ratbldr427
Titanium
- Joined
- Mar 21, 2006
- Location
- jacksonville,fl.
I came across a cheap pos mag v-block that was very weak,that's probably why I ended up with it.
So I pulled it apart to see if there was anything I could do to make work.It was a very simple deal,had 3 Alnico dead magnets,27.5mm od x 18mm ht with axial poles.A little searching on E-Bay turned up a lot of cheap Neyodium rare earth magnets.Previously when I had bought them they were pretty expensive,however the Chinese have dumped a lot of them on the market cheaply.
I couldn't find any the exact size and although I could have installed some larger od ones in the holder. I settled on some 25mm od x 15mm ht and some 25mm od x 3mm ht grade n50 and stacked them to get the correct height.I still had to add some iron shim to get the fit.Cost about $35.00.
The stack gave me approximately 60 lb.s pull ea.(If I could have found some 30mm N52 grade I would have approx.100 lb.s pull).Didn't want to machine any to fit or spend to much in case it didn't work.
It wouldn't hold its own weight on a vertical surface,now it takes about 35-40 lbs pull to make it slide on a metal surface and holds a round pretty good in the v.
So I pulled it apart to see if there was anything I could do to make work.It was a very simple deal,had 3 Alnico dead magnets,27.5mm od x 18mm ht with axial poles.A little searching on E-Bay turned up a lot of cheap Neyodium rare earth magnets.Previously when I had bought them they were pretty expensive,however the Chinese have dumped a lot of them on the market cheaply.
I couldn't find any the exact size and although I could have installed some larger od ones in the holder. I settled on some 25mm od x 15mm ht and some 25mm od x 3mm ht grade n50 and stacked them to get the correct height.I still had to add some iron shim to get the fit.Cost about $35.00.
The stack gave me approximately 60 lb.s pull ea.(If I could have found some 30mm N52 grade I would have approx.100 lb.s pull).Didn't want to machine any to fit or spend to much in case it didn't work.
It wouldn't hold its own weight on a vertical surface,now it takes about 35-40 lbs pull to make it slide on a metal surface and holds a round pretty good in the v.