OT: Convex edge sharpening

I added to my favorite list and should have the money in a couple of weeks,Thanks for the info, Frank.:D
 
Originally posted by The Big Kahuna
In an attempt to contribute something back for all the helpful advice, the Delta SA150 1" belt sander with side disk sander is available on Amazon for $90. Here's the link:

http://www.amazon.com/exec/obidos/t...ls/103-8469614-7366220?v=glance&s=hi&n=228013

Much mahalo again for all the words of wisdom!

Wayne
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Wayne, go for the Delta!!!! Even if you have to order it online. I really like the Delta line of tools for home use.
We also used some of the home type tools in a shop atmosphere in the past and they worked really well as long as you supervised the people you put on them.
Like anything else the have to be maintained once in a while.:)
 
Yvsa,

You got me too curious with the discussion. I really like the belt sander you recommended.

I had to go out in the garage and un-bury my belt sander. Couldn't find the mfr decal, but the motor is 1/2 hp 1720 rpm. 4 inch belts have to be used on it, with the 6 inch disk sander with it.

Looks like the 4 in wouldn't be all that good for knives, no leeway for getting the angles in a khukuri. As in the above Delta, where you have open belt, my belt runs close to the metal framework holding the rollers for the belt. No twisting, turning latitude. Still a good belt and disk sander.

I have bookmarked the Amazon Delta for future reference. Darn good price, I think.


BTW, did you ever reproduce any of your flute tapes?

Dale
 
Originally posted by lcs37
Yvsa,

You got me too curious with the discussion. I really like the belt sander you recommended.
I have bookmarked the Amazon Delta for future reference. Darn good price, I think.


BTW, did you ever reproduce any of your flute tapes?

Dale
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Dale check the back side of your sander. I'm not sure if it's open, without the metal plate, in the back side or not as it's been a while since I've messed with one.
If it is you can split a 4" 0r 6" belt into 1" strips if you're careful.
And you can adjust the sander to run the belt on the side, center or where ever.
The sander would run in the wrong direction on the back side, but if you're a little inventive you might be able to make it work without getting sparkles in your eyes or down your shirt.;)

Dale I haven't. Actually with things the way they've been around the house lately I had forgotten all about it.
Drop me another e-mail if you would please as I accidently lost yours.:(
 
Ok, here comes another newbie question, from the guy with the brand new Sher AK 15"

It was not really that sharp, but not all that dull either. I have read all the stuff about convex and sharpening with a strop, sandpaper and mousepad, etc. Having nothing but the mousepad, after a few days I figured, what the heck, so I just used my old model Sharpmaker. It seemed to me that with that much metal, I could fix anything I might harm.

Well, the Sharpmaker has it sharp enough to slice newspaper cleanly and shave the hair on my arm. Plenty good for me (I have no real desire to drop a silk scarf on it, blah, blah, blah). So, the question is: Am I doing something to my convex edge that I shouldn't be doing? Is it detrimental in anyway? I mean, it was so easy to get this thing sharp with a regular ol' Sharpmaker, I wonder, everytime I see thread after thread on how to sharpen a convex edge, am I missing something here?
 
Just FYI - that Delta sander (SA150) is actually the smaller disc model (5"). Mine has the larger disc (click the link at the bottom of that page for the 1"/8" combo - SA180)

Sale Price = $129

Also, Harbor Freight Tools has the SA180 for sale for $99 with FREE shipping.
 
Originally posted by ichor
Ok, here comes another newbie question, from the guy with the brand new Sher AK 15"

I mean, it was so easy to get this thing sharp with a regular ol' Sharpmaker, I wonder, everytime I see thread after thread on how to sharpen a convex edge, am I missing something here?
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First of all if I haven't bid you welcome here then let me welcome you to the Cantina or Psycho Ward now. Pull up a barrel or whatever, sit back, relax, if you can among us weird ones, and join in the palaverin.;)

Yea, you are John.;)
I could leave you hangin there, but I won't.:D Let's see if I can explain it without confuseing you too much.

John it goes beyond a convex edge on the khuks, way beyond. Way back when, May 1999 and before, all of the khuks were made with a convex radiused edge, just figured out that "beveled" didn't really fit here.:rolleyes:

Having a convexed radiused edge means that the convex started at the top of where an edge bevel would start. The current edge bevels start about 1/2" to 5/8" or so from the edge and "edge bevel" fits here because it's no longer fully convex.
Bill talks about the "almost convex edge" that Sher puts on his khuk's and for the life of me I can't figure out what that
means.
An edge is either convex or it's not, can't be almost IMO.
Many of us are purists in that we want our khuk's sharpened as they should be which is like an axe blade.
The convex edge, even a small one, is many times stronger than the beveled edge you get with your Sharpmaker.
(Someone posted a pic here a while back that shows the difference really well, but I don't know where it's at, Anyone care to dig it up for John?}
Another advantage of having the convex extend a ways up the blade is that they don't stick in soft targets as badly as a flat or sabre grind with a secondary edge bevel.
And another advantage is that the convex edge doesn't chip out as badly as a straight bevel does on hard woods.
Getting a convex radius on your khuk or any other knife is a lot easier with a slack belt on a belt sander which is what brought us to this point.

