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Diable Tonnere â€“ my latest project.

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Daniel Uhrenholt

Wed Aug 19 2009, 07:58PM

Registered Member #125 Joined: Fri Feb 10 2006, 01:52PM
Location: Aalborg, Denmark
Posts: 155

Hi Folks,

This week I will start on a new DRSSTC, and it will probably be the biggest I will ever build.

Some specs:

500nF primary capacitor

One secondary coil 200*920mm AWG ??, I got this coil from Finn + a toroid similar to the one I designed for Thumber, but a â€œlittleâ€ smaller, so the Fo should be around 40kHz.

A trusty full bridge(the one I use at the Universitarium in Aalborg)

3 phase power

I just started drawing the parts in SolidWorks, and hopefully I can start CNC milling the parts sometime next week. So the first pictures you will se is a 3D rendering of the coil.
There is not much new to this project, as it's only the mechanical part I need to do, and the driver is Finn Hammer's design...
I`m hoping for 2meter+ sparks:-)

Project goals:

It has to be a cool design

It has to be driven without a breakout point, so a lot of decoupling in the primary circuit, and a lot of strike rails...

It need to be mounted upside down (I need this for a show sometime in November)

It has to be easy to take apart, and setting up where ever I go...

Higher power audio modulation is a must

I just finished my MIDI interrupter this week

And it has to be done before Cambridge Teslathon... So just a little stress from the beginning:-)

Cheers, Daniel Uhrenholt

Daniel Uhrenholt

Mon Aug 24 2009, 07:15PM

Registered Member #125 Joined: Fri Feb 10 2006, 01:52PM
Location: Aalborg, Denmark
Posts: 155

Hi Folks,

I did some drawing this afternoon, and I think it turned out really nice:-)

This is just the overall design, I have some other ideas regarding the primary coil, that I want to move up and down easily to change the coupling. And a nice way to mount the secondary coil, without having to screw it all together, just put it down the middle and turn it for a little click, and I will be ready to make sparks all day long

I'm a bit stressed this week, so the final design will be made next Monday...

I know that the strike rails on the drawing will act as shorted turns, but it was the easiest way to draw it like that

Oh yes, the primary will be a pain in the a** to wind...

Cheers, Daniel Uhrenholt

Finn Hammer

Mon Aug 24 2009, 08:17PM

Registered Member #205 Joined: Sat Feb 18 2006, 11:59AM
Location: SkÃ¸rping, Denmark
Posts: 741

Naming it after a Haitian Loa is wicked indeed.
And making it unnecessary complicated is also very wicked.
You have my attention.

Cheers, Finn Hammer

Marko

Mon Aug 24 2009, 10:11PM

Registered Member #89 Joined: Thu Feb 09 2006, 02:40PM
Location: Zadar, Croatia
Posts: 3145

Daniel,

This is easily one of most badass looking primary coils I've seen... Although it's easy to be made jealous by CNC machining! :P

Is the secondary indeed going to be entirely corrugated like shown on the drawing? Is the winding going to be inside some sort of a plastic pipe?

Looking at that primary I feel like some copper tube grading rings on the secondary and a multi-ring toroid (themed like the primary) would be more fitting in appearance... Just cake care for the Rule of Cool not to make your design impractical! :P

Cheers,

Marko

Sulaiman

Mon Aug 24 2009, 11:20PM

Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140

If you're going to run it 'upside-down' would a spherical 'bottomload' be better?

Lovely rendering of the primary.

Daniel Uhrenholt

Tue Aug 25 2009, 03:57PM

Registered Member #125 Joined: Fri Feb 10 2006, 01:52PM
Location: Aalborg, Denmark
Posts: 155

Hi Marco,

The secondary is placed inside a really neat PVC pipe that Finn helped me to get, it's the same as he used for his V twin.

And of course it need a multi-ring toroid

1251215643 125 FT74660 N852894795 379611 9641

The only problem I have, is that I don't have the time it takes to make it now, and neither the money for having the parts laser cut...

Sulaiman,

Probably, but why bother when it will work just fine with a toroid

Cheers, Daniel

Daniel Uhrenholt

Fri Nov 20 2009, 10:10PM

Registered Member #125 Joined: Fri Feb 10 2006, 01:52PM
Location: Aalborg, Denmark
Posts: 155

I'm back on the project:-)

Now the plan has totally changed, as I would like to change the tapping point when the coil runs, and also change the coupling. This is a really big project, but I am almost done with the CAD model of the primary, and I will start CNC milling the parts tomorrow morning.

CAD model of the primary and pictures of some of the parts will be posted tomorrow.

Cheers, Daniel

Daniel Uhrenholt

Sat Nov 21 2009, 03:04PM

Registered Member #125 Joined: Fri Feb 10 2006, 01:52PM
Location: Aalborg, Denmark
Posts: 155

Hi all,

Today I made the first part of the primary holder, but it is actually 10 smaller parts that fits nicely like a puzzle.

Here is some pictures:

Unfortunately I had to leave the shop early, because of the annual Christmas lunch in the local Taekwondo club. But tomorrow I will make some more parts, and hopefully sometime next week you can see the primary holder...

Cheers, Daniel

Daniel Uhrenholt

Thu Nov 26 2009, 09:32PM

Registered Member #125 Joined: Fri Feb 10 2006, 01:52PM
Location: Aalborg, Denmark
Posts: 155

Hi all,

Today I milled some nice Tufnol spur gears for the secondary lifting system:-) Tomorrow I will mill the rest of the parts, and sometime Saturday I hope it all will be done... But there is still a lot of work to do.

Cheers, Daniel

rp181

Thu Nov 26 2009, 10:02PM

Registered Member #1062 Joined: Tue Oct 16 2007, 02:01AM
Location:
Posts: 1529

thats awesome! do you do it manually, or use a CNC?
BTW, great machining on the primary holder, can't even see the seams.

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