STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[rave154]

OSSIE,

just to clarify, when constructing your flat-sheet metal toroid core.. when curving it around and joining the two ends, did you butt them together end to end.....or overlap them?

Thanks,

David. D

[callanan]

OSSIE,

just to clarify, when constructing your flat-sheet metal toroid core.. when curving it around and joining the two ends, did you butt them together end to end.....or overlap them?

Thanks,

David. D

Hi David,

About 10mm of overlap.

Regards,

Ossie

[gravityblock]

Below are two videos testing the spin down time with the dual magnets having like poles with the core and without the core.  I ran multiple tests and each test was within 5 seconds of each other.  The variation in time is due to the placement of the reed switch.  I followed the same procedure of placing the reed switch in both tests so the RPM's would be around the same when I cut the power.

Test 1A:  Spin down with dual magnets having like poles with the core.  Total spin down time is 100 seconds, http://www.youtube.com/watch?v=XGZsEvtLRYI

Test 1B:  Spin down with dual magnets having like poles with no core.  Total spin down time is 184 seconds, http://www.youtube.com/watch?v=rUaWethpd-Q

More spin down tests to follow within the next couple of days with the core being vertical and with opposite poles on the dual magnets.


GB

[captainpecan]

Please correct me if I'm wrong, but this circuit does not appear to be even in use in the demo unit.  Are they intentionally trying to throw everyone off?  Or am I just looking at this wrong?  This circuit is in the second red wire, and appears to be in parallel with the first red wire running to the battery.

(Edit) That trace may run backwards and make connection.  If so, that whole circuit board is in place for 1 diode? Why not just solder a diode?

[penno64]

Hey Ossie,

Nice work on the large coil motor. Would winding more wire have a detrimental effect on the motor. This would reduce current draw, yes.

Is that a Jaycars automotive Hall effect Sensor ?

If so, what circuit are you now using for switching ?

Kind Regards, Penno.