Hope that I didn't confuse you to much, it would be easier if we could have a chalk board on blade forums that we could draw pictures on.:D
 
Yvsa - did you just change your sig. line? I was wondering when a comment would finally appear next to the ole digger...:D

Are we not all shovelers ourselves?
 
Originally posted by pendentive
Yvsa - did you just change your sig. line? I was wondering when a comment would finally appear next to the ole digger...:D

Are we not all shovelers ourselves?
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Dan I changed it a day or two ago. Like it?:)

And yep, we're all shovelers in one way or another. Some are productive and clear the hole, some are not.:rolleyes: :D
 
Originally posted by Yvsa
...Some are productive and clear the hole, some are not
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There are some who fill the next man's hole with their own.

And some that toss it over their shoulder back into their own hole.

And some that are a combination of all the above...:D

;)

Me? I prefer a crawler backhoe myself...:p

Yes, Yvsa, I like your new sig. line.
 
Thanks, Yvsa; thanks, Pen. Looks like it's the Delta for sure. Just deciding between the SA150 or the SA180.

Mahalo

Wayne
 
Sorry for the multiple post, but here's an update. I checked out the Harbor Freight site but could only find the Delta 1" with a 5" disk sander for $79.99 (And free shipping! Shame the free shipping doesn't extend to Hawaii). But I did come across a brand called Central Machinery which Harbor Freight is offering: 1" belt with 1/4hp motor (no disk) or 1" belt with 1/3hp motor (no disk also) both for $39.99 per unit; or 1" belt + 5" disk for $59.99.

Just by looking at their prices, I take it that Central Machinery perhaps does not have the reputation that Delta has. Is this true? Which one would do you think is better?

Sorry for the many questions. But thanks in advance for the advice.

Wayne
 
Originally posted by pendentive
Just FYI - that Delta sander (SA150) is actually the smaller disc model (5"). Mine has the larger disc (click the link at the bottom of that page for the 1"/8" combo - SA180)

Sale Price = $129

Also, Harbor Freight Tools has the SA180 for sale for $99 with FREE shipping.
Click to expand...

Dan, I couldn't find it on Harbor Freight. Will you dig up the link for the guys?

I would go with the SA180 Delta even if I had to save for a while.
It's $129.00 here........

http://www.amazon.com/exec/obidos/t...pd_sbs_hi_1/104-9475633-1611155?v=glance&s=hi
 
I guess it was only a temporary sale...:confused:

Anyway, I was just in Lowe's yesterday and they had the SA180 priced at $99 and the SA150 at $89. Occasionally, Sears and Home Depot will also have them on sale for the same prices. Just keep you're eyes peeled.

You could always buy it direct from Delta (right now at $99.44) if you can't find a retailer in Hawaii:

http://www.delta-tools.net/delshopsa11b1.html

Best-o-luck!
 
As far as brand names are concerned, just let me say...

I've purchase many off-brand tools and have always got what I paid for. Just 2 months ago, I dumped a Rand 4x36/6 combo sander in the garbage out back after barely 3 months of weekend-warrior service - I really couldn't be too upset because it only cost me $20 :eek: and I needed it in a pinch.

Anything I plan on keeping and putting to good use, I buy from a recognized brand name.

Here's a sample ranking of power tools (the kind you find at Home Depot, Sears and Lowe's):

1.Porter Cable
2.DeWalt
3.Delta
4.Ryobi
5.Craftsman
6."Generic Brands, et al..."


I'm sure I've left off a few I can't remember...:rolleyes:

For me, Delta is great because it's low-end professional quality. It's not meant to be used and abused 24-7 like Porter Cable's equipment. However, it's much better than Generic brands and not that much more expensive.

Dan
 
Thanks again for all the helpful advice. Looks like an investment in the SA180. And when I land in Hawaii again, I'll drop by Sears and Home Depot for a look. Worst come to worst it'll be Amazon with free shipping to Hawaii. Sadly for small islands, even brand stores only have a limited choice and most of the web shops (including Delta's own) have to charge a lot for shipping modestly heavy packages (for the SA150/SA180 it would have been 1/3-1/2 of the purchase price).

Mahalo again!

Wayne
 
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