Comments on: Spiral Blades: Good for Dovetailing?

By: oldster

oldster — Thu, 14 Jul 2011 00:01:15 +0000

There is some flexibility side to side, but I have never seen anyone use the saw in the fashion that you describe.

When the blade is tensioned, and you are using the blade to do the work, it is extremely rigid where it is important.

I’ll be at the WIA conference in Cincinnati, and I will have both the Titanium and the Aluminum frames there.

Since Chris seems satisfied…..

Lee (the saw guy).

By: mdgarnett

mdgarnett — Fri, 08 Jul 2011 17:35:42 +0000

A question about the Knew Concepts saw: have you tried both the aluminum and titanium versions? I got to try the aluminum one recently and felt it might be a little too flexible tho’ I didn’t have any trouble with it. Just wondering if the extra for the titanium is worth it if you care to express and opinion.

Thanks

By: oldster

oldster — Thu, 07 Jul 2011 02:43:33 +0000

You might try these blades:
These are spiral blades made for cutting wax (jewelers use them). The one shown in the video appears to have a very fast gain (relatively few tpi), and appear to be different than the ones that I suggest below.
They are available from:

http://www.Riogrande.com
light duty #2 110-065
med. duty #3 110-066
hvy. duty #4 110-067

They are sold in one doz. packages

Also available from http://www.Ottofrei.com
http://www.ottofrei.com/store/home.php?cat=1142

These are made in Germany, and may be the same as what Chris was using.

Blue tape on the saw frame?
I have added a blade checking gauge to the saw frame by adjusting the laser cutting pattern for the frames so that it include a pair of parallel edges that are 5-1/8″ apart on the rear spine of the frame. The blue tape was to show Chris this new feature.

Lee (the saw guy)

By: woodgeek

woodgeek — Thu, 07 Jul 2011 02:13:56 +0000

I get my spiral blades from Lee Valley. I believe they’re Olson’s.

Deneb turned me onto using spiral blades for dovetail waste about four years ago at a woodworking show.

By: Frank Strazza

Frank Strazza — Wed, 06 Jul 2011 16:03:44 +0000

Hello Chris,

The blades that I use for coping out the waste are found at….Sears, of all places! I get the fine coping saw blades. They work great, they are thin in the direction from teeth to the back of the blade, so you can make a pretty easy turn. Mine just develop that “twist” as I use it, but I suppose you could twist it with a pliers. I use them on the push stroke, you will have some tear out on the back side, but the knife line keeps that from causing any problems. I can cut right above the line with them. Give it a try, a pack is only $2.50!

By: TheHoneyBadger

TheHoneyBadger — Wed, 06 Jul 2011 05:14:13 +0000

Dear Chris,

Will look for blades over here als well, but as you know you guys over there have way better supplies. When your video finishes theres this link to another video about a guy who makes dovetails in 3,5 minutes….. DAMN, oooppps, I’m sorry! Gonna have dinner now, chicken(s)!

All the best man, Erik.

By: pmcgee

pmcgee — Wed, 06 Jul 2011 03:36:56 +0000

I am remembering Frank Klausz with a ?bowsaw? blade with a ninety-degree twist in it. A very cool video.
He pushed the vertical section into the saw kerf, and continued to push forward, using the horizontal teeth of the rest of the blade. I always meant to try to butcher up me one of those.

By: Christopher Schwarz

Christopher Schwarz — Wed, 06 Jul 2011 03:18:18 +0000

Ignore it. It’s a handy length gauge for blades. Some scrollsaw blades are too long for the Knew Concepts. That tape is a length meter….

By: Christopher Schwarz

Christopher Schwarz — Wed, 06 Jul 2011 03:17:13 +0000

Dean,

Wish I knew the ppi of the blades we tried. I’ll look into the other options out there. Thanks for the link.

By: Christopher Schwarz

Christopher Schwarz — Wed, 06 Jul 2011 03:15:31 +0000

Nope. No marking on the tail board. The trick is that the spiral blades have a section that has no teeth. So you start the blade moving against the work and it doesn’t cut until you get 1/2″ into the blade. Try one. You’ll see.