My workbench has a ply top, not really suited to removing material. It's a good quality birch Ply though. Lengthwise it's slightly hollow, about 0.6 mm over 2 ft. Pretty handy because a standard veneer helps to get that engineering flatness. :wink:
Well yes obviously - but it doesn't matter because you can put wedges in etc. The underside of a newly sawn board is unlikely to be flat - so how do you cope with that if you are planing the top side? NB a flat bench does not help.Cheshirechappie":oxm2g1ik said:... but if you need wedges under the workpiece in the final stages of planing to hold it flat enough, the bench isn't flat enough to start with.
Jacob":xy9p1mvb said:Well yes obviously - but it doesn't matter because you can put wedges in etc. The underside of a newly sawn board is unlikely to be flat - so how do you cope with that if you are planing the top side? NB a flat bench does not help.Cheshirechappie":xy9p1mvb said:... but if you need wedges under the workpiece in the final stages of planing to hold it flat enough, the bench isn't flat enough to start with.
PS and what's wrong with the Sellers bench? If you really want it flatter surely you'd just plane it (err..) flatter? There's nothing about it to prevent this, is there?
I find myself less and less interested in selected quotations from the scriptures, I want to know what people do themselves. So Dave if you have a sawn board say 1/2" ready for your drawer side how would you plane the first side flat? NB the underside would be not flat, however flat the work surface.David C":35z1i5lf said:Jim Kingshott, apprentice trained cabinetmaker states "It is probably unnecessary to stress how important a truly flat benchtop is"
This becomes obvious when planing 5/16" drawer sides.
Hmm not a lot but so what anyway? Working from gauge marks, with hand tool tolerances, either it fits perfectly (or is slightly loose which is probably good enough) or it's tight so you ease it a bit - without measuring, knowing or caring about thous.I have never advocated working to one thou tollerances, but four thou makes a significant difference to the fit of a tennon.
MIGNAL":3pryfnjx said:The more I read this forum the more I think that Jacobs 'armchair woodworkers' really do exist!
mark w":2dcx4tn2 said:Mignal, Idiot am I, strong offensive word. I believe it was not flat for two reasons, one because of the size of the plane he used on a long top and two, the random way in which he planed it.
Jacob, sorry to hear you can`t or won`t learn from history.
Cottonwood, quickly yes, efficiently not so sure, accurately, probably not, which is more important?
As Mignal decided to get personal, I think I will make this my last post on this thread, hope to see at the European Woodworking show Mignal.
Cottonwood":3eavbjgf said:Mind, Jacob asked a perfectly reasonable question-if flatness is so crucial, then how DO you deal with a rough board, (which is never going to conveniently present itself with a nice ready made perfect flat face to place on a flat bench, for planing to thickness)..
If it IS so important to have a perfect flat reference surface to plane thin stuff &c, then why not have somme sort of specialist planing beam or jig to work on, which you could keep in a safe place, regullarly check it for flatnness, and fit it into the vice or between dogs etc only when needed for a job that did require particular precision (not all jobs do) then store it out of harms way when not in use? Isnt that precisely why we have shooting boards and mitreing boards, as aids for accuracy?
You mean I've got to buy a book or DVD or something Dave? :lol:David C":2czcqeb8 said:.......
Has Jacob stopped reading?......
Nobody is proposing that (though it isn't impossible at all, but it does involve hand and eye skills :shock: ). What I'm saying is that the emphasis on engineering standards of flatness aren't too relevant to woodworkers and that "ordinary" flatness is perfectly OK for the task here (5/16" drawer sides).........
I suspect he knows perfectly well that trying to plane and thickness thin stuff, of some length, accurately on a bumpy surface is virtually impossible.
David
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