On Wed, Apr 7, 2010 at 9:19 AM, John Alsina <jalsina at roadrunner.com> wrote: > > Duane: Don't mean to hijack your thread, but I like your adjustable height workbench. Where did you get the scissors lift mechanism? Does it provide solid support, or does the table wiggle? Thanks. J Jim Moy commented that I had documented the adjustable height assembly table on my blog (thanks for the visit to the blog, Jim!) The scissors lift is taken from a cart sold by Harbor Freight. http://blog.duanemcguire.com/2009/10/31/adjustable-height-workbench-assembly-table/ After building it, I had some conversion with others on a woodworker's forum. So to answer your question in complete detail, John, here's that prior conversation: Quote: Originally Posted by Richard Gibson When I assemble, I do lots of hammering but not "heavy". I put small items together with finish nails in pilot holes so I don't have to beat it to death. Would this table handle that kind of hammering? My response: When this table is at a 40" work height, and I give a solid horizontal shove to one corner, the table top moves about 10 mm. This is due to the play in the scissors jack mechanism. With some fussing, this play could be reduced, but by the nature of the mechanism, it will not be eliminated. I've thought that a nylon strip insert in the wheel ways at that top of the scissors jack would limit the play and still provide a smooth action. But that detail will probably not be implemented. It is going to be great, just the way it is. By the way, vertically, at the left side (fixed side of the jack), more than 150 pounds of downward force is required to get any jiggle in the mechanism. At the right side (free side of the mechanism) somewhat less than 50 pounds of downward force will jiggle the mechanism. All of this is academic, though. With a normal balanced load (workpiece) this adjustable table is going to do its job like a dream. (Even though I'm analytical, I'm excited!) -- Duane McGuire 801-830-5858 http://blog.duanemcguire.com
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