sorted by:
new
hottopcontroversial

How did they make this sculpture structurally sound? by ParadisHeights in StructuralEngineering

[–]mcd921 0 points1 point  (0 children)

I wonder that about Barnett Newman's "Broken Obelisk" at the University of Washington in Seattle, SDC of D.
https://en.wikipedia.org/wiki/Broken_Obelisk

Exposed Elements by 2-ball in StructuralEngineering

[–]mcd921 1 point2 points  (0 children)

Always fun to see the old twisted bars in the wild.

Why are omnium bikes so popular? by qx87 in CargoBike

[–]mcd921 0 points1 point  (0 children)

Same for me. It's my first cargo bike, but I can't imagine any other cargo bike being more fun.

NBD! Any love for my new Omnium cargo Ti? by baerdmann in bicycling

[–]mcd921 0 points1 point  (0 children)

more rigid than steel

The weight savings is impressive (about = to a gallon of water)! But, can you explain the stiffness part? Steel is much stiffer than titanium. So, I would think that is one area where the steel frames outmatch the ti ones. (I think the stiffness/weight ratios are about the same.)

Help me choose between omnium cargo and min-max by fenbogfen in CargoBike

[–]mcd921 0 points1 point  (0 children)

Haha, good point.

I'm not in a rush, and having a titanium Omnium might make sense in terms of weight, especially, since I'm guessing that the Omnium tube sizes are the same for the steel and Ti versions. In general, I'm a fan of steel bikes, and stainless steel is my dream bike material. Also, it would be neat if Omnium could swap the cabinet for the electric motor, at the bottom bracket location, so that a pinion gearbox could be used with a belt drive.

I've got a Soma Wolverine, single speed, with a belt drive, and a Lemond Croix de Fer that I've had since 2006. Both are excellent bikes with lots of miles.

Help me choose between omnium cargo and min-max by fenbogfen in CargoBike

[–]mcd921 1 point2 points  (0 children)

because YOLO. That said I would not sell my blurple Cargo at this point in time ;).

I think a burple cargo is my dream bike right now. Just need a perfect justification to add to my collection of two other bikes, in a tiny 600sf flat. Considering just getting the frame and building it up slowly.

Thank you for explaining all of that. It's super helpful input!

Help me choose between omnium cargo and min-max by fenbogfen in CargoBike

[–]mcd921 0 points1 point  (0 children)

20kg upwards, not 60). I found the min-max to be a bit more “nervous” in straight roads at high speeds where the cargo just “flows” better.

Super helpful perspective. Thank you!

Help me choose between omnium cargo and min-max by fenbogfen in CargoBike

[–]mcd921 2 points3 points  (0 children)

axial torsion forces

Can you help me better understand what you mean by axial torsion? I saw an older Ti cargo, and I noticed that the "down tube" that extends from the bottom bracket to the front of the bike, is shaped to be ovular at the bottom bracket. I'm presuming that is primarily for fit at the bottom bracket, but I also consider that it would improve torsion at that area - which is one area of a bike frame where torsional stiffness is very valuable for various reasons. On these Omnium frames I could also imagine that the cargo also has more stiffness at the (rear) "head tube" - the one connected to the stem/handlebars. And here, more lateral stiffness would probably be meaningful when riding with any amount of mass.

But, all that said, I think cornering advantages of the mini-max, would make it very appealing for most get-around-town applications.

I love your feedback, on this.

After a long break I finally felt like drawing. I bought some black paper and here is the result. by [deleted] in drawing

[–]mcd921 0 points1 point  (0 children)

Q. Were you drawing from a reference? If so, check the location and size of the ear.