An experimental V-4 wobbler

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raynerd:
Now I know what your making next, will you please get a wriggle on. :whip: :whip: :poke: :whip:

Only kidding, looking good Tim. I can really see how it is all fitting together now. It stupidly took me a while to understand how these magnets are working/what they are doing but now I fully understand, great idea!!

Chris

saw:
Nice progress here, looking very good. :clap: :clap:

spuddevans:
I can't believe that it has been so long since my last update, domestic duties and a week of visiting my better half in hospital have taken my attention til now.

Today I got started on the little "L" pieces that will connect the piston to the crank-pin. I found a piece of brass approx 18mm x 3.3mm x 300mm, made a rough sketch of what I wanted to achieve, and set to it.

I set it up in my vice on a parallel which was slightly thicker than the brass, so I had to use a second parallel to flesh out the brass to be gripped by the vice. Then I set up a temporary vice-stop and zeroed off the rear of the brass and the end next to the vice stop.

Then I moved to the centre of the 3.3mm width, advanced on the x-axis by 2mm and center drilled, then moved over 5mm and drilled again, repeat until 5 holes were started. Then I swapped over to drill for M2 tapping.

Once all those holes were drilled I opened the vice up and turned the brass onto it's side, pushed up against the vice-stop and tightened it up. Then I removed the vice-stop as it was in the way, and moved to the right coords and drilled 2mm holes.

Then I swapped the drill for a 4mm end mill and milled slightly more than half the thickness away.

Then I tapped the top holes M2.

and then carefully hacksawed,

then I gently hacksawed in the other direction to release them. But prior to releasing them, I cleaned them up as much as possible with a small fine file.

Then I gripped each tiny "L" in the vice and rounded over the bottom end with a file. I made 5 as I thought that would give me one to lose/spoil/have-as-a-trophy, and sure enough I did spoil one.

Here they are in place,

And that's as far as I got. I think next up will be making the outer support frames and some form of a base.

Tim

DaveH:
Tim,

That was very well done, :clap: :clap:
goodness they are tiny.

It's comming on very nice :thumbup: :thumbup:

DaveH

NickG:
Nice work there Tim and great photos as always. Going to be quite a powerful, compact engine this one. :thumbup:

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