Another dagger?!?!

Those chairs are referred to as Wassily chairs, designed by Marcel Breuer and produced by Knoll. This is one of those iconic designs that has been knocked off extensively. Real ones are worth thousands of dollars. The knockoffs... are worth dozens of dollars. Neither the real ones or the knockoffs are comfortable, which is why we put big pillows on them. :)
 
My dad has a black one of those utterly worthless IMHO but the architect in him says form over function. I can remember growing up and having to be careful around it and all his Danish teak furniture... Laughable - now nobody sits in it not for fear of ruining it but because it's ungodly uncomfortable- now that eames recliner that's a chair I can get behind.
 
Quick question Did you draw file this dagger from 1084? Is it the same material that you were making the guard out of? I have some 1084 that I am going to shape with a file and didnt think I would need to anneal but if you were buring up drill bits how did the files survive?
 
The blade is made from Aldo's 1084, but I'm not using the draw file method. The piece that caused all the problems with the drill was cut from another piece of 1084 (the thicker piece). Not sure what the difference between the two is, or whether I was work hardening the piece with my drilling. The blade is much easier to work than the guard. Even after all that effort, I'm still contemplating starting over with the guard.
 
For the time being this project is on hold. In all the excitement of building a grinder and getting a new work bench, I've misplaced the blade. If it turns up again, I'll resume. Until then, I'm on to the next thing... whatever that is.
 
Happy days are with me again... I found the blade! Now I can stop spending all my free time looking for it.
 
You may suggest whatever you wish! At the moment I only have a 6" contact wheel... waiting on my 2" wheel to be shipped.
 
The blade is now wrapped and ready to send out for HT. On to designing the next thing while I await its return.
 
Thanks. The blade was made from 1/8th inch 1084 from Aldo.

P.S. The blade is on its way to Meadville now.
 
Last edited:
Today I made the bold (for me anyway) decision to use the new grinder to do some of the post-HT decarb removal from the dagger blade. I made VERY light passes over the bevels using the 80 grit belt to get the thing down from "thin dime" thickness to something more like paper thickness. I won't pretend to be entirely pleased with the results. I'm still trying to learn the technique, and the angled plunges on this blade aren't the easiest to accommodate on the grinder. Mostly, I relied on the 2 inch contact wheel at the bottom of the platen, gently making 2 - 3 strokes before dipping in cold water. I never once saw even so much as a single line of steam rise, so I'm pretty sure I didn't screw up the temper.

Anyway, I think I will do the rest of the sanding by hand ... on this blade at any rate.

DSCN6776.JPG


DSCN6777.JPG
 
80 Grit? What happened, couldn't find 36?:rolleyes::p;)

Seriously, use higher grits Greg, 120-220. You are just starting out and they will be much more forgiving.
 
I know, Patrice... but ... well... just but. :)

Okay, I'll admit, I thought about shifting up to a higher grit, but I figured it would make me overconfident, make my light touch too heavy, and I'd end up screwing up the temper. I knew at 80 grit I'd be VERY slow and cautious, and still remove some metal.

If I do any more machine grinding on this blade, I promise I'll put on a different belt.
 
Lookin great either way. Everyone has their own method, every grit works different for every person. I grind everything on old 36 belts, just happens to be what works for me.
 
FWIW, I do my clean-up grinds on a new 120 grit blue zirconia belt. It cuts really flat and clean. I ten do it again on a 220 grit blue zirconia. From there the bevels are well set to either use finer belts, go to the stones, or start hand sanding.
 
Thanks for the tips. This is obviously new to me so I'm trying to feel my way through without ruining blades I've already spent a lot of hours on. :) Of course, I know a certain amount of ruination is in order, but I'd like to keep that to a minimum!
 
I did decide to do a little more grinding, this time using 180 grit belts. Now I'm hand-sanding from here out.
 
Back
Top