4 replies to this topic

[Sambo]

Hi,
I was thinking of attempting to make one of these machines, but I can’t find any good pictures or dimensions anywhere. Has anyone got one or used one, there are videos on the website (http://www.ctpyro.com/index.html) but I cant get very much from them.
I think it works by the motors driving at different speeds creating an off-axis spin on the shell(sorry for the rubbish discription) you're probably best looking for yourself lol. Any pictures would be appreciated.

Thanks
Sam

Edited by Sambo, 10 January 2008 - 12:02 PM.

[dr thrust]

excuse my ignorance chaps!, but how would you fuse the shell start poking holes in there?

[Sambo]

You put a small magnet in the fuse hole and locate it after the shell has been pasted with another magnet or a piece of steel etc, then cut out around the magnet.
I presume the passfire tube to the centre of the shell is already fitted, so i think you just slot the fuse in and bond around it with hot melt glue.

[GalFisk]

The two motors are computer controlled to create the spiral pattern. I don't know if it's possible to get a good pattern by just running the motors at constant but different speeds.

[Arthur Brown]

Super little find!

Way over designed, could be so simple and so much cheaper and better.

Where do they get half inch gummed tape?