In CAD, the tile has no color attribute. The color we see is the color of the layer or the color of the object itself. Therefore, if you want to change the color of the block, you need to change the color of the layer where the internal element is located or itself. s color. Describe how we actually modify the tile color in general. In AutoCAD2000 and above, you need to double-click the tile to edit the tile, then modify it according to common CAD commands, such as brush or change properties, and then click the save block on the block editing toolbar (automatic pop-up) to modify it. Some of the layer's properties also affect the color, which is related to the overall display options of the set block. If the tile contains multiple nested blocks, you need to edit the tiles one by one. In the following versions of AutoCAD R14, blocks are generally exploded and then packaged into blocks. Obviously, there are many steps to modify the color of the tile in AutoCAD, especially the modification of the color of the tile with more nested blocks. In Zhongwang CAD, in addition to the above traditional steps, the color of any complex block can be easily modified by one command. The specific modification steps are as follows: Execute the "ET Extension Tool - Tile Tool (B) - Change Block Color (B)" command in the menu bar. I have to mention here that Zhongwang's ET extension tool is an effective tool to improve the efficiency of CAD drawing combined with the valuable opinions of the majority of CAD designers. The color of the tile is only one of the more than 80 commands. Closer to home, after executing the block color command, the command line will select the object (BLOCK) as shown below: At this time, select the tile to be modified, and pay special attention to the fact that you can choose more. After selecting, press the right button or space to confirm, then the command line will prompt for a new color number (0-256). Figure: If you want to change to the common color prompted in the command line, enter the color number directly on the command line, you can directly modify it. If you still need to select another color, you can enter "S". After you press Enter, the Select Color dialog box will display the color by color index. Modifying the color of the tile in Zhongwang CAD is as simple as that! Take a closer look at the ET extension tool and there are a lot of features that will make your eyes shine.
A dumbwaiter is a small
freight elevator or lift intended to carry objects rather than people.
Dumbwaiters found within modern structures, including both commercial, public
and private buildings, are often connected between multiple floors. When
installed in restaurants, schools, kindergartens, hospitals, retirement homes
or in private homes, the lifts generally terminate in a kitchen.
The term seems to have been
popularized in the United States in the 1840s, after the model of earlier
"dumbwaiters" now known as serving trays and lazy Susans. The
mechanical dumbwaiter was invented by George W. Cannon, a New York City
inventor. Cannon first filed for the patent of a brake system (US Patent no.
260776) that could be used for a dumbwaiter on January 6, 1883. Cannon later
filed for the patent on the mechanical dumbwaiter (US Patent No. 361268) on
February 17, 1887.Cannon reportedly generated a vast amount of royalties from
the dumbwaiter patents until his death in 1897.
A simple dumbwaiter is a movable
frame in a shaft, dropped by a rope on a pulley, guided by rails; most
dumbwaiters have a shaft, cart, and capacity smaller than those of passenger
elevators, usually 45 to 450 kg (100 to 1000 lbs.) Before electric
motors were added in the 1920s, dumbwaiters were controlled manually by ropes
on pulleys.
Early 20th-century codes
sometimes required fireproof dumbwaiter walls and self-closing fireproof doors
and mention features such as buttons to control movement between floors and
locks on doors preventing them from opening unless the cart is stopped at that
floor. Dumbwaiter Lifts in London were extremely popular in the houses of the
rich and privileged. Maids would use them to deliver laundry to the laundry
room from different rooms in the house. They negated the need to carry handfuls
of dirty washing through the house, saving time and preventing injury.
A legal complaint about a
Manhattan restaurant's dumbwaiter in 1915, which also mentions that food orders
are shouted up and down the shaft, describes its operation and limitations as
follows:
[There is] ... great play between
the cart of the dumb-waiter and the guides on which it runs, with the result
that the running of the cart is accompanied by a loud noise. The rope which
operates the cart of the dumb-waiter runs in a wheel with a very shallow
groove, so that the rope is liable to and does at times slip off. ... The cart
has no shock absorbers at the top, so that when it strikes the top of the shaft
or wheel there is a loud report. ... [T]he ropes of the dumb-waiter strike such
wall at frequent intervals with a loud report. ... [T]he dumb-waiter is often
negligently operated, by running it faster than necessary, and by letting it go
down with a sudden fall.
More recent dumbwaiters can be
more sophisticated, using electric motors, automatic control systems, and
custom freight containers of other kinds of elevators. Recently constructed
book lifts in libraries and mail or other freight transports in office towers
may be larger than many dumbwaiters in public restaurants and private homes,
supporting loads as heavy as 450 kg (990lbs)
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