Picture of Workmate Sawbuck
With two simple wooden crosspieces, a Workmate becomes a solid and stable sawbuck. 
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Step 1:

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The jaws of the Workmate clamp and hold the sawbuck vee pieces securely. 

Step 2:

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These photos show in detail how the Workmate jaws hold the sawbuck pieces.  They are gripped from above and below in a wedging manner and 'alternate' in such a way that great lateral stability is realized.

Step 3:

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The vees shown here were made from 13" lengths of good 2x4.  They are actually "X" shapes with two short legs, the latter being long enough for the Workmate jaws to grip from below as shown in the previous step.  The short legs on the prototype shown here are about 1-1/2" long.

The angle between the legs is about 85° which is the largest angle our Workmate jaws would accommodate.

Four 3" deck screws hold each crosspiece together - two from one side and two from the other.  A tight clearance hole was drilled through the 'top' piece to preclude splitting which would adversely affect rigidity.  Also, waterproof glue was used to ensure absolute rigidity (but mostly because this tinkerer likes to use glue !).

paolobertoncin11 months ago

good job simple and easy yo use!

kleinjahr1 year ago
Nice and simple. I see you understand K.I.S.S.
I've been looking for a way to hold sections as I cut bowl blanks, with some modification this could do nicely. Definitely do the nail bit and perhaps use bolts at the joints, so as the workmate closes the log would be held tighter.
triumphman1 year ago
I like the frontloader, I sure could use one! Cool chain saw too. Never seen one like that. Greenworks brand ? Who sells them ?
TinkerJim (author)  triumphman1 year ago
That 12" cordless electric chainsaw did all the cutting shown in the photographs of this Instructable. It's not as fast as gas, but quite capable for small jobs and very very handy! Many sellers on and off line carry it.
IamWe1 year ago
Great idea to expand the multifunctionality of the workmate.
nyx7021 year ago
This is a great idea. Thanks for sharing this. I will be making this soon.

One question. Do you undercut the logs (between the Vs) with this setup? Seems like it would be difficult to not damage the Workmate top.
TinkerJim (author)  nyx7021 year ago
All sawbucks in which the log simply simply rests within vees are intended for cutting only in the downward direction ! It is the presence of the saw pushing down from above and the vees below that captures the log and ensures that the log stays put. So the rule is do not cut from below in any such sawbuck.

As to possible damage to the Workmate surface…well...our 'mate is a veteran of 19 years - purchased when finishing off our present country home. Its surface bears the scars of its long devoted service to us, so no thought was given to maybe adding a few more bruises. It has only happened a few times so far, but avoiding further damage is really a wise idea - thank you for bringing it up !

Why don't we make a sacrificial top to lay down over the good top? A piece of 3/4" plywood placed between the vees and covering both jaws would do the trick. Fastening a cleat to the bottom of this plywood sub-table that just drops into the opening between the jaws of the 'mate would keep it where we want it. Another idea would be to lay a 2x4 on top of each jaw with dowel pegs attached that match and drop into the Workmate holes.
Thanks for the detailed reply! Answered my question and then some.
I know what I am making next. Thanks for posting this simple fix.
Nice! A really simple approach - got to ask if you saw mine?!
TinkerJim (author)  Scarface Claw1 year ago
Yes, I saw your log clamping jaws and admired its elegant design very much - would be especially useful for notching, carving, and really all sorts of shaping work on logs.
temper1 year ago
dear me - THIS is the most useful "why the hell didn't I think of that" instructables in recent memory - thanks
a simple but very clever idea. Just what I need . thank you very much.
Breygon1 year ago
great concept. I think I'll be making one of those.
ppatdog1 year ago
This is very clever and useful. The instructions are very clear. Great job!