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| Bluechip:
Being a dumb old fart, why all this fuss about rasps ?? Have I missed something ?? In my younger days, if I wanted to inflict hideous injury on some innocent bit of timber my weapon of choice would be a Stanley Surform in one of it's variants. In my youth I had to use a thing called a 'Dreadnought' file on copper bus-bars and they were murderous damn things. Needed about 400HP to shift the abominations. Purple in the face, going weak at the knees and hardly a copper shaving to be seen ... :bang: Off to me chariot, Sanatogen time ... :palm: Dave |
| S. Heslop:
I've got one of those dreadnought files, but it's beyond dull. I keep thinking that the teeth are so huge that I could probably revive it by grinding the tops with a rotary tool. But with the size and shape of the teeth i'm not convinced it'd be useful for much. I've also seen those surforms all over. I almost bought one a couple of weeks back, in fact. Couldn't find any large round/ half round ones though so I figured a rasp would be ideal for inside radii. I suppose maybe I could bend them into a half-round... But most of the rasp fuss is just because it's something that I feel should be possible to accomplish, and so I want to do exactly that. I guess there's a little bit of interest in finding uses for old files as well. Maybe save a few from the terrible fate of becoming dorky knives. |
| Lew_Merrick_PE:
My tuyere feed is made up of (4) 120 cfm 12VDC fans with an adjustable voltage regulator (built up from LM317 adjustable regulators) that allow me to feather the airfeed. At full speed, I can get quite a "fire" -- and adjust it down to the merest of a "breath" feed. |
| vtsteam:
Well I gotta say I like rasps (though I don't own any expensive ones) and have had poor luck with sureforms. In fact only bought one, once, and wasn't too happy about that after. There's a big difference to me between a flexible piece of sheet metal like a cheese grater and a solid steel rasp. I guess sureforms must work maybe for rough work in softwood, but I'll take a simple 4-in-hand rasp and rat tail rasp for preference for most work I'd want to do, Of course more shapes is better, but those are the minimum for me. I'd be hard pressed without a low angle block plane, and chisels too. |
| awemawson:
I gave up with Surforms - they'd be fine for the first ten minutes then rapidly declined in sharpness - I think that the formed teeth tend to bend back and put their heads under the parapet! |
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