Nasty little convexed RMD...

B

Bapple

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Joined
Feb 1, 2010
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1,164
Put my RMD on my new belt grinder this afternoon. Use 220 grit, 600 grit, then a leather belt loaded with polishing compound. Took me about 10 mins to get the final results.

This is a nasty, naughty convexed RMD. Scared the s@#t out of me when I tested the edge on my arm. :eek:

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Nice work! Nothing makes you smile quite like a wicked sharp edge :D I recently put a convex on my RMD and im loving it

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That bare spot on your arm will keep a smile on your face all week long! At least, it usually does for me :o

Great job on the belt sander! Gots to get me one of those this year...

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Think I cut myself just by looking at these two! Nice work!
 
Convexed my RMD the day I got it. But I had to do it the slower way with a series of strops with sandpaper on em. Still great results.
 
you can always tell a man loves knives at first glance by the patterns of missing arm hair
 
Nice work, I need to learn how to do this. Quick question, did you have to strop after the belt sander or was the polishing paste the final touch? Looking at going either paper wheels or belt sander.
 
Jake,

I finished this one one the belt sander. I also bought a leather belt to go on the sander, just loaded it with white compound and went to work. Same thing as stroping only 100 times faster :D. You can also finish the edge on the slotted paper wheel. Either one will polish up the edge and take off any micro burrs left.

Norcal, my wife makes fun of the patchy hair on my arms too :D
 
Scary sharp knife, man! I'm gonna have to invest in a belt sander! I'm far too busy to spend the time to do it by hand anymore...lol.
 
any reason you didn't go higher than 600 before stropping? I convexed my dogfather and a friend was swinging it, lost his balance and sunk it into his wrist and cut 95% of his middle finger tendon and something like 60% of his ring finger tendon.
 
I guess the only reason I didn't go any higher is because 600 grit belts were the highest offered where I bought my belts. Not sure going any higher would make much difference, but I'm not sure. Happy with my results though, things are like razors.

You friend is lucky that is all the damage he did, sounds like it could have been alot worse. Hope all turned out well and he is back to normal.
 
Great job on that edge, Bapple! Good decision getting a belt grinder, I don't know what I would do without one... :thumbup:
 
Bapple said:
I guess the only reason I didn't go any higher is because 600 grit belts were the highest offered where I bought my belts. Not sure going any higher would make much difference, but I'm not sure. Happy with my results though, things are like razors.

You friend is lucky that is all the damage he did, sounds like it could have been alot worse. Hope all turned out well and he is back to normal.
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What size belts are you using?

Lee Valley Tools sells 1x30 and 1x42 in a wide range of grits.
 
I use a 1 x 42 size sander. 600 grit seems to work well for me. Gives me a nice edge, not too refined and not too coarse.
I will check out the belts at Lee Valley though, thanks for the heads up.
 
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