I look at online video tutorial time to time. When I miss a step, I just pause it, rewind a little, and replay it until I get it.

This may not be the answer, but surface do get cut up when photo match photo is projected to surface and part of photo image is missing. Here is quick image I made with cut mark at the edge of photo:

Technically sail is an airfoil. So, one of the way to model it is to lay down base airfoil section first. Copy it number of times along the height of the sail. Scale down each section and connect it all. Well, if you want to model it to real shape, sail needs to twist as it go up too; the unsupported side of sail tends to get pushed away with wind load. It all works out as airfoil, because wind aloft is stronger than at the boom. If you are racer, this airfoil needs to be in prefect form to get the maximum power out of wind.

Nice sketch and modeling.

White? What white? Well it all depends. If you paint your background black, your gray will turn white! It’s magic! Read some more on Adleson’s Checker Shadow Illusion.

Other way to do it is to make the pile as a single object. Here is my quick illustration:

I just grabbed woodpile picture and bark picture from the web and went from there.

Sorry Voder, can’t open your file. I am still on SU6. I tried to down load SU7 several times without success. I am surprised that Google doesn’t have functioning server???

Any way here is method two; a pin with larger diameter added where slot is cut. To make the pin and slot cutter I must used Follow me tool. At the end I just smoothed the edges.

Of course this level of detail is a over kill if you are just working on assembly.

Normally if you make a box 5 inch by 5 inch and try to print it out at full size on A size paper, SU will cut it up in to 6 sheets!

I finally found a workaround for this problem.

It appears that the drawing you are trying to print out for A size paper is too small for SU to handle. After all SU was designed to print out the 3D geometry of a size of a skyscraper on to A size paper. When the geometry you are asking to handle gets smaller than A size paper SU starts to do some weird things. This problem is encountered with number of other 3D software as well.

So the answer is simple. After drawing is done just scale it up by 10. And print it at 1 / 10 scale. You get full size printout. It works! By the way SU can handle geometry up to 9.3 inches by 6.5 inches per A size paper. If your geometry is larger than that, cut it up yourself and print it on multiple sheets. That way you have full control over the output.

until Bryce looked to be the right size

Interesting method. When I took the photo, I was not paying attention to number of pedestrians in the image. But they are there. It can be used to scale. I should intentionally include them from now on, in at least few of the building shots.

The PhotoMatch looks better. My first try was done on “corrected” image where lens distortion was removed and. And, that added different type of distortion. I think. The blue axis misalignment was quite bad. It is still not right on still. I think PM should have option to have third vanishing point up in the sky for case like this. By the way how did you get 165’ without knowing the base dimension?