing for durability, and for the sliding motion to be smooth.