Plan of Procedure
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OK, at this point, you should have completed the design process and
now have a scaled drawing in hand as well as a bill of materials and/or
a cut list. You're ready to start putting that thing together! (If you
can still remember what you were building...)
Consider putting together a plan of procedure to guide you through
the construction process. It doesn't have to be elaborate, just
something to help you identify a logical sequence of building steps in
order to organize the work flow. Here is a fairly typical Plan of
Procedure (or, at least one that I like to use) :
1. Lay out sheet stock. Consult your cutting diagram
that was created by hand or with a sheet layout program. Use finished
dimensions for the layout lines. (Note: it's often more productive to
just cut the pieces directly from the cut list rather than transferring
all the cutting lines to the sheet stock - it's your call).
2. Cut sheet stock. Put a good plywood cutting blade
on your table saw and go to town. If you have a lot of sheets to cut,
this might be a good time to invest in a panel cutting saw!
3. Select and lay out solid stock. This is where
your cut list comes in handy. Start with the largest pieces and work to
the smallest, crossing items off the cut list as you go. Use chalk or a
crayon as a marking tool. Lay out widths about 1/4" wider and lengths
about 1"-2" longer than needed to account for stock removal during
milling.
4. Rough cut solid stock. Allow allow extra width
and length as noted above. This step will generally involve the radial
arm saw for cross-cutting and the table saw or bandsaw for cutting to
length.
5. Square and glue up solid stock. Mill the pieces
as necessary to create fairly flat boards with good gluing surfaces. The
glued-up pieces should still be a bit oversized.
6. Mill solid stock to final
dimensions. This is where you put your arsenal of tools to work
- the jointer, planer, table saw, radial-arm saw, chop saw, etc. The end
result should be pieces that are flat, straight, square-cornered and cut
to finished dimensions - with allowances made for joinery!
7. Complete curved and irregularly-shaped parts. The
squared-up blanks for these parts were prepared in the previous step.
For this step, you'll likely be using your bandsaw, jigsaw, sanders, and
miscellaneous hand tools.
8. Lay out and cut joints. This is where the fun
begins. We're talking mortises, tenons, tongues, grooves, rabbets,
frogs, dovetails, half-laps, dowels, biscuits, ... You'll probably spend
a good bit of time making and setting up jigs - but this is what it's
all about. Try to avoid getting saliva on the wood.
9. Perform pre-assembly sanding. It's usually much
easier to sand boards before they're assembled. Note that the sanding
process itself may represent a separate plan of procedure involving a
specified sequence of sanding grits.
10. Assemble and glue up. For some projects, this
will involve both a subassembly and a final assembly. Tools of the trade
here include glue, hammers, clamps, swearing, and praying.
11. Perform post-assembly sanding. This should be a
quick once-over using the final sanding grit (perhaps 180-220). It's
also a good time to touch up corners which tend to get banged up during
assembly.
12. Apply finish. Depending on the complexity,
finishing might warrant its own plan of procedure. For example: apply
sanding sealer, apply base coat, sand after 24 hrs, apply 2nd coat, sand
after 24 hrs, apply final coat, rub out after curing, apply paste wax.
(Or you could just slap on some Watco and call it a day).
13. Install hardware. Hinges, locks, drawer pulls,
knobs, ...
For most hobbyist woodworkers, a formal plan of
procedure is probably not needed for every project - assuming you've
gone through the planning process before and have a viable plan of
attack in mind (or previously committed to paper). However, for
commercial operations, a plan of procedure is a useful tool for keeping
track of the time/labor required at each step, thereby making it easier
to identify bottlenecks in the production pipeline. It can also help to
reduce errors when new employees come on board.
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