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LESS2.EXE
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Lesson 2
Block & Wblock
Array
Fillet
How to get a drawing from an archive
Attdef
Attedit
5. Block and Wblock
Block is a command to group a "set" of entities together, so
that this set can have a name and be placed on a drawing in
many places. The three most important features about block are
giving the set a name, and giving a place on the set which can
be used to orient the set on the drawing called ( base point of
insertion) and picking the entities for the set.
After a block has been made it is treated as one entity if you
want to erase one part of the block and pick it, the whole set
will be chosen for erasure.
Blocks, even though they may not be visible may be stored with
any particular drawing. When a Purge is preformed it will get
rid of any blocks which have not been called up in the drawing
during any drawing session. If the block has been used in the
drawing even if the layer it was placed on is off, the block
will be saved with that drawing and not purged.
Wblock very simply allows you to create a block and write it to
the hard drive for use in other drawings.
If you know that the block you want to use has been updated,
you may insert the block by
command:(block to insert:)"blockname="
The equal sign at the end of the block name will search the
standard Autocad paths for the blockname and if it all ready
exists in the drawing it will be updated with the new updated
block it found in the path.
If you want use a block but feel it must be modified for your
drawing. You may insert it by
command:(block to insert:)"*blockname")
The * allows the block to be inserted as its separate entities,
so it comes in "exploded". You may also use the explode command
to return a block to it separate entities after its placed on
the drawing however it does not effect the block which is
stored in the drawing.
6. Fillet
The command fillet is used to show two lines as an
intersection.
The intersection may have a radius or it may have a radius of 0
inches or units for an absolute intersection. It will do a trim
or an extend as required between two lines.
Lesson 2 cont'd
To change the radius from 0 to any other measure use the switch
"R" after calling on fillet.
command:Fillet (R/pick two lines:)"R"<CR> (enter radius):
It will become effective the next time fillet is called.
Don't forget to reset it to 0 after you have made your
intersection.
It is also important to note, that, if the radius is greater
then 0, a third entity the radius now exists. Instead of two
lines, it is now two lines and an arc or radius.
If the line over-running the intersection is longer then either
entity, the entity will be trimmed instead of the over-run.
Care must be taken that the over-run of the entity to be
filleted is shorter then the entity.
7. Array (Hooray for Array)
Array will allow you to chose any number of entities and make
copies in a row a specific distance apart or in rows and
columns at a specified distance or in a circle or arc. An
example of array is when you are starting a new floor plan the
stud marks are arrayed along the top and bottom this is an
example of two entities being arrayed with one row 16" apart.
It would be a good idea to look this one up in the manual as
there are some switches and formats which can get to complex
for here.
8. Archive file Retrieval
This does not have anything to do with Autocad or the network.
Because of our storage resources (Hard & Floppy Drive Space),
we use a program called PKZIP to take our drawing files and
compress them, allowing us to get more drawings on a disk.
You can store (ZIP, compress) one file to its own zip file but
for expediency we use the multiple file technique.
You may take several files and pack them into one file the size
of which is smaller than if the files were stored separately.
An individual drawing may be extracted from the file using
PKUNZIP with the switch " -e"
ex:
PKUNZIP -e zipname.zip (A: or B: floppy drive )drawingname.dwg
<CR>
All the file names in the zip file may be seen with
ex: PKUNZIP -v zipfilename.zip <CR>
The "unziped" file may be copied to your local hard drive or to
the network for you to work on.