wiggler problem

[Garry Coles]

>:(Hi everyone
Got a problem using my wiggler set. While trying to find the edge of a driving rod for the loco i,m building, I found that it would not deflect or fly off until I had turned the feed handle at least about 10 thou!!! Could not work this out until I put my 3.5x glasses on, and on closer inspection found that the wiggler was sticking to the metal by magnetism. The wiggler itself is not magnetic, nor is the driving rod, it seems to be the working holding bits have somehow become magnetized!!. Could this be anything to do with the fact that my milling machine is DC which as you might know has magnets in them. it seems to be getting worse with time. Has anyone any thoughts on this or know to solve this problem.
Cheers Garry

[AndrewP]

Hi Gary
A degausser, as used by TV engineers I believe, may do the trick, or simply heating the wiggler above 730 deg C (assuming it is steel) will also demagnetise it.

Cheers Andy

[SteveW]

Gary,

I've had similar problems with screw drivers and just whack them against something hard a couple of times to make them forget about being magnetised. This saves upsetting any temper in them.

[Garry Coles]

Thanks for the reply from the previous two, but you have missed the point. It is'nt the wiggler thats magnetic, it seems to be all the work holding items and the milling table.

[AndrewP]

Sorry Gary, point mised completely as you said.
Turn a new wiggler from non-magnetic material?
I don't know what style of wiggler you are using but looking at my set I reckon even I could manage 3 out of 4.

[SteveW]

Gary,

1. Oops! sorry.

2. Can you rotate the motor in its mounts to reverse the external field? Maybe do this every six months ;D.