bridle

[matteo17]

good evening everyone I can't use the two-way bridles I feel better in the leg with the adjustment spots the engine point does not move the adjustment of the chain I would like to use 2 m chians with 7 cm rings I am certainly wrong with some settings do you have any advice thank you

[jcogdell]

Currently there are no 2m chains or 7cm rings in the stock bridle parts library that the bridle tool uses to configure the steel for a bridle.
 

You can add new parts to your own custom bridle parts library with slings and other objects by opening the Stock Bridle.vwx library file.

Its located in your application folder>Libraries>Defaults>Stock Bridle Material

and can be edited like any other library file.
Bridle parts should be stored in the file resources and have to have the BridleItemRecord attached to them to be classed as bridle parts

The record defines the parts behavior with the bridle tool and object.
the easiest option is to duplicate an existing part and edit it to create the new part.

Once you have added the new parts save the file back into the same location, make sure to create a back up of it as well as it will likely get overwritten if there is a update to the default libraries.

open a new empty file,

open the bridle parts manager and hit the update button to import the new parts into Spotlight.

You should then have access the newly created bridle parts

 

Let me know if you have any more questions

 

here's the link to the help page

https://app-help.vectorworks.net/2022/eng/VW2022_Guide/Hoists/Managing bridle_parts.htm?rhhlterm=bridle bridles parts part&rhsearch=bridle parts

 

[matteo17]

unfortunately I haven't solved it I can't figure out how to create a new stac chain, but when I choose the material from manage bridle parts for the bridle I saw that I can modify the chain from there both length (min and max) and the links

[VIRTUALENVIRONS]

Could you post a picture of what you want to create, from any source.  If we could see the problem, it can probably be solved. 

 

 

 

[matteo17]

Hello I have to create a two-way bidle, the beams are 50cmx20cm, 2mt basket, distance between the beams 4m, fixed leg of the bidle 4m steel cable - leg with 2m steel cable adjustment and 2m stack chain, apex height approximately 13.5 m

[matteo17]

this is an example I have to insert the bridles to have the regulation of the chain in the construction I can't figure out where I'm wrong in the settings, basket 2m leg with adjustment 2m + 2m chain stack fixed leg 4m apex height 13 m anchorage height 16.5 m

provaaa.pdf

[jcogdell]

This is a long standing known issue with the 3D representation of bridles.
its a purely visual issue that doesn't affect the bridle parts calculation or configuration, only how the part symbols are used to draw the bridle when the simplified view of the bridle is turned off in the properties

Its caused by a combination of 2 issues

• Bridle parts are basic symbols not parametric objects, this mean the bridle tool can't adjust the parts geometry to display things like wrapping around a beam or adjust a chain to show only the correct number of links being used.
• the second issues leads on the from the first, the bridle tool doesn't compensate visually for the bridle basket dimensions and draws the parts from the rigging point down to the apex, which results in a visual errors when the bridle parts are  are correctly configured in the bridle configuration dialogue. Either the part overlap at the apex or there is a gap

The limitations of this 3D view mode is why the bridle assmebly diagrams where created, these provide a far clearer and more accurate representaion of how the bridle should be assembled, including the length that each chain must be adjusted to to correctly configure the bridle.

[matteo17]

so even if i don't create a stack chian from mt t but i just change the length when i insert it i will get real adjustment ? che i.postazioni devo usare per relolare in modo ottimo il mio bridle ?