Fusor Forums

Thank you for moving me to the plasma Club . I plan on buying a CVD 700 before I build another Fusor. I am also thinking about building an Automatic radiation kill switch that will shut down the power if unexpected radiation occurs. Most of the experiments I want to carry out don’t require fusion to occur but the machine could potentially generated x-ray. It may take me a while to get to the neutron club still trying to get a hold of a Diffusion pump, but I might build one over Christmas break if I don’t find one by then.

Hello I'm quite curious as to how I can build a demo fusor. I'd like to do something soon so I can have some experience with the whole fusion process and I'd like to build something cheap as I can learn with it for now. Then build the big one later. Anyways, if someone could tell me or if the original poster could tell me how he built this one I'd like to know. Thank you very much.

-Chad
Michigan

For vacuum I used two rotary air conditioner compressors ones out put in to the others input one pushes against atmosphere the other against the vac of the first and they got down to the micron level. I recommend setting them in a cold bath of ice water to prevent them from over heating and wearing out to fast I got both mine off eBay I can look up the part numbers if you want them. I used a clear fish bowl from Wal-Mart as the vacuum chamber this worked very well I recommend the ones that are ¼ to ½ inch thick side walls. For my hv pass threw I used PVC fittings one I filled with 5min epoxy to make it air tight. I used a silicone cooking mat thing from the kitchen isle to make the seal between the bowl and the aluminum surface. Vacuum line was a simple copper line with a terminal at one in sealed with an o-ring and washer. My HV source is a rectified 10kv neon light transformer I bought 15kv diodes of eBay for $20 I think. Outer grid was a large coil of copper wire.

Thank you. So this costs around 200 dollars you say? To what extent of knowledge do I need to know with this. To build and such. I'm at a beginning stage but I learn best with hands on and this is easier then the full blown fusor. Thank you for your help.


-Chad
Michigan

Here are a few more photos from way back in 2007.