Menu:

A New Saw Vise 03/29/2009
 

The built-in doors are done and I ordered the hinges so I've had some free shop time recently. So I've been cleaning up the shop and making a lot of small tools and items for the shop while I wait for the hinges for the built-in doors to be delivered. After putting up some items for sale last week, I was a little surprised that the cast iron saw vise sold as quickly as it did (thanks Dave!). I have had a wooden saw vise on my list of shop projects to build for awhile now. Selling my old iron saw vise caused that project to move up to the top of the priority list so this weekend I cobbled one together.


The entire vise, with the exception of the screw is made from red oak from the B.O.R.G. The top jaw is about 18" wide, twice as wide as the iron vise. This will allow me to file all of my backsaws without constantly repositioning them in the vise. The tops of the jaws stand about 15" above the bench top when clamped in the bench vise. This gets the saw up to a comfortable height for filing while standing up. The vertical member of the front jaw is about 12" long. The vertical member of the rear jaw is about 18" long. This allows the saw to be removed from the saw vise without removing the saw vise from the bench vise (the saw vise is held in the bench vise by the rear jaw only). The vertical member is tenoned and drawbored into the upper jaw with 3/8" oak pegs.


Here you can see how the back vertical is about 6" longer than the front. The front vertical member has a 1-1/2" through hole bored in it and the rear vertical member has a 1-3/8" hole bored and tapped for a 1-1/2" wooden screw. The head of the wooden screw is made from a piece of an old maple hand screw clamp that stripped out. The screw itself is made from a 5" long section of 1-1/2" birch dowel that had threads cut with the 1-1/2" woodthreading kit from Woodcraft. I then added glue to the screw head and screwed the screw into the head. After the glue dried, I drilled a 1/2" through hole through the head and screw for the 1/2" oak dowel handle. After the hole for the handle was bored, I cut the screw head to an octagon shape and filed and sanded it. I bored a 5/8" hole in the bottom of the rear vertical member so the vise can be hung on the wall on a peg when not being used.


With the vise disassembled you can see how the clamping forces work. There is a 1/4" thick piece glued and nailed to the inside bottom of the short vertical member and also to the corresponding location on the long vertical member. I only glued these pieces at the center nail location to allow for wood movement. It's hard to see in these pictures but there is also a 1/4" thick strip glued to the top inside of each jaw. This piece is beveled from top to bottom so that all the clamping pressure is exerted at the very top edge of the jaw. This piece is also planed slightly hollow at the middle so that the outside edges contact the saw plate first and then the compression during tightening of the screw ensures that the saw plate is held securely along its entire length. I finished the entire thing with a coat of Minwax Puritan Pine stain (because I had it from a project from several years ago) to give it a slightly aged look. I may put on some linseed oil tomorrow, however, if I do I will not oil the inside of the top jaw to keep saws from slipping. Mark another one of the round tuit list!


 


Comments

Duane

Mon, 30 Mar 2009 07:40:30

Very Nice. I'm looking forward to learning to sharpen my saws, and I think a vise like this would be in my future.

 

Mon, 30 Mar 2009 10:02:15

I am glad to see that I am not the only one with a list.

I bought an iron saw vise when I was an apprentice and used it until the day I dropped a freshly sharpened blade into the metal jaws of the vise. I sold it and have used wooden chops ever since then.

Stephen

 

Mon, 30 Mar 2009 10:12:16

Duane,
It wasn't hard to make at all. I do recommend it.

Stephen,
I certainly do have a list, the problem is that things seem to get added to it faster than they get checked off. And I sympathize with you on the saw teeth. I've chipped too many chisels and plane iron to count. I've slowly been replacing a lot of my metal tools like squares & straightedges especially (which like to damage your work when you drop them) with shop made wooden versions. As a side benefit the wooden versions are more comfortable and prettier as well.

 

Duane

Mon, 30 Mar 2009 12:02:35

If your list did not grow faster than you checked items off I'd be worried.

My list keeps growing, and more tools keep getting justified because of it.

 

Tue, 07 Jul 2009 20:26:22

Bob,

I am on the cusp of sharpening my own saws and looking into saw vises. I'm tempted to make my own but I have also heard that metal vises hold better and have less vibration and noise. Have you noticed any difference?

 

Thu, 09 Jul 2009 05:04:25

Shannon,
I haven't noticed a difference in amount of vibration in my old metal vise and my new wooden one. Maybe once the wooden vise wears some there might be some difference but I don't expect this for awhile. I think vibration and noise is more a result of how much of the saw plate is exposed above the vise jaws and where the jaws grip the saw plate, not what the vise is constructed out of. If vise material were the culprit, wood should actually dampen better than metal as it's less dense and would absorb vibration better than the dense, stiff metal jaws. If the vise itself is vibrating, whether wood or metal, it needs to be secured to the bench better.

I relieved the insides of the jaws on my wooden vise so they grip only at the very top. Metal jaws are typically relieved in this way as well. This keeps all the pressure right where you are filing. This in my experience is the most important thing to pay attention to in a saw vise. If the jaws contact below their top edge before the top edge contacts, then unwanted vibration will result. You can file metal jaws or scrape/plane wooden jaws to relieve any high spots below the top edge. It also helps to hollow the center portion of the jaws as well so that the outside corners contact first. This creates the same effect as a sprung edge joint. As long as the jaws contact in this way, then just keep the saw plate clamped as low in the vise as you can and vibration will be minimized as much as possible.

Another thing I did to the old metal vise (and will do to the wooden vise as well) that greatly reduces unwanted vibration is to glue some leather to the insides of the jaws. This improves the grip of the vise and dampens any tendency for the saw plate to vibrate. In my experience with both the metal and wooden vise, without the leather, the saw tends to slip some in the jaws. The leather solves this probelm. You could use something like rubber innertube as well.

 



Leave a Reply

    Categories

    All
    Antiques
    Carving
    Design
    Hardware
    Layout
    Planes
    Podcast
    Projects
    Saws
    Sharpening
    Tools
    Turning
    Workbench
    Workshop



    Archives

    November 2009
    October 2009
    September 2009
    August 2009
    July 2009
    June 2009
    May 2009
    April 2009
    March 2009
    February 2009
    January 2009
    December 2008
    November 2008
    October 2008
    September 2008
    August 2008
    July 2008



    Useful Links

    Woodwright's Shop
    Sawmill Creek
    Woodcentral
    Woodnet
    SAPFM
    Hand Saw Filing
    How to Sharpen Edge Tools
    Unplugged Shop



    Hand Tool Retailers

    Tools for Working Wood
    Traditional Woodworking
    The Best Things
    Clark & Williams
    Wenzloff Saws
    Lie-Nielsen
    Lee Valley Tools
    Adria Tools



    Lumber & Supplies

    Hearne Hardwoods
    Irion Lumber
    Mr. Robert's Lumber
    Horton Brasses
    White Chapel Ltd.
    Londonderry Brasses
    Tremont Nail
    Old Fashioned Milk Paint Co.
    Real Milk Paint Co.



    Blogroll

    RSS Feed