I am building my own square circle. I'd like to use a phantom tube for the circle. Has anyone made their own? Can anyone give me advice on how to make my own?

I believe you are asking how to make the phantom tube. I am not sure how this will benefit you over the standard tube arrangement but I do know that there is at least on company presently making a SC with a phantom tube.

Before building the PT in metal, make a prototype out of stiff (construction) paper. When you get the dimensions right, you can use the prototype for a template to cut the metal from. You will need a set of slip rolls or a sheet metal shop that can roll the tube and cone for you. Then weld or solder the seams and weld or solder the two pieces together. I assume that you know how the pieces fit together. There are several other posts here in The Workshop that cover the other parts of the SC. Use the search function for "the Workshop" to search "Square Circle".

Thank you. Yes, it was by search SC on these forums that led me to making my own. Further reading is what has takien me to using a phantom tube as the circle. Advantage: once everyting is produced, the circle can be set aside and more productions made. Your instructions are settign me along the path.

An alternate handling would be to remove the square and just produce the items from the tube. I guess using a Phantom Tube would allow for showing the tube empty after ditching the Square, but then I guess I am not sure why you would need the Square in the first place.

>> but then I guess I am not sure why you would need the Square in the first place.

The combined PT and SC give you a small backs flat silk load in the PT, then a larger load in the SC

I produce 35 foot silk streamers out of the PT, I just show it empty, each in so my had comes out the other side
then grab the stream as I pull it out of the tube, try to make it look like I grabbed the streamer on the other side (visable) side of the PT.

Then I put the PT back in the empty box, and continue with standard SC moves and produce a 6ft butterfly silk from the normal load,

Thanks btedeski - that's the sort of effect I have in mind.