gregmcateer":34pywvxe said:
Where did you get good priced rare earth magnets?
I might have answered my own question, after a web search. But that has raised another - how do you know how much you need? I.e. what sort of' pull' do you need for e.g. behind your grinder, or as a tool holder?
Thanks in advance
Greg
Go on amazon etc. Search Rare Earth Magnets. They are rated. Buy some strong ones. If you get the ones shaped like polos you can just screw them in to holes. You can gang them also. Two together is stronger than 1. But at some point 'Science!' intervenes and mass and density start affecting it and it doesn't work anymore. You can't keep stacking them and create an Evil Supermagnet. It's a tiny bit like Cats and Gravity. So the cat is just about the largest you can get before Gravity takes hold of mass. Hence they can fall off sh*t and not die. Same size/slightly larger and importantly more mass and they become jack russels falling 6 storeys and
not surviving.
Just buy some strongish ones Greg. Too strong and you can barely pull them apart and they whip back and give you blood blisters.
You can but some mad magnets now. Look up magnet fishing on youtube. People pulling bikes out of canals with a magnet half the size of your hand and a length of rope. Quick google for some scrap trolly wheels etc, a scrap broom handle etc and you're there.
Adaptaion to my bench that I'm really glad I thought of. Really handy to have rules/marking knife held on the legs out the way. Photos are terrible.
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