This video is my take on a DIY wooden rower, using hand tools and limited material. Picture source: www.concept2.com/service/indo... www.jk-sportvertrieb.de/media... www.hettel.dk/lib/exe/fetch.p...
for a more even distribution of pressure on the gluteal region, you could make holes in the rowing seat slider for the ischial branch (lat. ramus ossis ischii), the average distance between the lower points of the tubercles in men is 110-120mm, or purchase a special pillow, and of course wheels roller skates work more pleasantly and how strong air resistance such a flywheel creates in comparison with concept2 ?
That are some very good points! As for the air resistance, on the smallest gear it is like a 6 to 7 of a concept2, on its biggest gear it is lower than 1. The more blade area there is, the closer you get to concept2 I guess.
In theory, more fanblade area creates the same drag force while spinning slower, lowering the pitch of the noise and therefore reduce perceived noise. There will be a practical limit to the number of blades as air has to flow in between, so widening the blades would be better if possible, due to the wheel mounting. But of course the blades generate a lot of turbulence, so it will always be somewhat noisy.
@@Adrian-gn9zr Thank you for the clarifying. I was looking at the Concept2 Model D damper that is used to create resistance. I wonder if enclosing portions of the fan would help reduce noise as well. I guess I will have to experiment to find out.
Nice!!!!
Very nice
for a more even distribution of pressure on the gluteal region, you could make holes in the rowing seat slider for the ischial branch (lat. ramus ossis ischii), the average distance between the lower points of the tubercles in men is 110-120mm, or purchase a special pillow, and of course wheels roller skates work more pleasantly
and how strong air resistance such a flywheel creates in comparison with concept2 ?
That are some very good points!
As for the air resistance, on the smallest gear it is like a 6 to 7 of a concept2, on its biggest gear it is lower than 1. The more blade area there is, the closer you get to concept2 I guess.
@@Adrian-gn9zr ok. thx
I’d like to see a version that generates electricity.
Adrian, that is neat and nicely made for a wooden framed rower. Could you elaborate on using more fan blades to quiet the rowing noise?
In theory, more fanblade area creates the same drag force while spinning slower, lowering the pitch of the noise and therefore reduce perceived noise.
There will be a practical limit to the number of blades as air has to flow in between, so widening the blades would be better if possible, due to the wheel mounting.
But of course the blades generate a lot of turbulence, so it will always be somewhat noisy.
@@Adrian-gn9zr Thank you for the clarifying. I was looking at the Concept2 Model D damper that is used to create resistance. I wonder if enclosing portions of the fan would help reduce noise as well. I guess I will have to experiment to find out.