Static Systems not calculating

[LenLindhout]

Hi All,

 

I have a problem with calculating some truss systems.
All give the error message "The static system could not be calculated".

 

In VW23 on some trusses I get "Virtual FEM support gets load"

 

In VW24 on some trusses I get "The truss system is not properly balanced"

 

8 Trusses won't calculate, all other trusses and hoist calculate normal.
Of those 8 trusses, some only give the note: "The static system could not be calculated" with no other warnings on that truss system.
Any one any ideas?

 

Thanks!

 

 

[JustinVanHassel]

In your VW2023 screenshots is that a corner block where the hoist is attached? If so, I don't believe you can have a corner block without the adjacent piece of truss attached but @jcogdell or @Scott C. Parkermay know better.

[Scott C. Parker]

4 minutes ago, JustinVH said:

I don't believe you can have a corner block without the adjacent piece of truss attached

Correct, a straight truss with a corner block does not calculate unless another truss goes off to the side. It's a long time limitation that's annoying, to say the least. You need to use a 12" straight truss vs. a corner block.

[LenLindhout]

Thanks guys!

Replacing the box corner for a straight piece of truss did the trick!
Now it smoothly calculates all 112tons of equipment in a heartbeat

[JustinVanHassel]

 

3 minutes ago, LenLindhout said:

Now it smoothly calculates all 112tons of equipment in a heartbeat

That is a lot of equipment!

[ilijahmora]

is there a way to to create a center attach point by editing 3d geometry of a corner block?  Currently my work around is creating a reverse bridle on the corner block with a hoist as the down leg... (another user suggested this).  It would be great if you could just attach a hoist to a corner block directly.. essential for calculating a grid 

[Scott C. Parker]

Connecting to corner blocks shouldn't be an issue. Please post a sample file so that the collective can take a look. 

[ilijahmora]

Hi Scott,  I ended up just extending the truss and so the cornerblocks is not where the hoist attaches..

I have been having weird braceworks issues.. where it wont calculate.  But if i move the house rigging point and then undo (cmd+z) it all works fine.

I have done a VW repair, and am on latest update.. it seems to be mostly fixed now.  But it def killed 24 hours in my flow and me slamming my head through som sheet rock lol 

[Scott C. Parker]

On 8/17/2025 at 1:42 AM, ilijahmora said:

I have been having weird braceworks issues.. where it wont calculate. 

We always want to see why something is not working when users are building their systems. Please post a sample file so that the collective can take a look.