Oakbear":2i9alduf said:
Nice work!
I've always been interested in the idea of turning ovals, but tbh can't make head nor tail of how to do make a device to do this.
Maybe i'm being dim, but i have to say the schematics don't help! Is there an easy way of explaining how this device is made and operates?
Oh and the site seems fine to me with IE.
A big framed advert below, another banner on top, but the content views fine.
Hi Oakbear, if you are not used to read drawings, it's hard to understand what a drawing tells, but the working of this device is very simple, I saw last year a video of David Springle, explaining the working of his device, and I never saw such a simple working device.
In fact what you need is a rotating spindle, a (round) cam, which can be placed on a certain excentricity (in my case 17.5mm) and mounted on the spindle a slider moving on runners and two bearers on each side.
Mounted on the runners in the middle is the faceplate.
When the (round)cam is set on the excentricity of 17.5mm, with the rotating spindle the bearers are forced to follow the cam, in fact they slides around the cam, so not having a line contact. It's the same like a rotating propellor, but creating an oval.
Every handy man can easely build this device, as it is very simple.
If you have more interest, I have work drawings, and it will be a pleasure for me to send you these drawings, with an explanation what kind of material is used
Many thanks for your attention.
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