Specifying a magnet is all well and good, but would it make life a little easier if the strength of the field at a calibrated height be specified instead?
I don't think so, as the proliferation of magnetic field measuring tools amongst slotracers is pretty low
On a more serious note: No need Greg, in 99% of the cases just using the advised magnets will do. As it most likely would have done on the Rock Bull Ring.
But the combination of weak magnets, long straights and high speeds just compounded the issue.
I agree with all above, given that Maurizio has suggested we use the CN11, as the optimum magnet to use, wouldn't this be tested by the engineers on a STD slot it car, and be deemed as capable of its task. The Slot it could confirm the strength of this magnet, I presume it is an N52 neodymium grade magnet.
As a note I see in the catalogue the magnet part number is cn01, or is there a new magnet CN11?
I think its a typo Dave, CN 01 should be ok, in its own documentation (the PDF I linked to in your own topic) they use both the CN 0(1)1 and the CN 02 in the illustration.
Is it possible to have too strong a magnetic field?
Large, super powerful neo magnets are available on eBay for pennies, I use dozens of them in my studio, and would prefer to re-purpose some of those rather than buying more of the fragile and brittle CN11/CN01.
As a matter of fact...yes you can. In order to avoid any lap counting issues we used strong(er) magnets for the Suzuka track. No lap counting issues, but if you pass the finish line too slow...you do notice your car being slowed down even more by the magnets under the track.
Stronger magnets could stop a car dead in its track
with kind regards