Staging of Plywood

I have been postponing delivery of the cut plywood panels.  It has been raining and off -loading the parts from a truck into the shop without a forklift may take a while.  The wood will probably show up on Monday.

The delivery will leave me with 21 sheets of cut 4 x 8 foot plywood.  After cutting, each sheet is stacked in place with all of the scrap and surrounding borders laid out exactly the same as before cutting.  This is basically a stack of jigsaw puzzles. To move these into the shop, each loose sheet will need to be transferred separately.  There are around a 190 pieces not including scrap.

The challenge will be finding the best way to stack these. The ordering should depend on the processing usage.

The majority of parts will get one of three treatments before assembly:

1. Sheathing with 200gm/sq m glass (6oz/sq yd)
2. Sheathing with 300gm/sqM glass (8oz/sq yd)
3. Coating with just epoxy

These treatments may be done on one or both sides depending on the part.  Parts that will have to be bent later during assembly will typically only be coated on one (the inside) side.

Parts with puzzle joints must be joined prior to glassing.  The largest joined parts will be 32 feet in length, so it may make sense to do these last.

Multiple un-joined parts maybe glassed at once.  The limit to the number of parts that can be done at once is a combination of epoxy working time, parts that would fit on a 4 x 12 foot table top and my glassing skill or lack thereof.  The parts have to be grouped by the weight of glass they require.

So, how to optimally stack the parts to access them in order?  This will take a bit of scanning of the build plans to figure out which panels get which glass.  This list has to be cross referenced back to the cutting nests.   It maybe be easier to divide the nests into groups separate from the original sheets, but  then quality storage space becomes an issue.

It seems worth the effort, to streamline the sheathing.  Future builders may benefit from the information as well.  A future optimization might be to reorder the cutting based on my findings to that the sheets are stacked in a more natural order at the CNC shop.