[Home][2017 Index] Re: [TCML] VDG Collector [Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [TCML] VDG Collector

The biggest issue, is the hole where the belt comes through. If you can make that a gradual curve, or can make the belt small in relation to the diameter of the bowls they are great.
My design has the down side of a large belt-hole and a not very well smoothed entry, If I could improve this I would get a much better output. Although on a good day It will arc from top to bottom, roughly 800mm
I can't say what the change rate is, I did measure it when I built it, and I've improved the charging a number of times since, but I can't find any reference to the figures in my notes.
The motor is small Como drills 191D, 12V ~ 3A, geared 2:1, but has plenty of power for the job, the belt runs at around 3M/Second flat out. 

Derek


On 08-Feb-17 02:51, Matthew Sweeney wrote:

I've been able to get 3 foot sparks using two of those 14" Ikea bowls..
They work extremely well.



On Mon, Feb 6, 2017 at 6:38 PM, Ed <evp@xxxxxxxxxxx> wrote:


Awesome!  Looks like a small motor - how long does it take to charge
enough for a spark?  Have you measured the output current?

Ed


On 2/6/2017 2:27 PM, ExtremeElectronics.co.uk wrote:


I made mine from two Ikea bowls, a sheet of aluminium and loads of filler.

http://www.extremeelectronics.co.uk/static-machines/1mv-van-
de-graff-project-2/

Commercial ones like that would cost a fortune to manufacture. Your only
other option would be see if they sell spares. Or contact a friendly metal
spinning shop.

Derek


On 06-Feb-17 20:39, doug wrote:


Can anyone tell me where I might find a sausage shaped top load like the
one pictured in this website?
http://wikivisually.com/wiki/File:Van_De_Graaff_gen_03.jpg

Doug J.
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla



_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla


_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla