just for fun

[walidantar]

48"by30" with two extentios at the siides - extends the bench by 18" at each side .. 18" is suitable for a lot of vises like veritas sliding tale and face .. height is 32.5 .. legs are 3" thick as the bench-top and leg top and bottom faces are flush with the bench front and rear edges

legs base and top are 6"by30"by3"  and leg-column mortises are 3"by6" are 2"-deep and are 2" offset at the face edges of the leg-base to attach a support for clamping at the side-edge of the tail-vise

bench-top apron are 3"by3" actual-size

[wtnhighlander]

How do the extensions attach? If I read the model correctly, they appear to overhang a stretcher between the legs. Seems like a weak point, to me.

[walidantar]

i'm still thinking of it, lol .. no solution yet

maybe two 2ft steel square tubing connects 'goes in' each  extention and the table top and some bolts under the top - maybe

or just glue the extentions, the benifit is not to deal with long lumbers, the bench then is virtually divided into smaller sections

 

 

[fcschoenthal]

Interesting idea and possible space saver as you could have the bench only as long as required. As wtnhighlander said, the extensions would be the weak point on the project and anything that is holding vises, I wouldn't want weak.

Your idea about steel tubing might work if done right. I have a buffet that has folding wings with a piece that slides out from the top to hold the extension in place. You could have two sliders come out from each side and would probably support the sturdiness that you are looking for. Just make sure that at least half of the sliders are still under the top.

Chris

"It's never too late to have a happy childhood"

[walidantar]

in this case, is it possible to make a 1"by1"by12"-deep mortise for the square steel tubing? i wonder how it's done

 

[walidantar]

i've got it, with using two steel square tubing  for each extension,  grab the extension from it's apron to the apron of the bench top with 6 (1/2" by 6") long bolts .. so it stays simplified .. see the small two circles as the bolts it shows where the bolts should be

[wtnhighlander]

This is a nice idea for a machine workbench or assembly table, But I have my doubts that it would do well for hand tool woodworking. Mass and rigidity are key factors in the performance of a hand tool bench.

[walidantar]

with respect to the long narrow mortise i think /if i'm not wrong it can be done with chisels having no handles like those  'all steel carpenter's chisels' from leevalley .. it will be very challenging .. paring chisels even don't reach 12" of depth 

[walidantar]

added dog-holes on the top & t-tracks .. yet still the  dog-holes on the side for the sliding tail vise 

a little question .. if the holes on the side are not shifted with respect to those on the top and so they intersect inside the apron .. knowing that either the top or the side will be used at a time .. does the hole intersection matters? 

[pkinneb]

Just my opinion but there is no way I would drill all those holes in my bench. I would start out with a half dozen and then add as needed. To many times when I want a flat solid surface not to mention things falling through them. 

[walidantar]

you're right, most of them are not going to be used